Company lists · Data refreshed September 2026

Top 25 Development consulting firms based in the United Kingdom

Name: Development consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 8,121 companies tracked

RevenueBase identified 8,121 company matches for development consulting firms associated with the United Kingdom as of September 2026 and tracks 61,146 professional contacts across them, including 21,652 with verified work emails and 4,284 with mobile numbers. London is the largest hub.

This list covers company matches for development 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 September 24, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 24, 2026 How this list was built

8,121Companies

61,146Contacts tracked

21,652Verified emails

4,284Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest development consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 8,121 company matches for development consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	MACE	Exact match	London, United KingdomHQ recorded Sep 24, 2026	5,001-10,000	8,458 contacts →
	Exact match “Mace Consult launched as a new and independent business on 5 March 2026, through a carve-out from Mace Group.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	Baringa	Exact match	London, United KingdomHQ recorded Sep 24, 2026	1,001-5,000	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 24, 2026 · View company records in RevenueBase
3	Blackmont Consulting	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	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 24, 2026 · View company records in RevenueBase
4	Oc&c Strategy Consultants	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	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 24, 2026 · View company records in RevenueBase
5	Adam Smith International	Exact match	London, United KingdomHQ recorded Sep 24, 2026	n/a	825 contacts →
	Exact match “Adam Smith International is a global advisory company that works locally to transform lives by making economies stronger, societies more stable, and governments more effective.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Pell Frischmann	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	690 contacts →
	Exact match “Pell Frischmann is a specialist advisory and technical consultancy operating across the built and natural environment, helping to shape a better future for the communities in…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	Ricardo PLC	Exact match	London, United KingdomHQ recorded Sep 24, 2026	1,001-5,000	670 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	Pegasus Group	Exact match	Lichfield, United KingdomHQ recorded Sep 24, 2026	201-500	580 contacts →
	Exact match “Since 2003, we’ve been solving planning and development problems for our clients successfully.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	Strategy Insights	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	528 contacts →
	Exact match “Strategy Insights is a specialist business and economic development consultancy.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	STEER	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	524 contacts →
	Exact match “Complex challenges.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	Fichtner Consulting Engineers LTD	Exact match	Stockport, United KingdomHQ recorded Sep 24, 2026	51-200	418 contacts →
	Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Q5	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	344 contacts →
	Exact match “Q5 is a global, award-winning management consultancy focused on building healthy, high-performing organisations.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	Mercer UK	Exact match	London, United KingdomHQ recorded Sep 24, 2026	10001+	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 24, 2026 · View company records in RevenueBase
14	Cumming Group UK & Europe	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	324 contacts →
	Exact match “At Cumming Group, we are passionate about helping our clients execute large-scale, complex projects on-time and within budget.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Elixirr	Exact match	London, United KingdomHQ recorded Sep 24, 2026	501-1,000	275 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 · Sep 24, 2026 · View company records in RevenueBase
16	Moorhouse B Corp Certified	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	247 contacts →
	Exact match “We’re a dynamic consulting firm, focused on delivering change.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	Albany Beck	Exact match	London, United KingdomHQ recorded Sep 24, 2026	201-500	240 contacts →
	Exact match “Albany Beck is a client-first consulting firm helping financial services organisations deliver complex change and build capability, not dependency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	Rapleys	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	222 contacts →
	Exact match “Our business is built around our authentic expertise and the services we offer – building consultancy, commercial, planning and residential.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	Cambridge Education	Exact match	Cambridge, United KingdomHQ recorded Sep 24, 2026	201-500	189 contacts →
	Exact match “Cambridge Education is a global leader in providing consultancy services to government agencies at national and local level, and to international development agencies and…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	True North Partners	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	185 contacts →
	Exact match “True North Partners LLP is an independent consulting firm based in London, Johannesburg, Frankfurt, Amsterdam and Madrid.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	OCO Global	Exact match	Belfast, United KingdomHQ recorded Sep 24, 2026	51-200	167 contacts →
	Exact match “OCO Global shapes strategy and delivers programmes that scale investment, expand exports, attract talent, and strengthen innovation ecosystems.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	TXM Consult	Exact match	Milton Keynes, United KingdomHQ recorded Sep 24, 2026	51-200	166 contacts →
	Exact match “In an uncertain, complex, and ambiguous world, business change is essential and inevitable.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	CVL	Exact match	London, United KingdomHQ recorded Sep 24, 2026	n/a	165 contacts →
	Exact match “Strategic development for already dynamic businesses, successful mergers & acquisitions between household names, technology planning in cutting edge industries and real-world…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	Integrity	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	158 contacts →
	Exact match “Integrity sets the international standard for ethically delivered, expert services.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
25	QUOD	Exact match	London, United KingdomHQ recorded Sep 24, 2026	51-200	154 contacts →
	Exact match “Quod is a specialist, independent consultancy at the cutting edge of planning and development economics.” Recorded in the RevenueBase company graph · Sep 24, 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 “development 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 8,121 development consulting firms based in the United Kingdom

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Development consulting firms based in the United Kingdom at a glance

As of Sep 24, 2026

35.4%Verified-email coverage

7.0%Mobile-number coverage

7.5Average contacts per company

1-10Median size (employees)

37.4%Largest-city concentration · London

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

6,703

11-50

1,055

51-200

231

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

19,1750–30

5,60331–60

33661–90

3190–180

82180+

Company record updated

Median 76.0d

00–30

8,68231–60

33,05261–90

22,32290–180

4,207180+

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 “development 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 21,652 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 24, 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.

Development 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 “development consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many development consulting firms are there based in the United Kingdom?

RevenueBase identified 8,121 company matches for development consulting firms associated with the 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?

MACE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most development consulting firms?

London leads with 3035 company records, followed by Manchester (187) and Birmingham (98).

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 21,652 professional contacts with verified work emails tracked across these 8,121 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 24, 2026.

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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.