Company lists · Data refreshed September 2026

Top 25 Executive search firms nonprofit companies based in the United States

Name: Executive search firms nonprofit companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,672 companies tracked

RevenueBase identified 6,672 executive search firms nonprofit companies headquartered in the United States as of September 2026 and tracks 80,681 professional contacts across them, including 26,249 with verified work emails. New York is the largest hub.

This list covers executive search firms nonprofit companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

6,672Companies

80,681Contacts tracked

26,249Verified emails

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The 25 largest executive search firms nonprofit companies based in the United States

Ranked by team size

Top 25 of 6,672 executive search firms nonprofit companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to executive search firms nonprofit companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Heidrick & Struggles	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,376 contacts →
	Strong evidence “Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
2	Spencer Stuart	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,889 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
3	The Siegfried Group	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,573 contacts →
	Partial evidence “We help CFOs and executive teams clarify what matters most, then deliver elite financial talent to make it happen.” Source: RevenueBase Database · checked Sep 28, 2026
4	Career Strategies	Indirect evidence	Round Rock, TX, United StatesHQ checked Sep 28, 2026	n/a	955 contacts →
	Indirect evidence “Career Strategies is a full service staffing firm specializing in Property Management, Healthcare and Professional Services recruitment.” Source: RevenueBase Database · checked Sep 28, 2026
5	Boyden	Indirect evidence	Tarrytown, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	939 contacts →
	Indirect evidence “Transforming today’s organisations with tomorrow’s leaders.” Source: RevenueBase Database · checked Sep 28, 2026
6	True Search	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	501-1,000	807 contacts →
	Strong evidence “True is modernizing executive hiring by combining global search expertise with the True AI Capability Index™, the industry’s only methodology for assessing candidate adaptability…” Source: RevenueBase Database · checked Sep 28, 2026
7	Stanton Chase Executive Search & Leadership Consultants	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	766 contacts →
	Indirect evidence “Great organizations need exceptional leaders.” Source: RevenueBase Database · checked Sep 28, 2026
8	Solomon Page	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	687 contacts →
	Strong evidence “Founded in 1990, Solomon Page is a leading staffing and executive search firm headquartered in New York City with offices across the United States.” Source: RevenueBase Database · checked Sep 28, 2026
9	DHR Global	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	656 contacts →
	Strong evidence “For more than 35 years, DHR has been a leading provider of executive search, leadership consulting and emerging leader search solutions, serving more than 60 markets around the…” Source: RevenueBase Database · checked Sep 28, 2026
10	ZRG	Indirect evidence	Rochelle Park, NJ, United StatesHQ checked Sep 28, 2026	201-500	606 contacts →
	Indirect evidence “ZRG is a global talent advisory firm that is changing the way companies hire and manage talent.” Source: RevenueBase Database · checked Sep 28, 2026
11	Major, Lindsey & Africa	Partial evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	201-500	490 contacts →
	Partial evidence “Major, Lindsey & Africa is the world’s leading legal search and talent solutions firm.” Source: RevenueBase Database · checked Sep 28, 2026
12	PNP Staffing Group	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	n/a	486 contacts →
	Partial evidence “PNP Staffing Group believes in the power of nonprofits to make a difference, and we provide the staff to help make that difference.” Source: RevenueBase Database · checked Sep 28, 2026
13	Wittkieffer	Strong evidence	Oak Brook, IL, United StatesHQ checked Sep 28, 2026	201-500	474 contacts →
	Strong evidence “WittKieffer is the premier executive search and leadership advisory firm developing impactful leadership teams for organizations that improve quality of life.” Source: RevenueBase Database · checked Sep 28, 2026
14	Criterion Executive Search, INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	n/a	462 contacts →
	Strong evidence “Since 1981, Criterion Executive Search has built a reputation as a premier national recruiting firm, connecting exceptional talent with opportunity.” Source: RevenueBase Database · checked Sep 28, 2026
15	jja.co	Partial evidence	Beverly Hills, CA, United StatesHQ checked Sep 28, 2026	n/a	442 contacts →
	Partial evidence “JJA is a team of executive headhunters specializing in swift, discreet, drama-free placements across the innovation economy.” Source: RevenueBase Database · checked Sep 28, 2026
16	Career Group	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	416 contacts →
