Company lists · Data refreshed September 2026

Top 25 Interim management services based in the United States

Name: Interim management services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 425 companies tracked

RevenueBase identified 425 interim management services headquartered in the United States as of September 2026 and tracks 2,373 professional contacts across them, including 669 with verified work emails. New York is the largest hub.

This list covers interim management services 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 20, 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 20, 2026 86% judged on-target in blind review

425Companies

2,373Contacts tracked

669Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest interim management services based in the United States

Ranked by team size

Top 25 of 425 interim management services based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to interim management services: 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	Tatum By Randstad	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	501-1,000	407 contacts →
	Indirect evidence “Tatum by Randstad provides on-demand C-suite executives and senior-level professionals to help companies manage critical initiatives in accounting, finance, technology, compliance…” Source: RevenueBase Database · checked Sep 20, 2026
2	Techcxo	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	201-500	215 contacts →
	Indirect evidence “TechCXO provides companies with on demand executives.” Source: RevenueBase Database · checked Sep 20, 2026
3	Advanced Medical Management, INC	Partial evidence	Long Beach, CA, United StatesHQ checked Sep 20, 2026	51-200	145 contacts →
	Partial evidence “Advanced Medical Management, Inc.(“AMM”) is a full-service management services organization providing healthcare business management and consulting services since 1995.” Source: RevenueBase Database · checked Sep 20, 2026
4	Stage 4 Solutions	Partial evidence	Saratoga, CA, United StatesHQ checked Sep 20, 2026	51-200	122 contacts →
	Partial evidence “Stage 4 Solutions is a consulting and interim staffing firm ranked on the Inc.” Source: RevenueBase Database · checked Sep 20, 2026
5	Interim Executive Solutions, LLC	Partial evidence	Newton Highlands, MA, United StatesHQ checked Sep 20, 2026	n/a	50 contacts →
	Partial evidence “Interim Executive Solutions provides experienced leaders to work with non-profit organizations in transition.” Source: RevenueBase Database · checked Sep 20, 2026
6	Arts Consulting Group	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	11-50	49 contacts →
	Strong evidence “Arts Consulting Group (ACG) is the leading provider of hands-on interim management, executive search, revenue enhancement, strategic planning & community engagement, facilities &…” Source: RevenueBase Database · checked Sep 20, 2026
7	Exechq	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 20, 2026	51-200	44 contacts →
	Indirect evidence “ExecHQ helps companies drive growth and profitability by providing high-level, on-demand executive expertise through its "Executives as a Service"(ExaaS) model.” Source: RevenueBase Database · checked Sep 20, 2026
8	Valtas	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 20, 2026	11-50	40 contacts →
	Indirect evidence “Valtas stands for a shift or pivot forward.” Source: RevenueBase Database · checked Sep 20, 2026
9	Rankin Mckenzie	Partial evidence	Cary, NC, United StatesHQ checked Sep 20, 2026	11-50	35 contacts →
	Partial evidence “Rankin McKenzie is based in the RTP (Raleigh, Durham, Chapel Hill) area of North Carolina and provides part-time and interim CFO services to growth companies needing financial and…” Source: RevenueBase Database · checked Sep 20, 2026
10	N Human Resources & Management Systems Nhrms	Indirect evidence	Nyc, NY, United StatesHQ checked Sep 20, 2026	11-50	33 contacts →
	Indirect evidence “Since 2009, nHRMS Executive Search has assisted corporations and career professionals in achieving their goals.” Source: RevenueBase Database · checked Sep 20, 2026
11	Florida CFO Group	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 20, 2026	11-50	32 contacts →
	Partial evidence “Founded in 2010, the Florida CFO Group provides part-time and interim CFO services to growth companies.” Source: RevenueBase Database · checked Sep 20, 2026
12	Greenlining Management	Partial evidence	Braintree, MA, United StatesHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “Greenlining Management is known and appreciated by our clients for our commitment from project initiation to final delivery and the ongoing help and flow of fresh ideas and…” Source: RevenueBase Database · checked Sep 20, 2026
13	Metaexperts	Partial evidence	Mattawan, MI, United StatesHQ checked Sep 20, 2026	11-50	25 contacts →
	Partial evidence “MetaExperts™ offers Extreme Talent and Interim executive resources for Operational Excellence on demand.” Source: RevenueBase Database · checked Sep 20, 2026
14	Wells Group	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Wells Group of New York is a boutique management consulting firm based in New York City.” Source: RevenueBase Database · checked Sep 20, 2026
15	Thaxton Leadership	Partial evidence	Portland, OR, United StatesHQ checked Sep 20, 2026	51-200	20 contacts →
