The 100 largest consulting firms in London

EYey.com

A global organization with diverse teams in over 150 countries provides assurance, consulting, law, strategy, tax, and transactions to help clients grow and transform

WTWwtwco.com

Offering data-driven solutions in people, risk, and capital areas, leveraging global expertise to enhance strategy, resilience, workforce motivation, and performance

Aruparup.com

A global collective of designers and consultants dedicated to sustainable development, collaborating with clients to shape a better world using technology and imagination

Kantarkantar.com

Global leader in marketing data and analytics with deep expertise, innovative technology, and insights to help clients understand people and drive growth worldwide

Mott MacDonaldmottmac.com

The company focuses on improving society through digital innovation, excellence, and solving intricate challenges with clients to deliver better outcomes

Petrofacpetrofac.com

International energy service provider specializing in designing, building, managing, and maintaining oil, gas, refining, and renewable energy infrastructure for leading energy companies worldwide

Cloud Consultingccltng.com

Oversees national education policies, youth programs, and administration to support learning and development across France.

Savillssavills.com

Global real estate advisory firm providing tailored solutions and expert advice for residential and commercial property clients worldwide.

PwC UKpwc.co.uk

Professional services firm focusing on building trust in society and solving important problems through partnership and commercial expertise.

AMSweareams.com

Global talent solutions business specializing in sourcing, selecting, and retaining top talent through digital innovation, HR expertise, and a holistic approach to workforce management

Capcocapco.com

Global technology and management consultancy specializing in digital transformation, data-driven solutions, and innovation for banking, payments, capital markets, insurance, and energy sectors.

Azetsazets.com

A leading professional services firm in Northern Europe, providing advisory, accounting, audit, HR, recruitment, outsourcing, and technology solutions to clients

BDO UKbdo.co.uk

Provides tax, audit, assurance, accounting, business advisory, and outsourcing services to diverse sectors with a client-focused, innovative approach.

Qualitestquality-ai.com

Global leader in AI-powered Quality Engineering services, specializing in superior customer experience, accelerated release velocity, and tailored solutions for various industries

FinTech Foundryfinancemarketing.org

The company specializes in making finance more approachable through business consultation, brand strategy, and digital marketing services for financial services companies

Lloyd's Registerlr.org

Provides professional engineering and technology services to improve safety and performance of critical infrastructures worldwide, supporting engineering research and education.

Vialtovialtopartners.com

Global mobility ecosystem transformation through tax, immigration, compensation, and work strategy solutions for multinational organizations in 150+ countries

Daviesdavies-group.com

Specialist professional services and technology firm providing risk management, business process optimization, and digital transformation solutions to insurance, regulated, and global businesses

PA Consultingpaconsulting.com

Global teams of strategists, technologists, and experts deliver innovative solutions across industries to drive transformation and lasting client success.

Accenture UK & Irelandaccenture.com

A global professional services company leveraging technology, innovation, and industry expertise to drive digital transformation and deliver tangible outcomes for clients worldwide

UNKNOWNweareunknown.io

The company fosters diversity and creativity by facilitating connections, welcoming different perspectives to open up new possibilities in creative communities

Costain Group PLCcostain.com

A pioneering infrastructure company in the UK, Costain delivers sustainable solutions for energy, water, transportation, and defence markets while focusing on net zero goals and inclusive practices

QX Global Groupqxglobalgroup.com

Partnering with mid-market organizations to reduce operating costs, improve efficiency, and scale confidently through sector expertise, process optimization, and technology.

Ciklumciklum.com

Global digital solutions company providing tailored solutions for Fortune 500 and fast-growing organizations worldwide, leveraging emerging technologies for various clients

Ricardoricardo.com

Global consulting firm providing strategic, environmental, and engineering solutions focused on transport, energy, and climate for sustainability.

Two Circlestwocircles.com

Management of extensive fan data to enhance audience engagement and increase revenue for leading sports and entertainment organizations worldwide.

