Top AI Governance Consulting Firms For The EU AI Act, ISO 42001 And NIST AI RMF

AI governance has moved from a slide in a board deck to a set of concrete obligations. The EU AI Act sets risk-based duties for providers and deployers of AI systems, with the heaviest requirements on high-risk systems and penalties of up to 7 percent of global turnover. ISO/IEC 42001 gives organizations a certifiable AI management system, and enterprise buyers increasingly ask suppliers for it in security questionnaires. The NIST AI Risk Management Framework has become the common reference point for US companies and regulators.

Most companies are trying to meet these expectations while AI use spreads faster than they can inventory it. Staff adopt AI tools on their own, product teams ship AI features, and agents start acting on company data. Attackers are also using AI, as our guide to AI-powered threats explains. AI governance consulting firms help build an inventory, set policy, assess risk, prepare evidence and, in some cases, certify the result.

The ten firms below combine advisory work, assurance and certification. If you also need help with broader compliance programs, see our list of GRC consulting firms.

AI Governance Consulting Firms At A Glance

Company	Headquarters	Best For	Core Services
Schellman	Tampa, USA	Companies seeking accredited ISO 42001 certification	ISO 42001 certification, AI governance services, AI red teaming
T3	London, UK	Financial services and technology firms needing specialist AI governance	AI inventory and risk management, AI agent controls, model assurance, compliance audits
Trilateral Research	London, UK	Organizations in the UK, Ireland and EU preparing for the AI Act	AI governance frameworks, EU AI Act readiness, risk and impact assessments, GRC software
EY	London, UK	Large enterprises running global AI programs	Responsible AI frameworks, AI governance operating models, risk controls, ISO 42001 support
Accenture	Dublin, Ireland	Enterprises scaling AI that need governance built into delivery	Responsible AI governance, EU AI Act preparation, AI risk assessment, testing and monitoring
Tevora	Irvine, USA	Mid-market and enterprise companies combining AI governance with security testing	AI program governance, AI risk assessment, ISO 42001 support, AI red teaming, vCISO
A-LIGN	Tampa, USA	Companies combining ISO 42001 with ISO 27001 and SOC 2 audits	ISO 42001 readiness assessments, ISO 42001 certification, AI governance hub
Coalfire	Chicago, USA	Cloud and federal-market companies adding AI to existing compliance work	ISO 42001 assessments, GenAI and agentic security framework, AI threat hunting
Protiviti	Menlo Park, USA	Enterprises wanting governance tied to internal audit and risk functions	AI governance, legal and regulatory risk management, model testing, security reviews
BSI	London, UK	Organizations wanting ISO 42001 training and certification from a standards body	ISO 42001 certification, AI management system training, standards publications

Best AI Governance Consulting Firms For 2027

1. Schellman — First ANAB-Accredited ISO 42001 Certification Body

Schellman is a Tampa-headquartered attestation and certification firm that says it was the first certification body accredited by ANAB for ISO 42001. That accreditation matters: an ISO 42001 certificate carries more weight with customers and regulators when it comes from an accredited body. Schellman also runs an AI governance suite to help organizations meet domestic, cross-border and foreign AI compliance obligations, and its AI and ISO practices are led by Principal Danny Manimbo.

Beyond certification, Schellman offers AI red teaming assessments that test generative AI systems for prompt injection, data leakage and unintended model behavior, so findings about technical controls can feed directly into the management system audit. Many companies already use Schellman for SOC 2 or ISO 27001, which makes it simple to add ISO 42001 to an existing audit cycle. It is the best fit for SaaS and AI product companies that need a credible, independent ISO 42001 certification to win enterprise deals.

2. T3 — Specialist AI Governance, Safety And Assurance Across All Three Frameworks

T3, the trading name of London-based T3 Consultants Ltd, is a specialist AI governance, safety and assurance firm focused on financial services and technology companies. Its seven-layer framework covers governing AI through inventory, risk management and AI security including red teaming; building and operating AI through implementation support and AI agent controls; and assuring AI through model assurance testing and compliance audits aligned with the EU AI Act, ISO/IEC 42001 and the NIST AI RMF.

Unlike generalist consultancies, AI governance is T3’s whole business. The firm says its team includes former regulators, ex-chief risk officers, a former Google Responsible AI lead and researchers from Cambridge and Stanford, a mix well suited to regulated sectors where model risk and conduct rules already apply. Its coverage of AI agent controls is useful as firms move from chatbots to agents acting on customer data. It suits banks, insurers, fintechs and AI vendors that want depth across all three frameworks from one specialist team.

