Stout has advised STARC Systems, a portfolio company of North Branch Capital, on its sale to Bertram Capital. The transaction closed in September 2026.

Headquartered in Brunswick, Maine, STARC Systems is a manufacturer of reusable temporary containment wall systems used in sensitive construction environments. The company’s products address dust mitigation, noise abatement, pathogen containment, and other critical facility requirements across healthcare, data centers, life sciences, airports, and other end markets.

North Branch Capital is a lower-middle-market private equity firm focused on partnering with industrial and engineered products businesses with defensible market positions, entrepreneurial management teams, and opportunities for organic growth.

Bertram Capital is a middle-market private equity firm focused on partnering with companies where its operational resources and investment capabilities can support continued growth.