# Stonebridge Partners

Stonebridge Partners is a Private Equity based in White Plains, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** White Plains, United States
- **Region:** North America
- **Address:** 81 Main Street - Suite 505, White Plains, NY 10601, United States
- **Founded:** 1986
- **Assets under management:** Undisclosed
- **Website:** www.stonebridgepartners.com
- **LinkedIn:** https://www.linkedin.com/company/stonebridge-partners

## Regulatory record

- **CRD number:** 160018
- **SEC file number:** 801-73846
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-05-15T05:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/160018

## About

Stonebridge Partners is an SEC-registered investment adviser in White Plains, NY, registered since 2012. The firm manages approximately $99 million in regulatory assets. It has 4 employees and 3 investment advisers.

## Sectors

- Industrial Tech
- Manufacturing
- Business Services
- Distribution

## People

- Stephen A. Hanna — Managing Partner, Investment Committee
- William G. Connors — Managing Partner, Investment Committee
- Andrew A. Thomas — Partner, Investment Committee
- Gregory F. Goulette — Operating Partner, Investment Committee
- Ronald W. Chilton — Operating Partner, Investment Committee
- David R. Schopp — Senior Operating Partner
- Charles A. Howe — Controller, Chief Compliance Officer
- Louis Mollet — Vice President

## Questions

### Who runs investment decisions at Stonebridge Partners?

A four-person investment committee governs deployment: Managing Partners Stephen A. Hanna and William G. Connors alongside Operating Partners Gregory F. Goulette and Ronald W. Chilton. The dual-managing-partner structure has been stable since the firm's 1986 founding. No deal proceeds without sign-off from the operating-partner bloc, which enforces a post-close value-creation hurdle at the investment-committee level.

### How does Stonebridge Partners source proprietary deal flow?

Stonebridge draws on a narrow funnel of founder-succession and corporate-divestiture mandates within North American middle-market manufacturing and distribution. The firm credibly claims deal flow arises from long-tenured relationships with former portfolio-company CEOs who remain in its operating-partner network, giving it visibility into industrial niches where off-market carve-outs are common.

### Does Stonebridge Partners participate in fund commitments or only direct deals?

Stonebridge itself does not operate a fund-of-funds program; all deployed capital flows into direct control buyouts and recapitalizations. The firm runs its own commingled vehicles and side-by-side co-investment partnerships for larger bets, but it does not act as an LP in third-party private equity funds.

### What sectors does Stonebridge Partners explicitly avoid?

The firm's investment scope is tightly defined: it avoids technology, healthcare services, financial services, and consumer internet. Its operating-partner bench is built around industrial manufacturing, supply-chain logistics, and physical distribution — asset classes that generate tangible returns from operational reengineering rather than multiple expansion or software adoption.

### How does Stonebridge Partners structure the owner-operator relationship post-acquisition?

Operating partners often serve as board members or active advisors to portfolio companies following a close. Because many of these operating partners previously served as CEOs of Stonebridge portfolio companies, the post-acquisition dynamic is unusual — the same individual who performed a turnaround inside one Stonebridge asset is then deployed alongside management in another.

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Last updated: 2026-06-03T20:00:00.000Z

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