Company lists · Data refreshed September 2026

Top 24 Impact measurement consulting firms based in the United Kingdom

Name: Impact measurement 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 3, 2026 629 companies tracked

RevenueBase identified 629 company matches for impact measurement consulting firms associated with the United Kingdom as of September 2026 and tracks 3,473 professional contacts across them, including 1,271 with verified work emails and 290 with mobile numbers. London is the largest hub.

This list covers company matches for impact measurement 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 3, 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 3, 2026 How this list was built

629Companies

3,473Contacts tracked

1,271Verified emails

290Mobile numbers

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The 24 largest impact measurement consulting firms based in the United Kingdom

Ranked by team size

Top 24 of 629 company matches for impact measurement consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 3, 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	The Smarty Train	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	84 contacts →
	Exact match “From employability and strategy formulation through to training programme design and delivery, we have been the engine behind award-winning and high-impact workplace initiatives…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2	180 Degrees Consulting Bath	Exact match	Bath, United KingdomHQ recorded Sep 3, 2026	51-200	71 contacts →
	Exact match “180 Degrees Consulting is the world's largest consultancy for non-profits and social enterprises.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3	Montrose	Exact match	Jersey, United KingdomHQ recorded Sep 3, 2026	51-200	70 contacts →
	Exact match “Montrose is an international development consultancy and project management company providing services to bilateral and multi-lateral development agencies, non-governmental…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4	Eastside People	Exact match	London, United KingdomHQ recorded Sep 3, 2026	51-200	59 contacts →
	Exact match “Eastside People is a community of experienced professionals focused on helping charity, not-for-profit and social enterprise leaders to build the capacity and impact of their…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5	IOD Parc	Exact match	Sheffield, United KingdomHQ recorded Sep 3, 2026	11-50	56 contacts →
	Exact match “Incorporated in 1998 in the United Kingdom, IOD PARC is a private consulting company and a leading, global specialist-provider in results-based performance assessment in…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6	BRINK	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	55 contacts →
	Exact match “Brink is a behavioral science and innovation consultancy focused on social impact and international development across Africa and globally.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7	TH NK	Exact match	London, United KingdomHQ recorded Sep 3, 2026	n/a	42 contacts →
	Exact match “You can now find us over at EPAM Continuum.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8	GC Insight	Exact match	Manchester, United KingdomHQ recorded Sep 3, 2026	11-50	40 contacts →
	Exact match “PURPOSE-DRIVEN RESEARCH & ADVICE SERVICES We are a social enterprise, committed to generating social value impacts and helping our clients have a more positive impact on place…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9	Brodie	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	39 contacts →
	Exact match “We are here to drive three significant changes: CHANGE CORPORATE IMPACT: help business to reframe and re-orient its role in society CHANGE CONSUMPTION: help brands re-wire for the…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10	Substance	Exact match	Manchester, United KingdomHQ recorded Sep 3, 2026	11-50	34 contacts →
	Exact match “Founded in Manchester, 2005.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11	Renaisi	Exact match	Of, United KingdomHQ recorded Sep 3, 2026	11-50	32 contacts →
	Exact match “We are Renaisi, a social impact consultancy helping people and places to thrive.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12	The Good Economy Partnership Limited	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	31 contacts →
	Exact match “From consultancy to collaborative field-building, The Good Economy (TGE) is a recognised thought leader and the ‘go to’ firm for organisations looking to deliver and report on…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13	180 Degrees Consulting Imperial	Exact match	South Kensington, United KingdomHQ recorded Sep 3, 2026	11-50	31 contacts →
	Exact match “With more than students all over the world and branches at over 100 leading universities, 180 Degrees Consulting is the world’s largest university-based consultancy and the…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14	Kaleidoscope Health And Care	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	30 contacts →
	Exact match “Kaleidoscope is an award-winning social enterprise consultancy.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15	Mh&a	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	29 contacts →
	Exact match “MH & A was founded in 2018 by Professor Matt Hamnett, who has worked at senior levels in central Government, corporate and social sector organisations.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16	Innovation Consulting & Solutions	Exact match	Birmingham, United KingdomHQ recorded Sep 3, 2026	11-50	27 contacts →
	Exact match “ICS is a leading international development consultancy providing humanitarian leadership and analytics capacities combined with technology-driven solutions for the humanitarian…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17	Positive Luxury	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	25 contacts →
	Exact match “Positive Luxury are the leading sustainability experts for the global luxury industry, offering all of the industry’s sustainability needs under one roof.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18	Centre For Strategy & Evaluation Services Cses	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	25 contacts →
	Exact match “The Centre for Strategy & Evaluation Services (CSES) was established in CSES offers multi-disciplinary research and consultancy services and specialises in the following: •…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19	MIME	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	23 contacts →
	Exact match “Mime is expert at turning data into useful and engaging insights.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20	Good Innovation	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	22 contacts →
	Exact match “We help charities transform their income and services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21	Trust Impact	Exact match	London, United KingdomHQ recorded Sep 3, 2026	11-50	22 contacts →
	Exact match “It’s never been more important for organisations to explore, align, amplify and communicate the positive impact you’re having.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
22	Chord Consult	Exact match	Nottingham, United KingdomHQ recorded Sep 3, 2026	1-10	22 contacts →
	Exact match “Chord Consult is an M&E consultancy founded in June 2022.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
23	C21	Exact match	Altrincham, United KingdomHQ recorded Sep 3, 2026	11-50	20 contacts →
	Exact match “Our purpose is to create change for good.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
24	Greenheart	Exact match	Uk-wide, United KingdomHQ recorded Sep 3, 2026	11-50	20 contacts →
	Exact match “Sustainability is not enough!” Recorded in the RevenueBase company graph · Sep 3, 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 “impact measurement 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 629 impact measurement consulting firms based in the United Kingdom

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Impact measurement consulting firms based in the United Kingdom at a glance

As of Sep 3, 2026

36.6%Verified-email coverage

8.4%Mobile-number coverage

5.5Average contacts per company

1-10Median size (employees)

48.5%Largest-city concentration · London

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

513

11-50

51-200

201-500

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

9731–60

72161–90

44890–180

5180+

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 “impact measurement 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 1,271 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 3, 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.

Impact measurement consulting firms by metro

Impact measurement consulting firms in London305

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

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

RevenueBase identified 629 company matches for impact measurement 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?

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

Which city has the most impact measurement consulting firms?

London leads with 305 company records, followed by Bristol (15) and Manchester (14).

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 1,271 professional contacts with verified work emails tracked across these 629 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 3, 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.