Company lists · Data refreshed November 2026
Top 25 Nonprofit effectiveness organizations worldwide
RevenueBase identified 4,676 company matches for nonprofit effectiveness organizations worldwide as of November 2026 and tracks 28,654 professional contacts across them, including 8,620 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for nonprofit effectiveness organizations 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 nonprofit effectiveness organizations 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.
The 25 largest nonprofit effectiveness organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 894 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 | |||||
| 2 | 546 contacts → | ||||
Exact match “At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 479 contacts → | ||||
Exact match “The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 408 contacts → | ||||
Exact match “We make change happen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 306 contacts → | ||||
Exact match “Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 282 contacts → | ||||
Exact match “JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 262 contacts → | ||||
Exact match “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 257 contacts → | ||||
Exact match “GOPA PACE (GOPA Partners in Action for Change and Engagement S.A.) changed its name to GOPA Pro S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 244 contacts → | ||||
Exact match “TCC Group collaborates with leaders to solve complex social problems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 235 contacts → | ||||
Exact match “We have over 40 years of experience providing learning trajectories, advisory guidance, facilitation, evaluations, enterprise development, and partnership services worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 230 contacts → | ||||
Exact match “Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 213 contacts → | ||||
Exact match “We are M+R.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 193 contacts → | ||||
Exact match “De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 190 contacts → | ||||
Exact match “Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 149 contacts → | ||||
Exact match “AmPhil exists to promote the art of civil association by helping philanthropists, charitable foundations, and nonprofit organizations grow and flourish through practical guidance…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 134 contacts → | ||||
Exact match “Emergent Method is a nationally recognized management consulting firm focused on developing and implementing plans, programs, and initiatives that result in transformative impact.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 114 contacts → | ||||
Exact match “Smarter Good partners with social sector teams and leaders across 30 countries to build strong foundations for lasting impact.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 112 contacts → | ||||
Exact match “Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 109 contacts → | ||||
Exact match “Welcome to Sayer Vincent, experts in auditing and advising charities and social purpose organisations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 103 contacts → | ||||
Exact match “Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 102 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 | |||||
| 22 | 96 contacts → | ||||
Exact match “One of Fast Company's 2025 Best Workplaces for Innovators!* Third Plateau is an impact consultancy on a mission to build lasting social good.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 90 contacts → | ||||
Exact match “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 88 contacts → | ||||
Exact match “Schultz & Williams is a national consulting firm that helps nonprofits strengthen fundraising, leadership capacity and organizational strategy through development consulting…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 79 contacts → | ||||
Exact match “The Challenges Group is a global impact venture builder for enterprises with the potential to grow commercially and create meaningful social and environmental value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “nonprofit effectiveness organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 4,676 nonprofit effectiveness organizations worldwide
See the full list, filter by size, metro and specialty, and access 8,620 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Nonprofit effectiveness organizations worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 effectiveness organizations are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “nonprofit effectiveness organizations” 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 8,620 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.
Nonprofit effectiveness organizations by location
27 lists · largest firstEvery Nonprofit effectiveness organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Nonprofit effectiveness organizations based in the United States2,599
- Nonprofit effectiveness organizations based in Canada229
- Nonprofit effectiveness organizations based in the United Kingdom163
- Nonprofit effectiveness organizations based in Australia104
- Nonprofit effectiveness organizations based in India61
- Nonprofit effectiveness organizations based in the Netherlands41
- Nonprofit effectiveness organizations based in France35
Cities
- Nonprofit effectiveness organizations based in New York, United States138
- Nonprofit effectiveness organizations based in Washington, United States109
- Nonprofit effectiveness organizations based in Chicago, United States106
- Nonprofit effectiveness organizations based in Atlanta, United States69
- Nonprofit effectiveness organizations based in London, United Kingdom64
- Nonprofit effectiveness organizations based in Los Angeles, United States55
- Nonprofit effectiveness organizations based in Toronto, Canada47
- Nonprofit effectiveness organizations based in Seattle, United States45
- Nonprofit effectiveness organizations based in Boston, United States44
- Nonprofit effectiveness organizations based in Philadelphia, United States42
- Nonprofit effectiveness organizations based in Portland, United States42
- Nonprofit effectiveness organizations based in San Francisco, United States38
- Nonprofit effectiveness organizations based in Denver, United States37
- Nonprofit effectiveness organizations based in Houston, United States31
- Nonprofit effectiveness organizations based in Indianapolis, United States31
- Nonprofit effectiveness organizations based in Austin, United States30
- Nonprofit effectiveness organizations based in Dallas, United States30
- Nonprofit effectiveness organizations based in Minneapolis, United States25
- Nonprofit effectiveness organizations based in Phoenix, United States25
- Nonprofit effectiveness organizations based in Sydney, Australia25
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 effectiveness organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nonprofit effectiveness organizations are there worldwide?
