Company lists · Data refreshed August 2026
Top 25 Consulting firms based in the United Kingdom
RevenueBase identified 16,262 company matches for consulting firms associated with the United Kingdom as of August 2026 and tracks 124,527 professional contacts across them, including 40,018 with verified work emails and 13,633 with mobile numbers. London is the largest hub.
This list covers company matches for consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed August 31, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest consulting firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,874 contacts → | ||||
Exact match “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 2 | 1,561 contacts → | ||||
Exact match “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 3 | 1,549 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 4 | 1,352 contacts → | ||||
Exact match “We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 5 | 1,022 contacts → | ||||
Exact match “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 6 | 976 contacts → | ||||
Exact match “A Visagio Group company.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 7 | 710 contacts → | ||||
Exact match “We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 8 | 615 contacts → | ||||
Exact match “Somos uma consultoria internacional fundada na Itália em 2003 com um ecossistema em evolução que proporciona a transformação significativa nos grandes players do mercado devido à…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 9 | 516 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 10 | 452 contacts → | ||||
Exact match “Leader Investment Group is a MNC & a worldwide pioneer in Management Consultation, Executive Consultation, Digital Transformation & IT.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 11 | 444 contacts → | ||||
Exact match “Established in 1992, ERA Group (ERA) is one of the world’s leading consultancy organizations.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 12 | 340 contacts → | ||||
Exact match “Q5 is a global, award-winning consultancy specialising in 'organisational health' and performance.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 13 | 334 contacts → | ||||
Exact match “At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 14 | 287 contacts → | ||||
Exact match “Welcome to H&Z We offer more than successful strategy development.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 15 | 275 contacts → | ||||
Exact match “Seargin was founded to close the gap between traditional advisory and hands-on delivery - combining strategic insight with deep expertise in ERP, AI and data.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 16 | 271 contacts → | ||||
Exact match “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 17 | 264 contacts → | ||||
Exact match “Award-winning Customer Experience and Employee Experience consultancy with offices in London and New York.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 18 | 253 contacts → | ||||
Exact match “Della is a IT consulting and staffing firm focused on both IT and non IT needs of our customers.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 19 | 215 contacts → | ||||
Exact match “Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 20 | 182 contacts → | ||||
Exact match “Eidra is a consultancy collective combining consulting, creativity, engineering and data to help leaders create great change.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 21 | 96 contacts → | ||||
Exact match “K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 22 | 92 contacts → | ||||
Exact match “Baker Tilly is a leading professional services firm which provides a range of accounting and advisory services to a broad spectrum of clients, from public companies to…” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 23 | 80 contacts → | ||||
Exact match “Driver Trett, part of the Driver Group, provides multi-disciplinary consultancy services to support effective delivery of our client’s projects.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 24 | 57 contacts → | ||||
Exact match “Milliman is among the world’s largest independent actuarial and consulting firms.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
| 25 | 55 contacts → | ||||
Exact match “We are a global executive search, interim management, talent assessment and leadership development firm.” Recorded in the RevenueBase company graph · Aug 31, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 16,262 consulting firms based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 40,018 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Consulting firms based in the United Kingdom at a glance
As of Aug 31, 2026Companies by employee count
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 40,018 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on August 31, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Consulting firms by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many consulting firms are there based in the United Kingdom?
RevenueBase identified 16,262 company matches for consulting firms associated with the United Kingdom as of August 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Gspann Technologies, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most consulting firms?
London leads with 6692 company records, followed by Manchester (362) and Birmingham (213).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 40,018 professional contacts with verified work emails tracked across these 16,262 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.