	Partial evidence “Since 2001, Thaxton has been dedicated to providing the highest quality Interim Healthcare Leaders to Hospitals and Healthcare Systems throughout the United States.” Source: RevenueBase Database · checked Sep 20, 2026
16	Cerius Executives	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	20 contacts →
	Indirect evidence “Cerius is Your Single Source for Executive Leadership.” Source: RevenueBase Database · checked Sep 20, 2026
17	Interimexecs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1-10	18 contacts →
	Partial evidence “InterimExecs' Rapid Executive Deployment™ Program (RED) matches organizations facing big challenges and opportunities with accomplished executives who can be deployed individually…” Source: RevenueBase Database · checked Sep 20, 2026
18	CXORE	Indirect evidence	Davis, CA, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “CxORE empowers organizations with flexible and scalable access to executive leadership and comprehensive support services as they navigate critical challenges, initiatives…” Source: RevenueBase Database · checked Sep 20, 2026
19	Global Interworks Staffing Solution	Partial evidence	King Of Prussia, PA, United StatesHQ checked Sep 20, 2026	51-200	14 contacts →
	Partial evidence “Whether our customers need a consultant with a specific technical expertise to round out a project team, or a senior executive to spearhead a major project, GISS interim staffing…” Source: RevenueBase Database · checked Sep 20, 2026
20	C Squared Solutions LLC	Partial evidence	Denver, CO, United StatesHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “C Squared Solutions provides deeply experienced fractional or interim CEOs, CFOs and COOs to support and round out leadership teams.” Source: RevenueBase Database · checked Sep 20, 2026
21	CXO Partners	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “CXO Partners is a professional services firm that helps businesses manage change, improve performance and drive greater value for shareholders for middle market businesses across…” Source: RevenueBase Database · checked Sep 20, 2026
22	Avert Network Services	Indirect evidence	Arlington, TX, United StatesHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “In the bustling landscape of IT services firms in the Dallas Fort Worth area, it's true that there are numerous options for computer repair.” Source: RevenueBase Database · checked Sep 20, 2026
23	Foundertherapy	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “We augment their teams with the leadership and executional resources to hit their next business milestone.” Source: RevenueBase Database · checked Sep 20, 2026
24	TAG CXO	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “TAG CXO is delivering the right executive-level leadership at the right time so your organization can move faster and smarter with confidence.” Source: RevenueBase Database · checked Sep 20, 2026
25	C-Suite Support	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “What is a Contract Executive?” Source: RevenueBase Database · checked Sep 20, 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: interim management services. 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 interim management services.
Partial evidence: Its own public description names part of interim management services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name interim management services. 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 425 interim management services based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 669 reachable decision-makers.

Free signup · no credit card

View the full list →

Interim management services based in the United States at a glance

As of Sep 20, 2026

28.2%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

3.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

357

11-50

51-200

201-500

501-1,000

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 425 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 interim management services, 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 “interim management services”. 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 interim management services), 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 interim management services, 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, 669 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 20, 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.

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 interim management services, 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 interim management services are there based in the United States?

RevenueBase identified 425 interim management services 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?

Tatum By Randstad, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most interim management services?

New York leads with 16 headquartered companies, followed by Chicago (12) and Houston (11).

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 669 verified decision-maker contacts tracked across these 425 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 425 interim management services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Interim management services by geography

Browse the directory

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.