Currie & Browncurriebrown.com

Global project management and cost advisory firm providing risk management, cost control, and strategic guidance throughout asset lifecycles worldwide.

GlobalData Plcglobaldata.com

A leading information services company helps organizations and decision-makers predict the future, make informed decisions, and gain a competitive edge

Sumersumer.co.uk

Championing small to medium UK and Ireland businesses by uniting expert firms to provide collaborative support and growth solutions.

EY Studio+ey.com

Global team combining design, technology, and commercial insight to enhance customer experience and drive business transformation across industries.

CACI Ltdcaci.co.uk

Provides data, marketing, IT solutions, software, consulting services, and managed services to public and private sector clients. Improves sales, marketing, operations, and reduces costs.

Info-Tech Research Groupinfotech.com

This company provides unbiased, highly relevant IT research and tools to help CIOs and IT leaders make strategic, informed decisions for their organizations

NashTechnashtechglobal.com

Expert teams delivering complex IT projects globally, solving business challenges with smart technology solutions and creating value.

10N Collective10ncollective.com

Global collective of urbanism, architecture, and design experts focused on sustainable citymaking, environmental and social responsibility across continents.

ABLabl-group.com

Global independent energy and marine consultant de-risking and driving energy transition, offering expertise in renewables, maritime, and oil and gas sectors worldwide

GPL CONSULTING UK LTD

The company provides a wide range of consultancy services in management, defense, law enforcement, IT, along with web development, telecommunication, software solutions, and international trade

CFcarnallfarrar.com

This company specializes in healthcare improvement through consulting, data services, and products for health systems and the life sciences industry

Gardiner & Theobald LLPgardiner.com

Independent consultancy specialising in construction, risk minimisation, project leadership, commercial success, and ethical community support within the built environment.

Connectweconnect.tech

Communication experts providing solutions in Contact Centre, Unified Communications, and Network Services, delivering digital transformation through bespoke strategies for businesses globally

Barnett Waddinghambarnett-waddingham.co.uk

Providing expert consultancy in risk, pensions, investment, and insurance with trusted partnerships and innovative solutions for diverse clients.

Avalere Healthavalerehealth.com

Avalere Health is a commercialization partner for biopharmaceutical, medical technology, and wellness industries, helping clients navigate healthcare and accelerate innovation for better health

HKAhka.com

Global consultancy specializing in risk mitigation, forensic investigations, dispute resolution, expert witness, and litigation support services for clients.

Isioisio.com

A leading financial services company challenging traditional thinking in pensions, benefits, and investment advice by providing expertise and innovative solutions

Hoare Leahoarelea.com

Engineering consultancy offering MEP, environmental, and sustainability services with creative solutions for complex building design and performance challenges.

Guden for Educationgudens.com

A leading Microsoft 365 Education Partner offering consulting, implementation, and support services to help educational institutions optimize teaching and learning outcomes

Amazon FBA and FBMupwork.com

Amazon FBA consultant offering optimization services for sellers of all sizes Services include product sourcing, listing, SEO, shipping, inventory management, advertising, and more

Merit Data & Technology Indiameritdata-tech.com

A company that provides marketing data, product data, customized software, and marketing automation to help B2B brands embrace the challenges of the future

Faithful+Gouldatkinsrealis.com

Global engineering services and nuclear organization connecting people, data, and technology to transform infrastructure and energy systems worldwide.

Menzies LLPmenzies.co.uk

Leading UK advisory and accountancy firm offering financial, operational, and strategic support to businesses and individuals internationally across various sectors

OC&C Strategy Consultantsoccstrategy.com

International consulting firm specializing in solving complex business challenges with tailored strategies, deep analysis, and a commitment to impactful results.

JLT Groupmarsh.com

Company merged into Mercer, continuing consulting and solutions management services with focus on health, wealth, and career needs.

