What are the leading consulting firms in the UK for Telecom services? The top Telecom 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 Telecom, as well as on assessments of Telecom 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 Telecom industry:
Over 500+ consulting firms were assessed for the Telecom ranking in 2025, of which 50 qualify as a top player:
Diamond level
Analysys Mason
Analysys Mason is a global management consulting firm, with a vision to be the leading authority and catalyst for digital change, connectivity and inclusion. We provide bespoke strategy, transaction, transformation, regulation and policy consulting, in combination with...
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Inactive
Deloitte
Deloitte is not a partner of Consultancy UK....
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Inactive
Boston Consulting Group
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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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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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Inactive
Bain & Company
Bain & Company is not a partner of Consultancy UK....
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Inactive
Strategy&
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Inactive
Accenture
Accenture does not have an active company profile on Consultancy.uk....
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Platinum level
Inactive
Arthur D. Little
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Inactive
FTI Consulting
The company profile of FTI Consulting on Consultancy.uk is not active....
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Inactive
KPMG
KPMG is not a partner of Consultancy UK....
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Inactive
EY
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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
Altman Solon
The company profile of Altman Solon on Consultancy.uk is currently not activated....
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Inactive
Baringa
The company profile of Baringa is not activated on Consultancy.uk....
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Inactive
PwC
PwC does not have an active profile on 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
Kearney
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Inactive
Moorhouse
The company profile of Moorhouse on Consultancy.uk is currently not activated....
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Inactive
Cambridge Management Consulting
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Inactive
Gartner
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Inactive
BAE Systems Digital Intelligence
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Inactive
Infosys
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Inactive
Cognizant
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Gold level
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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PMP Strategy
Strategy, development & transformation consulting for executives We are independent and entrepreneurs at heart. Our objective is value creation to achieve sustainable performance for your business. Our dedicated team of men and women work closely together. They share a...
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Roland Berger
Roland Berger Strategy Consultants, founded in 1967, is one of the world's leading strategy consultancies. With around 2,700 employees working in 51 offices in 36 countries worldwide, we have successful operations in all major international markets. Roland Berger Strat...
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Inactive
AlixPartners
The company profile of AlixPartners on Consultancy.uk is currently not activated....
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Alvarez & Marsal
Companies, investors and government entities around the world turn to Alvarez & Marsal (A&M) for leadership, action and results. Privately held since its founding in 1983, A&M is a leading global professional services firm that provides advisory, business performance i...
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Inactive
Vendigital
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Inactive
Kroll
The Company profile of Kroll on Consultancy.uk is currently not activated....
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Inactive
IBM Consulting
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BIP
BIP is the international consultancy for the 21st century with over 5,500 consultants globally daring to make a difference. Operating at the intersection of business and technology BIP design, develop, and deliver sustainable solutions at pace and scale creating greate...
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Inactive
BDO
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Inactive
Atos
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Inactive
NTT Data
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Inactive
Coleago
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Silver level
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
Hitachi Vantara
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Inactive
Cartesian
Cartesian does not have an active company profile on Consultancy.uk....
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Inactive
Detecon
Detecon does not have an active company profile on Consultancy.uk....
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Inactive
Mosaic Island
The Company profile of Mosaic Island on Consultancy.uk is currently not activated....
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Inactive
Deecon Consulting
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Inactive
Plum
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Bronze level
Inactive
Tata Consultancy Services
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Inactive
Penta Consulting
Penta Consulting does not have an active company profile on Consultancy.uk....
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Inactive
Amaris Consulting
Amaris Consulting does not have an active company profile on Consultancy.uk....
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Inactive
Wipro
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Inactive
Thoughtworks
The Company profile of Thoughtworks on Consultancy.uk is currently not activated....
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Inactive
Tech Mahindra
Tech Mahindra does not have an active company profile on Consultancy.uk....
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