CHATTANOOGA, Tenn. (March 09, 2026) — FourBridges Capital Advisors, a leading lower middle market investment banking firm that helps business owners sell their companies, announced today that Alpha Lumber & Supply, Co., Inc. (“Alpha Lumber”) has been acquired by Building Industry Partners (“BIP”). FourBridges structured and negotiated the deal on behalf of Ken Williams, president of Alpha Lumber.

Founded in 1945 by Ken Williams’ grandfather, Alpha Lumber is a third-generation family run business based in Montgomery, Alabama. Over 80 years in business, the company has become the premiere building material supplier in Montgomery and the Tri-County Area, earning a reputation for top quality building materials and the highest level of service.

A full-service supplier of building materials for both contractors and individuals, Alpha Lumber specializes in framing lumber, treated lumber, siding and engineered wood products. In addition to supplying materials, the company offers project planning, estimation and custom work.

“In matching us with BIP, FourBridges helped us achieve our goals for the sale,” said Ken Williams, Alpha Lumber president and owner. “From preserving the legacy of the company my grandfather built to taking care of our employees and ensuring the Alpha Lumber name will be preserved for decades to come, BIP is an ideal partner.”

Headquartered in Boston, BIP is the leading private equity investment firm focused exclusively on the U.S. building industry, with operating partners across the country. “The combination of Alpha Lumber’s longstanding reputation, market position and strong operational platform combined with BIP’s financial and strategic expertise, commitment to people-focused business principles, and building industry domain experience, will help drive the longstanding company’s next phase of growth,” said Cam Sadler, BIP Vice President.

“We were thrilled to find an ideal partner for Alpha Lumber in BIP,” said Ralph Montgomery, FourBridges Managing Director. “BIP’s deep expertise in acquiring and scaling family-owned lumber and building material businesses will help usher in an exciting era of growth for Alpha Lumber, while preserving the company’s legacy, maintaining its culture, and continuing the high level of service and quality that has propelled its success through three generations.”

Alpha Lumber will benefit from BIP’s wealth of resources, which will support the company’s growth and competitive position in the marketplace. Ken Williams will remain at the helm of the company.

The FourBridges deal team included Ralph Montgomery and John Kirkland.

About Alpha Lumber & Supply Co., Inc.

Founded in 1945, Alpha Lumber has been serving professional builders, contractors and homeowners in Central and South Alabama for more than 80 years. The third-generation family business based in Montgomery has built a reputation for delivering quality lumber, engineered wood products, and construction materials, along with expert estimating, design support, and dependable job-site delivery. For more information, visit alphalumber.com.

About Building Industry Partners
Founded in 2008, Building Industry Partners is the leading private equity investment firm focused on the U.S. building industry. The Boston-headquartered company has invested heavily in lumber and building materials companies across the country. Over the past decade, BPI has founded and invested in some of the building product sector’s marquee and fastest-growing middle-market businesses. For more information, visit buildingip.com.

About FourBridges
FourBridges Capital is a leading lower middle market investment banking firm that represents business owners who are thinking about selling their company, making an acquisition, or refinancing. The partners run a proven process to identify quality buyers, achieve the best value, ensure the right fit, and close the deal fast. For more information, visit fourbridgescapital.com.