Middle market private equity firm

Kelso & Company

  • HeadquartersNew York, NY S5
  • Websitekelso.com
  • Last verifiedOctober 22, 2026

At a glance

Latest fundKelso Investment Associates XI, $3.3B (Oct 2023) S7
Deal typesPlatform, Add-on, Minority S4
GeographyNorth America S1
SectorsWealth Management, Accounting & Professional Services, Distribution, Industrial & Manufacturing, Consumer & Food, IT Services & MSP

What Kelso & Company buys

Kelso & Company is a New York private equity firm that has made North American middle-market buyouts since 1980. It was founded on the ideas of Louis Kelso, inventor of the employee stock ownership plan. It says it has raised more than $17 billion across 11 funds and made more than 140 investments. Current holdings cluster in financial and professional services (wealth managers Pathstone, Savant and Wellington-Altus, and advisory firms J.S. Held and WilliamsMarston), distribution (BradyPLUS, Ferraro Foods, Novvia and BDI), consumer brands, industrials and business services such as digital engineering firm Bridgenext.

Kelso mostly buys control but also takes minority stakes, such as its 2025 deal for 25% of Wellington-Altus at nearly C$400 million. Fund XI closed at $3.25 billion in 2023, and Kelso's own people supply about 15% of the capital in its recent funds. It publishes no revenue or EBITDA range. Smaller companies usually meet Kelso as add-ons, as Aaron Packaging's distribution business did with Novvia in 2025, or through partners such as the independent sponsor behind the Galloway engineering platform.

Recent deals

Announced in the 24 months before October 22, 2026.

DateCompanyTypeSectorSource
Aug 2026AscensusAnnounced a full exit through a recapitalization led by majority owner Stone Point Capital with Genstar CapitalExitSource
Aug 2026BDIFund XI investment in the global distributor of bearings, power transmission and industrial MRO products, with more than 190 locationsInvestmentDistributionSource
Apr 2026Beacon CommunicationsFund XI investment, closed April 2, in the integrator of communications, security and fire and life safety systemsInvestmentConstruction ServicesSource
Nov 2025Aaron Packaging (distribution business)Distribution business bought by Novvia Group, Kelso's packaging distributorAdd-onDistributionSource
Oct 2025Wellington-AltusAgreed to buy a 25% stake in the Canadian wealth firm for nearly C$400 million, at an enterprise value above C$1.5 billionMinorityWealth ManagementSource
Aug 2025Accession Risk Management GroupCompleted the $9.83 billion sale of the insurance brokerage, formerly Risk Strategies, to Brown & BrownExitInsurance BrokerageSource
Aug 2025BradyPLUSAgreed to merge the foodservice and janitorial supplies distributor with Imperial Dade; the BradyPLUS CEO will lead the combined companyInvestmentDistributionSource
Jun 2025GallowayBought the architecture and engineering firm with independent sponsor ARA Services Partners as the base of a new acquisition platformPlatformAccounting & Professional ServicesSource

Portfolio by sector

From the firm's portfolio page S3.

Business Services

  • Beacon Communications
  • Bridgenext
  • Ferraro Foods

Consumer

  • Eagle Foods
  • Foundation Consumer Brands

Energy

  • Zenith Energy

Financial Services

  • J.S. Held
  • Newport Group
  • Pathstone
  • Premia Re
  • ReSource Pro
  • Savant
  • Somers Re
  • Wellington-Altus
  • WilliamsMarston

Healthcare

  • Valenz

Industrial

  • Armada
  • BradyPLUS
  • Inovar
  • Novvia Group

Services

  • Galloway

Greymont’s take

How Kelso & Company fits a seller

Kelso suits owners of established services and distribution businesses who want a buyer that shares ownership with management. Its homepage says every Kelso employee invests in its deals, and its Wellington-Altus deal let that firm's advisors and employees, its largest group of shareholders, sell part of their holdings. Owners of architecture and engineering firms should note Galloway: Kelso backed an independent sponsor led by a veteran industry executive and set aside follow-on equity for more acquisitions, so Galloway is a likely buyer of smaller firms in that field.

Kelso's platforms are large. An owner should ask whether the business would be a new platform or an add-on, how much equity management would be offered, and how long Kelso expects to hold it. Accession, bought as Risk Strategies in 2015, was sold in 2025.

Questions owners ask

Does Kelso take minority stakes?

Yes. In October 2025 it agreed to buy a 25% minority stake in Canadian wealth manager Wellington-Altus for nearly C$400 million, a deal that valued the company at more than C$1.5 billion.

What industries does Kelso invest in?

Its investments page sorts holdings into consumer, energy, financial services, healthcare, industrial, media and services. Its deals since mid-2025 were in wealth management, architecture and engineering, industrial distribution, and communications and fire and life safety systems.

How is Kelso connected to employee ownership?

The firm was founded on the ideas of Louis Kelso, who invented the employee stock ownership plan. It says every Kelso employee invests in its deals and that it offers management teams meaningful long-term incentive pay.

Has Kelso sold any companies recently?

Yes. It completed the $9.83 billion sale of Accession Risk Management Group to Brown & Brown in August 2025, and in August 2026 it announced a full exit from Ascensus through a recapitalization led by Stone Point Capital.

Sources

  1. S1Kelso & Company home page Accessed October 22, 2026
  2. S2Kelso: Our Approach Accessed October 22, 2026
  3. S3Kelso: Investments Accessed October 22, 2026
  4. S4Kelso: News Accessed October 22, 2026
  5. S5Kelso: Contact Us Accessed October 22, 2026
  6. S6Wellington-Altus announces nearly $400M strategic minority investment from Kelso & Company (PR Newswire, October 20, 2025) Accessed October 22, 2026
  7. S7Kelso & Company Closes Fund XI at $3.25 Billion, Surpassing Target (Business Wire, October 2, 2023; title only, see review flags) Accessed October 22, 2026
  8. S8Kelso Fund XI Announces Investment in Galloway (June 11, 2025) Accessed October 22, 2026
  9. S9Kelso Announces Sale of Accession Risk Management (August 13, 2025) Accessed October 22, 2026
  10. S10New Fund XI Investment in Wellington-Altus (October 29, 2025) Accessed October 22, 2026
  11. S11Kelso Fund IX Announces Agreement to Acquire Risk Strategies Company (October 7, 2015) Accessed October 22, 2026

Compiled by Greymont Advisors from public sources, including the firm’s own website and press releases. Greymont is not affiliated with Kelso & Company. Figures are as reported on the dates shown and may have changed. Request a correction

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