Company lists · Data refreshed September 2026

Top 25 Lower middle market equity firms based in Boston, United States

RevenueBase identified 70 company matches for lower middle market equity firms associated with Boston, United States as of September 2026 and tracks 3,389 professional contacts across them, including 1,872 with verified work emails. Across the United States, New York is the largest hub for this category (410 companies); Boston has 70.

This list covers company matches for lower middle market equity 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 20, 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 20, 2026 How this list was built
70Companies
3,389Contacts tracked
1,872Verified emails
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The 25 largest lower middle market equity firms based in Boston, United States

Ranked by team size
Top 25 of 70 company matches for lower middle market equity firms based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261,001-5,0002,068 contacts →

Exact match

“Founded in 1984, Bain Capital is one of the world’s leading private investment firms.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-200513 contacts →

Exact match

“PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-500255 contacts →

Exact match

“Berkshire Partners is a 100% employee-owned, multi-sector specialist investor in private and public equity, with a focus on North American-based, middle-market companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“Copley Equity Partners is a private investment firm based in Boston, MA, and Denver, CO.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchBoston, United StatesHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“Founded in 2008, Solamere is a multi-strategy private equity firm with offices in Boston and New York City.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-50036 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026n/a31 contacts →

Exact match

“Union Park Capital is a private equity investment firm focused solely on lower middle-market Industrial Technology companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Sverica Capital Management LP is a leading growth-oriented lower middle market private equity firm with $2.2 billion in aggregate committed capital.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“At The Raptor Group, we source and invest in companies across various stages and asset classes, ranging from early stage to both private and public equity to funds.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Fort Point Capital is a private equity firm focused on the lower middle market in the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“M/C Partners is a private equity firm focused on small and mid-size businesses in the digital infrastructure and technology services sectors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Founded in 2004, Hastings Equity Partners is a lower middle-market private equity firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“WestView Capital Partners is a Boston-based private equity firm focused exclusively on lower middle market companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Clearhaven is a lower middle market enterprise software investor.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“Century Equity Partners focuses exclusively on making private equity investments in lower middle-market financial services companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-1015 contacts →

Exact match

“Lineage Capital is a Boston-based private equity firm which invests exclusively in owner-managed businesses.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“At Wincove, we elevate private equity through a blend of tradition and innovation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“Founded in JMC Capital Partners is a Boston-based private equity firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-1013 contacts →

Exact match

“Dunn Rush & Co: The Business Owner's Investment Bank Dunn Rush & Co.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-5012 contacts →

Exact match

“Watermill Group is a private investing firm that leads with strategy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-1012 contacts →

Exact match

“Palladin Consumer Retail Partners, previously known as Palladin Capital Group, is a Boston-based private equity firm focused primarily on consumer and retail products and services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“KSV Global is a Boston-based investment firm that takes a differentiated approach to growth equity investments in the United States, Europe, and Asia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-1010 contacts →

Exact match

“Boardwalk is a private firm that offers liquidity to small business owners who may also seek transition of day-to-day management.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 20, 20261-109 contacts →

Exact match

“Cohere Capital is a growth focused private equity firm that invests in leading middle-market businesses.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202611-509 contacts →

Exact match

“LLM Capital Partners LLC makes growth equity investments in middle market companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 70 lower middle market equity firms based in Boston, United States

See the full list, filter by size, metro and specialty, and access 1,872 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Lower middle market equity firms based in Boston, United States at a glance

As of Sep 20, 2026
55.2%Verified-email coverage
48.4Average contacts per company
1-10Median size (employees)
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
45
11-50
19
51-200
2
201-500
2
501-1,000
1
1,001-5,000
1

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 70 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 “lower middle market equity 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 1,872 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 20, 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.

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 “lower middle market equity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many lower middle market equity firms are there based in Boston, United States?

RevenueBase identified 70 company matches for lower middle market equity 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?

Bain Capital 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 lower middle market equity firms?

New York leads the United States with 410 company records, followed by Chicago (169) and Dallas (121). Boston has 70.

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 1,872 professional contacts with verified work emails tracked across these 70 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 20, 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.