Company lists · Data refreshed September 2026
Top 24 Lower middle market private equity companies based in Seattle, United States
RevenueBase identified 44 lower middle market private equity companies headquartered in Seattle, United States as of September 2026 and tracks 355 professional contacts across them, including 150 with verified work emails. Across the United States, New York is the largest hub for this category (937 companies); Seattle has 44.
This list covers lower middle market private equity companies headquartered in Seattle, 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 28, 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.
The 24 largest lower middle market private equity companies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 151 contacts → | ||||
Indirect evidence “Since 1991, Frazier Healthcare Partners leverages the experience of its team of investment professionals, Center of Excellence, Senior Advisors and Executives in Residence to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 33 contacts → | ||||
Indirect evidence “We are a diversified company that is investing for the future.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 29 contacts → | ||||
Strong evidence “Rainier Partners is a private equity firm rooted in the Pacific Northwest that invests in businesses in the lower middle market, primarily in the Western US and Canada.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 12 contacts → | ||||
Strong evidence “Based in Seattle, Pike Street Capital is a private equity firm focused on lower middle market growth buyouts.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 12 contacts → | ||||
Partial evidence “Manzanita Capital invests in entrepreneurs and emerging brands who are poised to enter new markets.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 8 contacts → | ||||
Strong evidence “Columbia River Partners (CRP) is a private investment firm integrating private equity, venture capital and special situations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 8 contacts → | ||||
Partial evidence “Archon Capital Management LLC ("Archon") was established in 2004 by Constantinos Christofilis as a privately held investment firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Strong evidence “Novelty Hill Capital is a leading middle market investment bank and financial advisory firm with expertise in mergers and acquisitions, raising capital and evaluating strategic…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Strong evidence “We are a private investment firm with a deep passion for providing excellent returns for our partners and accredited investors in the the lower middle market.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Strong evidence “Montlake Capital is a Pacific Northwest-based private equity firm with extensive investing and operating experience.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5 contacts → | ||||
Indirect evidence “Based in Seattle, Washington, Skylight Capital was formed to invest in or acquire companies in the Western U.S.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Indirect evidence “Zenith Growth Partners was established to find, acquire, and grow an outstanding business for the long term.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Partial evidence “Frontbridge Capital (“FBC”) is a private investment and advisory firm serving growth-stage companies in the innovation economy, primarily in the technology, media, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “Westward Partners is a private investment firm focused on producing attractive long-term returns through alternative asset investments.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Strong evidence “Ranch Creek Partners is a private equity investment firm focused principally on acquiring control equity positions in public and private companies in the middle market.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Strong evidence “Gaudium Capital was founded in 2018 with a focus on private equity in the technology sector.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Strong evidence “Evergreen Pacific Partners is a $700 million private equity firm with a focus on investing in outstanding middle market businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “Due West Partners is a private investment firm focused on long-term value creation through much more than capital.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Shipyard Cascade Capital is a privately-held investment firm, managing a portfolio of direct investments as well as partnerships with many leading investment managers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “Investment firm” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Curious is a long term holding company and investment firm that buys and grows software companies with empathy.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “Ackerley Partners LLC is a venture capital & private equity company based out of Seattle, Washington, United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Long-term growth capital partner helping field-service operators scale” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Graham Street Capital seeks to acquire and actively manage small to mid-sized businesses in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: lower middle market private equity companies. 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 lower middle market private equity companies.
- Partial evidence
- Its own public description names part of lower middle market private equity companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name lower middle market private equity companies. 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 24 of 44 lower middle market private equity companies based in Seattle, United States
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Lower middle market private equity companies based in Seattle, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 44 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 lower middle market private equity companies, 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 Seattle, United States whose own description of what they do matches “lower middle market private equity companies”. 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 lower middle market private equity companies), 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 lower middle market private equity companies, and records with no verified work email. Companies headquartered outside Seattle 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, 150 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 28, 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.
Lower middle market private equity companies by metro in the United States
- Lower middle market private equity companies in New York937
- Lower middle market private equity companies in Chicago323
- Lower middle market private equity companies in Dallas281
- Lower middle market private equity companies in Los Angeles227
- Lower middle market private equity companies in Houston185
- Lower middle market private equity companies in Boston184
- Lower middle market private equity companies in Austin171
- Lower middle market private equity companies in San Francisco160
- Lower middle market private equity companies in Miami157
- Lower middle market private equity companies in Atlanta139
- Lower middle market private equity companies in Denver105
- Lower middle market private equity companies in Charlotte86
- Lower middle market private equity companies in Washington60
- Lower middle market private equity companies in Nashville52
- Lower middle market private equity companies in San Diego51
- Lower middle market private equity companies in Tampa51
- Lower middle market private equity companies in Newport Beach47
- Lower middle market private equity companies in Minneapolis46
- Lower middle market private equity companies in Cleveland40
- Lower middle market private equity companies in Philadelphia40
- Lower middle market private equity companies in Salt Lake City37
- Lower middle market private equity companies in Birmingham36
- Lower middle market private equity companies in Phoenix33
- Lower middle market private equity companies in Boca Raton32
- Lower middle market private equity companies in West Palm Beach31
- Lower middle market private equity companies in Beverly Hills30
- Lower middle market private equity companies in New York City30
- Lower middle market private equity companies in Santa Monica30
- Lower middle market private equity companies in Scottsdale30
- Lower middle market private equity companies in Cincinnati29
- Lower middle market private equity companies in Stamford27
- Lower middle market private equity companies in Fort Lauderdale26
- Lower middle market private equity companies in Orlando26
- Lower middle market private equity companies in Pittsburgh26
- Lower middle market private equity companies in Indianapolis25
- Lower middle market private equity companies in Las Vegas25
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 lower middle market private equity companies, 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 lower middle market private equity companies are there based in Seattle, United States?
RevenueBase identified 44 lower middle market private equity companies headquartered in Seattle, 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?
Frazier Healthcare Partners, headquartered in Seattle, tops this list with the largest team on record.
Which city in the United States has the most lower middle market private equity companies?
New York leads the United States with 937 headquartered companies, followed by Chicago (323) and Dallas (281). Seattle has 44.
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 150 verified decision-maker contacts tracked across these 44 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 28, 2026.
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Lower middle market private equity companies by geography
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- Lower middle market private equity companies based in Montreal, Canada
- Lower middle market private equity companies based in Toronto, Canada
- Lower middle market private equity companies based in Vancouver, Canada
- Lower middle market private equity companies based in Paris, France
- Lower middle market private equity companies based in Berlin, Germany
- Lower middle market private equity companies based in Munich, Germany
- Lower middle market private equity companies based in Hong Kong, Hong Kong
- Lower middle market private equity companies based in Mumbai, India
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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