Acquisition Expands Sterling's E-Infrastructure Site Development Services Into the Pacific NorthwestTHE WOODLANDS, Texas, June 9, 2026 /PRNewswire/ -- Sterling Infrastructure, Inc. (NASDAQ: STRL) ("Sterling" or "the

Acquisition Expands Sterling's E-Infrastructure Site Development Services Into the Pacific Northwest

THE WOODLANDS, Texas, June 9, 2026 /PRNewswire/ -- Sterling Infrastructure, Inc. (NASDAQ:STRL) ("Sterling" or "the Company") today announced that it has closed on the acquisition of Stone Ridge Contracting, LLC. (Stone Ridge), a Pocatello, Idaho-based site development contractor. Stone Ridge will join Sterling's E-Infrastructure Solutions segment.

The purchase price multiple paid for Stone Ridge is within Sterling's typical range for site development assets. The upfront purchase price consists of a combination of cash and Sterling common stock. Additionally, Stone Ridge has an earn out opportunity, contingent upon meeting certain EBITDA targets on or before December 31, 2031.

Stone Ridge is expected to generate full-year 2026 revenue in the range of $180 million to $200 million and EBITDA margins in the mid-teens, consistent with well-run site development contractors of similar scale. Sterling plans to update its full year 2026 financial guidance to reflect the partial year contribution from Stone Ridge at the time of its second quarter 2026 financial report.