Trinnovo Group | B Corp™trinnovogroup.com

Community-led recruitment and advisory business focused on high-growth tech-enabled sectors, promoting diversity, inclusion, workplace innovation, and social outreach programs

Facultyfaculty.ai

The company develops and implements safe AI systems integrating human and artificial intelligence for optimized performance

Hymans Robertsonhymans.co.uk

Providing independent pensions, investments, benefits, risk consulting, and technology solutions to employers, trustees, and financial institutions.

The Adaptavist Grouptheadaptavistgroup.com

A software services company specializing in providing solutions for businesses undergoing digital transformation and adaptation using technology and expertise

Macromacro-group.com

Global facilities management company empowering businesses through exceptional services, enhancing workplace experiences, and supporting business strategies and ambitions for over 21 years

Delta Capitadeltacapita.com

Specializes in capital markets consulting, managed services, and technology innovation with global presence and multi-client managed service solutions.

Qinecsa Solutionsqinecsa.com

A global life science partner offering industry-leading pharmacovigilance technology and expert scientific solutions to efficiently manage drug safety data

MHFA England®mhfaengland.org

Providing mental health training and consultancy to workplaces, promoting mental and physical health equality, and reinvesting profits to support young people.

Blackmont Consultingblackmontconsulting.com

Blackmont Consulting offers free advisory services to NGO´s, non-profits, and start-ups, focusing on rigorous analysis to achieve practical results and real impact

Adam Smith Internationaladamsmithinternational.com

Global advisory company working locally to transform lives by strengthening economies, stabilizing societies, and enhancing government effectiveness through innovative programs and strategies

PKF Globalpkf.com

Network of independent firms providing audit, accounting, tax, legal, and business advisory services across 150 countries worldwide.

RED Engineering Designred-eng.com

Specialist building services and ICT engineers providing technical expertise to enable digital infrastructure and achieve zero carbon built environments globally.

NHS Shared Business Servicessbs.nhs.uk

Providing finance, procurement, and workforce services to NHS organizations using data-driven, technology-powered shared solutions for efficiency and resilience.

CRUcrugroup.com

Delivers independent, expert intelligence into the global commodities markets, drawing on data, insights, and strategic thinking to help businesses navigate complexities.

Verian Groupveriangroup.com

Leading agency providing research, evidence, evaluation, and communications services to government and public realm clients to solve public policy challenges.

Newtonnewtonimpact.com

The company partners with clients to tackle major challenges in public and private sectors by identifying and implementing high-impact solutions together

RSSBrssb.co.uk

An independent safety, standards, and research body for Britain's rail network, improving safety, efficiency, and sustainability through collaboration, innovation, and best practices

SYSTRA UK & Irelandsystra.com

A leading engineering and consulting group specializing in infrastructure and mobility solutions, creating, improving, and modernizing infrastructure for over 50 years

Grant Thornton International Ltdgrantthornton.global

Global professional services firm providing assurance, tax, and advisory services with a personal, agile, and proactive approach in over 149 countries

Sabiobit.ly

Global CX transformation specialist using cloud migration, CX technologies, and customer insights to optimize customer journeys for major brands worldwide

Independent Advisory

Global network connecting self-employed professionals, advisors, consultants, executives, and entrepreneurs offering advisory and consultancy services to various industries Join our network today!

Pell Frischmannpellfrischmann.com

Specialist advisory and technical consultancy focused on sustainable solutions in built and natural environments, delivering innovative projects for communities.

HaysMachaysmac.com

Top 30 chartered accountants and tax advisors providing services to businesses, charities, and organizations, with international reach through MSI Global Alliance

JMAN Groupjmangroup.com

Specializes in maximizing value creation activities for private equity funds and their portfolio companies, addressing investment decisions and value creation initiatives with real-time data.

DSPdsp.co.uk

Specializes in secure, optimized database management and consulting for Oracle, SQL Server, and multi-cloud environments including Azure and Oracle Cloud.