RevenueBase identified 4,676 company matches for nonprofit effectiveness organizations 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 nonprofit effectiveness organizations?
The United States leads with 2,599 companies, followed by Canada (229) and the United Kingdom (163). Every nonprofit effectiveness organizations list by country and city is linked on this page.
Which city has the most nonprofit effectiveness organizations?
New York leads with 138 company records, followed by Washington (109) and Chicago (106).
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 8,620 professional contacts with verified work emails tracked across these 4,676 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.
Ready to reach these companies? Verified emails and direct dials for all 4,676 nonprofit effectiveness organizations worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 nonprofit effectiveness organizations worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 4,676 matching company records for nonprofit effectiveness organizations worldwide, with 28,654 tracked contacts and 8,620 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nonprofit effectiveness organizations worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  CCS Fundraisingccsfundraising.comHQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 894 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  FSGfsg.orgHQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 546 contacts → |
“At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  The Bridgespan Groupbridgespan.orgHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 479 contacts → |
“The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Delivery Associatesdeliveryassociates.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 408 contacts → |
“We make change happen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Nonprofit Hr, Powered By Onedigitalnonprofithr.comHQ: Washington, MA, United StatesReported employees: 10001+ | Washington, MA, United States | 10001+ | Exact match | 306 contacts → |
“Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  JCAjcainc.comHQ: Chicago, IL, United StatesReported employees: Not recorded | Chicago, IL, United States | Not recorded | Exact match | 282 contacts → |
“JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  SSA Consultantsconsultssa.comHQ: Baton Rouge, LA, United StatesReported employees: Not recorded | Baton Rouge, LA, United States | Not recorded | Exact match | 262 contacts → |
“We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Gopa Pacegopa.euHQ: Brussels, BelgiumReported employees: 51-200 | Brussels, Belgium | 51-200 | Exact match | 257 contacts → |
“GOPA PACE (GOPA Partners in Action for Change and Engagement S.A.) changed its name to GOPA Pro S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  TCC Grouptccgrp.comHQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 244 contacts → |
“TCC Group collaborates with leaders to solve complex social problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Ede, NetherlandsReported employees: 51-200 | Ede, Netherlands | 51-200 | Exact match | 235 contacts → |
“We have over 40 years of experience providing learning trajectories, advisory guidance, facilitation, evaluations, enterprise development, and partnership services worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Nonprofit Finance Fundnff.orgHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 230 contacts → |
“Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  M Rmrss.comHQ: Washington, United StatesReported employees: 51-200 | Washington, United States | 51-200 | Exact match | 213 contacts → |
“We are M+R.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  DE Kleine Consultantdekleineconsultant.nlHQ: Leiden, NetherlandsReported employees: 51-200 | Leiden, Netherlands | 51-200 | Exact match | 193 contacts → |
“De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Global Impactcharity.orgHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 190 contacts → |
“Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Amphilamphil.comHQ: Oak Park, AZ, United StatesReported employees: 51-200 | Oak Park, AZ, United States | 51-200 | Exact match | 149 contacts → |
“AmPhil exists to promote the art of civil association by helping philanthropists, charitable foundations, and nonprofit organizations grow and flourish through practical guidance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Emergent Methodemergentmethod.comHQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 134 contacts → |
“Emergent Method is a nationally recognized management consulting firm focused on developing and implementing plans, programs, and initiatives that result in transformative impact.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Smarter Good, INCsmartergood.comHQ: Makati City, CA, PhilippinesReported employees: 51-200 | Makati City, CA, Philippines | 51-200 | Exact match | 114 contacts → |
