Company lists · Data refreshed September 2026

Top 25 Impact measurement consulting firms based in the United States

Name: Impact measurement consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 2,470 companies tracked

RevenueBase identified 2,470 impact measurement consulting firms headquartered in the United States as of September 2026 and tracks 19,822 professional contacts across them, including 5,661 with verified work emails and 7,423 with mobile numbers. New York is the largest hub.

This list covers impact measurement consulting firms 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 3, 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 3, 2026 86% judged on-target in blind review

2,470Companies

19,822Contacts tracked

5,661Verified emails

7,423Mobile numbers

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The 25 largest impact measurement consulting firms based in the United States

Ranked by team size

Top 25 of 2,470 impact measurement consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to impact measurement consulting firms: 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	Bank Of The West	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 3, 2026	n/a	4,790 contacts →
	Indirect evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 3, 2026
2	FROG	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 3, 2026	1,001-5,000	1,746 contacts →
	Indirect evidence “frog is the reinvention and experience partner for the eco-digital era.” Source: RevenueBase Database · checked Sep 3, 2026
3	Lucas Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 3, 2026	10001+	765 contacts →
	Partial evidence “Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.” Source: RevenueBase Database · checked Sep 3, 2026
4	SSA Consultants	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 3, 2026	n/a	259 contacts →
	Indirect evidence “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Source: RevenueBase Database · checked Sep 3, 2026
5	TCC Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 3, 2026	n/a	230 contacts →
	Indirect evidence “TCC Group collaborates with leaders to solve complex social problems.” Source: RevenueBase Database · checked Sep 3, 2026
6	Medialink	Partial evidence	Beverly Hills, NY, United StatesHQ checked Sep 3, 2026	51-200	205 contacts →
	Partial evidence “MediaLink is the leading consulting firm serving the media and marketing industry’s C-suite.” Source: RevenueBase Database · checked Sep 3, 2026
7	Good Company	Partial evidence	Washington, DC, United StatesHQ checked Sep 3, 2026	n/a	186 contacts →
	Partial evidence “Founded in 2006, Good Company is a social impact consultancy specializing in innovative, collaborative marketing, partnerships and communications strategies with purpose.” Source: RevenueBase Database · checked Sep 3, 2026
8	Ks&r	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 3, 2026	51-200	176 contacts →
	Indirect evidence “KS & R is a nationally recognized strategic consultancy and marketing research firm that provides clients with timely, fact-based insights and actionable solutions through…” Source: RevenueBase Database · checked Sep 3, 2026
9	Cicero , Part Of MGT	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 3, 2026	51-200	149 contacts →
	Partial evidence “Cicero® is a premier management consulting firm focused on implementing data-driven strategies for a broad mix of private, public, and social sector organizations across the globe.” Source: RevenueBase Database · checked Sep 3, 2026
10	Devtech Systems, INC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 3, 2026	11-50	139 contacts →
	Partial evidence “DevTech Systems, Inc.(DevTech) is an international consulting firm that delivers data-driven intelligence that de-risks investment, strengthens public finance, and supports…” Source: RevenueBase Database · checked Sep 3, 2026
11	Emergent Method	Strong evidence	Baton Rouge, LA, United StatesHQ checked Sep 3, 2026	51-200	126 contacts →
	Strong evidence “Emergent Method is a nationally recognized management consulting firm focused on developing and implementing plans, programs, and initiatives that result in transformative impact.” Source: RevenueBase Database · checked Sep 3, 2026
12	Summit	Partial evidence	Washington, DC, United StatesHQ checked Sep 3, 2026	51-200	120 contacts →
	Partial evidence “Summit is a quantitative consulting and data analytics firm that works with public and commercial clients to turn data into actionable intelligence.” Source: RevenueBase Database · checked Sep 3, 2026
13	ORB International	Indirect evidence	Charlottesville, VA, United StatesHQ checked Sep 3, 2026	51-200	116 contacts →
	Indirect evidence “Opinion Research Business International (ORB) is a full-service monitoring, evaluation, research, and analysis firm with experience in 120+ countries around the world.” Source: RevenueBase Database · checked Sep 3, 2026
14	Zuri Group	Indirect evidence	Bend, OR, United StatesHQ checked Sep 3, 2026	51-200	106 contacts →
	Indirect evidence “Zuri Group partners with nonprofit organizations to turn big ideas into reality.” Source: RevenueBase Database · checked Sep 3, 2026
15	Campbell & Company	Strong evidence	Chicago, WA, United StatesHQ checked Sep 3, 2026	51-200	102 contacts →