Ready to reach these companies? Verified emails and direct dials for all 16,262 consulting firms based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Consulting firms by geography
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- Consulting firms based in Brazil
- Consulting firms based in France
- Consulting firms based in Germany
- Consulting firms based in Canada
- Consulting firms based in Italy
- Consulting firms based in Spain
- Consulting firms based in Australia
- Consulting firms based in the Netherlands
- Consulting firms based in Mexico
- Consulting firms based in Switzerland
- Consulting firms based in Argentina
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 consulting firms based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 16,262 matching company records for consulting firms based in the United Kingdom, with 124,527 tracked contacts and 40,018 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: August 31, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Gspann Technologies, INCgspann.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,874 contacts → |
“GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Exponentexponent.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,561 contacts → |
“In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,549 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 |  Barnett Waddinghambarnett-waddingham.co.ukHQ: HQ not recorded; location: Guildford, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Guildford, United Kingdom | 1,001-5,000 | Exact match | 1,352 contacts → |
“We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  First Derivativefirstderivative.comHQ: HQ not recorded; location: Newry, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Newry, United Kingdom | 1,001-5,000 | Exact match | 1,022 contacts → |
“First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Visagiovisagio.comHQ: HQ not recorded; location: Reading, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Reading, United Kingdom | 501-1,000 | Exact match | 976 contacts → |
“A Visagio Group company.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  PKF Littlejohnpkf-l.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 710 contacts → |
“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  BIP Brasilbipbrasil.com.brHQ: HQ not recorded; location: Londres, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Londres, United Kingdom | 1,001-5,000 | Exact match | 615 contacts → |
“Somos uma consultoria internacional fundada na Itália em 2003 com um ecossistema em evolução que proporciona a transformação significativa nos grandes players do mercado devido à…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Mazars In The UKmazars.co.ukHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 516 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Leader Investment Group - LIGleadergroup.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 452 contacts → |
“Leader Investment Group is a MNC & a worldwide pioneer in Management Consultation, Executive Consultation, Digital Transformation & IT.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  ERA Group - Emeaeragroup.comHQ: HQ not recorded; location: Kings Hill West Malling, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Kings Hill West Malling, United Kingdom | 501-1,000 | Exact match | 444 contacts → |
“Established in 1992, ERA Group (ERA) is one of the world’s leading consultancy organizations.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Q5q5partners.comHQ: HQ not recorded; location: Leeds, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Leeds, United Kingdom | 501-1,000 | Exact match | 340 contacts → |
“Q5 is a global, award-winning consultancy specialising in 'organisational health' and performance.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Mercer UKmercer.comHQ: HQ not recorded; location: London, United KingdomReported employees: 10001+ | HQ not recorded; location: London, United Kingdom | 10001+ | Exact match | 334 contacts → |
“At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  H&z Management Consultinghz.groupHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 287 contacts → |
“Welcome to H&Z We offer more than successful strategy development.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Searginseargin.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 275 contacts → |
“Seargin was founded to close the gap between traditional advisory and hands-on delivery - combining strategic insight with deep expertise in ERP, AI and data.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Elixirrelixirr.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 271 contacts → |
“An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ethos Farmethosfarm.comHQ: HQ not recorded; location: New York, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: New York, United Kingdom | 1,001-5,000 | Exact match | 264 contacts → |
“Award-winning Customer Experience and Employee Experience consultancy with offices in London and New York.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  V R Della Infotech Inc- V R Della Groupvrdella.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 253 contacts → |
“Della is a IT consulting and staffing firm focused on both IT and non IT needs of our customers.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  The Erith Grouperith.comHQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 215 contacts → |
“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  EIDRAeidra.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 182 contacts → |
“Eidra is a consultancy collective combining consulting, creativity, engineering and data to help leaders create great change.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | K3 Capital Groupk3capitalgroup.com HQ: HQ not recorded; location: Manchester, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Manchester, United Kingdom | 501-1,000 | Exact match | 96 contacts → |
“K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Baker Tilly Business Services Limitedbakertilly.co.uk HQ: HQ not recorded; location: Marlow Bucks, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Marlow Bucks, United Kingdom | 1,001-5,000 | Exact match | 92 contacts → |
“Baker Tilly is a leading professional services firm which provides a range of accounting and advisory services to a broad spectrum of clients, from public companies to…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Driver Trettdrivertrett.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 80 contacts → |
“Driver Trett, part of the Driver Group, provides multi-disciplinary consultancy services to support effective delivery of our client’s projects.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Milliman UKmilliman.comHQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 57 contacts → |
“Milliman is among the world’s largest independent actuarial and consulting firms.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Odgers Berndtsonodgersberndtson.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 55 contacts → |
“We are a global executive search, interim management, talent assessment and leadership development firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 16,262 company matches
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Consulting firms: dataset insights
August 31, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
15,970 records in the displayed employee bands.
