Company lists · Data refreshed November 2026

Top 25 Nonprofit interim management services worldwide

Name: Nonprofit interim management services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,419 companies tracked

RevenueBase identified 6,419 company matches for nonprofit interim management services worldwide as of November 2026 and tracks 27,332 professional contacts across them, including 6,989 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for nonprofit interim management services 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 interim management services 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

6,419Companies

27,332Contacts tracked

6,989Verified emails

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The 25 largest nonprofit interim management services worldwide

Ranked by team size

Top 25 of 6,419 company matches for nonprofit interim management services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tatum By Randstad	Exact match	Atlanta, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	415 contacts →
	Exact match “Tatum by Randstad provides on-demand C-suite executives and senior-level professionals to help companies manage critical initiatives in accounting, finance, technology, compliance…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Boer & Croon	Exact match	Amsterdam, NetherlandsHQ recorded Nov 6, 2026	51-200	330 contacts →
	Exact match “Boer & Croon Management Boer & Croon Management biedt haar opdrachtgevers een breed palet aan maatwerkoplossingen voor management vraagstukken.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Nonprofit Hr, Powered By Onedigital	Exact match	Washington, MA, United StatesHQ recorded Nov 6, 2026	10001+	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
4	Coordinated Care Services, Inc. Ccsi	Exact match	Rochester, NY, United StatesHQ recorded Nov 6, 2026	201-500	265 contacts →
	Exact match “CCSI is a not-for-profit management services organization with a special focus in the area of behavioral health and human services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Techcxo	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	201-500	229 contacts →
	Exact match “TechCXO provides companies with on demand executives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	R&r	Exact match	Aires, ArgentinaHQ recorded Nov 6, 2026	n/a	229 contacts →
	Exact match “Consultores en Ciencias Económicas Consultoría en gestión de empresas e instituciones.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	الزومان والفهد والحجاج للاستشارات المهنية	Exact match	Al Yasmin District, Saudi ArabiaHQ recorded Nov 6, 2026	51-200	191 contacts →
	Exact match “شركة الزومان والفهد والحجاج للاستشارات المهنية” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Valtus France	Exact match	Paris, FranceHQ recorded Nov 6, 2026	51-200	154 contacts →
	Exact match “Valtus is the leading reference for Executive Interim Management worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	IERIC	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	51-200	143 contacts →
	Exact match “IERIC is a nonprofit organization management company based out of Av.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Atreus	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	51-200	138 contacts →
	Exact match “With almost 100 employees and a network of more than managers, Atreus masters difficult management problems - especially in transformation and transition situations - when the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Hero Interim Professionals	Exact match	Wognum, NetherlandsHQ recorded Nov 6, 2026	51-200	132 contacts →
	Exact match “Interim Professionals \| Contracting Services \| Executive Search” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Arabella Advisors	Exact match	Washington, NY, United StatesHQ recorded Nov 6, 2026	201-500	127 contacts →
	Exact match “Arabella Advisors is a professional services firm that provides administrative, operational, and strategic support to nonprofits, foundations, and individual donors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	EIM Group	Exact match	Zug, SwitzerlandHQ recorded Nov 6, 2026	51-200	123 contacts →
	Exact match “EIM delivers business breakthrough differently.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Smarter Good, INC	Exact match	Makati City, CA, PhilippinesHQ recorded Nov 6, 2026	51-200	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
15	JMT Consulting	Exact match	Mount Juliet, TN, United StatesHQ recorded Nov 6, 2026	51-200	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
16	HR Talents NL	Exact match	Utrecht, NetherlandsHQ recorded Nov 6, 2026	51-200	108 contacts →
	Exact match “HR Talents biedt interim-oplossingen voor organisaties in elke sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Campbell & Company	Exact match	Chicago, WA, United StatesHQ recorded Nov 6, 2026	51-200	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
18	KCI	Exact match	Toronto, AB, CanadaHQ recorded Nov 6, 2026	51-200	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
19	OMS & CO	Exact match	Paris, FranceHQ recorded Nov 6, 2026	5,001-10,000	93 contacts →
	Exact match “OMS & Co combines the excellence of a top-tier consultancy firm with the flexibility of independents.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Pronexus, LLC	Exact match	Pittsford, MI, United StatesHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “WHO WE ARE ProNexus LLC is a finance, accounting, operations, and business advisory firm founded in 2012 by former Deloitte and PwC leaders.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	IMT Partners	Exact match	Paris, FranceHQ recorded Nov 6, 2026	11-50	91 contacts →
	Exact match “IMT Partners est un cabinet spécialisé dans le management de transition qui repose sur l'expertise de ses 50 collaborateurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Taskforce	Exact match	Munich, GermanyHQ recorded Nov 6, 2026	51-200	90 contacts →
	Exact match “taskforce ist Premiumanbieter für temporäres Management und als Sozietät auf die Vermittlung erstklassiger Interim Manager spezialisiert.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Schultz & Williams	Exact match	Philadelphia, PA, United StatesHQ recorded Nov 6, 2026	51-200	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
24	Arlande	Exact match	Maarssen, NetherlandsHQ recorded Nov 6, 2026	51-200	85 contacts →
	Exact match “Management is ons vak.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Bostrom	Exact match	Chicago, DC, United StatesHQ recorded Nov 6, 2026	51-200	85 contacts →
	Exact match “Bostrom is a professional services firm offering comprehensive management, consulting and outsourcing to the not-for-profit community.” 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 interim management services”. 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 6,419 nonprofit interim management services worldwide

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Nonprofit interim management services worldwide at a glance

As of Nov 6, 2026

25.6%Verified-email coverage

4.3Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Paris

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,663

11-50

549

51-200

140

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 interim management services are linked below.
What qualifies: Company records worldwide whose business descriptions match “nonprofit interim management services” 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 6,989 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 interim management services by location

31 lists · largest first

Every Nonprofit interim management services 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 “nonprofit interim management services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit interim management services are there worldwide?

RevenueBase identified 6,419 company matches for nonprofit interim management services 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?

Tatum By Randstad tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most nonprofit interim management services?

The United States leads with 1,654 companies, followed by the Netherlands (1,089) and Germany (345). Every nonprofit interim management services list by country and city is linked on this page.

Which city has the most nonprofit interim management services?

Paris leads with 83 company records, followed by London (82) and Amsterdam (70).

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 6,989 professional contacts with verified work emails tracked across these 6,419 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.