3. Trilateral Research — Responsible AI Advisory Plus A Dedicated AI GRC Platform

Trilateral Research was founded in 2004 as a research organization and has grown into a provider of responsible AI services, with offices in London and Waterford, Ireland. It builds AI governance frameworks covering operating models, transparency and accountability, prepares clients for the EU AI Act, GDPR and ISO standards, and runs AI risk and impact assessments as well as algorithmic fairness and accountability audits. It works across financial services, healthcare, industrials and the public sector.

What sets Trilateral apart is that it pairs advisory with its own Trilateral GRC Suite, a platform for managing AI risk, monitoring compliance and keeping audit trails. Clients can choose fully managed support or templates and training, and the firm also runs AI literacy programs, which the AI Act now expects for staff working with AI. Its research roots give it depth on ethics and social impact. It fits European organizations that want help with EU AI Act compliance and a tool to keep governance running afterward.

4. EY — Responsible AI Framework With ISO 42001 Certification Support

EY, headquartered in London, offers a Responsible AI framework intended to help organizations manage AI risk across the full lifecycle. Its work covers AI operating models and governance structures, visibility into how AI is used across business functions, responsible-AI-by-design strategies, consistent risk controls and measurement, and checks that deployments meet internal standards and regulatory requirements. It also supports ongoing monitoring of AI performance to prevent unintended outcomes.

EY has published a case study of helping an AI solution provider achieve ISO 42001 certification, and it brings legal, technology risk and audit teams together under one engagement. Its scale is the main advantage for multinationals that must reconcile the EU AI Act, US frameworks and local rules across many subsidiaries. As with any large firm, quality depends on the specific team assigned, so ask who will staff the work. It is best for large enterprises that need AI governance embedded across global operations.

5. Accenture — Responsible AI Governance Tied To Large-Scale AI Delivery

Accenture, headquartered in Dublin, helps organizations establish AI governance frameworks with clear accountability for how AI is designed, deployed and used. Its responsible AI services include AI risk assessments, ongoing testing for fairness, explainability, transparency, accuracy and safety, continuous monitoring and compliance actions. It positions this work as preparation for the EU AI Act, which it describes as having major implications for multinationals that develop or deploy AI in the EU.

Accenture’s advantage is that it often builds the AI systems it helps govern, so governance controls can be designed into delivery rather than added later. It also stresses that responsible AI compliance spans workforce impact, privacy, security and sustainability, and coordinates those teams. Its responsible AI page does not name ISO 42001 or the NIST AI RMF, so confirm framework experience during scoping. It suits large enterprises running major AI transformation programs that want governance from the same partner.

6. Tevora — AI Governance Paired With AI Red Teaming And Pen Testing

Tevora is a cybersecurity and compliance consultancy with offices in Irvine, California, and Fairfax, Virginia. Its AI services include AI program governance to set up an operating model, AI compliance services that map and demonstrate adherence to obligations, AI readiness and impact assessments, AI risk assessments and ISO 42001 compliance support. Its guidance covers the EU AI Act’s risk-based approach and how obligations differ for providers, deployers, importers and distributors.

Tevora stands out for pairing governance work with offensive testing: it offers AI red teaming, AI-powered penetration testing and adversarial AI resiliency testing, plus AI security assurance that validates systems against frameworks. That lets one firm write the policy and then test whether controls hold. It also provides GRC support and vCISO services, useful for companies without a dedicated AI risk owner. It fits mid-market and enterprise firms that want governance and security testing from one team.

7. A-LIGN — ISO 42001 Readiness And Certification Alongside ISO 27001

A-LIGN is a cybersecurity compliance firm based in Tampa that serves more than 6,400 organizations. It describes itself as an accredited ISO 42001 certification body and one of the first to certify AI management systems. Its ISO 42001 service starts with a pre-assessment that identifies gaps and prepares materials, followed by a formal two-stage certification audit: Stage 1 reviews documentation and Stage 2 checks the AI management system is implemented and operating.

Because A-LIGN is accredited for both ISO 42001 and ISO 27001, it can assess them concurrently, which saves time for companies already certified for information security. Engagements run on its A-SCEND audit platform. A-LIGN is also clear that ISO 42001 certification is not legal compliance with the EU AI Act, while noting it maps to the Act and to the NIST AI RMF. It suits SaaS companies that want ISO 42001 certification folded into their existing audit calendar.

