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ISO 27001 consultants: 33 firms compared on ISMS build, certification path, and SOC 2 overlap.

ISO 27001 is the international information-security certification enterprise buyers outside North America expect, and the right consultant is what gets you to a clean Stage 2 audit. These 33 firms build and prepare your ISMS, then hand off to an accredited certification body for the audit. Below you will find use-case picks, the certification cost and timeline, how to screen out body-shops, and how to run ISO 27001 and SOC 2 as one program.

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Updated

Consultant fees
$40K-$90Khands-on mid-size
To Stage 2 audit
4-9 moplus body fees
ISO 27001 firms
336 UK-based
Best by use case

Best ISO 27001 consultant, by use case

Five picks for the engagements buyers actually run: UK certification at volume, ISO with CREST pentesting from one provider, SOC 2 plus ISO as one dual-framework project, boutique internal audit and GRC tooling, and enterprise multi-framework scale. Each names one firm with the qualifier that earned the pick.

UK certification track record

Best for UK organisations pursuing ISO 27001 certification

URM Consulting is the pick for UK organisations pursuing ISO 27001 certification, having helped over 400 organisations achieve it, as an NCSC-assured Cyber Advisor and CREST-accredited consultancy that also covers SOC 2 readiness, GDPR, and pentesting.

ISO + pentest, one provider

Best for UK buyers combining ISO 27001 consultancy with CREST pentesting

Precursor Security is the pick for UK organisations that want ISO 27001 consultancy and triple-CREST-accredited penetration testing from one provider, with offensive findings tied back to the controls auditors check and fed into its own 24/7 UK SOC.

SOC 2 + ISO dual-framework

Best for US SaaS running SOC 2 and ISO 27001 as one dual-framework project

Control and Function is the pick for US SaaS companies that want SOC 2 and ISO 27001 run as a single fixed-scope, fixed-price dual-framework engagement, platform-neutral and handed off cleanly to independent auditors.

Boutique GRC + internal audit

Best for smaller teams needing ISO 27001 internal audit and GRC tooling

Illumen is the pick for smaller organizations and startups that need ISO 27001 internal audit, GRC-platform implementation, and vCISO support from a boutique consultancy founded by Pacific Northwest security leaders with 45+ years of combined experience.

Enterprise multi-framework

Best for enterprises managing ISO 27001 across many frameworks at scale

Tevora is the pick for organizations that need ISO 27001 handled alongside SOC 2, PCI DSS, HIPAA, HITRUST, and CMMC at enterprise scale, with 1,000+ clients served and executive CISO-level support.

Independent firms

33 ISO 27001 consultancies

These firms build and prepare your ISMS. An accredited certification body (not these firms) runs the audit and issues the certificate. Listed verified-first; placement never reorders by who pays.

Archlight

MINNEAPOLIS, MN · USA
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting
Price signal
Remote quarter-time ~10 hrs/wk: $7,500 USD/month; Remote half-time ~20 hrs/wk: $9,000 USD/month; Full-time onsite: $19,000 USD/month (published)

Best for · Healthcare, finance, and government organizations across MENA and GCC seeking ISO 27001, SOC 2, HITRUST, or data privacy certifications with regional regulatory expertise.

Differentiator · One of the few firms with dual US+UAE presence and deep MENA/GCC regulatory knowledge (UAE PDPL, regional health data frameworks), with transparent FTE-based monthly pricing published on-site.

healthcarefinancegovernmentMENA
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Axipro

LONDON, UNITED KINGDOM · UK
Verified
Services
Readiness, ISO 27001, Compliance consulting, Penetration testing

Best for · Growing businesses seeking fast, fixed-fee compliance readiness across SOC 2, ISO 27001, and GDPR with hands-on implementation support and compliance platform management.

Differentiator · Claims 100% certification success rate and 6-week average time to audit readiness through a structured Achievement Plan with end-to-end ownership model.

ISO 27001SOC 2GDPRISO 9001
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BEMO

UNITED STATES · USA
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · SMBs in the Microsoft ecosystem needing fully managed compliance (SOC 2, CMMC, ISO 27001) alongside IT support and security under one roof.

Differentiator · Microsoft Partner of the Year winner that manages the entire compliance process including GRC platform setup (Drata/Vanta), auditor coordination, and 72-hour SLA remediation - not just advisory.