FGE NexantECAfgenexanteca.com

provides independent research, analysis, consultation, and advisory services with unique insights and strong relationships in oil and gas markets worldwide

Integrityintegrityglobal.com

Global company providing expert, ethically delivered services in project management, monitoring, research, stakeholder engagement, risk management, and more, focusing on sustainable change

Kantar Consultingkantar.com

Leading marketing data and analytics company providing global and local insights into how people think, feel, and act to help inspire growth

AGEage121.com

A niche consultancy in the medical industry providing expert advice, recruitment services, employer branding, market research, business intelligence, and training

La Fosselafosse.com

Global recruitment services, executive search, and technology leadership placements combined with digital transformation consulting and a tech academy for diverse entry-level talent.

SMGsmg.team

Simplifies retail media landscapes through data-driven campaigns and technology to create personalized shopping experiences and drive growth for major global consumer brands.

Capita Real estate and infrastructurecapitaproperty.co.uk

Announcement of company profile closure due to acquisition by WSP, advising to follow WSP UK for future updates.

The IN Groupwearetig.com

Group of specialized brands providing bespoke recruitment, leadership, digital programs, talent advisory, graduate training, and life sciences recruitment services.

Roboyoroboyo.global

Leading provider of AI-powered automation solutions. Helps organizations embed intelligence into their business, aligning people, processes, and technology for measurable outcomes and growth.

Proximaproximagroup.com

A world-leading procurement and supply chain consultancy specializing in cost optimization, organizational transformation, supply chain sustainability, and decarbonization for large businesses Partnered with Bain & Company

PTS Consultingpts.global

With 38 years' experience, we provide world-class IT consulting, technical project management, and solutions for organizations worldwide

Broadstonebroadstone.co.uk

Specializing in pensions, investments, and employee benefits services for businesses and organizations, offering expert advice on pensions, actuarial services, and scheme administration

Sparta Globallinktr.ee

Partners with organizations to build technology, change, data, and AI capability, providing AI native consultants, upskilling programs, and expert support for AI oversight and transformation.

Infiniti Research Ltd.infinitiresearch.com

Leading provider of market and customer intelligence solutions, offering research and advisory services through unique methods to deliver actionable insights and robust market data.

EDITECeditec.co

A leading provider of management services and technology to Sports Betting, Lottery, and Gaming operators in Africa, offering consultancy, equipment, technology, and software solutions

Delivery Associatesdeliveryassociates.com

The company partners with governments and social impact organizations globally to translate innovative ideas into tangible results through tailored systems, software, and training

Steerus.steergroup.com

Global consultancy specializing in critical services and infrastructure, combining industry experience, technology, and data science for impactful solutions.

Moody's Analytics Knowledge Servicesacuityanalytics.com

Provider of research, analytics, and business intelligence for the financial services sector, helping clients increase revenues, innovate with technology, and transform operations

ALTEN LTD - UKalten.co.uk

Leading global engineering and IT consultancy, supporting clients' development strategies with focus on innovation, R&D in various sectors like aerospace, automotive, and IT.

ODI Globalodi.org

Global think tank inspiring action on injustice and inequality through research, convening, and influencing to generate impactful ideas for people and planet

Kaizen Institute Western Europekaizen.com

Help clients achieve sustainable growth, cutting costs, boosting productivity, enhancing quality, and building long-term capabilities through continuous improvement and Lean Management.

The Smart Cubethesmartcube.com

Providing custom research, advanced analytics, and technology to transform data into actionable insights for improved business performance.

Kin + Cartavaltech.com

A global digital transformation consultancy connecting people, data, and technology to create connected outcomes for clients, focusing on innovation and sustainable growth

Henley & Partners - The Firm of Global Citizens®henleyglobal.com

Global leader in residence and citizenship by investment, creating opportunities for wealthy individuals and investors through expertise and government advisory services worldwide