Mazars UK

What Mazars UK does

Forvis Mazars LLP is the UK member firm of Forvis Mazars Group, a leading international professional services network operating across 100 countries and territories with approximately 40,000 professionals globally. The firm is registered in England and Wales as a limited liability partnership (registered number OC308299) and is licensed to carry on audit work in the UK by the Institute of Chartered Accountants in England and Wales under reference C001139861. Its UK headcount is in the 1,001-5,000 range, distributed across 14 UK offices including the London headquarters at 30 Old Bailey and regional locations in Birmingham, Bristol, Edinburgh, Glasgow, Gloucester, Leeds, Leicester, Manchester, Milton Keynes, Newcastle, Nottingham, Poole, and Sutton.

The firm delivers a full-service portfolio spanning audit and assurance, tax (business tax, global employer solutions, transfer pricing, tax disputes), financial advisory (deals, financing, restructuring, crisis and disputes), consulting (AI consulting, people advisory, commercial advisory, financial crime risk management, risk consulting, technology and digital consulting), accounting and outsourcing, international business services, private client services (wealth management, family office, trustee services), sustainability and ESG services, and legal services. Its technology and consulting practice includes AI advisory covering generative AI adoption strategy and AI implementation for clients. Distribution is partner-led enterprise field sales through direct engagement, the website contact channel, phone, and a federated international network for cross-border mandates.

Revenue is generated entirely on a professional services fee basis, with no publicly disclosed pricing or contract structure; engagements are quoted on a scope-and-complexity basis across audit, tax, advisory, consulting, and outsourcing mandates. The firm serves eight primary vertical segments: consumer (retail, luxury, food & beverage, hospitality, transport), energy & infrastructure (oil & gas, power & utilities, renewables, hydrogen), financial services (banking, insurance, asset management, real estate), life sciences & pharma, manufacturing (aerospace & defence, automotive, chemicals, construction), private equity, public & social sector (government, health, charities, education, social housing, CCAS Framework), and technology, media & telecommunications. Named enterprise clients include Pret A Manger, Shot Scope, Rabbie's, and Prestonfield House, illustrating breadth across large multinational, mid-market technology, tourism, and luxury hospitality. The firm's roots trace to Neville Russell's 1998 merger with Mazars & Guerard, and it rebranded from Mazars to Forvis Mazars in 2024 following the global combination between US-based Forvis and the international Mazars network.

Name

Mazars UK

Legal name

Forvis Mazars LLP

Website

https://mazars.co.uk

Company type

Private

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Forvis Mazars UK is the UK member firm of Forvis Mazars Group, delivering audit, tax, advisory, consulting, outsourcing, ESG, and legal services to enterprise and public sector clients across 14 UK offices and via a 100-country global network.

Ownership category

akta.pro rank

Product category

Audit, Tax and Advisory Services

NAICS

Offices of Certified Public Accountants (541211), Administrative Management and General Management Consulting Services (541611), Other Management Consulting Services (541618), Accounting, Tax Preparation, Bookkeeping, and Payroll Services (5412)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742), Investment Advice (6282)

akta.pro primary industry

Tax Operations Support (Indirect Tax, Withholding, Compliance Admin) (BPAAAGAI)

akta.pro secondary industries

Global Payroll & Multi-Country Payroll Management (BPACAHAC), Tax Services (Withholding, Reclaims, FATCA/CRS) (FSAAAOAM), Family Office Advisory & Outsourced CIO (OCIO) (FSAAADAC)

Keywords

• Audit assurance services
• Tax advisory services
• Management consulting
• Financial advisory
• Outsourcing services

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices14 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Audit & Assurance Services: Financial audit, accounting and corporate reporting, independent assurance and reviews, monitoring trustee services, and training services for regulated industries
2. Tax Services: Business tax services, global employer solutions, global tax services, and tax disputes resolution
3. Consulting Services: Management consulting, risk consulting, people advisory, commercial advisory, financial crime risk management, accounting advisory, and AI consulting
4. Financial Advisory: Deals, financing, crisis and disputes, restructuring and insolvency services
5. Accounting and Outsourcing: Accounting compliance, corporate secretarial, financial outsourcing, outsourced HR and payroll services
6. Private Client Services: Private client tax, international private client tax, financial planning, wealth management, family office services, estate administration, and trustee services
7. Sustainability and ESG: ESG strategy, decarbonisation, responsible supply chain, modern slavery consulting, reporting and regulation, human rights, ESG assurance

Go-to-market motion2 records

Distribution channels4 records

Marketing channels12 records

Core offering

Forvis Mazars UK is an international audit, tax and advisory firm providing integrated professional services including financial audit and assurance, corporate and personal tax services, financial advisory (deals, restructuring, crisis), management and technology consulting (including AI consulting), accounting and outsourcing, international business services, private client wealth management, sustainability and ESG advisory, and legal services. Services are delivered to organisations across the UK through a network of 14 offices as part of the global Forvis Mazars Group.

Product overview

Forvis Mazars UK is an international professional services firm operating as an integrated, independent network specialising in audit, accountancy, advisory, tax, legal, and consulting services. The firm offers a unified portfolio of professional services across multiple practice areas: Audit & Assurance, Tax Services, Financial Advisory, Consulting (including AI consulting services), Accounting and Outsourcing, International Business Services, Private Client Services, Sustainability and ESG, and Legal Services. The firm serves diverse industries including financial services, insurance, banking, energy, manufacturing, technology, media and telecommunications, public sector, and healthcare. Additionally, the firm maintains an alumni network platform (hosted by Enterprise Alumni) for former employees. All services are delivered through a network of UK offices spanning major cities including London, Manchester, Birmingham, Bristol, Edinburgh, Glasgow, Leeds, Leicester, Newcastle, Nottingham, and others.