Microsoft 365 / AzureSMB marketCMMCDrata/Vanta GRC management
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Control and Function

DENVER, CO · USA
Verified
Services
Readiness, ISO 27001, vCISO, Compliance consulting
Price signal
Readiness coaching from $8K; full readiness from $15K (published)

Best for · SaaS companies of roughly 50 to 300 employees that want fixed-scope, fixed-price SOC 2 readiness driven end to end, with a clean hand-off to an independent auditor.

Differentiator · Platform-neutral and operationally led, built on running a SOC 2 Type II program end to end with no MSP or compliance platform, and it never performs the audit itself by design.

SOC 2 Type I and II readinessISO 27001 dual-framework engagementsHIPAA for healthtechFractional IT / CISO leadership
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Coral Esecure

NEW JERSEY, USA · USA
Verified
Services
Readiness, Penetration testing, ISO 27001, Compliance consulting

Best for · Globally-distributed organizations needing broad multi-framework compliance consulting - SOC 2, ISO 27001, PCI DSS, GDPR, HITRUST - with offices across 5 countries.

Differentiator · 18+ year consultancy with 500+ implementations and offices in USA, Canada, Germany, India, and Mauritius, covering the widest range of frameworks including newer ones like ISO 42001, DORA, TISAX, and DPDP.

Global multi-office (USA/Canada/Germany/India/Mauritius)AICPA SOC 1 & SOC 2GRC outsourcinginternal audit
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Cyber Forte

MELBOURNE, VIC · Australia
Verified
Services
Readiness, Penetration testing, ISO 27001, Compliance consulting
Price signal
SOC 2 compliance program from $8,000 AUD fixed price (published)

Best for · Australian businesses and government-adjacent organizations needing CREST-certified penetration testing combined with SOC 2 or ISO 27001 readiness.

Differentiator · Australian-owned CREST-certified firm with NV2/Baseline government security clearances, offering fast-track SOC 2 readiness in 6-8 weeks and coordinating with a licensed US CPA firm for attestation.

Australian government clearances (NV2/Baseline)CREST-certified pen testingEssential EightiRAP
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Cypro

LONDON, UK · UK
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · High-growth UK businesses that need fractional CISO leadership plus hands-on certification support for ISO 27001 and SOC 2 compliance.

Differentiator · Partner-led firm (no junior account executives) offering end-to-end ISO 27001 and SOC 2 readiness for UK scale-ups, with direct leadership access within 30-60 minutes.

vCISOISO 27001 certificationSOC 2 readinesspenetration testing
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Fractional CISO

NEWTON, MA · USA
Verified
Services
vCISO, Readiness, ISO 27001

Best for · Growing companies that need a US-based team to build and run a SOC 2 or ISO 27001 program end-to-end, from gap assessment through audit, rather than just buy compliance tooling.

Differentiator · Pairs each client with a two-person team (a virtual CISO plus a cybersecurity analyst) and reports that none of its clients have failed a security audit.

Virtual CISO leadershipSOC 2 program managementSecurity questionnaire responseISO 27001 and GDPR
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Genius GRC

WOODSTOCK, GA · USA
Verified
Services
Readiness, Compliance consulting, vCISO, ISO 27001
Price signal
Advisory CISO program starting at about $18K annually (published)

Best for · Organizations of any size that want a fully managed compliance program with an advisory CISO model starting at ~$18K/year.

Differentiator · Fixed-fee advisory CISO model with CISSP-holding practitioners; guarantees to pay for a new audit if the compliance program fails; serves clients from 5 to 1,000+ employees.

SOC 2ISO 27001PCI DSSHIPAA
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Illumen

PACIFIC NORTHWEST, USA · USA
Verified
Services
vCISO, ISO 27001, Compliance consulting
Price signal
ISO 27001 internal audit at $10K launch pricing (published)

Best for · Smaller organizations and startups that need GRC and vCISO support to stand up or mature a compliance program across SOC 2, ISO 27001, PCI DSS, or CMMC.

Differentiator · A boutique GRC consultancy founded by Pacific Northwest security leaders with 45+ years combined experience; offers framework scoping tools and GRC-platform implementation.

vCISO servicesISO 27001 internal auditGRC platform implementationSOC 2 and PCI DSS readiness
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Isecurion

BANGALORE, INDIA · India
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · Indian SaaS, FinTech, and cloud companies targeting enterprise deals in US, UK, UAE, or Australia that need end-to-end SOC 2 readiness from a CERT-In empanelled partner.

