Sterling Announces Acquisition of Stone Ridge Contracting, LLC

Sterling Infrastructure, Inc. has completed the acquisition of Stone Ridge Contracting, LLC, a site development contractor based in Pocatello, Idaho, for an undisclosed amount. The deal, finalized on June 9, 2026, aims to enhance Sterling's E-Infrastructure site development services, particularly in the Pacific Northwest, a region identified as a strategic growth area for the company. Stone Ridge is anticipated to generate full-year revenues ranging from $180 million to $200 million in 2026, with EBITDA margins expected to align with those of other well-managed contractors in the sector.

The acquisition is a significant move for Sterling, which operates through various subsidiaries in the E-Infrastructure, Transportation, and Building Solutions segments. By integrating Stone Ridge into its E-Infrastructure Solutions segment, Sterling is poised to expand its geographic footprint across key markets, including Idaho, Oregon, North Dakota, Washington, and Texas. This expansion aligns with the company's strategic focus on enhancing its capabilities in high-growth sectors such as data centers, mining, and industrial infrastructure.

Stone Ridge Contracting has established itself as a leading non-union contractor, known for delivering heavy civil, concrete, and construction management services. The company’s operational excellence and customer-centric approach have positioned it well within the competitive landscape of site development. The retention of Stone Ridge's leadership team post-acquisition is expected to facilitate a seamless transition and leverage their expertise to drive future growth.

The financial structure of the transaction includes a combination of cash and Sterling common stock, with an earn-out provision contingent upon achieving specific EBITDA targets by December 31, 2031. This structure is consistent with Sterling's typical approach to acquiring site development assets, allowing for potential future value creation based on performance.

The acquisition of Stone Ridge reflects broader trends in the infrastructure sector, where companies are increasingly seeking to enhance their service offerings and geographic reach through strategic acquisitions. As demand for infrastructure development continues to rise, particularly in the context of digital transformation and sustainable construction practices, Sterling is well-positioned to capitalize on these opportunities. The integration of Stone Ridge is expected to not only bolster Sterling's existing operations but also create new avenues for growth and margin expansion, reinforcing its commitment to serving a diverse range of end markets.