Sterling to Participate in Upcoming Investor Conferences

Sterling Infrastructure, Inc. (NasdaqGS: STRL) ("Sterling" or "the Company") today announced that management is participating in the following investor conferences:

Morgan Stanley 14 th Annual Laguna Conference Date: September 15, 2026 Venue: The Ritz-Carlton, Laguna Niguel Company presentation is scheduled for 4:05-4:40 PM PST Webcast: Link

25 th Annual D.A. Davidson Diversified Industrials & Services Conference Date: September 24, 2026 Venue: The Four Seasons Hotel, Nashville

Sterling's management will host one-on-one meetings with investors at these events. Those interested in attending the conferences should reach out to their respective representatives or Noelle Dilts at [email protected] .

Sterling operates through a variety of subsidiaries within three segments specializing in E-Infrastructure , Transportation and Building Solutions in the United States, primarily across the Southern, Northeastern, Mid-Atlantic and Rocky Mountain regions and the Pacific Islands. E-Infrastructure Solutions provides advanced, large-scale site development services and mission-critical electrical services for data centers, semiconductor fabrication, manufacturing, distribution centers, warehousing, power generation and more. Transportation Solutions includes infrastructure and rehabilitation projects for highways, roads, bridges, airports, ports, rail and storm drainage systems. Building Solutions includes residential and commercial concrete foundations for single-family and multi-family homes, parking structures, elevated slabs, other concrete work, plumbing services, and surveys for new single-family residential builds.

From strategy to operations, we are committed to sustainability by operating responsibly to safeguard and improve society's quality of life. Caring for our people and our communities, our customers and our investors – that is The Sterling Way. Joe Cutillo, CEO, "We build and service the infrastructure that enables our economy to run, our people to move and our country to grow."