Company lists · Data refreshed September 2026

Top 25 Donor marketing agencies worldwide

RevenueBase identified 1,030 company matches for donor marketing agencies worldwide as of September 2026 and tracks 13,261 professional contacts across them, including 4,334 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for donor marketing agencies worldwide, 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 28, 2026. Country and city lists for donor marketing agencies follow the table.

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 28, 2026 How this list was built
1,030Companies
13,261Contacts tracked
4,334Verified emails
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The 25 largest donor marketing agencies worldwide

Ranked by team size
Top 25 of 1,030 company matches for donor marketing agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 matchDes Moines, IA, United StatesHQ recorded Sep 28, 20261,001-5,0001,262 contacts →

Exact match

“CDS Global is the only provider that manages every customer and donor touchpoint-online and offline-across the entire journey.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 2026n/a559 contacts →

Exact match

“Appco UK is an expert at designing, planning, managing, executing and analysing field marketing and fundraising campaigns.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchPlano, TX, United StatesHQ recorded Sep 28, 2026201-500492 contacts →

Exact match

“RKD Group is the trusted growth architect for nonprofits.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchAlpharetta, GA, United StatesHQ recorded Sep 28, 2026501-1,000461 contacts →

Exact match

“We help more than purpose-driven organizations grow and amplify their impact on the world by providing transformative technology and services that enable organizations to grow…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchCherry Hill, NJ, United StatesHQ recorded Sep 28, 20261,001-5,000342 contacts →

Exact match

“Our motto says it all: We Help People Who Help People.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchWarrendale, PA, United StatesHQ recorded Sep 28, 2026201-500280 contacts →

Exact match

“TrueSense Marketing is a full-service, strategic, direct response fundraising agency and direct mail marketing company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchIndianapolis, IN, United StatesHQ recorded Sep 28, 202651-200204 contacts →

Exact match

“Helping fundraising teams raise more with smarter donor engagement.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchUnited StatesHQ recorded Sep 28, 2026501-1,000197 contacts →

Exact match

“Nonprofit Organizations count on The Heritage Company for fundraising and outreach to donors, members and other constituents.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchFargo, ND, United StatesHQ recorded Sep 28, 202651-200137 contacts →

Exact match

“AGP partners with mission-driven organizations nationwide to strengthen donor engagement and support long-term, sustainable performance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchKuala Lumpur Central, MalaysiaHQ recorded Sep 28, 2026201-500137 contacts →

Exact match

“We exist to support non-profits as they carry out their world-changing missions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchUsa, United StatesHQ recorded Sep 28, 202651-200125 contacts →

Exact match

“BWF Zuri is the nonprofit sector’s most comprehensive fundraising consulting company, helping organizations thrive in a rapidly changing landscape.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchToronto, ON, CanadaHQ recorded Sep 28, 2026501-1,000113 contacts →

Exact match

“iMarketing is North America’s pre-eminent integrated direct-marketing services company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchBerkeley, CA, United StatesHQ recorded Sep 28, 202651-200112 contacts →

Exact match

“Our team of expert consultants develops innovative direct marketing-driven donor development programs for exceptional nonprofit causes like yours.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchWest Des Moines, IA, United StatesHQ recorded Sep 28, 202651-200109 contacts →

Exact match

“In business since 1962, The Stelter Company is an integrated marketing agency that provides nonprofits with the insights and strategies needed to optimize revenue across the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchBend, OR, United StatesHQ recorded Sep 28, 202651-200106 contacts →

Exact match

“Zuri Group partners with nonprofit organizations to turn big ideas into reality.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-50090 contacts →

Exact match

“Up Fundraising is an Experiential Fundraising, Marketing and Brand Building company.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchToronto, CanadaHQ recorded Sep 28, 202611-5090 contacts →

Exact match

“Our mission is to provide leadership to nonprofit organizations in using new technologies to market, fundraise, advocate and brand build more effectively.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchAtlanta, GA, United StatesHQ recorded Sep 28, 202651-20083 contacts →

Exact match

“At MarkeTeam, we’ve spent the past 30 years doing good work that does good.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchTroy, MI, United StatesHQ recorded Sep 28, 202651-20080 contacts →

Exact match

“For organizations of all sizes and types, Phoenix Innovate is a marketing innovator that can be counted on to use its passion, vision and creativity to identify and solve business…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchLyndhurst, NJ, United StatesHQ recorded Sep 28, 202651-20079 contacts →

Exact match

“Marts & Lundy serves as a trusted partner to mission-driven organizations whose bold aspirations are realized through the power of philanthropy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchMontreal, QC, CanadaHQ recorded Sep 28, 202611-5079 contacts →

Exact match

“At Fundraising Direct we are passionate about innovation and creativity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchAurora, ON, CanadaHQ recorded Sep 28, 202651-20078 contacts →

Exact match

“Integrated fundraising strategy is our business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Sep 28, 202651-20074 contacts →

Exact match

“Avalon is a full-service fundraising consulting agency helping nonprofits realize the full potential of their direct marketing programs through multi-channel fundraising…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchCheltenham, United KingdomHQ recorded Sep 28, 202611-5072 contacts →

Exact match

“WE WORK WITH AMAZING ORGANISATIONS THAT MAKE THE WORLD A BETTER PLACE, THROUGH OPENING MINDS, CHANGING BEHAVIOUR AND TRIGGERING ACTION.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSan Francisco, CA, United StatesHQ recorded Sep 28, 202651-20070 contacts →

Exact match

“Media Cause is a mission-driven marketing and creative agency that helps nonprofits grow and accelerate their impact.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 1,030 donor marketing agencies worldwide

See the full list, filter by size, metro and specialty, and access 4,334 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Donor marketing agencies worldwide at a glance

As of Sep 28, 2026
32.7%Verified-email coverage
12.9Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
665
11-50
257
51-200
79
201-500
14
501-1,000
9
1,001-5,000
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for donor marketing agencies are linked below.
What qualifies
Company records worldwide whose business descriptions match “donor marketing agencies” 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. 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 4,334 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 28, 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.

Donor marketing agencies by location

5 lists · largest first

Every Donor marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many donor marketing agencies are there worldwide?

RevenueBase identified 1,030 company matches for donor marketing agencies worldwide 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?

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

Which country has the most donor marketing agencies?

The United States leads with 533 companies, followed by the United Kingdom (66) and Canada (60). Every donor marketing agencies list by country and city is linked on this page.

Which city has the most donor marketing agencies?

London leads with 28 company records, followed by New York (22) and Toronto (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 4,334 professional contacts with verified work emails tracked across these 1,030 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 28, 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.