	Indirect evidence “Career Group is a widely recognized name in corporate and administrative recruitment.” Source: RevenueBase Database · checked Sep 28, 2026
17	HR Personnel Services	Strong evidence	Minnetonka, MN, United StatesHQ checked Sep 28, 2026	n/a	402 contacts →
	Strong evidence “HR Personnel Services is a leading national staffing and executive search firm specializing exclusively in placing HR professionals.” Source: RevenueBase Database · checked Sep 28, 2026
18	Retail Options	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 28, 2026	n/a	385 contacts →
	Partial evidence “We are a search firm that recruits for all businesses, big or small throughout the United States and Canada.” Source: RevenueBase Database · checked Sep 28, 2026
19	Stevendouglas	Indirect evidence	Sunrise, FL, United StatesHQ checked Sep 28, 2026	201-500	372 contacts →
	Indirect evidence “Since 1983, StevenDouglas has established itself as a recognized leader in providing access to top talent, driven by highly tenured and experienced professionals committed to…” Source: RevenueBase Database · checked Sep 28, 2026
20	Century Group	Partial evidence	El Segundo, CA, United StatesHQ checked Sep 28, 2026	51-200	343 contacts →
	Partial evidence “Century Group is an executive recruiting and professional staffing firm providing top-tier accounting, finance and human resources talent to start-up, mid-market and Fortune 500…” Source: RevenueBase Database · checked Sep 28, 2026
21	Atlas Search	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	322 contacts →
	Strong evidence “Atlas Search is an executive recruiting firm dedicated to placing accounting, finance, front office, middle office, technology, healthcare, clinical research, human resources, and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Staffing NOW	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	51-200	318 contacts →
	Indirect evidence “With a long history of relationship-building and a proven screening process, SNI’s administrative staffing agency, Staffing Now, delivers consistent results.” Source: RevenueBase Database · checked Sep 28, 2026
23	Apple & Associates	Strong evidence	Warrenville, SC, United StatesHQ checked Sep 28, 2026	n/a	305 contacts →
	Strong evidence “Apple & Associates is an executive search firm serving the following industries: Medical Device, Life Science, Pharmaceutical, Software, Government and National Laboratories and…” Source: RevenueBase Database · checked Sep 28, 2026
24	Nonprofit Hr, Powered By Onedigital	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	10001+	300 contacts →
	Partial evidence “Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Source: RevenueBase Database · checked Sep 28, 2026
25	SBI Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	n/a	295 contacts →
	Partial evidence “SBI Partners is a boutique search firm with 50 years of combined recruitment experience specializing in the placement of Accounting, Finance and Supply Chain professionals.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: executive search firms nonprofit companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names executive search firms nonprofit companies.
Partial evidence: Its own public description names part of executive search firms nonprofit companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name executive search firms nonprofit companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 6,672 executive search firms nonprofit companies based in the United States

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Executive search firms nonprofit companies based in the United States at a glance

As of Sep 28, 2026

32.5%Verified-email coverage

12.1Average contacts per company

1-10Median size (employees)

8.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,968

11-50

1,349

51-200

251

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,672 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among executive search firms nonprofit companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “executive search firms nonprofit companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names executive search firms nonprofit companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among executive search firms nonprofit companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 26,249 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Executive search firms nonprofit companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names executive search firms nonprofit companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many executive search firms nonprofit companies are there based in the United States?

RevenueBase identified 6,672 executive search firms nonprofit companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Heidrick & Struggles, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most executive search firms nonprofit companies?

New York leads with 570 headquartered companies, followed by Chicago (246) and Atlanta (181).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 26,249 verified decision-maker contacts tracked across these 6,672 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.