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Company lists · Data refreshed September 2026

Top 25 Business advisory and consulting firms based in Boston, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 419 companies tracked

RevenueBase identified 419 business advisory and consulting firms headquartered in Boston, United States as of September 2026 and tracks 71,155 professional contacts across them, including 31,650 with verified work emails. New York is the largest hub.

This list covers business advisory and 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
419Companies
71,155Contacts tracked
31,650Verified emails
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The 25 largest business advisory and consulting firms based in Boston, United States

Ranked by team size
Top 25 of 419 business advisory and 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 business advisory and 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
Bain & Company
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202610001+21,689 contacts →

Indirect evidence

“Bain & Company is a global consultancy that helps the world’s most ambitious change makers define the future.”

Source: RevenueBase Database · checked Sep 23, 2026
3
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
4
Charles River Associates
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 20261,001-5,0001,479 contacts →

Partial evidence

“Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.”

Source: RevenueBase Database · checked Sep 23, 2026
5
CFGI
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 2026501-1,0001,063 contacts →

Partial evidence

“As a leading global accounting and business advisory firm, CFGI provides solutions to solve clients’ most complex problems, without the restrictions created by auditor…”

Source: RevenueBase Database · checked Sep 23, 2026
6
Wolf & Company, P.C
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 2026201-500558 contacts →

Indirect evidence

“Wolf & Company P.C.”

Source: RevenueBase Database · checked Sep 23, 2026
7
Drummond Advisors
Strong evidenceBoston, MA, United StatesHQ checked Sep 23, 2026201-500322 contacts →

Strong evidence

“Drummond Advisors provides global consulting services to companies focusing on accounting, tax, legal and business development.”

Source: RevenueBase Database · checked Sep 23, 2026
8
Capstone Partners
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-200276 contacts →

Partial evidence

“For over 20 years, Capstone Partners has been a trusted advisor to leading middle market companies, offering a fully integrated range of investment banking and financial advisory…”

Source: RevenueBase Database · checked Sep 23, 2026
9
Williamsmarston
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 2026201-500259 contacts →

Partial evidence

“WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.”

Source: RevenueBase Database · checked Sep 23, 2026
10
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
11
Progress Partners
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-50110 contacts →

Partial evidence

“Progress Partners is a Boston and New York-based corporate advisory firm that works with buyers and sellers of emerging growth companies to complete M&A or private placement…”

Source: RevenueBase Database · checked Sep 23, 2026
12
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
13
Onboard Partners
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20089 contacts →

Indirect evidence

“Onboard Partners is an accomplished team of growth experts with broad industry experience.”

Source: RevenueBase Database · checked Sep 23, 2026
14
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
15
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
16
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
17
Tyton Partners
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20054 contacts →

Partial evidence

“Tyton Partners is the leading provider of investment banking and strategy consulting services to the global knowledge sector.”

Source: RevenueBase Database · checked Sep 23, 2026
18
Ilead Group
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20054 contacts →

Partial evidence

“iLEAD Group is a professional services group that has incubated includes several business divisions, including:* iLEAD Consulting is a business consulting and IT development firm…”

Source: RevenueBase Database · checked Sep 23, 2026
19
Versailles Group, LTD
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5049 contacts →

Indirect evidence

“Founded in 1987, Versailles Group is a boutique investment banking firm specializing in mergers, acquisitions, divestitures, private placements, and fairness opinions.”

Source: RevenueBase Database · checked Sep 23, 2026
20
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
21
Floyd Advisory LLC
Strong evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5042 contacts →

Strong evidence

“FLOYD ADVISORY is a consulting firm providing financial and accounting expertise in areas of SEC reporting, transaction advisory, investigations and compliance, valuation and…”

Source: RevenueBase Database · checked Sep 23, 2026
22
Credfino
Partial evidenceBoston, United StatesHQ checked Sep 23, 202611-5039 contacts →

Partial evidence

“Credfino helps Accounting/Tax Firms grow and scale through remote staffing and consulting.”

Source: RevenueBase Database · checked Sep 23, 2026
23
Fairmont Consulting Group
Strong evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5037 contacts →

Strong 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
24
Raphael And Raphael LLP
Indirect evidenceBoston, MA, United StatesHQ checked Sep 23, 202611-5035 contacts →

Indirect evidence

“Much has changed since Helmer Raphael founded Raphael and Raphael more than 60 years ago.”

Source: RevenueBase Database · checked Sep 23, 2026
25
Advanced Management Services, Inc. AMS
Partial evidenceBoston, MA, United StatesHQ checked Sep 23, 202651-20027 contacts →

Partial evidence

“Delivering results and business performance by integrating Management Consulting Solutions, Professional Development Training Courses, and Executive & Leadership Coaching.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 419 business advisory and 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 31,650 reachable decision-makers.

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Business advisory and consulting firms based in Boston, United States at a glance

As of Sep 23, 2026
44.5%Verified-email coverage
169.8Average contacts per company
1-10Median size (employees)
452.3%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
311
11-50
72
51-200
24
201-500
6
501-1,000
1
1,001-5,000
2
10001+
3

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 419 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 business advisory and 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 “business advisory and 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 business advisory and 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 business advisory and 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, 31,650 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.

Business advisory and 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 business advisory and 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 business advisory and consulting firms are there based in Boston, United States?

RevenueBase identified 419 business advisory and 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 business advisory and consulting firms?

New York leads with 1895 headquartered companies, followed by Atlanta (839) and Chicago (826).

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 31,650 verified decision-maker contacts tracked across these 419 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.

Ready to reach these companies? Verified emails and direct dials for all 419 business advisory and consulting firms based in Boston, United States. Start with a free account, no credit card.

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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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