Company lists · Data refreshed September 2026
Top 24 Consulting firms based in London, United Kingdom
RevenueBase identified 6,777 company matches for consulting firms associated with London, United Kingdom as of September 2026 and tracks 102,822 professional contacts across them, including 41,209 with verified work emails and 9,198 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for consulting firms associated with London, 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 September 8, 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 24 largest consulting firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17,070 contacts → | ||||
Exact match “Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 2 | 5,009 contacts → | ||||
Exact match “Acuity Knowledge Partners (Acuity) is a leading provider of bespoke research, analytics and technology solutions to the financial services sector, including asset managers…” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 3 | 2,179 contacts → | ||||
Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 4 | 1,979 contacts → | ||||
Exact match “Antal International is a global executive search organisation with over 130 offices in more than 30 countries.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 5 | 1,927 contacts → | ||||
Exact match “Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 6 | 1,331 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 · Sep 8, 2026 · View company records in RevenueBase | |||||
| 7 | 1,304 contacts → | ||||
Exact match “Efficio is a global leader in procurement and supply chain management and transformation.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 8 | 1,221 contacts → | ||||
Exact match “Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 9 | 1,011 contacts → | ||||
Exact match “At OC & C Strategy Consultants we have more than 35 years of experience at unpicking the most complex business challenges with simple, uncommon sense™.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 10 | 976 contacts → | ||||
Exact match “Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 11 | 702 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 · Sep 8, 2026 · View company records in RevenueBase | |||||
| 12 | 528 contacts → | ||||
Exact match “Strategy Insights is a specialist business and economic development consultancy.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 13 | 505 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 14 | 477 contacts → | ||||
Exact match “We help companies with their biggest challenges – market strategies, regulatory reviews, competition inquiries.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 15 | 459 contacts → | ||||
Exact match “Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 16 | 450 contacts → | ||||
Exact match “TRANSEARCH International is a global executive search and leadership consulting organisation.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 17 | 425 contacts → | ||||
Exact match “The GRS Group is an international executive search consultancy whose services include retained search, contingency search, advertised selection and interim solutions.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 18 | 377 contacts → | ||||
Exact match “Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 19 | 360 contacts → | ||||
Exact match “Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 20 | 353 contacts → | ||||
Exact match “Kovaion is a global AI-powered solutions and innovation company focused on Oracle technologies, enterprise applications, intelligent automation, and digital transformation.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 21 | 351 contacts → | ||||
Exact match “Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 22 | 335 contacts → | ||||
Exact match “PSD is a leading international executive recruitment consultancy, specialising in executive, management and board level recruitment with over 35 years of experience.” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 23 | 333 contacts → | ||||
Exact match “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase | |||||
| 24 | 329 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 · Sep 8, 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 24 of 6,777 consulting firms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 41,209 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Consulting firms based in London, United Kingdom at a glance
As of Sep 8, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 11.0dCompany record updated
Median 59.0dHow 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 London, 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 41,209 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 September 8, 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 in the United Kingdom
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 London, United Kingdom?
RevenueBase identified 6,777 company matches for consulting firms associated with London, United Kingdom as of September 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?
Ey-Parthenon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United Kingdom has the most consulting firms?
London leads the United Kingdom with 6,692 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 41,209 professional contacts with verified work emails tracked across these 6,777 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 September 8, 2026.
Ready to reach these companies? Verified emails and direct dials for all 6,777 consulting firms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
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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 24 consulting firms based in London, 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 6,777 matching company records for consulting firms based in London, United Kingdom, with 102,822 tracked contacts and 41,209 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 8, 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 24 consulting firms based in London, 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 |  Ey-Parthenoney.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 17,070 contacts → |
“Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Acuity Knowledge Partnersacuitykp.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,009 contacts → |
“Acuity Knowledge Partners (Acuity) is a leading provider of bespoke research, analytics and technology solutions to the financial services sector, including asset managers…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Baringabaringa.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,179 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Antal Internationalantal.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,979 contacts → |
“Antal International is a global executive search organisation with over 130 offices in more than 30 countries.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Avance Consultingavanceservices.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 1,927 contacts → |
“Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Barnett Waddinghambarnett-waddingham.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,331 contacts → |
“We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Efficioefficioconsulting.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,304 contacts → |
“Efficio is a global leader in procurement and supply chain management and transformation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Blackmont Consultingblackmontconsulting.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 1,221 contacts → |
“Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Oc&c Strategy Consultantsoccstrategy.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 1,011 contacts → |
“At OC & C Strategy Consultants we have more than 35 years of experience at unpicking the most complex business challenges with simple, uncommon sense™.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Delta Capitadeltacapita.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 976 contacts → |
“Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  PKF Littlejohnpkf-l.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 702 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 · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Strategy Insightsstrategyinsights.bizHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 528 contacts → |
“Strategy Insights is a specialist business and economic development consultancy.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Mazars In The UKmazars.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 505 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Frontier Economicsfrontier-economics.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 477 contacts → |
“We help companies with their biggest challenges – market strategies, regulatory reviews, competition inquiries.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Analysys Masonanalysysmason.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 459 contacts → |
“Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Transearchtransearch.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 450 contacts → |
“TRANSEARCH International is a global executive search and leadership consulting organisation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  GRSgrs.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 425 contacts → |
“The GRS Group is an international executive search consultancy whose services include retained search, contingency search, advertised selection and interim solutions.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hirexa Solutionshirexa.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 377 contacts → |
“Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Softwiresoftwire.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 360 contacts → |
“Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Kovaion Consultingkovaion.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 353 contacts → |
“Kovaion is a global AI-powered solutions and innovation company focused on Oracle technologies, enterprise applications, intelligent automation, and digital transformation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Emergnemergn.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 351 contacts → |
“Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  PSD Grouppsdgroup.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 335 contacts → |
“PSD is a leading international executive recruitment consultancy, specialising in executive, management and board level recruitment with over 35 years of experience.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ubique Systemsubique-systems.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 333 contacts → |
“Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mercer UKmercer.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 329 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 · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 6,777 company matches
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Consulting firms: dataset insights
September 8, 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
6,764 records in the displayed employee bands.