Differentiator · Claims 250+ SOC 2 engagements and 100% audit success rate; CERT-In empanelled; offers a free gap snapshot and CPA auditor coordination as part of readiness service.

SOC 2 readiness and gap assessmentVAPTISO 27001vCISO
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Neutral Partners

MIAMI, FL · USA
Verified
Services
Readiness, ISO 27001, Compliance consulting

Best for · Growing companies that need end-to-end audit readiness across ISO 27001, SOC 2, CMMC, and HITRUST without hiring a full-time internal compliance team.

Differentiator · Runs a managed-GRC model that builds, documents, and tests the program through internal audits, then hands off cleanly to a C3PAO, CPA firm, or certifying body; it never issues the certificate itself.

Managed GRCInternal auditISO 27001 and SOC 2 readinessCMMC and FedRAMP readiness
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Precursor Security

LEEDS, UK · UK
Verified
Services
Penetration testing, ISO 27001
Price signal
Penetration testing from £2,500; managed SOC from £900/month (published)

Best for · UK organisations that want CREST-accredited penetration testing and ISO 27001 consultancy from one provider, with findings tied back to the controls auditors check.

Differentiator · Holds triple CREST accreditation (pen testing, vulnerability assessment, and SOC) and runs a 24/7 UK-based SOC, so offensive findings feed its own detection and compliance work.

CREST penetration testingISO 27001 consultancyManaged detection and responseCyber Essentials certification
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Rhymetec

NEW YORK, NY · USA
Verified
Services
vCISO, Penetration testing, Readiness, Compliance consulting, ISO 27001

Best for · Startups and growth-stage SaaS companies seeking a one-stop cybersecurity partner covering vCISO, compliance readiness, penetration testing, and ISO 27001 internal audits.

Differentiator · Founded 2015 in NYC as a pen testing firm; serves 1,000+ companies including Duolingo; Global InfoSec Award winner 2023; full-stack compliance and testing from SOC 2 to FedRAMP to AI/LLM pen testing; also offers PCI ASV scanning.

SaaSstartupsvCISOpenetration testing
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Romano Security Consulting

MACCLESFIELD, UK · UK
Verified
Services
Readiness, vCISO, Compliance consulting, ISO 27001

Best for · UK organisations - especially public sector, healthcare, and finance - needing boutique SOC 2 and ISO 27001 consultancy with a 100% certification success guarantee from a CISA/CISM-certified sole practitioner.

Differentiator · G Cloud 14 approved UK Government supplier; founder holds CISM, CISA, NCSC CCP IA Auditor Senior Practitioner, and ISO 27001 Lead Auditor credentials; partners with a PCAOB-registered CPA for independent SOC 2 attestations; 20+ years experience.

SOC 2 readinessISO 27001UK GovernmentG Cloud 14
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Securis360

PITTSBURGH, PA · USA
Verified
Services
Readiness, Penetration testing, ISO 27001, Compliance consulting

Best for · Organizations seeking a global cybersecurity partner covering SOC 2 readiness, ISO 27001 consulting, penetration testing, and managed SOC services across the US and India.

Differentiator · Dual US/India presence with CREST accreditation and a broad compliance menu spanning SOC 2, ISO 27001, HITRUST, GDPR, and DPDP (India), served from Pittsburgh headquarters and a GIFT City office.

cloud securitySOC 2ISO 27001HIPAA
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SideChannel

WORCESTER, MA · USA
Verified
Services
vCISO, Readiness, ISO 27001

Best for · Mid-market companies (roughly 25 to 1,000 employees) facing a SOC 2 requirement, an unanswerable security questionnaire, or a departed CISO who need a named security executive within two weeks.

Differentiator · Staffed entirely by former CISOs (its founder co-authored the Wiley NIST CSF book); publicly traded (OTCQB: SDCH) and runs engagements on its RealCISO platform.

Virtual CISO leadershipSOC 2 and ISO 27001 program ownershipBoard and investor reportingSecurity questionnaire and vendor risk
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Silent Sector

SCOTTSDALE, AZ · USA
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · US-based mid-market and emerging companies that need a full cybersecurity program: SOC 2 readiness, penetration testing, vCISO, and multi-framework compliance under one roof.

