Company lists · Data refreshed September 2026

Top 25 Impact consulting firms based in Boston, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 503 companies tracked

RevenueBase identified 503 company matches for impact consulting firms associated with Boston, United States as of September 2026 and tracks 72,642 professional contacts across them, including 31,995 with verified work emails. Across the United States, New York is the largest hub for this category (1,952 companies); Boston has 503.

This list covers company matches for impact consulting firms associated with Boston, United States, 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 September 30, 2026.

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 Sep 30, 2026 How this list was built

503Companies

72,642Contacts tracked

31,995Verified emails

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The 25 largest impact consulting firms based in Boston, United States

Ranked by team size

Top 25 of 503 company matches for impact consulting firms based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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	Boston Consulting Group BCG	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	10001+	38,730 contacts →
	Exact match “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Bain & Company	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	10001+	21,689 contacts →
	Exact match “Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	L.E.K. Consulting	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	4,093 contacts →
	Exact match “L.E.K.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Analysis Group	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,781 contacts →
	Exact match “Analysis Group is one of the largest international economics consulting firms, with more than 1,500 professionals across 15 offices in North America, Europe, and Asia.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Charles River Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,479 contacts →
	Exact match “Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Altman Solon	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	501-1,000	669 contacts →
	Exact match “In 2020, Altman Vilandrie & Company and Solon Management Consulting cemented a decades-long partnership across the Atlantic to form Altman Solon, the world’s largest global…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	FSG	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	517 contacts →
	Exact match “At FSG, we are a global nonprofit consulting firm committed to advancing equitable systems change.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	The Bridgespan Group	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	201-500	443 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 · Sep 30, 2026 · View company records in RevenueBase
9	Investor Group Services IGS	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	168 contacts →
	Exact match “For over 25 years, IGS has helped investors and management teams make better, faster decisions, from commercial due diligence, to growth strategy, pricing, and go-to-market…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Epam Continuum	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	128 contacts →
	Exact match “EPAM Continuum’s diverse, integrated consulting teams apply a Systems Thinking mindset to get to the heart of our clients’ increasingly complex business challenges.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Vantage Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	122 contacts →
	Exact match “Vantage Partners is a consulting and training firm that helps companies innovate more quickly, execute with greater discipline, and collaborate more effectively, for sustained…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Innosight	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	114 contacts →
	Exact match “Innosight helps enterprise leaders turn uncertainty into opportunity and thrive in a changing world.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Hawkpartners	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	84 contacts →
	Exact match “HawkPartners is a marketing consulting and strategic insights firm.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	STAX	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	201-500	78 contacts →
	Exact match “Stax is a global management consulting firm serving corporate and private equity clients across a broad range of industries including software/technology, healthcare, business…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Next Move Strategy Consulting	Exact match	Boston, NY, United StatesHQ recorded Sep 30, 2026	51-200	77 contacts →
	Exact match “Next Move Strategy Consulting is a premier market research and management consulting firm that has been committed to provide strategically analysed well documented latest research…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Empower Success Corps	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	74 contacts →
	Exact match “At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Boston Analytics	Exact match	Boston, United StatesHQ recorded Sep 30, 2026	51-200	63 contacts →
	Exact match “Boston Analytics (BA) is a strategy consulting firm which serves Fortune 500 clients seeking insights from data to make critical business decisions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Tyton Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	54 contacts →
	Exact match “Tyton Partners is the leading provider of investment banking and strategy consulting services to the global knowledge sector.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Interaction Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	11-50	42 contacts →
	Exact match “Interaction Associates (IA) helps leaders and teams think more clearly, collaborate more effectively, and focus on what matters most to their customers, employees, and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	The Collaborative	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	11-50	38 contacts →
	Exact match “The Collaborative is an award-winning consulting firm with a national reputation for excellence in planning, design, and communications.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Fairmont Consulting Group	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	11-50	37 contacts →
	Exact match “Fairmont Consulting Group is a Boston-based firm focused on due diligence and strategic advisory services for clients active in aerospace, defense, government services, and the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	LABUR	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	11-50	37 contacts →
	Exact match “LABUR brings technology and business together through sound advice, skillful delivery, and selective leadership search.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Olmstead Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	37 contacts →
	Exact match “Raising the Operational Agility of the Investment Management community using a uniquely data-centric consulting approach.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Harvard Partners, LLP	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	51-200	35 contacts →
	Exact match “Harvard Partners is a management consulting firm focused on helping companies more effectively leverage their IT investment.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Boston Strategic Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 30, 2026	11-50	31 contacts →
	Exact match “Founded in 2003, Boston Strategic Partners, Inc.” Recorded in the RevenueBase company graph · Sep 30, 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 “impact consulting firms”. 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 503 impact consulting firms based in Boston, United States

See the full list, filter by size, metro and specialty, and access 31,995 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Impact consulting firms based in Boston, United States at a glance

As of Sep 30, 2026

44.0%Verified-email coverage

144.4Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

369

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 503 companies.

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.
What qualifies: Company records associated with Boston, United States whose business descriptions match “impact consulting firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 31,995 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 September 30, 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.

Impact consulting firms by metro in the United States

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 “impact consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many impact consulting firms are there based in Boston, United States?

RevenueBase identified 503 company matches for impact consulting firms associated with Boston, United States as of September 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?

Boston Consulting Group BCG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most impact consulting firms?

New York leads the United States with 1,952 company records, followed by Chicago (974) and Washington (937). Boston has 503.

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 31,995 professional contacts with verified work emails tracked across these 503 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 September 30, 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.