“Smarter Good partners with social sector teams and leaders across 30 countries to build strong foundations for lasting impact.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  JMT Consultingjmtconsulting.comHQ: Mount Juliet, TN, United StatesReported employees: 51-200 | Mount Juliet, TN, United States | 51-200 | Exact match | 112 contacts → |
“Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sayer Vincentsayervincent.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 109 contacts → |
“Welcome to Sayer Vincent, experts in auditing and advising charities and social purpose organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Campbell & Companycampbellcompany.comHQ: Chicago, WA, United StatesReported employees: 51-200 | Chicago, WA, United States | 51-200 | Exact match | 103 contacts → |
“Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  KCIkciphilanthropy.comHQ: Toronto, AB, CanadaReported employees: 51-200 | Toronto, AB, Canada | 51-200 | Exact match | 102 contacts → |
“At KCI, we are a firm focused on values and people…both ours and yours.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Third Plateauthirdplateau.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 96 contacts → |
“One of Fast Company's 2025 Best Workplaces for Innovators!* Third Plateau is an impact consultancy on a mission to build lasting social good.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Zuri Groupzurigroup.comHQ: Bend, OR, United StatesReported employees: 51-200 | Bend, OR, United States | 51-200 | Exact match | 90 contacts → |
“Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Schultz & Williamsschultzwilliams.comHQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 88 contacts → |
“Schultz & Williams is a national consulting firm that helps nonprofits strengthen fundraising, leadership capacity and organizational strategy through development consulting…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  The Challenges Groupthechallengesgroup.comHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 79 contacts → |
“The Challenges Group is a global impact venture builder for enterprises with the potential to grow commercially and create meaningful social and environmental value.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,676 company matches
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Nonprofit effectiveness organizations: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,669 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 4,676 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nonprofit effectiveness organizations by location
27 lists · largest firstEvery Nonprofit effectiveness organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Nonprofit effectiveness organizations based in the United States2,599
- Nonprofit effectiveness organizations based in Canada229
- Nonprofit effectiveness organizations based in the United Kingdom163
- Nonprofit effectiveness organizations based in Australia104
- Nonprofit effectiveness organizations based in India61
- Nonprofit effectiveness organizations based in the Netherlands41
- Nonprofit effectiveness organizations based in France35
Cities
- Nonprofit effectiveness organizations based in New York, United States138
- Nonprofit effectiveness organizations based in Washington, United States109
- Nonprofit effectiveness organizations based in Chicago, United States106
- Nonprofit effectiveness organizations based in Atlanta, United States69
- Nonprofit effectiveness organizations based in London, United Kingdom64
- Nonprofit effectiveness organizations based in Los Angeles, United States55
- Nonprofit effectiveness organizations based in Toronto, Canada47
- Nonprofit effectiveness organizations based in Seattle, United States45
- Nonprofit effectiveness organizations based in Boston, United States44
- Nonprofit effectiveness organizations based in Philadelphia, United States42
- Nonprofit effectiveness organizations based in Portland, United States42
- Nonprofit effectiveness organizations based in San Francisco, United States38
- Nonprofit effectiveness organizations based in Denver, United States37
- Nonprofit effectiveness organizations based in Houston, United States31
- Nonprofit effectiveness organizations based in Indianapolis, United States31
- Nonprofit effectiveness organizations based in Austin, United States30
- Nonprofit effectiveness organizations based in Dallas, United States30
- Nonprofit effectiveness organizations based in Minneapolis, United States25
- Nonprofit effectiveness organizations based in Phoenix, United States25
- Nonprofit effectiveness organizations based in Sydney, Australia25
Questions about this company list
What does Exact match mean for nonprofit effectiveness organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nonprofit effectiveness organizations did RevenueBase find worldwide?
