Company lists · Data refreshed September 2026

Top 25 Nonprofit marketing consultants based in London, United Kingdom

RevenueBase identified 372 company matches for nonprofit marketing consultants associated with London, United Kingdom as of September 2026 and tracks 1,317 professional contacts across them, including 406 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for nonprofit marketing consultants 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 29, 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 29, 2026 How this list was built
372Companies
1,317Contacts tracked
406Verified emails
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The 25 largest nonprofit marketing consultants based in London, United Kingdom

Ranked by team size
Top 25 of 372 company matches for nonprofit marketing consultants based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 29, 2026201-500130 contacts →

Exact match

“Instinctif UK has officially rebranded to TEAM LEWIS.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20068 contacts →

Exact match

“At smartimpact, we thrive on making great technology work for amazing organisations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5068 contacts →

Exact match

“We’re international brand, design and marketing consultants that have spent the three decades helping help brave decision makers start, transform and grow highly successful…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20047 contacts →

Exact match

“MUSE is a full-service marketing and communications consultancy, with expertise in brand strategy, marketing, communication, design, public relations, digital, publishing and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5037 contacts →

Exact match

“Brands need to work harder than ever to engage in these testing times.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5030 contacts →

Exact match

“Are you a fundraiser wanting to increase online donations?”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1024 contacts →

Exact match

“We help you work out what marketing and business development you should be doing (the strategy) AND how to get it done (the implementation).”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5023 contacts →

Exact match

“We are a student-run society at UCL that provides consulting services completely free of charge to socially conscious organizations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5022 contacts →

Exact match

“We are an insight-led, creative and brand consultancy, focused on creating new futures for our ever-growing list of clients.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5021 contacts →

Exact match

“At Hart Square, we have been dedicated to the non-profit sector since 2009.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“AAW Group are pioneers in non-profit recruitment and strategic fundraising consultancy.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1017 contacts →

Exact match

“Creative business solutions to power positive social impact.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1015 contacts →

Exact match

“IFCo is an award-winning consultancy specialising in fundraising, management, marketing and communications.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1014 contacts →

Exact match

“How We Work: Strategy to Results, No Fluff.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5014 contacts →

Exact match

“We are a dedicated team of UK and international experts that bring together the latest thinking, innovation and best practice in generating support for important causes.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1013 contacts →

Exact match

“We are a collective of strategic thinkers & creative problem solvers, passionate about helping brands we love grow.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-1012 contacts →

Exact match

“Boster Group is an award-winning independent marketing consultancy that creates innovative brand partnerships for global corporations, foundations and cultural institutions to…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-509 contacts →

Exact match

“Sekna is a digital marketing agency that empowers charities and NGOs to make a meaningful impact.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-508 contacts →

Exact match

“We bring insight, creativity and expertise to help achieve growth and deliver real impact for people-serving causes.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-108 contacts →

Exact match

“MetacortX is a strategic marketing consultancy built for ambitious businesses that need marketing expertise without the overhead of a full internal team.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-108 contacts →

Exact match

“We help our clients find out their “Unique Greatness” and understand what they need to share and show online.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-108 contacts →

Exact match

“Founded in 2020, Coldr is an ambitious, award-winning, Bcorp certified, strategy, cultural marketing and social impact firm.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-107 contacts →

Exact match

“Still Curious is a marketing agency specialising in sustainability, innovation and behaviour change.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 29, 20261-107 contacts →

Exact match

“We are Flying Cars.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-506 contacts →

Exact match

“There is always the potential to grow.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 372 nonprofit marketing consultants based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 406 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit marketing consultants based in London, United Kingdom at a glance

As of Sep 29, 2026
30.8%Verified-email coverage
3.5Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
323
11-50
38
51-200
7
201-500
2
10001+
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 372 companies.

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 London, United Kingdom whose business descriptions match “nonprofit marketing consultants” 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 406 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 29, 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.

Nonprofit marketing consultants 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 “nonprofit marketing consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit marketing consultants are there based in London, United Kingdom?

RevenueBase identified 372 company matches for nonprofit marketing consultants 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?

Instinctif Partners 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 nonprofit marketing consultants?

London leads the United Kingdom with 372 company records, followed by Manchester (38) and Leeds (21).

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 406 professional contacts with verified work emails tracked across these 372 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 29, 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.