Firm at a glance
Kelso & Company is a platform private equity firm founded in 1980, per its own website [S1]. The firm reports approximately $15 billion of capital invested cumulatively since inception [S1], with its most recent fund vintage dating to 2023 [S2].
What they buy
Kelso’s portfolio reflects activity across industrial, services, financial services, healthcare, and consumer sectors [S3]. The firm appears to pursue platform investments in middle-market companies, with recent acquisitions spanning communications, wealth management, and industrial services businesses [S2]. Portfolio companies include both operationally focused industrial businesses and professional services firms [S3].
Portfolio
Industrial
Armada (platform, acquired September 2023) [S3] and Inovar (platform, acquired May 2022) [S2].
Financial Services
Wellington-Altus (platform, acquired January 2026) [S2] and Pathstone (platform, acquired May 2023) [S2].
Services
Galloway (platform, acquired June 2025) [S2], WilliamsMarston (platform) [S2], and ReSource Pro (platform, acquired December 2021) [S2].
Healthcare
Valenz (platform, acquired June 2023) [S2].
Consumer
Eagle Foods (platform) [S2].
Other
Beacon Communications (platform, acquired April 2026) [S2].
Recent activity (last 24 months)
– **April 2026**: Acquired Beacon Communications [S2]
– **January 2026**: Acquired Wellington-Altus [S2]
– **August 2025**: Exited Accession Risk Management (August 13, 2025) [S2]
– **August 2025**: Exited BradyPLUS [S2]
– **June 2025**: Acquired Galloway (June 11, 2025) [S2]
How this firm fits a seller
Kelso demonstrates consistent acquisition activity, completing three platform purchases in the trailing 24 months alongside two exits [S2]. The firm’s 45-year operating history and active 2023 vintage fund suggest capacity for new transactions [S1][S2]. Sellers in industrial services, financial services, and business services sectors may find sector alignment with Kelso’s observed investment pattern [S3]. The firm’s exit activity in 2025 indicates an active portfolio management approach [S2].
Sources
[S1] https://www.kelso.com (as of 2026-01-15)
[S2] https://www.kelso.com/news (as of 2026-01-15)
[S3] https://www.kelso.com/investments (as of 2026-01-15)
Frequently asked questions
Does Kelso & Company buy industrial businesses?
Yes, per publicly available information. Kelso’s portfolio includes industrial platform companies such as Armada, acquired in September 2023, and Inovar, acquired in May 2022 [S3][S2]. Industrial represents one of several sectors where the firm has demonstrated investment activity.
What companies has Kelso & Company acquired recently?
Recent acquisitions include Beacon Communications in April 2026, Wellington-Altus in January 2026, and Galloway in June 2025 [S2]. These transactions span communications, financial services, and business services sectors.
Where is Kelso & Company based and how big is the firm?
Kelso reports approximately $15 billion of capital invested cumulatively since its founding in 1980 [S1]. The firm’s most recent fund vintage dates to 2023 [S2]. Specific office location details were not surfaced in publicly available materials reviewed.
Is Kelso & Company still actively acquiring?
Yes, per recent transaction history. Kelso completed three platform acquisitions in the last 24 months, most recently acquiring Beacon Communications in April 2026 and Wellington-Altus in January 2026 [S2].
This profile is maintained by CT Acquisitions as an independent third-party reference. CT Acquisitions is not affiliated with, endorsed by, or a representative of the firm profiled. All facts sourced from publicly available materials as of the dates cited.