Differentiator

Problem solved

Functional benefit

Products and services

• Audit & Assurance Financial audit, accounting and corporate reporting, independent assurance and reviews, monitoring trustee services, and training services for audit professionals across regulated industries.
• Tax Services Business tax services, global employer solutions, global tax services, and tax disputes resolution for corporate and private clients.
• Financial Advisory Deals, financing, crisis and disputes, and restructuring and insolvency services for corporate transactions and financial challenges.
• Consulting AI consulting services, people advisory, commercial advisory, financial crime risk management, management consulting, risk consulting, technology and digital consulting, and accounting advisory services.
• Accounting and Outsourcing Interim support services, accounting compliance, corporate secretarial services, medical accounting services, financial outsourcing, outsourced HR services, and outsourced payroll services.
• International Business Services Global compliance management and reporting, setting up a business in the UK, and international expansion advisory services for cross-border clients.
• Private Client Services Private client tax services, international private client tax, financial planning, wealth and investment management, family office services, estate administration, trustee services, and private client services for business owners.
• Sustainability and ESG ESG strategy, decarbonisation, responsible supply chain, modern slavery consulting and reporting, reporting and regulation, human rights, and ESG assurance services.
• Legal Services Legal advisory services delivered as part of the integrated professional services offering.

Named customers4 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature2 records

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• IntoUniversitycoreStrategic or Co-development PartnerPartnership with IntoUniversity for corporate social responsibility and educational outreach. The firm works with IntoUniversity to support widening participation and social mobility through mentoring, career insights, and work experience programmes for young people from disadvantaged backgrounds.
• FT LivemajorGTM or Marketing PartnerForvis Mazars sponsors FT Live events, providing thought leadership and brand visibility at Financial Times industry events and conferences.
• TP Minds InternationalminorGTM or Marketing PartnerProud sponsor of TP Minds International conference, a transfer pricing focused industry event.
• Edinburgh Book FestivalminorGTM or Marketing PartnerSponsorship of Edinburgh Book Festival, supporting arts and cultural events in Scotland.
• Birmingham ChangemakersminorGTM or Marketing PartnerMembership in Birmingham Changemakers initiative, supporting local community and business development in Birmingham.
• MIPIM 2025minorGTM or Marketing PartnerPresence at MIPIM 2025, the world's largest real estate property show, with networking and business development activities.
• Enterprise AlumnicoreTechnology or IntegrationEnterprise Alumni provides the alumni network platform service for Forvis Mazars UK. The platform enables former employees to stay connected, access career opportunities, and maintain alumni relationships. Service hosted on Amazon Web Services (AWS) infrastructure.
• Forvis Mazars Foundation UKcoreStrategic or Co-development PartnerThe Forvis Mazars Foundation UK has awarded £308K in grants to support charitable initiatives. The foundation provides grants to non-profit organisations aligned with the firm's community investment priorities.

Scale indicators4 records

Recent moves9 records

Expansion highlights5 records

Direct peers

• EY UK: UK member of Big Four providing assurance, tax, consulting, and strategy services. Directly comparable across audit, tax, and consulting lines with overlapping sector specialisations including financial services and public sector.
• PwC UK: UK arm of Big Four network delivering audit, tax, and advisory services. Competes with Forvis Mazars UK across all service lines, particularly for FTSE-listed audit and large corporate advisory.
• KPMG UK: UK member of Big Four offering audit, tax, and advisory services. Direct competitor for large-cap audit and consulting mandates, with strong presence in financial services and public sector.
• Deloitte UK: UK member of the Big Four, offering audit, tax, consulting, and advisory services across all major sectors. Direct competitor for enterprise audit, tax, and consulting mandates in the UK market.
• Crowe UK: UK member of Crowe Global, offering audit, tax, advisory, and risk services to mid-market and listed clients. Competes in similar mid-tier audit and advisory segments.
• RSM UK: UK member of RSM International, the world's sixth-largest audit network. Provides audit, tax, and consulting to mid-market companies, with comparable geographic and sector coverage.
• Grant Thornton UK: UK member of Grant Thornton International, providing audit, tax, and advisory services to mid-market clients. Competes head-to-head with Forvis Mazars UK for AIM-listed and mid-cap audit mandates.
• BDO UK: Mid-tier UK accounting and advisory network providing audit, tax, and consulting services. Closest direct peer in scale and positioning, competing for mid-market and listed audit mandates outside the Big Four.

Emerging players

• Moore Kingston Smith: UK-focused top-20 accountancy firm offering audit, tax, and advisory services, particularly to charities, not-for-profit, and mid-market private clients. Adjacent competitor in mid-market segments.
• MHA (UK): Top-15 UK accountancy network providing audit, tax, and advisory services with strong regional presence. Competes in the same mid-market and regional audit space as Forvis Mazars UK.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/mazars_uk
• YouTubeyoutube.com/channel/UCAP2Lj8FSXO-2eGUKgCDsiw
• LinkedInlinkedin.com/company/forvis-mazars-in-the-uk
• Instagraminstagram.com/forvismazarsuk
• TikToktiktok.com/@lifeatforvismazarsuk

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mazars UK