Company lists · Data refreshed September 2026

Top 25 Consultancy agencies based in Boston, United States

Name: Consultancy agencies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 377 companies tracked

RevenueBase identified 377 consultancy agencies headquartered in Boston, United States as of September 2026 and tracks 66,695 professional contacts across them, including 28,717 with verified work emails. Across the United States, New York is the largest hub for this category (2,033 companies); Boston has 377.

This list covers consultancy agencies headquartered in Boston, 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 24, 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 24, 2026 86% judged on-target in blind review

377Companies

66,695Contacts tracked

28,717Verified emails

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

The 25 largest consultancy agencies based in Boston, United States

Ranked by team size

Top 25 of 377 consultancy agencies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy agencies: 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	Boston Consulting Group BCG	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	10001+	38,730 contacts →
	Indirect evidence “Boston Consulting Group partners with leaders in business and society to tackle their most important challenges and capture their greatest opportunities.” Source: RevenueBase Database · checked Sep 24, 2026
2	Bain & Company	Strong evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	10001+	21,689 contacts →
	Strong evidence “Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.” Source: RevenueBase Database · checked Sep 24, 2026
3	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 24, 2026
4	Drummond Advisors	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	201-500	322 contacts →
	Indirect evidence “Drummond Advisors provides global consulting services to companies focusing on accounting, tax, legal and business development.” Source: RevenueBase Database · checked Sep 24, 2026
5	PGR Media	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	146 contacts →
	Indirect evidence “We are an independent, woman-owned, boutique media agency.” Source: RevenueBase Database · checked Sep 24, 2026
6	Allen & Gerritsen	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	132 contacts →
	Indirect evidence “A&G (Allen & Gerritsen) exists to help brands Be Unignorable.” Source: RevenueBase Database · checked Sep 24, 2026
7	Opus Regulatory INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	113 contacts →
	Indirect evidence “Opus Regulatory is a niche consulting firm headquartered in the Seaport district of Boston.” Source: RevenueBase Database · checked Sep 24, 2026
8	Hawkpartners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	84 contacts →
	Indirect evidence “HawkPartners is a marketing consulting and strategic insights firm.” Source: RevenueBase Database · checked Sep 24, 2026
9	451 Agency	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	72 contacts →
	Indirect evidence “451 Agency is an award-winning, fully integrated marketing, advertising, and communications agency that specializes in creative design, advertising, public relations, digital…” Source: RevenueBase Database · checked Sep 24, 2026
10	Boston Analytics	Indirect evidence	Boston, United StatesHQ checked Sep 24, 2026	51-200	63 contacts →
	Indirect evidence “Boston Analytics (BA) is a strategy consulting firm which serves Fortune 500 clients seeking insights from data to make critical business decisions.” Source: RevenueBase Database · checked Sep 24, 2026
11	Banyanglobal Family Business Advisors	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	43 contacts →
	Indirect evidence “At Banyan, we understand that as family business owners you face difficult choices about what’s best for both the business and the family.” Source: RevenueBase Database · checked Sep 24, 2026
12	Fairmont Consulting Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	37 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 24, 2026
13	Advanced Management Services, Inc. AMS	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	27 contacts →
	Indirect evidence “Delivering results and business performance by integrating Management Consulting Solutions, Professional Development Training Courses, and Executive & Leadership Coaching.” Source: RevenueBase Database · checked Sep 24, 2026
14	Alliance Consulting Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	24 contacts →
	Indirect evidence “Alliance Consulting Group is a strategy consulting firm located in Boston, Massachusetts.” Source: RevenueBase Database · checked Sep 24, 2026
15	Inspire INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	201-500	22 contacts →
	Indirect evidence “Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Source: RevenueBase Database · checked Sep 24, 2026
16	Pile And Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “Pile and Company is a consulting firm focused on marketing resources and relationships.” Source: RevenueBase Database · checked Sep 24, 2026
17	NEW Markets Advisors	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	17 contacts →
	Indirect evidence “Since our beginnings in 2009, New Markets Advisors has been a leading boutique consulting firm focused on the realm of innovation strategy and capabilities.” Source: RevenueBase Database · checked Sep 24, 2026
18	Revby LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	15 contacts →
	Indirect evidence “At Revby, we deliver outcome-oriented technical assistance (TA) that helps underserved small business communities stabilize, grow, and thrive.” Source: RevenueBase Database · checked Sep 24, 2026
19	Creo Advisors LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	13 contacts →
	Indirect evidence “Your Partner in Value Creation We partner with ambitious Boards, Private Equity Firms, and Management teams seeking to achieve superior performance.” Source: RevenueBase Database · checked Sep 24, 2026
20	Roundtable Strategy Advisors	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	13 contacts →
	Indirect evidence “We are seasoned professionals within the consulting field and former C-Suite executives who know what it takes to get the job done efficiently and on-time.” Source: RevenueBase Database · checked Sep 24, 2026
21	Burnham Rosen Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	12 contacts →
	Indirect evidence “Burnham Rosen Group (BRG) is a global leadership training and management consulting firm that brings to its clients a multi-disciplinary approach blending business strategy…” Source: RevenueBase Database · checked Sep 24, 2026
22	Vilms Consulting, LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	1-10	12 contacts →
	Indirect evidence “Vilms Consulting provides Accounting, Advisory and Training Services.” Source: RevenueBase Database · checked Sep 24, 2026
23	Aadmi Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	11-50	12 contacts →
	Indirect evidence “Aadmi is a full-service firm committed to helping you develop a sustainable expansion strategy that will enhance your business and foster its growth.” Source: RevenueBase Database · checked Sep 24, 2026
24	Transmyt Marketing	Indirect evidence	Boston, MA, United StatesHQ checked Sep 24, 2026	51-200	10 contacts →
	Indirect evidence “We are Transmyt.” Source: RevenueBase Database · checked Sep 24, 2026
25	MB LAW Firm Consulting, LLC	Indirect evidence	Boston, United StatesHQ checked Sep 24, 2026	1-10	10 contacts →
	Indirect evidence “MB Law Firm Consulting works with small to mid-sized law firms on a project or long-term basis to identify and implement efficiencies for growth and succession.” Source: RevenueBase Database · checked Sep 24, 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: consultancy agencies. 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 consultancy agencies.
Partial evidence: Its own public description names part of consultancy agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consultancy agencies. 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 377 consultancy agencies based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,717 reachable decision-makers.

Free signup · no credit card

View the full list →

Consultancy agencies based in Boston, United States at a glance

As of Sep 24, 2026

43.1%Verified-email coverage

176.9Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

316

11-50

51-200

201-500

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 377 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 consultancy agencies, 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 Boston, United States whose own description of what they do matches “consultancy agencies”. 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 consultancy agencies), 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 consultancy agencies, and records with no verified work email. Companies headquartered outside Boston 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, 28,717 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 24, 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.

Consultancy agencies by metro in the United States

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 consultancy agencies, 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 consultancy agencies are there based in Boston, United States?

RevenueBase identified 377 consultancy agencies headquartered in Boston, 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?

Boston Consulting Group BCG, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most consultancy agencies?

New York leads the United States with 2,033 headquartered companies, followed by Los Angeles (916) and Chicago (845). Boston has 377.

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 28,717 verified decision-maker contacts tracked across these 377 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 377 consultancy agencies based in Boston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Consultancy agencies 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.