About Welsh, Carson, Anderson & Stowe
Welsh, Carson, Anderson & Stowe is a private equity firm founded in 1979. It is primarily based in New York City, United States. As of Oct 2026, Welsh, Carson, Anderson & Stowe is an active investor with a portfolio of 79 companies, comprising 79 funding rounds and 41 acquisitions. In the last 12 months, it has participated in 2 funding rounds and has made 1 acquisition. The firm primarily invests in companies based in United States and Canada. Its portfolio is spread across a wide range of sectors from Healthcare to Enterprise Applications. Its latest investment was a $***** Series D round in OpenAI Deploy Co. on May 11, 2026 which also saw participation from TPG, Advent International and other investors.
A lot of funds co-invest with Welsh, Carson, Anderson & Stowe, with names like Kaiser Permanente Ventures sharing a substantial percentage of its portfolio.
Welsh, Carson, Anderson & Stowe has a team of 82 people, including 37 partners.
Key Metrics
Founded Year
1979
Location
New York City, United States
Portfolio Sectors
Portfolio Locations
Acquisition Deals
Welsh, Carson, Anderson & Stowe's Portfolio
Welsh, Carson, Anderson & Stowe has a portfolio of 79 companies. They have invested in a total of 79 companies. Their most recent investment was in OpenAI Deploy Co. (Series D round) on May 11, 2026. Here are the most recent investments by Welsh, Carson, Anderson & Stowe:Date | Company | Round | Amount | Co-Investors |
|---|---|---|---|---|
May 11, 2026 | Series D | 2337 | ||
Feb 26, 2026 | Series D | 1914 | ||
Jul 08, 2025 | PE | 8462 | - | |
Feb 10, 2023 | PE | 8033 | - |
Welsh, Carson, Anderson & Stowe has acquired 41 companies. Their most recent acquisition was of Select Medical on Mar 03, 2026. Here are the most recent acquisitions by Welsh, Carson, Anderson & Stowe:
Acquisition Date | Company | Short Description | Total Funding | Founded Year |
|---|---|---|---|---|
Mar 03, 2026 | Chain of multispeciality hospitals | - | 1996 | |
Feb 22, 2024 | Provider of technology and services to improve patient access to therapy | - | 2009 | |
Jan 18, 2024 | Provider of securities finance technology and data solutions | - | 2001 | |
Mar 02, 2022 | Provider of health plans | - | 2001 |
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Here is the portfolio snapshot of Welsh, Carson, Anderson & Stowe:
Investments by Year
The maximum number of investments were made in 2017
Acquisitions by Year
The maximum number of acquisitions were made in 2018
Portfolio by Location
Companies are primarily in United States and Canada
Portfolio by Sector
Companies are primarily in Healthcare
Team profile of Welsh, Carson, Anderson & Stowe
Welsh, Carson, Anderson & Stowe has a team of 82 members including 37 Partners and 12 Principals located in United States. Welsh, Carson, Anderson & Stowe's team sits on the board of 1 company.Here is a list of top team members in Welsh, Carson, Anderson & Stowe:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | New York City | - | - | |
Partner | San Francisco | - | - | |
Partner | San Francisco | - | ||
Partner | San Francisco | - | - | |
Partner | New York City | - | - | |
Partner | New York City | - | - | |
Partner | New York City | - | - | |
Partner | Ponte Vedra Beach | - | - | |
Partner | New York City | - | - | |
Partner | New York City | - | - | |
Partner | New York City | - |
Co-investors of Welsh, Carson, Anderson & Stowe
Over the past 47 years, 24 investors have co-invested in Welsh, Carson, Anderson & Stowe's portfolio companies.
- Top Co-investors of Welsh, Carson, Anderson & Stowe: 24 investors entered a company along with Welsh, Carson, Anderson & Stowe. These include investors like Kaiser Permanente Ventures (1 company).
Welsh, Carson, Anderson & Stowe News
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Select Medical Holdings Corporation Announces Board Approval of Transaction with WCAS...Sina•Jun 27, 2026•Select Medical, Welsh, Carson, Anderson & Stowe
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Select Medical Holdings Corporation Stockholders Approve Acquisition by Consortium Led by Robert A. Ortenzio and Martin F. JacksonPR Newswire•Jun 27, 2026•Select Medical, Welsh, Carson, Anderson & Stowe
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Select Medical Holdings Corporation Announces Expiration of Hart-Scott-Rodino Waiting PeriodPR Newswire•Apr 28, 2026•Select Medical, Welsh, Carson, Anderson & Stowe
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Honest Health Raises $140M, Plans Market and Partnership ExpansionsNashville Post•Feb 26, 2026•K2 HealthVentures, Rubicon Founders, NewSpring, Honest Health and 3 others
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Lumexa Imaging Nasdaq IPO to Raise $500 Million at $1.9 Billion Valuation in December 2025Caproasia•Dec 09, 2025•Lumexaimaging, Welsh, Carson, Anderson & Stowe
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Welsh Carson-backed Lumexa Imaging reveals narrower loss in US IPO filingReuters•Nov 18, 2025•Lumexaimaging, Welsh, Carson, Anderson & Stowe
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Welsh, Carson, Anderson & Stowe Welcomes Maureen Ladouceur as an Operating PartnerPR Newswire•Sep 30, 2025•Welsh, Carson, Anderson & Stowe
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Welsh, Carson, Anderson & Stowe Welcomes Gene Lockhart as Operating PartnerPR Newswire•Sep 16, 2025•Welsh, Carson, Anderson & Stowe, Mastercard
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Welsh, Carson, Anderson & Stowe Appoints Brian Kane as Senior AdvisorPR Newswire•Jul 09, 2025•Welsh, Carson, Anderson & Stowe
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WCAS Announces Strategic Growth Investment in AIA Contract DocumentsPR Newswire•Jul 08, 2025•Welsh, Carson, Anderson & Stowe, AIA Contract Documents, AIA, True Wind