292 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: August 31, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Consulting firms by metro
Questions about this company list
What does Exact match mean for consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 16,262 matching company records, 124,527 tracked contacts and 40,018 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: August 31, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Consulting firms by geography
- Consulting firms based in the United States
- Consulting firms based in Brazil
- Consulting firms based in France
- Consulting firms based in Germany
- Consulting firms based in Canada
- Consulting firms based in Italy
- Consulting firms based in Spain
- Consulting firms based in Australia
- Consulting firms based in the Netherlands
- Consulting firms based in Mexico
- Consulting firms based in Switzerland
- Consulting firms based in Argentina
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 consulting firms based in the United Kingdom. Snapshot: August 31, 2026. https://revenuebase.ai/companies/consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 consulting firms based in the United Kingdom
RevenueBase records 16,262 matching company records for consulting firms based in the United Kingdom, with 124,527 tracked contacts and 40,018 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: August 31, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 consulting firms based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Gspann Technologies, INCgspann.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,874 contacts → |
“GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Exponentexponent.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,561 contacts → |
“In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 1,549 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 4 | Barnett Waddinghambarnett-waddingham.co.uk HQ: HQ not recorded; location: Guildford, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Guildford, United Kingdom | 1,001-5,000 | Exact match | 1,352 contacts → |
“We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | First Derivativefirstderivative.com HQ: HQ not recorded; location: Newry, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Newry, United Kingdom | 1,001-5,000 | Exact match | 1,022 contacts → |
“First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Visagiovisagio.com HQ: HQ not recorded; location: Reading, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Reading, United Kingdom | 501-1,000 | Exact match | 976 contacts → |
“A Visagio Group company.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | PKF Littlejohnpkf-l.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 710 contacts → |
“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | BIP Brasilbipbrasil.com.br HQ: HQ not recorded; location: Londres, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Londres, United Kingdom | 1,001-5,000 | Exact match | 615 contacts → |
“Somos uma consultoria internacional fundada na Itália em 2003 com um ecossistema em evolução que proporciona a transformação significativa nos grandes players do mercado devido à…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Mazars In The UKmazars.co.uk HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 516 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Leader Investment Group - LIGleadergroup.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 452 contacts → |
“Leader Investment Group is a MNC & a worldwide pioneer in Management Consultation, Executive Consultation, Digital Transformation & IT.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | ERA Group - Emeaeragroup.com HQ: HQ not recorded; location: Kings Hill West Malling, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Kings Hill West Malling, United Kingdom | 501-1,000 | Exact match | 444 contacts → |
“Established in 1992, ERA Group (ERA) is one of the world’s leading consultancy organizations.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Q5q5partners.com HQ: HQ not recorded; location: Leeds, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Leeds, United Kingdom | 501-1,000 | Exact match | 340 contacts → |
“Q5 is a global, award-winning consultancy specialising in 'organisational health' and performance.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mercer UKmercer.com HQ: HQ not recorded; location: London, United KingdomReported employees: 10001+ | HQ not recorded; location: London, United Kingdom | 10001+ | Exact match | 334 contacts → |
“At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | H&z Management Consultinghz.group HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 287 contacts → |
“Welcome to H&Z We offer more than successful strategy development.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Searginseargin.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 275 contacts → |
“Seargin was founded to close the gap between traditional advisory and hands-on delivery - combining strategic insight with deep expertise in ERP, AI and data.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Elixirrelixirr.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 271 contacts → |
“An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ethos Farmethosfarm.com HQ: HQ not recorded; location: New York, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: New York, United Kingdom | 1,001-5,000 | Exact match | 264 contacts → |
“Award-winning Customer Experience and Employee Experience consultancy with offices in London and New York.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | V R Della Infotech Inc- V R Della Groupvrdella.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 253 contacts → |
“Della is a IT consulting and staffing firm focused on both IT and non IT needs of our customers.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Erith Grouperith.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 215 contacts → |
“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | EIDRAeidra.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 182 contacts → |
“Eidra is a consultancy collective combining consulting, creativity, engineering and data to help leaders create great change.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | K3 Capital Groupk3capitalgroup.com HQ: HQ not recorded; location: Manchester, United KingdomReported employees: 501-1,000 | HQ not recorded; location: Manchester, United Kingdom | 501-1,000 | Exact match | 96 contacts → |
“K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Baker Tilly Business Services Limitedbakertilly.co.uk HQ: HQ not recorded; location: Marlow Bucks, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: Marlow Bucks, United Kingdom | 1,001-5,000 | Exact match | 92 contacts → |
“Baker Tilly is a leading professional services firm which provides a range of accounting and advisory services to a broad spectrum of clients, from public companies to…” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Driver Trettdrivertrett.com HQ: HQ not recorded; location: London, United KingdomReported employees: 501-1,000 | HQ not recorded; location: London, United Kingdom | 501-1,000 | Exact match | 80 contacts → |
“Driver Trett, part of the Driver Group, provides multi-disciplinary consultancy services to support effective delivery of our client’s projects.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Milliman UKmilliman.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 57 contacts → |
“Milliman is among the world’s largest independent actuarial and consulting firms.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Odgers Berndtsonodgersberndtson.com HQ: HQ not recorded; location: London, United KingdomReported employees: 1,001-5,000 | HQ not recorded; location: London, United Kingdom | 1,001-5,000 | Exact match | 55 contacts → |
“We are a global executive search, interim management, talent assessment and leadership development firm.” Recorded description excerpt · August 31, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 16,262 company matches
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Consulting firms: dataset insights
August 31, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
15,970 records in the displayed employee bands.
292 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: August 31, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Consulting firms by metro
Questions about this company list
What does Exact match mean for consulting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many consulting firms did RevenueBase find based in the United Kingdom?
The saved snapshot records 16,262 matching company records, 124,527 tracked contacts and 40,018 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: August 31, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 consulting firms based in the United Kingdom. Snapshot: August 31, 2026. https://revenuebase.ai/companies/consulting-firms/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