Differentiator · Expertise-Driven Cybersecurity® brand; proprietary Risk to Revenue Methodology™ for B2B tech; published Cyber Rants podcast and book; locations in Phoenix/Scottsdale and Boise.

mid-market and emerging companiesSaaSfinancial serviceshealthcare
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Soter Advisory

US · USA
Verified
Services
Readiness, vCISO, Compliance consulting, ISO 27001

Best for · SaaS and tech companies scaling toward enterprise sales requiring SOC 2, ISO 27001, HIPAA, PCI DSS, or GDPR compliance without prior compliance experience

Differentiator · Pragmatic, no-template approach: 'No templates, no guesswork. Just a clear path forward, with people who've walked it hundreds of times.' Multi-framework coverage with end-to-end guidance from gap assessment through implementation.

SMB and startupsSOC 2 gap assessmentISO 27001PCI DSS
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Testpros

RESTON, VA · USA
Verified
Services
Readiness, Penetration testing, ISO 27001, Compliance consulting

Best for · Organizations - especially federal, state/local, and defense contractors - needing independent IT testing, compliance readiness, and verification and validation across a broad stack of US government and commercial frameworks.

Differentiator · Strong federal government focus with established government contract vehicles; combines IT testing and software quality assurance with compliance advisory, covering accessibility (Section 508/WCAG) alongside security frameworks.

federal governmentdefense/CMMCFedRAMPSection 508/ADA accessibility
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Tevora

IRVINE, CA · USA
Verified
Services
Compliance consulting, Penetration testing, ISO 27001

Best for · Organizations requiring expert compliance and cybersecurity services across multiple frameworks with executive CISO-level support

Differentiator · 1000+ clients served, 1000+ audits performed; specialized expertise in compliance frameworks (SOC 2, ISO, PCI, HIPAA, HITRUST, CMMC) with emphasis on client experience and outcomes

SOC 2 readinessPCI DSSHITRUSTCMMC
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Trava Security

INDIANAPOLIS, IN · USA
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · Startups, scale-ups, and defense industrial base companies that want managed compliance and security programs with expert practitioners, backed by a 100% certification success rate and G2 High Performer recognition.

Differentiator · 100% SOC 2 certification success rate (self-reported); 4.9/5 rating on G2 across IT Compliance Services and Cybersecurity Consulting; structured tiered service from startups through DIB with CMMC and AI risk as explicit verticals.

startups and scale-upsdefense industrial baseCMMCSaaS
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TrustedCISO

REMOTE, USA · USA
Verified
Services
vCISO, Readiness, ISO 27001
Price signal
vCISO packages from $3,000/month (published)

Best for · SMBs and government contractors that need one dedicated virtual CISO to get audit-ready for SOC 2, ISO 27001, CMMC, or FedRAMP without hiring a full-time security team.

Differentiator · A veteran- and woman-owned firm (VOSB/WOSB) led directly by a 30-year industry veteran and author, reporting a 100% first-attempt audit pass rate.

Virtual CISO leadershipSOC 2 and ISO 27001 readinessCMMC and FedRAMP preparationSecurity questionnaire response
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Truvantis

SAN FRANCISCO, CA · USA
Verified
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · Companies needing a full-service cybersecurity partner for SOC 2 readiness, PCI DSS QSA assessment, penetration testing, and vCISO - with expertise in managing the full audit lifecycle.

Differentiator · Qualified Security Assessor (QSA) for PCI DSS Level 1, enabling formal PCI assessments in addition to SOC 2 and ISO 27001 readiness; dedicated vendor risk management and security program operation services.

SOC 2 readinessPCI DSS QSA assessmentsSaaS penetration testingvCISO
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URM Consulting

UNITED KINGDOM · UK
Verified
Services
ISO 27001, Readiness, Compliance consulting, Penetration testing

Best for · UK organisations that want ISO 27001 certification support plus SOC 2 readiness, GDPR, and penetration testing from a single accredited consultancy.

Differentiator · Has helped over 400 organisations achieve ISO 27001 certification; an NCSC-assured Cyber Advisor and CREST-accredited firm spanning ISO 27001, GDPR, PCI, and pen testing.

ISO 27001 consultancy and auditingSOC 2 readinessGDPR and data protectionCREST penetration testing
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vCISO.com

PITTSBURGH, PA · USA
Verified
Services
vCISO, Readiness, ISO 27001
Price signal
$2,500 two-week Sprint; Strategic vCISO retainer $5,000/month (published)

Best for · SMBs and growth-stage startups that want embedded, month-to-month security leadership with SOC 2 readiness and a penetration test bundled into one engagement.

