What are the leading consulting firms in the UK for Online services? The top Online consulting firms in the UK ranking presents the region’s most trusted, expert and influential consultancy firms in the sector for the year 2025.
The ranking of consulting firms is based on the views of executives and consultants active in Online, as well as on assessments of Online capabilities, company reputation, analyst benchmarks, industry recognitions, thought leadership and more (see the methodology for details).
View all rankings: Top consulting firms in the UK 2025.
UK’s top consulting firms in the Online industry:
Over 500+ consulting firms were assessed for the Online ranking in 2025, of which 37 qualify as a top player:
Diamond level
Inactive
Accenture
Accenture does not have an active company profile on Consultancy.uk....
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Inactive
Deloitte
Deloitte is not a partner of Consultancy UK....
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Inactive
Boston Consulting Group
The company profile of Boston Consulting Group on Consultancy.uk is currently not activated....
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Capgemini Invent
Capgemini Invent is Capgemini Group’s innovation, design, and transformation powerhouse, accelerating ideas into prototypes and scalable real-world solutions that help our clients get the future they want. Disruption is everywhere, intensifying the need for businesses ...
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Inactive
EY
The company profile of EY on Consultancy.uk is currently not activated....
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Inactive
Bain & Company
Bain & Company is not a partner of Consultancy UK....
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Platinum level
McKinsey & Company
McKinsey & Company is a global management consulting firm. We are the trusted advisor to the world's leading businesses, governments, and institutions. We strive for world-shaping client impact We work with leading organizations across the private, public and social se...
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Publicis Sapient
Publicis Sapient is a digital business transformation company. We partner with global organizations to help them create and sustain competitive advantage in a world that is increasingly digital. We operate through our expert SPEED capabilities: Strategy and Consulting,...
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Inactive
PwC
PwC does not have an active profile on Consultancy.uk....
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KPMG
KPMG is not a partner of Consultancy UK....
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Oliver Wyman
Oliver Wyman is a global leader in management consulting. With offices in over 70 cities across 30 countries, we combine deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation. Our more than 7,000 pr...
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Inactive
Strategy&
The company profile of Strategy& on Consultancy.uk is currently not activated....
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Simon-Kucher
Simon-Kucher is a global consultancy focused on unlocking commercial growth for businesses. For 40 years, this mission has guided everything we do. We help companies achieve sustainable, profitable growth that elevates brands, satisfies stakeholders—from shareholders t...
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Inactive
IBM Consulting
The company profile of IBM on Consultancy.uk is currently not activated....
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Inactive
R/GA
The company profile of R/GA on Consultancy.uk is currently not activated....
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Inactive
Sia
The Company profile of Sia Partners on Consultancy.uk is currently not activated....
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Inactive
Credera
The Company profile of Credera on Consultancy.uk is currently not activated....
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Inactive
Merkle
Merkle does not have an active company profile on Consultancy.uk....
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Gold level
BearingPoint
BearingPoint is an independent management and technology consultancy with European roots and a global reach. The company operates in three business units: Consulting, Products, and Capital. Consulting covers the advisory business with a clear focus on selected business...
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Inactive
Kearney
The company profile of Kearney on Consultancy.uk is currently not activated....
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Ogilvy Consulting
Ogilvy Consulting is the strategy, innovation, and business insights arm of Ogilvy. An enterprise-wide offer, we provide strategic expertise across Brand Innovation, Business Transformation, Sustainability, Behavioural Science, B2B and AI Advisory. We are a global netw...
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Inactive
VML
VML does not have an active company profile on Consultancy.uk....
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L.E.K. Consulting
We’re L.E.K. Consulting, a global strategy consultancy working with business leaders to seize competitive advantage and amplify growth. Our insights are catalysts that reshape the trajectory of our clients’ businesses, uncovering opportunities and empowering them to ma...
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PA Consulting
We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our diverse teams of experts combine innovative thinking and breakthrough technologies to progress further...
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Inactive
Cognizant
The company profile of Cognizant on Consultancy.uk is currently not activated....
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Inactive
Kantar
Kantar does not have an active company profile on Consultancy.uk....
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Silver level
Inactive
Artefact
Artefact does not have an active company profile on Consultancy.uk....
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CGI
Founded in 1976, CGI is among the largest independent IT and business consulting services firms in the world. With 90,000 consultants and professionals across the globe, CGI delivers an end-to-end portfolio of capabilities, from business consulting and strategic IT to ...
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Inactive
AlixPartners
The company profile of AlixPartners on Consultancy.uk is currently not activated....
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Inactive
Manifesto Growth Architects
The Company profile of Manifesto Growth Architects on Consultancy.uk is currently not activated....
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Inactive
Answer Digital
The company profile of Answer Digital on Consultancy.uk is currently not activated....
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Inactive
G & Co
G & Co does not have an active company profile on Consultancy.uk....
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Bronze level
Inactive
Tata Consultancy Services
The company profile of Tata Consulting Service on Consultancy.uk is currently not activated....
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Inactive
Grant Thornton
The Company profile of Grant Thornton on Consultancy.uk is currently not activated....
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Inactive
Vervaunt
Vervaunt does not have an active company profile on Consultancy.uk....
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Inactive
Thoughtworks
The Company profile of Thoughtworks on Consultancy.uk is currently not activated....
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Inactive
Wipro
The company profile of Wipro on Consultancy.uk is currently not activated....
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