13 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 11.0dCompany record updated
Median 59.0dHow 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: September 8, 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 in the United Kingdom
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 London, United Kingdom?
The saved snapshot records 6,777 matching company records, 102,822 tracked contacts and 41,209 verified emails. The public preview displays 24 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: September 8, 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 the United Kingdom
- 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
Cite this list
RevenueBase Data Team. Top 24 consulting firms based in London, United Kingdom. Snapshot: September 8, 2026. https://revenuebase.ai/companies/consulting-firms/united-kingdom/london.
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 24 consulting firms based in London, United Kingdom
RevenueBase records 6,777 matching company records for consulting firms based in London, United Kingdom, with 102,822 tracked contacts and 41,209 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 8, 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 24 consulting firms based in London, 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 | Ey-Parthenoney.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 17,070 contacts → |
“Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Acuity Knowledge Partnersacuitykp.com HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,009 contacts → |
“Acuity Knowledge Partners (Acuity) is a leading provider of bespoke research, analytics and technology solutions to the financial services sector, including asset managers…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Baringabaringa.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,179 contacts → |
“Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Antal Internationalantal.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,979 contacts → |
“Antal International is a global executive search organisation with over 130 offices in more than 30 countries.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Avance Consultingavanceservices.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 1,927 contacts → |
“Avance Consulting is a global organization focused on delivering innovative talent solution services to some of the most renowned companies in the world, across industries that…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Barnett Waddinghambarnett-waddingham.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,331 contacts → |
“We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Efficioefficioconsulting.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,304 contacts → |
“Efficio is a global leader in procurement and supply chain management and transformation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Blackmont Consultingblackmontconsulting.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 1,221 contacts → |
“Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Oc&c Strategy Consultantsoccstrategy.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 1,011 contacts → |
“At OC & C Strategy Consultants we have more than 35 years of experience at unpicking the most complex business challenges with simple, uncommon sense™.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Delta Capitadeltacapita.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 976 contacts → |
“Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | PKF Littlejohnpkf-l.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 702 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 · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Strategy Insightsstrategyinsights.biz HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 528 contacts → |
“Strategy Insights is a specialist business and economic development consultancy.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mazars In The UKmazars.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 505 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Frontier Economicsfrontier-economics.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 477 contacts → |
“We help companies with their biggest challenges – market strategies, regulatory reviews, competition inquiries.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Analysys Masonanalysysmason.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 459 contacts → |
“Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Transearchtransearch.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 450 contacts → |
“TRANSEARCH International is a global executive search and leadership consulting organisation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | GRSgrs.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 425 contacts → |
“The GRS Group is an international executive search consultancy whose services include retained search, contingency search, advertised selection and interim solutions.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hirexa Solutionshirexa.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 377 contacts → |
“Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Softwiresoftwire.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 360 contacts → |
“Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kovaion Consultingkovaion.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 353 contacts → |
“Kovaion is a global AI-powered solutions and innovation company focused on Oracle technologies, enterprise applications, intelligent automation, and digital transformation.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Emergnemergn.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 351 contacts → |
“Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | PSD Grouppsdgroup.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 335 contacts → |
“PSD is a leading international executive recruitment consultancy, specialising in executive, management and board level recruitment with over 35 years of experience.” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ubique Systemsubique-systems.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 333 contacts → |
“Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Recorded description excerpt · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mercer UKmercer.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 329 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 · September 8, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Consulting firms: dataset insights
September 8, 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
6,764 records in the displayed employee bands.
13 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 11.0dCompany record updated
Median 59.0dHow 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: September 8, 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 in the United Kingdom
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 London, United Kingdom?
The saved snapshot records 6,777 matching company records, 102,822 tracked contacts and 41,209 verified emails. The public preview displays 24 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: September 8, 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 24 consulting firms based in London, United Kingdom. Snapshot: September 8, 2026. https://revenuebase.ai/companies/consulting-firms/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