8. Coalfire — ISO 42001 Assessments Within A Cloud And Federal Compliance Practice

Coalfire is a cybersecurity and compliance firm known for FedRAMP, CMMC and cloud assessments, and its contact page lists its mailing address in Chicago. Its assessment services cover ISO 42001 alongside CSA STAR and HITRUST, and it offers a GenAI and agentic security framework designed to secure generative AI systems and align them with compliance requirements from the start. Its DivisionHex team adds AI threat hunting focused on shadow AI.

Coalfire has also built named AI offerings, including an AI Trust Package and AI Security and Trust Engineering services. The firm’s strength is in companies already working through heavy compliance programs, particularly cloud providers and suppliers to the US government, where adding ISO 42001 to an existing assessment relationship reduces cost and coordination. Ask about NIST AI RMF and EU AI Act experience during scoping, as its public pages focus on ISO 42001 and security. It suits cloud and federal-market vendors.

9. Protiviti — AI Governance Integrated With Internal Audit And Risk Consulting

Protiviti is a global consulting firm headquartered in California, with Menlo Park and San Ramon listed as its headquarters locations. Its AI services include governance that balances legal, regulatory and technical risk management, security reviews and model testing for new and existing AI systems, and ongoing lifecycle management of AI systems. Its AI Factory approach includes standardized governance frameworks that clients can adapt.

Protiviti’s background in internal audit, risk and compliance consulting makes it a natural fit for companies that want AI governance owned by the same functions that already manage operational and regulatory risk. That helps when the board or audit committee wants AI risk reported in a familiar format. Its public AI pages do not name specific frameworks, so ask for its EU AI Act, ISO 42001 and NIST AI RMF methodology. It suits large companies, especially in financial services, with mature risk functions.

10. BSI — ISO 42001 Training And Certification From The UK National Standards Body

BSI is the London-headquartered UK national standards body, and it produces standards, audits and certifies management systems, and trains people to implement and audit them. For AI, it offers ISO/IEC 42001 certification, artificial intelligence training courses on implementing and auditing an AI management system, and access to the standard itself and related publications. It also groups AI work under a digital trust practice.

BSI is not a consultancy in the usual sense, and certification bodies cannot also design the system they certify. Its value is the training and the certificate: internal teams can learn to build and audit an AI management system, then have it certified by a widely recognized name. Many organizations pair BSI with an advisory firm from this list. It is a good fit for companies, especially in the UK and Europe, that want ISO 42001 certification from an established standards body.

How To Choose An AI Governance Consulting Firm

AI governance consulting covers very different services. These questions help you buy the right one.

Do We Need An Advisor, A Certifier Or Both?

Advisors help design your AI inventory, policies, risk assessments and controls. Certification bodies such as Schellman, A-LIGN and BSI audit the result against ISO 42001, and independence rules mean the same firm should not do both for you. Many companies hire an advisor first and a certifier once the AI management system has run for a few months.

Which Framework Should We Start With?

If you place AI systems on the EU market, EU AI Act compliance is a legal obligation and should drive priorities. If customers are asking for proof of governance, ISO 42001 certification gives you something auditable. The NIST AI RMF is a practical, voluntary structure for AI risk management and maps well to both. A good firm will build one control set that serves all three.

Does The Firm Understand AI Systems, Not Just Policy?

Governance fails if the people writing policy cannot judge model risk, data flows or how an AI agent can be manipulated. Ask who on the team has technical AI experience and whether the firm can test controls, for example through AI red teaming. Our list of AI red teaming companies covers specialists if your advisor cannot.

How Will Governance Keep Up After The Project Ends?

AI inventories go stale quickly. Ask how the firm will help you keep registers, risk assessments and evidence current, whether through a platform, templates or a retained service, and who internally will own the program.

Is The Firm Experienced In Our Sector?

Financial services, healthcare and the public sector each layer their own rules on top of AI frameworks. A firm that knows your regulators and existing model risk or privacy requirements will avoid duplicating controls you already have.

Conclusion

The EU AI Act, ISO 42001 and the NIST AI RMF all point toward the same basics: know what AI you use, assess its risks, put controls in place and keep evidence that they work. The firms on this list help with different parts of that journey, from specialist advisory at T3 and Trilateral to accredited ISO 42001 certification at Schellman, A-LIGN and BSI, and enterprise-wide programs at EY, Accenture and Protiviti. Start with an AI inventory and a gap assessment, decide which framework matters most to your customers and regulators, and choose advisors and certifiers separately.