Sterling Infrastructure acquires Stone Ridge Contracting for $180M-$200M revenue addition

Filed June 9, 2026 · Period ending June 9, 2026 · ~1 min read

Key Changes

• high

  Sterling closed acquisition of Stone Ridge Contracting, an Idaho-based site development contractor serving data centers, mining, and industrial infrastructure, expanding E-Infrastructure segment into Pacific Northwest (Idaho, Oregon, North Dakota, Washington) and Texas.

  Exhibit 99.1 verify on EDGAR →
• high

  Stone Ridge expected to generate $180M-$200M in full-year 2026 revenue with EBITDA margins in the mid-teens; Sterling will update full-year 2026 guidance to reflect partial-year contribution when reporting Q2 results.

  Exhibit 99.1 verify on EDGAR →
• medium

  Purchase price multiple within Sterling's typical range for site development assets, paid with cash and stock; includes earnout tied to EBITDA targets through December 31, 2031.

  Exhibit 99.1 verify on EDGAR →