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Company lists · Data refreshed September 2026

Top 25 Boutique consulting firms based in Boston, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 391 companies tracked

RevenueBase identified 391 boutique consulting firms headquartered in Boston, United States as of September 2026 and tracks 44,961 professional contacts across them, including 16,283 with verified work emails. New York is the largest hub.

This list covers boutique consulting firms 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 23, 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 23, 2026 86% judged on-target in blind review
391Companies
44,961Contacts tracked
16,283Verified emails
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The 25 largest boutique consulting firms based in Boston, United States

Ranked by team size
Top 25 of 391 boutique consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to boutique 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
Boston Consulting Group BCG
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202610001+38,730 contacts →

Partial 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 23, 2026
2
L.E.K. Consulting
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 20261,001-5,0004,093 contacts →

Indirect evidence

“L.E.K.”

Source: RevenueBase Database · checked Sep 23, 2026
3
Investor Group Services IGS
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-200168 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 23, 2026
4
Vantage Partners
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-200122 contacts →

Partial evidence

“Vantage Partners is a consulting and training firm that helps companies innovate more quickly, execute with greater discipline, and collaborate more effectively, for sustained…”

Source: RevenueBase Database · checked Sep 23, 2026
5
Walter Shuffain
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20099 contacts →

Indirect evidence

“Walter Shuffain is known for its commitment to helping private businesses and the affluent reach their ideals in the Boston and New England area.”

Source: RevenueBase Database · checked Sep 23, 2026
6
Hawkpartners
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20084 contacts →

Partial evidence

“HawkPartners is a marketing consulting and strategic insights firm.”

Source: RevenueBase Database · checked Sep 23, 2026
7
STAX
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 2026201-50078 contacts →

Partial evidence

“Stax is a global management consulting firm serving corporate and private equity clients across a broad range of industries including software/technology, healthcare, business…”

Source: RevenueBase Database · checked Sep 23, 2026
8
Next Move Strategy Consulting
Partial evidenceBoston, NY, United StatesHQ checked Sep 23, 202651-20077 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 23, 2026
9
Boston Analytics
Partial evidenceBoston, United StatesHQ checked Sep 23, 202651-20063 contacts →

Partial 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 23, 2026
10
Banyanglobal Family Business Advisors
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20043 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 23, 2026
11
Fairmont Consulting Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5037 contacts →

Partial 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 23, 2026
12
LABUR
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5037 contacts →

Indirect evidence

“LABUR brings technology and business together through sound advice, skillful delivery, and selective leadership search.”

Source: RevenueBase Database · checked Sep 23, 2026
13
Olmstead Associates
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20037 contacts →

Partial evidence

“Raising the Operational Agility of the Investment Management community using a uniquely data-centric consulting approach.”

Source: RevenueBase Database · checked Sep 23, 2026
14
Clearrock, INC
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5024 contacts →

Indirect evidence

“ClearRock is a true partner in addressing the complex needs of businesses and individuals throughout all phases of the employment lifecycle: selection, leadership development, and…”

Source: RevenueBase Database · checked Sep 23, 2026
15
Atlantic-Acm
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5024 contacts →

Indirect evidence

“Founded in 1991, ATLANTIC-ACM, is a leading strategic advisory firm to the telecom and technology sectors.”

Source: RevenueBase Database · checked Sep 23, 2026
16
Alliance Consulting Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5024 contacts →

Partial evidence

“Alliance Consulting Group is a strategy consulting firm located in Boston, Massachusetts.”

Source: RevenueBase Database · checked Sep 23, 2026
17
Inspire INC
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 2026201-50022 contacts →

Partial 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 23, 2026
18
Highland Strategy Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5019 contacts →

Partial evidence

“Highland Strategy Group is a consulting firm that provides strategic support and transaction advisory services to private equity firms, management teams, and investment banks.”

Source: RevenueBase Database · checked Sep 23, 2026
19
Archway Research Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5017 contacts →

Partial evidence

“Archway Research is a financial and management consulting firm with over 25 years of experience providing exceptional professional services to law firms, their clients, and other…”

Source: RevenueBase Database · checked Sep 23, 2026
20
NEW Markets Advisors
Strong evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5017 contacts →

Strong 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 23, 2026
21
Welsh Consulting
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5017 contacts →

Partial evidence

“Welsh Consulting, located in the heart of Boston’s Financial District, is an energetic IT consulting firm providing IT strategy, support and project-related services to small and…”

Source: RevenueBase Database · checked Sep 23, 2026
22
Mello Consulting Group
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5016 contacts →

Indirect evidence

“High impact solutions for the office of the CFO.”

Source: RevenueBase Database · checked Sep 23, 2026
23
Nichols Management Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5016 contacts →

Partial evidence

“NMG is the leading management consulting firm for the diagnostic medicine industry.”

Source: RevenueBase Database · checked Sep 23, 2026
24
Revby LLC
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5015 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 23, 2026
25
Nevins Consulting, INC
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5014 contacts →

Partial evidence

“Since 2003, Nevins Consulting has supported leaders in accelerating the development and effectiveness of their people, teams, and organizations.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 391 boutique consulting firms based in Boston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 16,283 reachable decision-makers.

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

As of Sep 23, 2026
36.2%Verified-email coverage
115.0Average contacts per company
1-10Median size (employees)
392.6%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
298
11-50
68
51-200
19
201-500
3
1,001-5,000
1
10001+
2

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 391 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 boutique 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 Boston, United States whose own description of what they do matches “boutique 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 boutique 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 boutique consulting firms, 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, 16,283 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 23, 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.

Boutique consulting firms 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 boutique 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 boutique consulting firms are there based in Boston, United States?

RevenueBase identified 391 boutique consulting firms 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 has the most boutique consulting firms?

New York leads with 1535 headquartered companies, followed by Atlanta (772) and Chicago (769).

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 16,283 verified decision-maker contacts tracked across these 391 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 23, 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.

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