Differentiator · A practitioner-led firm (CISSP, OSCP, CREST) that runs compliance and offensive testing inside a single engagement and includes a pentest at no extra cost; month-to-month, no annual lock-in.

Virtual CISO retainerSOC 2 readinessISO 27001 readinessPenetration testing
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ACOINFO

COLOMBIA · Colombia
Services
vCISO, Penetration testing, ISO 27001, Compliance consulting

Best for · Latin American organizations seeking a Spanish-language cybersecurity partner with 25+ years of experience across compliance certification and ethical hacking.

Differentiator · One of the few Latin American firms offering virtual CISO plus hands-on certification support across ISO 27001, PCI DSS v4, SOC 2, HIPAA, and HITRUST in Spanish.

ISO 27001PCI DSS v4SOC 2HIPAA
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Atoro

DUBLIN, IRELAND · Ireland
Services
Readiness, ISO 27001

Best for · B2B SaaS companies and startups needing rapid SOC 2 compliance for enterprise sales

Differentiator · Europe's first ISO 42001-certified AI-native consultancy using AI-enhanced compliance methods with premium partnerships

SOC 2 readinessISO 27001ISO 42001AI compliance
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Cybervantage 360

NAVI MUMBAI, INDIA · India
Services
Readiness, Penetration testing, ISO 27001, vCISO, Compliance consulting

Best for · Organizations across Asia-Pacific, Middle East, and global markets needing multi-framework compliance consulting (SOC 2, PCI DSS, ISO 27001, HIPAA, GDPR) with a technology-assisted approach.

Differentiator · Global multi-office presence (USA/UK/Philippines/India/UAE/Singapore) with an AI-powered GRC automation platform and claims 100% certification success rate across frameworks.

Multi-framework global consultingPhilippines Privacy MarkAI-powered GRC platformISO 27001/27701/42001
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Illume Intelligence

CALICUT, KERALA, INDIA · India
Services
Readiness, Penetration testing, vCISO, ISO 27001, Compliance consulting

Best for · Indian and Middle East-based technology companies seeking VAPT, SOC 2 readiness, and ISO 27001 consulting from a cybersecurity specialist.

Differentiator · Covers both compliance readiness (SOC 2, ISO 27001, PCI DSS, HIPAA) and offensive security (pentest, red team, VAPT) with regional presence across India, Middle East, and South-East Asia.

penetration testingVAPTSOC 2 assessment/readinessISO 27001 consulting
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IT Governance USA

UNITED STATES · USA
Services
Readiness, Compliance consulting, Penetration testing, ISO 27001

Best for · Organizations needing a broad range of GRC consulting, penetration testing, and training across SOC 2, ISO 27001, GDPR, and regulatory frameworks in the US, UK, and EU.

Differentiator · Global GRC firm (rebranded as GRC Solutions) with CHECK and CREST-accredited penetration testing, covering US, UK, EU and Ireland; also offers toolkits, training, and books via an e-commerce shop.

SOC 2 readinessISO 27001GDPRPCI DSS
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Nettitude (LRQA Cyber Security)

BIRMINGHAM, UK · UK
Services
Penetration testing, vCISO, Readiness, Compliance consulting, ISO 27001

Best for · Enterprises needing a full-spectrum, CREST-accredited cybersecurity partner covering testing, vCISO, managed SOC, and compliance readiness across EMEA and globally.

Differentiator · Holds 10 CREST accreditations - claimed to be one of only a few organisations worldwide with the full suite; global presence in 150+ countries under LRQA Group; handles SOC 2 readiness, ISO 27001, and PCI DSS compliance alongside pen testing and 24/7 managed SOC.

CREST-accredited penetration testingmanaged detection and responseincident responseSOC 2 readiness
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Secureleap

PORTO, PORTUGAL · Portugal
Services
Readiness, vCISO, Penetration testing, Compliance consulting, ISO 27001
Price signal
SOC 2 consulting from $8,000 to $12,000 USD for a full program; penetration testing from $4,000 USD per assessment; virtual CISO retainers from $2,000 USD per month (published)

Best for · Seed-to-Series B startups needing SOC 2 or ISO 27001 compliance consulting, penetration testing, and virtual CISO support with transparent published pricing.

Differentiator · Founder led security at Aircall, Citibank, and Talkdesk; launched 2024 with explicit published pricing (SOC 2 consulting $8K-$12K, pentest from $4K, vCISO from $2K/mo); 100% audit pass rate claimed; US and EU presence from Portugal base.

