Company lists · Data refreshed September 2026

Top 25 Portfolio company consulting firms based in Boston, United States

Name: Portfolio company 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 154 companies tracked

RevenueBase identified 154 portfolio company consulting firms headquartered in Boston, United States as of September 2026 and tracks 7,742 professional contacts across them, including 3,562 with verified work emails. Across the United States, New York is the largest hub for this category (801 companies); Boston has 154.

This list covers portfolio company 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 29, 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 29, 2026 86% judged on-target in blind review

154Companies

7,742Contacts tracked

3,562Verified emails

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The 25 largest portfolio company consulting firms based in Boston, United States

Ranked by team size

Top 25 of 154 portfolio company consulting firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to portfolio company 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	L.E.K. Consulting	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,093 contacts →
	Indirect evidence “L.E.K.” Source: RevenueBase Database · checked Sep 29, 2026
2	Advent	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	501-1,000	1,025 contacts →
	Indirect evidence “Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.” Source: RevenueBase Database · checked Sep 29, 2026
3	TA Associates	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	201-500	881 contacts →
	Indirect evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 29, 2026
4	Capstone Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	276 contacts →
	Indirect 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 29, 2026
5	Investor Group Services IGS	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	168 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 29, 2026
6	Progress Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	110 contacts →
	Indirect 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 29, 2026
7	STAX	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	201-500	78 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 29, 2026
8	Parthenon Capital	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	68 contacts →
	Indirect evidence “Parthenon Capital Partners (“Parthenon” or “Parthenon Capital”) is a private equity firm that partners with and invests in management teams and their companies.” Source: RevenueBase Database · checked Sep 29, 2026
9	Versailles Group, LTD	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	49 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 29, 2026
10	Floyd Advisory LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	42 contacts →
	Partial 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 29, 2026
11	Fairmont Consulting Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	37 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 29, 2026
12	Solamere Capital, LLC	Indirect evidence	Boston, United StatesHQ checked Sep 29, 2026	11-50	37 contacts →
	Indirect evidence “Founded in 2008, Solamere is a multi-strategy private equity firm with offices in Boston and New York City.” Source: RevenueBase Database · checked Sep 29, 2026
13	Conjoin Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	201-500	36 contacts →
	Indirect evidence “The ConJoin Group aligns with Venture Capital and Private Equity firms by investing our own capital,$250M in committed funds, and delivering a suite of services designed to…” Source: RevenueBase Database · checked Sep 29, 2026
14	BOWEN	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	32 contacts →
	Indirect evidence “Bowen partners with growth tech companies to drive value creation within the innovation economy.” Source: RevenueBase Database · checked Sep 29, 2026
15	JMH Capital Partners, LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1-10	27 contacts →
	Indirect evidence “JMH CAPITAL PARTNERS is a generalist private equity firm that acquires profitable businesses in North America with revenues of $5 million to $100 million.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ethos Capital	Indirect evidence	Boston, United StatesHQ checked Sep 29, 2026	11-50	25 contacts →
	Indirect evidence “Ethos Capital is an operations-focused investment firm that partners with information service companies.” Source: RevenueBase Database · checked Sep 29, 2026
17	Atlantic-Acm	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	24 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 29, 2026
18	Denneen & Company	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Partial evidence “Denneen & Company is a growth strategy consulting firm that has been helping Fortune 100, private and private equity owned companies, and premier not-for-profit institutions find…” Source: RevenueBase Database · checked Sep 29, 2026
19	Dubin Clark & Company, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Established in 1984, Dubin Clark is a private equity firm that focuses on strategic and operational value creation and seeks to acquire interest in Branded Niche Manufacturing…” Source: RevenueBase Database · checked Sep 29, 2026
20	Vardis	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Vardis is a specialist Private Equity global search firm, with offices in London, Boston, Frankfurt, New York, Dallas and Hong Kong.” Source: RevenueBase Database · checked Sep 29, 2026
21	Highland Strategy Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	19 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 29, 2026
22	Arnovia	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “We provide Transaction and Growth Strategy services to private equity investors, corporations, and hedge funds lenders across their core markets.” Source: RevenueBase Database · checked Sep 29, 2026
23	Tully & Holland	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “Tully & Holland is one of Boston’s most active independently owned investment banking firms.” Source: RevenueBase Database · checked Sep 29, 2026
24	Creo Advisors LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 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 29, 2026
25	Roundtable Strategy Advisors	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	13 contacts →
	Partial 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 29, 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: portfolio company consulting firms. 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 portfolio company consulting firms.
Partial evidence: Its own public description names part of portfolio company consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name portfolio company consulting firms. 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 154 portfolio company consulting firms based in Boston, United States

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Portfolio company consulting firms based in Boston, United States at a glance

As of Sep 29, 2026

46.0%Verified-email coverage

50.3Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

51-200

201-500

501-1,000

1,001-5,000

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 154 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 portfolio company 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 “portfolio company 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 portfolio company 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 portfolio company 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, 3,562 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 29, 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.

Portfolio company 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 portfolio company 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 portfolio company consulting firms are there based in Boston, United States?

RevenueBase identified 154 portfolio company 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?

L.E.K. Consulting, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most portfolio company consulting firms?

New York leads the United States with 801 headquartered companies, followed by Chicago (313) and Los Angeles (242). Boston has 154.

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 3,562 verified decision-maker contacts tracked across these 154 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 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 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.