Company lists · Data refreshed September 2026

Top 25 Transaction support consulting firms based in Boston, United States

Name: Transaction support 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 29, 2026 67 companies tracked

RevenueBase identified 67 company matches for transaction support consulting firms associated with Boston, United States as of September 2026 and tracks 2,732 professional contacts across them, including 1,678 with verified work emails. Across the United States, New York is the largest hub for this category (472 companies); Boston has 67.

This list covers company matches for transaction support 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 29, 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 29, 2026 How this list was built

67Companies

2,732Contacts tracked

1,678Verified emails

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The 25 largest transaction support consulting firms based in Boston, United States

Ranked by team size

Top 25 of 67 company matches for transaction support consulting firms based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	CFGI	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	1,063 contacts →
	Exact match “As a leading global accounting and business advisory firm, CFGI provides solutions to solve clients’ most complex problems, without the restrictions created by auditor…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Capstone Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	51-200	276 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Williamsmarston	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	201-500	259 contacts →
	Exact match “WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Investor Group Services IGS	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5	Progress Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	110 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	London Economics International LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	67 contacts →
	Exact match “London Economics International LLC (“LEI”) is a global economic, financial, and strategic advisory professional services firm specializing in energy and infrastructure.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Provident Healthcare Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	58 contacts →
	Exact match “Provident is the leading investment banking firm specializing in merger and acquisition advisory, strategic planning, and capital formation for middle-market and emerging growth…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Versailles Group, LTD	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	49 contacts →
	Exact match “Founded in 1987, Versailles Group is a boutique investment banking firm specializing in mergers, acquisitions, divestitures, private placements, and fairness opinions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Floyd Advisory LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	42 contacts →
	Exact match “FLOYD ADVISORY is a consulting firm providing financial and accounting expertise in areas of SEC reporting, transaction advisory, investigations and compliance, valuation and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Fairmont Consulting Group	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
11	Covington Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	36 contacts →
	Exact match “Covington Associates is an investment banking firm offering advisory services in the areas of M&A, capital raising, strategic advisory, fairness opinions, and valuations to…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	BOWEN	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	32 contacts →
	Exact match “Bowen partners with growth tech companies to drive value creation within the innovation economy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Bellmark Partners, LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	20 contacts →
	Exact match “BellMark Partners, LLC is an independent investment bank that provides M&A advisory and investment banking services to middle market companies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Highland Strategy Group	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	19 contacts →
	Exact match “Highland Strategy Group is a consulting firm that provides strategic support and transaction advisory services to private equity firms, management teams, and investment banks.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	C.W. Downer & CO	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	201-500	17 contacts →
	Exact match “C.W.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Tully & Holland	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	15 contacts →
	Exact match “Tully & Holland is one of Boston’s most active independently owned investment banking firms.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Colchester Partners LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	14 contacts →
	Exact match “Colchester Partners is an investment banking and strategic advisory firm serving the needs of investment management organizations and their professionals since 2002.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Dunn Rush & Co. LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1-10	13 contacts →
	Exact match “Dunn Rush & Co: The Business Owner's Investment Bank Dunn Rush & Co.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Roundtable Strategy Advisors	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	51-200	13 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Fulcrum Consulting Group	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1-10	12 contacts →
	Exact match “Fulcrum Consulting Group is a practitioner-led management consulting firm that works with private equity and corporate executives to inform and support our clients in their…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Kaufman & Company, LLC	Exact match	Boston, United StatesHQ recorded Sep 29, 2026	1-10	8 contacts →
	Exact match “Founded in 1978, Kaufman & Company is a boutique investment bank focused on providing M&A advisory and private placement services to middle and emerging market companies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Carlisle & Company, LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	51-200	7 contacts →
	Exact match “Carlisle is a member of Ducker Carlisle, a global consulting and M&A advisory firm with an unrivalled continuum of insights, benchmarking and strategy solutions that optimize…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Consilium Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	11-50	7 contacts →
	Exact match “Founded in Consilium Partners is a Boston-based investment banking firm providing merger and acquisition advisory and capital raising services to middle market and emerging growth…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Capital Connect Brokered By EXP Commercial	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1-10	5 contacts →
	Exact match “Capital Connect Brokered by eXp Commercial is a Business Brokerage and Commercial Real Estate firm specializing in Mergers and Acquisitions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	AZL Capital Advisors, LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “Boutique M&A advisory and consulting firm” Recorded in the RevenueBase company graph · Sep 29, 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 “transaction support 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 67 transaction support consulting firms based in Boston, United States

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Transaction support consulting firms based in Boston, United States at a glance

As of Sep 29, 2026

61.4%Verified-email coverage

40.8Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 67 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 “transaction support 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 1,678 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 29, 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.

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

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

RevenueBase identified 67 company matches for transaction support 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?

CFGI 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 transaction support consulting firms?

New York leads the United States with 472 company records, followed by Chicago (143) and Atlanta (110). Boston has 67.

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 1,678 professional contacts with verified work emails tracked across these 67 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 29, 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.