SOC 2ISO 27001startupsSeed to Series B
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List or upgrade your firm on this page →

What an ISO 27001 consultant actually delivers

An ISO 27001 consultant builds and prepares your Information Security Management System (ISMS): the scope, the risk assessment and treatment plan, the Statement of Applicability, the Annex A controls, the policy set, and the mandatory internal audit. They get you audit-ready; an accredited certification body then runs the Stage 1 and Stage 2 audits and issues the certificate.

The distinction that matters is between documentation and operation. ISO 27001 certifies a management system that is genuinely running, not a binder of policies. A strong consultant implements controls alongside your engineers, structures evidence the way an auditor expects to see it, and stays through certification and the annual surveillance audits. The ISMS has to demonstrate continual improvement, so the work does not end the day the certificate prints. Be wary of any firm that hands over a template pack and disappears before Stage 2, because at Stage 2 the certification body looks for records that the controls have been operating, not just written down.

How to choose an ISO 27001 consultant without hiring a body-shop

Compare on deliverable and independence, not just headline price. The proposals worth shortlisting name the ISMS scope, the controls in and out, who writes the policies, who implements the technical controls, how internal audit is covered, and a clean hand-off to a separate certification body. The firm that builds your ISMS should never also be the body that certifies it.

A few questions reliably expose a body-shop, the kind of firm that resells a generic toolkit and bills for hours without moving your controls forward. Ask who does the work: a named practitioner with ISO 27001 lead-implementer or lead-auditor experience, or junior staff working off a checklist. Ask to see a sample Statement of Applicability and a gap report, redacted, so you can judge whether the firm thinks in risks and controls or in copied-and-pasted policy text. Ask whether implementation is hands-on or advisory-only, because advisory-only firms leave the hardest work, building and evidencing the controls, with your team. Ask how they handle the internal audit and management review, both of which ISO 27001 mandates and both of which a weak consultant skips. Finally, ask whether they support the surveillance audits in years two and three, or whether they price only the first certificate and move on. UK and EU buyers should also confirm whether the firm holds independent credentials such as CREST accreditation or NCSC-assured Cyber Advisor status, which signal vetted competence rather than a self-declared specialism.

ISO 27001 consultant vs compliance automation tool

A consultant and a compliance platform solve different halves of the same project, and most teams run both. A platform like Vanta or Drata collects and monitors evidence on a schedule. It does not decide your ISMS scope, run the risk assessment, justify each Annex A control in the Statement of Applicability, or perform the mandatory internal audit. That judgment work is what an ISO 27001 consultant delivers.

The failure mode is treating the platform as the whole answer. Automation gathers the artefacts a certification body samples, but ISO 27001 certifies a management system that is genuinely running and continually improving, not a dashboard of green checks. A consultant designs that system, maps a single control set to the framework, coaches you through the internal audit and management review, and prepares you for a clean Stage 2. The efficient stack for most teams is a consultant for the design and preparation and a platform for the evidence collection underneath it. Any firm that positions its tool as a replacement for the ISMS work is selling you evidence plumbing, not certification readiness.

ISO 27001 consultants for SaaS companies and startups

If you are a SaaS company or startup, the fastest path is usually a fixed-scope, fixed-price gap-and-build with a firm that works with teams your size. Scope is typically a single cloud product, which keeps the ISMS boundary tight and the engagement focused, and several firms on this page specialize in exactly this profile.

Two things move a SaaS engagement. First, sequencing against your pipeline: if your nearest deals are North American, many teams certify SOC 2 first and fold ISO 27001 in afterward, reusing the controls they already built, because ISO 27001 and SOC 2 share most of their underlying controls. If you sell into the UK, EU, or APAC, enterprise buyers usually expect ISO 27001 directly. Second, the level of hands-on help you need: a startup with engineers who can implement controls may want a coaching-led engagement, while a team with no security owner wants a consultant who builds the controls alongside them. Ask each firm whether it works with companies your size, whether it runs dual-framework programs, and whether implementation is hands-on or advisory-only, so you are not left doing the hardest work with a checklist.

Why your consultant and your certification body must be different firms

ISO 27001 certification rests on the independence of the certification body. A body that audits a system its own colleagues built cannot be impartial about it, so accreditation rules keep consulting and certification apart. When one firm offers to both implement and certify, treat it as a red flag rather than a convenience.

