Orion Group Holdings, Inc. Schedules 2022 Second Quarter Results News Release for Wednesday, July 27th and Conference Call for Thursday, July 28th

HOUSTON, July 18, 2022 (GLOBE NEWSWIRE) -- Orion Group Holdings, Inc. (NYSE: ORN) (the "Company"), a leading specialty construction company, today announced that it will issue its financial results for the second quarter ended June 30, 2022 on Wednesday, July 27, 2022, after the close of the stock market.

ORN's management will conduct a conference call on Thursday, July 28, 2022 at 10:00 a.m. ET to review these results. To listen to the call live, dial 800-715-9871 in the US and Canada or 646-307-1963 in the US and ask for the Orion Group Holdings Conference Call. To listen to the call via the Internet, please visit https://edge.media-server.com/mmc/p/eywdkzdf. Please go to the website 15 minutes early to download and install any necessary audio software. If you are unable to listen live, a replay of the conference call may be accessed for approximately 30 days after the call at Orion Group Holdings' website.

About Orion Group Holdings

Orion Group Holdings, Inc., a leading specialty construction company serving the infrastructure, industrial and building sectors, provides services both on and off the water in the continental United States, Alaska, Canada and the Caribbean Basin through its marine segment and its concrete segment. The Company's marine segment provides construction and dredging services relating to marine transportation facility construction, marine pipeline construction, marine environmental structures, dredging of waterways, channels and ports, environmental dredging, design, and specialty services. Its concrete segment provides turnkey concrete construction services including pour and finish, dirt work, layout, forming, rebar, and mesh across the light commercial, structural and other associated business areas. The Company is headquartered in Houston, Texas with regional offices throughout its operating areas.

CONTACT: Orion Group Holdings Inc.

Francis Okoniewski, Vice President Investor Relations

(346) 616-4138

fokoniewski@orn.net

www.oriongroupholdingsinc.com