Company lists · Data refreshed September 2026

Top 25 Nonprofit fundraising call centers worldwide

RevenueBase identified 396 company matches for nonprofit fundraising call centers worldwide as of September 2026 and tracks 10,042 professional contacts across them, including 1,895 with verified work emails. The United States is the largest market and Toronto the largest hub.

This list covers company matches for nonprofit fundraising call centers 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 29, 2026. Country and city lists for nonprofit fundraising call centers 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 29, 2026 How this list was built
396Companies
10,042Contacts tracked
1,895Verified emails
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The 25 largest nonprofit fundraising call centers worldwide

Ranked by team size
Top 25 of 396 company matches for nonprofit fundraising call centers worldwide, 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 matchDes Moines, IA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3Exact matchPlano, TX, United StatesHQ recorded Sep 29, 2026201-500492 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchCherry Hill, NJ, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5Exact matchMesa, AZ, United StatesHQ recorded Sep 29, 2026201-500266 contacts →

Exact match

“MDS provides a complete array of telephone fundraising services for non-profit and political organizations.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Sep 29, 2026201-500249 contacts →

Exact match

“ONG Conseil, principal acteur de la collecte de fonds en face à face et premier employeur de recruteurs de donateurs, a permis de recruter plus d'1,5 million de donateurs…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchToronto, ON, CanadaHQ recorded Sep 29, 2026201-500242 contacts →

Exact match

“Globalfaces Direct provides smart, scalable face-to-face fundraising services to charities around the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchUnited StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202651-200157 contacts →

Exact match

“We are a face-to-face fundraising agency, connecting donors and the causes they are passionate about.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchNorth York, ON, CanadaHQ recorded Sep 29, 2026201-500117 contacts →

Exact match

“Miratel is a Toronto based, 24 x 7 inbound and outbound contact centre and mail house specializing in nonprofit fundraising services such as telephone fundraising, lottery…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchToronto, ON, CanadaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
12Exact matchCabot, AR, United StatesHQ recorded Sep 29, 202651-20099 contacts →

Exact match

“At Wilson-Bennett Technology, Inc.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchChippenham, United KingdomHQ recorded Sep 29, 2026201-50098 contacts →

Exact match

“At Woods Valldata, we’re here for you and there for your supporters.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchReading, United KingdomHQ recorded Sep 29, 2026201-50085 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 · Sep 29, 2026 · View company records in RevenueBase
15Exact matchDenver, CO, United StatesHQ recorded Sep 29, 202651-20084 contacts →

Exact match

“We are Donor Development Strategies (DDS), a national field-organizing firm that specializes in raising money and signing up members for high-profile non-profits through…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchWeston, United KingdomHQ recorded Sep 29, 2026501-1,00084 contacts →

Exact match

“Wesser – “Ethical Fundraising, Outstanding Service” – Since 1968 Wesser offers an all-in-one fundraising programme consisting of face-to-face supporter recruitment, telephone…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchAarhus, DenmarkHQ recorded Sep 29, 2026201-50081 contacts →

Exact match

“The Call Company A/S er et telemarketingbureau og callcenter.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchMontreal, QC, CanadaHQ recorded Sep 29, 202611-5079 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
20Exact matchCalgary, AB, CanadaHQ recorded Sep 29, 202651-20074 contacts →

Exact match

“Français à suivre* Global Philanthropic Canada is a full-service Canadian fundraising consultancy of highly experienced practitioners.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchNew York, CA, United StatesHQ recorded Sep 29, 202651-20062 contacts →

Exact match

“DialogueDirect fundraisers are trained, passionate advocates for our world-class charity partners.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202651-20059 contacts →

Exact match

“Graham-Pelton is the fundraising consulting firm chosen by leading nonprofits worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchMoorestown, NJ, United StatesHQ recorded Sep 29, 202611-5059 contacts →

Exact match

“Sustainable Donors through a Sustainable Approach Threshold Giving is a division of The Threshold Group and RCH Companies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchFalmouth, United KingdomHQ recorded Sep 29, 202611-5057 contacts →

Exact match

“We work with over 70 charities (of differing sizes) on a range of campaigns, making over calls per year and raising in excess of £7M a year, The consistent ethos of QTS is that we…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchTucson, AZ, United StatesHQ recorded Sep 29, 202651-20056 contacts →

Exact match

“Streetlight Digital is a full-spectrum nonprofit fundraising and marketing partner.”

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

Showing 25 of 396 nonprofit fundraising call centers worldwide

See the full list, filter by size, metro and specialty, and access 1,895 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit fundraising call centers worldwide at a glance

As of Sep 29, 2026
18.9%Verified-email coverage
25.4Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Toronto
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
160
11-50
123
51-200
71
201-500
25
501-1,000
8
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 nonprofit fundraising call centers are linked below.
What qualifies
Company records worldwide whose business descriptions match “nonprofit fundraising call centers” 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 1,895 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 fundraising call centers by location

3 lists · largest first

Every Nonprofit fundraising call centers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 fundraising call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit fundraising call centers are there worldwide?

RevenueBase identified 396 company matches for nonprofit fundraising call centers 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 nonprofit fundraising call centers?

The United States leads with 155 companies, followed by the United Kingdom (32) and Canada (30). Every nonprofit fundraising call centers list by country and city is linked on this page.

Which city has the most nonprofit fundraising call centers?

Toronto leads with 13 company records, followed by New York (10) and Dallas (6).

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 1,895 professional contacts with verified work emails tracked across these 396 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.