In practice this means your engagement has two contracts and two invoices. The consultant prepares the ISMS and coaches you through the internal audit. The accredited certification body, an organisation accredited by a national body such as UKAS in the United Kingdom or an ANAB-recognised body in the United States, then runs Stage 1 and Stage 2 and decides whether to issue the certificate. A certificate from a non-accredited body carries far less weight with enterprise procurement, so confirm the body your consultant recommends is accredited before you commit. The upside of the split is real: an independent auditor finds the gaps your consultant missed, and the certificate you earn means something to the buyer reviewing your security questionnaire.

What ISO 27001 certification costs, and why there are two bills

Budget for two separate costs. Consultant fees to build and prepare the ISMS run from the low five figures for a focused gap-and-build engagement to roughly $40,000 to $90,000 for a hands-on program at a mid-size company. The accredited certification body then charges its own Stage 1 and Stage 2 audit fees, plus annual surveillance audits across the three-year cycle.

The spread is wide because scope and starting maturity drive it. A small SaaS company with a single product, a tidy cloud footprint, and some controls already in place sits at the low end. A larger or multi-site organisation with legacy systems, broader scope, and little existing documentation sits at the high end, where the consultant is effectively standing up the security program from scratch. The certification-body fee scales with headcount and the number of sites in scope, and it recurs every year as surveillance, so the three-year total is meaningfully higher than the first-year sticker. The practical move when comparing firms is to ask each one to quote consultant fees separately from certification-body fees, so you are comparing like for like rather than one bundled number against another.

Running ISO 27001 and SOC 2 as one dual-framework program

If you need both certifications, build the control set once. ISO 27001 and SOC 2 share most of their underlying controls, so a combined program that maps a single set of controls to both frameworks is usually cheaper and faster than running them in sequence.

The overlap is substantial: access management, encryption, change management, vulnerability management, logging, and incident response all satisfy requirements on both sides. What differs is the wrapper. ISO 27001 asks for the management-system scaffolding, the risk assessment, the Statement of Applicability, the internal audit and management review, while SOC 2 asks for evidence mapped to the Trust Services Criteria and a CPA to attest to it. A consultant who runs dual-framework engagements builds the common controls once, then produces the ISO-specific artefacts and the SOC 2 evidence in parallel, and hands off to an accredited certification body for ISO and a licensed CPA for SOC 2. Several firms on this page run exactly this model, which is the efficient path when your buyers in North America expect SOC 2 and your buyers in the UK, EU, or APAC expect ISO 27001. The sequence question still matters: if your nearest deals are North American, many teams certify SOC 2 first and fold ISO 27001 in afterward, reusing the controls they already built.

ISO 27001 or SOC 2 first?

Let your buyers decide the order. If your pipeline is mostly North American, SOC 2 is usually the faster path to unblocking deals. If you sell into the UK, EU, Middle East, or APAC, enterprise buyers typically expect ISO 27001 and often will not accept SOC 2 as a substitute.

Because the two frameworks share most of their controls, the framework you start with becomes the foundation for the second. Starting with SOC 2 gives you a control set and evidence base that an ISO 27001 consultant can wrap in the management-system requirements later. Starting with ISO 27001 gives you a documented ISMS that already covers most of the Trust Services Criteria. Either way, the firms on this page that run dual-framework engagements avoid duplicating the policy and evidence work, so the second certification costs far less than the first did.

Certificate vs report

ISO 27001 certifies a system; SOC 2 attests to controls.

The two prove security to different audiences and arrive through different paths. The control work overlaps; the deliverable, the issuer, and the buyer do not.

Factor ISO 27001SOC 2
What you receive Certificate of a working ISMS (3-year cycle)Attestation report on controls (annual)
Who issues it Accredited certification bodyLicensed CPA firm
Who expects it UK, EU, Middle East, APAC buyersNorth American buyers
What the consultant builds Scope, risk assessment, Statement of Applicability, Annex A controlsTrust Services Criteria controls and evidence
How costs split Consultant fees plus a separate certification-body auditReadiness plus a separate CPA attestation
The certification path

From gap analysis to certificate: where the consultant works

An ISO 27001:2022 engagement runs from scoping through Stage 2, then into the surveillance cycle. The consultant builds and prepares the ISMS at every stage; the certification body audits it and issues the certificate. Keep those two roles in different hands.

