William Blair acted as the exclusive financial advisor to Sur-Seal, LLC (Sur-Seal), a portfolio company of
Heartwood Partners (Heartwood), in connection with its sale to Brodie Generational Capital Partners (Brodie). The transaction closed on December 22, 2025.
About the Companies
Based in Charlotte, North Carolina, Sur-Seal is a leading manufacturer of engineered components for critical applications across the industrial, HVAC, lighting, medical, aerospace, automotive, energy storage, and data center end markets. The company has deep material expertise combined with a broad offering of specialized material conversion processes.
Founded in 1982, Heartwood is a middle market private equity firm differentiated by a unique approach designed to create partnership with continuing management. Heartwood’s approach combines a conservative capital structure with strategic execution to support long-term growth, including organic and acquisition-driven expansion into new products, services, and end markets.
Brodie is a family-owned investment firm committed to sustainable, long-term growth. The firm prioritizes legacy, retains leadership, and focuses on building value over decades – not quarters – creating a lasting impact for the companies and communities Brodie supports.
Learn more about our industrial growth products investment banking expertise.