	Strong evidence “Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.” Source: RevenueBase Database · checked Sep 3, 2026
16	Keadjian	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 3, 2026	51-200	96 contacts →
	Indirect evidence “It begins with a story.” Source: RevenueBase Database · checked Sep 3, 2026
17	Resonance	Indirect evidence	Burlington, VT, United StatesHQ checked Sep 3, 2026	51-200	96 contacts →
	Indirect evidence “At Resonance, we help our clients unlock opportunity in frontier markets by designing action-based strategies, forging strategic partnerships, and executing across sector…” Source: RevenueBase Database · checked Sep 3, 2026
18	M A R C Research	Partial evidence	Plano, TX, United StatesHQ checked Sep 3, 2026	51-200	94 contacts →
	Partial evidence “M/A/R/C® Research is a consulting firm providing insights and strategies to empower clients worldwide with the clarity to move forward with confidence.” Source: RevenueBase Database · checked Sep 3, 2026
19	Rios Partners	Partial evidence	Arlington, VA, United StatesHQ checked Sep 3, 2026	51-200	87 contacts →
	Partial evidence “Rios Partners provides management consulting services to commercial, non-profit, and government clients in the Washington, D.C.” Source: RevenueBase Database · checked Sep 3, 2026
20	Third Plateau	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 3, 2026	51-200	86 contacts →
	Partial evidence “One of Fast Company's 2025 Best Workplaces for Innovators!* Third Plateau is an impact consultancy on a mission to build lasting social good.” Source: RevenueBase Database · checked Sep 3, 2026
21	Schultz & Williams	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 3, 2026	51-200	82 contacts →
	Partial evidence “Schultz & Williams is a national consulting firm dedicated to helping nonprofits of all types and sizes achieve financial stability, meet organizational goals, and support greater…” Source: RevenueBase Database · checked Sep 3, 2026
22	Pyrovio	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 3, 2026	51-200	80 contacts →
	Indirect evidence “We translate strategy into long-term, sustainable, and measurable results by using our three-tier approach: Strategy, Capability and Execution.” Source: RevenueBase Database · checked Sep 3, 2026
23	The Cloudburst Group	Indirect evidence	Landover, MD, United StatesHQ checked Sep 3, 2026	51-200	80 contacts →
	Indirect evidence “At The Cloudburst Group, our mission is to improve programs that benefit socially and economically disadvantaged persons in the U.S.” Source: RevenueBase Database · checked Sep 3, 2026
24	Nationswell	Partial evidence	NY, United StatesHQ checked Sep 3, 2026	11-50	80 contacts →
	Partial evidence “NationSwell is the only membership community for senior impact leaders that combines full-service advisory support, award-winning storytelling, and a curated network of…” Source: RevenueBase Database · checked Sep 3, 2026
25	S.I.R	Indirect evidence	Richmond, VA, United StatesHQ checked Sep 3, 2026	11-50	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 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: impact measurement consulting firms. 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 impact measurement consulting firms.
Partial evidence: Its own public description names part of impact measurement consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name impact measurement consulting firms. 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 2,470 impact measurement consulting firms based in the United States

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Impact measurement consulting firms based in the United States at a glance

As of Sep 3, 2026

28.6%Verified-email coverage

37.4%Mobile-number coverage

8.0Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · New York

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

2,106

11-50

313

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

43231–60

3,10561–90

2,06290–180

62180+

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 impact measurement consulting firms, 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 “impact measurement consulting firms”. 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 impact measurement consulting firms), 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 impact measurement consulting firms, 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, 5,661 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 3, 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.

Impact measurement consulting firms 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 impact measurement consulting firms, 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 impact measurement consulting firms are there based in the United States?

RevenueBase identified 2,470 impact measurement consulting firms 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?

Bank Of The West, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most impact measurement consulting firms?

New York leads with 177 headquartered companies, followed by Washington (128) and Chicago (98).

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 5,661 verified decision-maker contacts tracked across these 2,470 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 3, 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.