Investor Presentaiton

Orion at a Glance ORION Orion is a leading specialty construction company in the U.S., Canada and Caribbean Basin Services Company Overview . • Marine: Transportation facility & infrastructure construction; dredging • Concrete: Commercial, structural, and industrial Regions Served Headquarters Hawaii Geographic Footprint Key Statistics $711.8mm $23.8mm 2023 Revenue 1994 Founded 2023 Adj. EBITDA ORN (NYSE) Ticker ~2,400 Houston, TX Headquarters Employees Backlog Ended 12/31/23 $160M Concrete 21% $762M 79% $602M Marine Marine Concrete Caribbean Basin 3

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