Company lists · Data refreshed September 2026

Top 25 Pro bono consulting firms based in the United Kingdom

Name: Pro bono 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 5, 2026 166 companies tracked

RevenueBase identified 166 pro bono consulting firms headquartered in the United Kingdom as of September 2026 and tracks 2,630 professional contacts across them, including 191 with verified work emails and 77 with mobile numbers. London is the largest hub.

This list covers pro bono consulting firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

166Companies

2,630Contacts tracked

191Verified emails

77Mobile numbers

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The 25 largest pro bono consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 166 pro bono consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names pro bono consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Blackmont ConsultingPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	1,221
	“Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Source: company website · checked Sep 5, 2026
2	Cranfield TrustStrong evidence	Romsey, United KingdomHQ checked Sep 5, 2026	11-50	96
	“Cranfield Trust is a national charity and the UK's leading provider pro bono business support for the voluntary sector.” Source: company website · checked Sep 5, 2026
3	180 Degrees Consulting BathPartial evidence	Bath, United KingdomHQ checked Sep 5, 2026	51-200	71
	“180 Degrees Consulting is the world's largest consultancy for non-profits and social enterprises.” Source: company website · checked Sep 5, 2026
4	Action PlanningIndirect evidence	Beeston, United KingdomHQ checked Sep 5, 2026	n/a	61
	“Action Planning is a leading management consultancy for the not-for-profit sector.” Source: company website · checked Sep 5, 2026
5	180 Degrees Consulting Exeter CICPartial evidence	Exeter, United KingdomHQ checked Sep 5, 2026	11-50	53
	“As 180DC Exeter, we represent the global 180 Degrees Consulting Organisation from our HQ in the South West of the UK.” Source: company website · checked Sep 5, 2026
6	Freshsight LTDIndirect evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	51-200	52
	Source: company website · checked Sep 5, 2026
7	Philanthropy CompanyIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	37
	“Welcome to Philanthropy Company.” Source: company website · checked Sep 5, 2026
8	Fair CollectiveIndirect evidence	Sheffield, United KingdomHQ checked Sep 5, 2026	n/a	35
	“Fair Collective is a not-for-profit company that connects charities and other social good organisations with experienced, talented and friendly freelancers and consultants.” Source: company website · checked Sep 5, 2026
9	LawworksStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	28
	“Founded in 1997, LawWorks is a national charity working with solicitors to support, promote and encourage a commitment to pro bono across the profession.” Source: company website · checked Sep 5, 2026
10	Good2great LTDIndirect evidence	Bridgnorth, United KingdomHQ checked Sep 5, 2026	1-10	20
	“Let us help you grow your business.” Source: company website · checked Sep 5, 2026
11	LSE London Strategy GroupStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	16
	“London Strategy Group (LSG) is LSE’s premier pro-bono strategy consultancy.” Source: company website · checked Sep 5, 2026
12	Skyline Business ServicesIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	4
	“Skyline are typically invited in by the CEOs, Trustees and Directors of successful and ambitious charities.” Source: company website · checked Sep 5, 2026
13	Good Impact Group GIGIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	1-10	4
	“Connecting charities with marketing and business development leaders from professional services firms.” Source: company website · checked Sep 5, 2026
14	O'donnell AssociatesIndirect evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	1-10	3
	“We provide expert consultancy services for charities of all sizes across the UK, covering strategy, growth, transformational change, governance improvement, mergers, leadership…” Source: company website · checked Sep 5, 2026
15	Mission GrowthIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	3
	“Non profits, improve your fundraising, grow your revenue and make more impact!” Source: company website · checked Sep 5, 2026
16	The Business InstructorIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	2
	“Helping Small & Boutique Law Firms increase Clients & Profits and Work Fewer Hours - 543 Law Firms Transformed.” Source: company website · checked Sep 5, 2026
17	Blackbird ConsultingIndirect evidence	Bristol, United KingdomHQ checked Sep 5, 2026	1-10	2
	“Blackbird is about practical solutions supported by evidence and applied with sensitivity so you have the tools you need and the confidence to use them effectively.” Source: company website · checked Sep 5, 2026
18	Gone Consulting UKPartial evidence	Chipping Campden, United KingdomHQ checked Sep 5, 2026	1-10	2
	“With experience across a broad spectrum of business services, Gone Consulting provides management and support in the following areas:* Process and policy * Research projects *…” Source: company website · checked Sep 5, 2026
19	keepace.consultsIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	1-10	2
	“Fundraising can be challenging, there are never enough hours in the day and funds are never guarenteed but are vital to allowing you to accomplish your mission.” Source: company website · checked Sep 5, 2026
20	Sailfin Charity ConsultancyIndirect evidence	Ashford, United KingdomHQ checked Sep 5, 2026	1-10	2
	“We strengthen strategy, operations, & impact through practical guidance & tailored services.” Source: company website · checked Sep 5, 2026
21	OT ConsultantsPartial evidence	Reading, United KingdomHQ checked Sep 5, 2026	1-10	2
	“Organisation Transformation Consultants offers a wide range of consulting services to both the private and charity sectors.” Source: company website · checked Sep 5, 2026
22	Mcgarry ConsultingPartial evidence	Belfast, United KingdomHQ checked Sep 5, 2026	1-10	2
	“McGarry Consulting provide professional services to non-profit organisations and start-ups.” Source: company website · checked Sep 5, 2026
23	TromansconsultingPartial evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	2
	“The Change Agent is the brand name under which Richard Tromans provides consulting services to the legal sector.” Source: company website · checked Sep 5, 2026
24	The Fundraising AgencyIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	1
	“The Fundraising agency is an agency that works with a wide client base providing support based expertise, knowledge and know how for all of your business needs - Your business is…” Source: company website · checked Sep 5, 2026
25	BEN Robbins ConsultancyIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	1-10	1
	“A personal approach to assisting you to professionalise your organisation.” Source: company website · checked Sep 5, 2026

Showing 25 of 166 pro bono consulting firms based in the United Kingdom

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Pro bono consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 65 HQs

77Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

122

11-50

51-200

201-500

Verified emails by last verification

0–30

182

31–60

61–90

90–180

180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among pro bono consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

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: Companies headquartered in the United Kingdom whose own description of what they do matches “pro bono consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among pro bono consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 191 across the full list. 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 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Pro bono consulting firms by metro

Pro bono consulting firms in London65

Frequently asked

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

RevenueBase identified 166 pro bono consulting firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Blackmont Consulting, headquartered in London, tops this list with the largest team on record.

Which city has the most pro bono consulting firms?

London leads with 65 headquartered companies, followed by Manchester (8) and Cambridge (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 191 verified decision-maker contacts tracked across these 166 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 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.