November 20, 2025

Northstar Capital Invests in US Dock & Door

MINNEAPOLIS, MN — Northstar Capital (“Northstar”), a committed financing partner to private equity sponsors in the lower middle market, is pleased to announce its investment in U.S. Dock & Door (“USDD”), a portfolio company of Soundcore Capital Partners.

USDD is a service-based platform of operating companies that maintain, repair, and install commercial loading dock equipment, entry systems, and residential garage doors. With more than 50 years of operating history, USDD’s companies primarily serve the Southeast and Northeast markets and work with customers across manufacturing, distribution, life sciences, retail, education, residential homeowners, and home builders. USDD has expanded through a disciplined buy-and-build strategy and will continue pursuing add-on acquisitions in the overhead door, dock leveler, and access control service sectors. For more information, please visit www.usdockdoor.com.

Northstar provided debt and an equity co-investment to support the financing of an add-on acquisition to further grow the USDD platform. The Northstar team remains committed to partnering with experienced management teams and private equity sponsors to help good companies become even better. USDD represents the eighteenth platform investment in Northstar Mezzanine Partners VIII L.P.

About Northstar Capital

Northstar Capital is a private investment firm specializing in providing flexible credit solutions and equity co-investments for lower middle market companies. Since its founding in 1993, Northstar has raised more than $2.4 billion in capital and supported over 170 small businesses nationwide. The firm is headquartered in Minneapolis, Minnesota, with an additional office in Fargo, North Dakota. Northstar invests across a broad range of industries, including healthcare, industrials, consumer, business services, food and agriculture, outsourcing, and distribution.

About Soundcore Capital Partners

Soundcore Capital Partners (“Soundcore”) is a thesis-driven private equity firm specializing in buy-and-build investments in the lower middle market across the United States and Canada. Based in New York, Soundcore focuses primarily on business and outsourced services, industrial services, specialty manufacturing, and value-added distribution sectors.

Contacts

Chris Kocourek – Managing Partner, Ethan Eid – Partner & Kendall Williamson – Senior Associate