The saved snapshot records 4,676 matching company records, 28,654 tracked contacts and 8,620 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 nonprofit effectiveness organizations worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/nonprofit-effectiveness-organizations.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 nonprofit effectiveness organizations worldwide
RevenueBase records 4,676 matching company records for nonprofit effectiveness organizations worldwide, with 28,654 tracked contacts and 8,620 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nonprofit effectiveness organizations worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | CCS Fundraisingccsfundraising.com HQ: New York, NY, United StatesReported employees: 501-1,000 | New York, NY, United States | 501-1,000 | Exact match | 894 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | FSGfsg.org HQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 546 contacts → |
“At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Bridgespan Groupbridgespan.org HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 479 contacts → |
“The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Delivery Associatesdeliveryassociates.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 408 contacts → |
“We make change happen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nonprofit Hr, Powered By Onedigitalnonprofithr.com HQ: Washington, MA, United StatesReported employees: 10001+ | Washington, MA, United States | 10001+ | Exact match | 306 contacts → |
“Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | JCAjcainc.com HQ: Chicago, IL, United StatesReported employees: Not recorded | Chicago, IL, United States | Not recorded | Exact match | 282 contacts → |
“JCA is the first and foremost independent consulting firm dedicated to addressing the technology and operational needs of nonprofits.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SSA Consultantsconsultssa.com HQ: Baton Rouge, LA, United StatesReported employees: Not recorded | Baton Rouge, LA, United States | Not recorded | Exact match | 262 contacts → |
“We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gopa Pacegopa.eu HQ: Brussels, BelgiumReported employees: 51-200 | Brussels, Belgium | 51-200 | Exact match | 257 contacts → |
“GOPA PACE (GOPA Partners in Action for Change and Engagement S.A.) changed its name to GOPA Pro S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | TCC Grouptccgrp.com HQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 244 contacts → |
“TCC Group collaborates with leaders to solve complex social problems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Ede, NetherlandsReported employees: 51-200 | Ede, Netherlands | 51-200 | Exact match | 235 contacts → |
“We have over 40 years of experience providing learning trajectories, advisory guidance, facilitation, evaluations, enterprise development, and partnership services worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Nonprofit Finance Fundnff.org HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 230 contacts → |
“Financing for nonprofits https://nff.org/our-work/financing/#Consulting for nonprofits https://nff.org/our-work/consulting/#Partnerships with funders and networks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | M Rmrss.com HQ: Washington, United StatesReported employees: 51-200 | Washington, United States | 51-200 | Exact match | 213 contacts → |
“We are M+R.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | DE Kleine Consultantdekleineconsultant.nl HQ: Leiden, NetherlandsReported employees: 51-200 | Leiden, Netherlands | 51-200 | Exact match | 193 contacts → |
“De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Global Impactcharity.org HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 190 contacts → |
“Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Amphilamphil.com HQ: Oak Park, AZ, United StatesReported employees: 51-200 | Oak Park, AZ, United States | 51-200 | Exact match | 149 contacts → |
“AmPhil exists to promote the art of civil association by helping philanthropists, charitable foundations, and nonprofit organizations grow and flourish through practical guidance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Emergent Methodemergentmethod.com HQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 134 contacts → |
“Emergent Method is a nationally recognized management consulting firm focused on developing and implementing plans, programs, and initiatives that result in transformative impact.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Smarter Good, INCsmartergood.com HQ: Makati City, CA, PhilippinesReported employees: 51-200 | Makati City, CA, Philippines | 51-200 | Exact match | 114 contacts → |
“Smarter Good partners with social sector teams and leaders across 30 countries to build strong foundations for lasting impact.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | JMT Consultingjmtconsulting.com HQ: Mount Juliet, TN, United StatesReported employees: 51-200 | Mount Juliet, TN, United States | 51-200 | Exact match | 112 contacts → |
“Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sayer Vincentsayervincent.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 109 contacts → |
“Welcome to Sayer Vincent, experts in auditing and advising charities and social purpose organisations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Campbell & Companycampbellcompany.com HQ: Chicago, WA, United StatesReported employees: 51-200 | Chicago, WA, United States | 51-200 | Exact match | 103 contacts → |
“Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | KCIkciphilanthropy.com HQ: Toronto, AB, CanadaReported employees: 51-200 | Toronto, AB, Canada | 51-200 | Exact match | 102 contacts → |
“At KCI, we are a firm focused on values and people…both ours and yours.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Third Plateauthirdplateau.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 96 contacts → |
“One of Fast Company's 2025 Best Workplaces for Innovators!* Third Plateau is an impact consultancy on a mission to build lasting social good.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Zuri Groupzurigroup.com HQ: Bend, OR, United StatesReported employees: 51-200 | Bend, OR, United States | 51-200 | Exact match | 90 contacts → |
“Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Schultz & Williamsschultzwilliams.com HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 88 contacts → |
“Schultz & Williams is a national consulting firm that helps nonprofits strengthen fundraising, leadership capacity and organizational strategy through development consulting…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Challenges Groupthechallengesgroup.com HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 79 contacts → |
“The Challenges Group is a global impact venture builder for enterprises with the potential to grow commercially and create meaningful social and environmental value.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Nonprofit effectiveness organizations: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
4,669 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 4,676 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nonprofit effectiveness organizations by location
27 lists · largest firstEvery Nonprofit effectiveness organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Nonprofit effectiveness organizations based in the United States2,599
- Nonprofit effectiveness organizations based in Canada229
- Nonprofit effectiveness organizations based in the United Kingdom163
- Nonprofit effectiveness organizations based in Australia104
- Nonprofit effectiveness organizations based in India61
- Nonprofit effectiveness organizations based in the Netherlands41
- Nonprofit effectiveness organizations based in France35
Cities
- Nonprofit effectiveness organizations based in New York, United States138
- Nonprofit effectiveness organizations based in Washington, United States109
- Nonprofit effectiveness organizations based in Chicago, United States106
- Nonprofit effectiveness organizations based in Atlanta, United States69
- Nonprofit effectiveness organizations based in London, United Kingdom64
- Nonprofit effectiveness organizations based in Los Angeles, United States55
- Nonprofit effectiveness organizations based in Toronto, Canada47
- Nonprofit effectiveness organizations based in Seattle, United States45
- Nonprofit effectiveness organizations based in Boston, United States44
- Nonprofit effectiveness organizations based in Philadelphia, United States42
- Nonprofit effectiveness organizations based in Portland, United States42
- Nonprofit effectiveness organizations based in San Francisco, United States38
- Nonprofit effectiveness organizations based in Denver, United States37
- Nonprofit effectiveness organizations based in Houston, United States31
- Nonprofit effectiveness organizations based in Indianapolis, United States31
- Nonprofit effectiveness organizations based in Austin, United States30
- Nonprofit effectiveness organizations based in Dallas, United States30
- Nonprofit effectiveness organizations based in Minneapolis, United States25
- Nonprofit effectiveness organizations based in Phoenix, United States25
- Nonprofit effectiveness organizations based in Sydney, Australia25
Questions about this company list
What does Exact match mean for nonprofit effectiveness organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nonprofit effectiveness organizations did RevenueBase find worldwide?
The saved snapshot records 4,676 matching company records, 28,654 tracked contacts and 8,620 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 nonprofit effectiveness organizations worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/nonprofit-effectiveness-organizations.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