01Gap analysis and ISMS scoping

Define the boundary of the Information Security Management System, then assess the current state against ISO 27001:2022 and its Annex A controls. The output is a prioritized remediation plan and a defensible scope statement.

02Risk assessment, SoA, and control build

Run the risk assessment and treatment plan, produce the Statement of Applicability that justifies each Annex A control, and implement policies and technical controls. This is the heaviest phase and where a hands-on practitioner earns the fee.

03Internal audit and management review

ISO 27001 requires an internal audit and a documented management review before certification. The consultant runs or coaches these, surfaces nonconformities, and closes them so nothing new appears at Stage 2.

04Stage 1, Stage 2, and surveillance

The accredited certification body reviews your documentation at Stage 1, audits the ISMS in operation at Stage 2, then issues the certificate and returns for annual surveillance audits across the three-year cycle. A good consultant supports you through all of it, not just the first certificate.

FAQ

ISO 27001 consultant questions: cost, independence, and how to choose

The framework, cost, independence, and consultant-versus-tooling questions to settle before you sign with an ISO 27001 consultant.

Is ISO 27001 the same as SOC 2?

No. SOC 2 is an attestation report issued by a licensed CPA firm and is the default in North America. ISO 27001 is a certification issued by an accredited certification body and is the international standard, preferred by UK, EU, Middle East, and APAC buyers. Many companies eventually hold both.

Does an ISO 27001 consultant issue the certificate?

No, and that separation matters. A consultant builds and prepares your ISMS, then an independent, accredited certification body runs the Stage 1 and Stage 2 audits and issues the certificate. A firm that both implements and certifies the same system has a conflict of interest.

Can I run ISO 27001 and SOC 2 at the same time?

Yes, and it is usually more efficient. The frameworks share substantial control overlap (access management, encryption, vulnerability management, incident response), so a combined program builds the controls once and satisfies both. Several firms below run dual-framework engagements.

How long does ISO 27001 certification take?

Most teams reach the Stage 2 audit in roughly 4 to 9 months, depending on starting maturity and scope. The heaviest phase is building the ISMS: scope, risk assessment, Statement of Applicability, Annex A controls, internal audit, and management review.

How much does ISO 27001 certification cost?

Budget for two separate costs. Consultant fees to build and prepare the ISMS run from the low five figures for a focused gap-and-build engagement to roughly $40,000 to $90,000 for a hands-on program at a mid-size company. The accredited certification body then charges its own Stage 1 and Stage 2 audit fees, plus annual surveillance audits across the three-year cycle. Ask each firm to quote consultant fees separately from certification-body fees so you can compare like for like.

Do I need an ISO 27001 consultant, or can I certify on my own?

You can self-implement, and small teams with in-house security expertise sometimes do. Most teams hire a consultant because ISO 27001 has mandatory management-system machinery (risk assessment, Statement of Applicability, internal audit, management review) that is easy to get wrong on a first attempt, and a failed Stage 2 audit costs more in delay than the consultant fee. A consultant is most worth it when you have a hard deadline, little existing documentation, or no one who has taken a system through certification before.

ISO 27001 consultant vs compliance automation tool: which do I need?

They solve different halves of the problem, and most teams use both. A compliance automation platform (Vanta, Drata, and similar) collects and monitors evidence continuously. It does not build your ISMS scope, write your risk assessment, justify your Annex A controls in the Statement of Applicability, or run the internal audit. A consultant does that judgment work. The efficient setup is a consultant to design and prepare the ISMS and a platform to gather the evidence the certification body will sample.

How do I choose an ISO 27001 consultant?

Compare on deliverable and independence, not headline price. Shortlist proposals that name the ISMS scope, who writes the policies, who implements the technical controls, how the mandatory internal audit is covered, and a clean hand-off to a separate certification body. Ask to see a redacted Statement of Applicability and gap report, confirm a named lead-implementer does the work rather than junior staff on a checklist, and check whether the firm supports the year-two and year-three surveillance audits or only the first certificate.

Are there ISO 27001 consultants for SaaS startups?

Yes. Several firms on this page specialize in SaaS and startup engagements, where scope is usually a single cloud product and the fastest path is a fixed-scope, fixed-price gap-and-build. Because ISO 27001 and SOC 2 share most of their controls, SaaS teams selling into both North America and the UK or EU often run the two frameworks as one dual-framework program. All 33 firms here build and prepare the ISMS and hand off to an independent, accredited certification body for the audit.
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