Company lists · Data refreshed November 2026

Top 25 Online fundraising consultants worldwide

RevenueBase identified 2,597 company matches for online fundraising consultants worldwide as of November 2026 and tracks 23,290 professional contacts across them, including 8,790 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for online fundraising consultants 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 November 6, 2026. Country and city lists for online fundraising consultants 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 Nov 6, 2026 How this list was built
2,597Companies
23,290Contacts tracked
8,790Verified emails
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The 25 largest online fundraising consultants worldwide

Ranked by team size
Top 25 of 2,597 company matches for online fundraising consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNew York, NY, United StatesHQ recorded Nov 6, 2026501-1,000894 contacts →

Exact match

“For over 75 years, CCS Fundraising has empowered many of the world’s greatest organizations to advance some of the most important causes in history.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPlano, TX, United StatesHQ recorded Nov 6, 2026201-500514 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCherry Hill, United StatesHQ recorded Nov 6, 20261,001-5,000357 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCarmel, IN, United StatesHQ recorded Nov 6, 202651-200322 contacts →

Exact match

“Raise more and reach more donors with OneCause Fundraising Software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWarrendale, PA, United StatesHQ recorded Nov 6, 2026201-500281 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500243 contacts →

Exact match

“At MissionWired, we believe your world-changing cause deserves more than marginal gains.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-200222 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchUnited StatesHQ recorded Nov 6, 2026501-1,000221 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWashington, United StatesHQ recorded Nov 6, 202651-200213 contacts →

Exact match

“We are M+R.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 202651-200198 contacts →

Exact match

“Our mission is to move the needle on global generosity by helping nonprofits better connect with and inspire their supporters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRemote Usa, United StatesHQ recorded Nov 6, 202651-200176 contacts →

Exact match

“Givebutter is the most-loved nonprofit fundraising platform, empowering millions of changemakers to raise more, pay less, and give better.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a159 contacts →

Exact match

“O'Brien Garrett is a comprehensive fundraising and communications company serving some of the nation's top nonprofits.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlexandria, VA, United StatesHQ recorded Nov 6, 202651-200158 contacts →

Exact match

“Donorbox is an all-in-one fundraising platform built to maximize every giving opportunity and strengthen donor loyalty.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKuala Lumpur Central, MalaysiaHQ recorded Nov 6, 2026201-500145 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFargo, ND, United StatesHQ recorded Nov 6, 202651-200133 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchUnited StatesHQ recorded Nov 6, 2026201-500128 contacts →

Exact match

“Full Service Print/Direct mail Company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchUnited StatesHQ recorded Nov 6, 2026501-1,000123 contacts →

Exact match

“Since 1988, our mission has been to raise funds and build support for progressive causes and candidates.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBerkeley, DC, United StatesHQ recorded Nov 6, 202651-200121 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWest Des Moines, IA, United StatesHQ recorded Nov 6, 202651-200115 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSydney, CA, AustraliaHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“We’re Funraisin-the platform for ambitious fundraising.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchReading, United KingdomHQ recorded Nov 6, 2026201-500113 contacts →

Exact match

“Charity Link delivers fundraising and awareness campaigns for the charity sector through our passionate, professional and ethical way of working.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchToronto, AB, CanadaHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“At KCI, we are a firm focused on values and people…both ours and yours.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMonrovia, CA, United StatesHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“OUR AGENCY: BDI is a full-service, omni-channel, marketing and fundraising agency for nonprofits.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“Orr Group is a nonprofit consulting firm specializing in the business of philanthropy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNew York, ON, United StatesHQ recorded Nov 6, 2026201-50094 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,597 online fundraising consultants worldwide

See the full list, filter by size, metro and specialty, and access 8,790 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Online fundraising consultants worldwide at a glance

As of Nov 6, 2026
37.7%Verified-email coverage
9.0Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,938
11-50
486
51-200
132
201-500
19
501-1,000
7
1,001-5,000
6

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 online fundraising consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “online fundraising 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. 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 8,790 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 November 6, 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.

Online fundraising consultants by location

14 lists · largest first

Every Online fundraising consultants 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 “online fundraising consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online fundraising consultants are there worldwide?

RevenueBase identified 2,597 company matches for online fundraising consultants worldwide as of November 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?

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

Which country has the most online fundraising consultants?

The United States leads with 1,288 companies, followed by the United Kingdom (229) and Canada (135). Every online fundraising consultants list by country and city is linked on this page.

Which city has the most online fundraising consultants?

London leads with 79 company records, followed by New York (78) and Washington (74).

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 8,790 professional contacts with verified work emails tracked across these 2,597 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 November 6, 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.