Organization · Private Equity
Granite Street Partners
Granite Street Partners is a private equity firm based in the Boston area that invests in lower middle market B2B industrial manufacturing businesses. They focus on management buyouts and corporate carve-outs to create value in family or founder-owned companies.
Overview
What Granite Street Partners does
What Granite Street Partners is
Granite Street Partners is a private equity firm based in the Boston area that invests in lower middle market B2B industrial manufacturing businesses. They focus on management buyouts and corporate carve-outs to create value in family or founder-owned companies.
How it participates in the startup ecosystem
The current public profile supports funder capabilities. Each capability below is shown separately so organization identity and role-specific information do not get conflated.
Operational profile
Organization status and context
Organization status describes the entity itself. Funding and program availability appear within the relevant capability profile.
- Operational status
- Active
- Organization type
- Private Equity
- Structured capabilities
- Funder
- Last reviewed
- March 4, 2026
Official channels
Find Granite Street Partners elsewhere
Open the official website or a supported primary organization account.
Capability profile
Granite Street Partners as a funder
Investment thesis
Granite Street Partners invests in family or founder-owned businesses in the industrial manufacturing sector, focusing on management buyouts and corporate carve-outs. They target companies with an EBITDA between $3 million and $15 million.
Focus narrative
Granite Street Partners invests in the industrial manufacturing sector, targeting companies with an EBITDA between $3 million and $15 million. Their investment strategy emphasizes B2B companies headquartered in the U.S. with international coverage. The firm identifies meaningful value creation opportunities in various sectors, including aerospace, industrial automation, LED/industrial lighting, e-mobility, packaging/material handling, industrial filtration, electrical controls, electronics, commercial vehicles, wire and cable, ag tech, and medical devices.
Terms and economics
- Typical check
- $3,000,000–$15,000,000
Focus and fit
- Regions
- United States
Availability
- Currently deploying
- Not published
Portfolio and track record
Portfolio context
Notable companies associated with Granite Street Partners include Boeing, Cummins, Deere, Eaton, Osram, Prysmian, and United Technologies.
Common questions
What to know about Granite Street Partners
Upseed classifies Granite Street Partners under the Private Equity organization type. Its current public profile includes funder capabilities.
Source and update disclosure
Know what this page is based on
Source basis
Public organization and program material, official websites, and structured Upseed records.
Last reviewed
March 4, 2026
Known limits
Capability profiles appear only when a structured public profile also contains decision-useful role evidence. Terms and availability can change.
Upseed is an independent guide. It is not affiliated with or endorsed by the organization described on this page.