 TULSA, Okla., Sept. 09, 2021 GLOBE NEWSWIRE -- Matrix Service Company Nasdaq: MTRX announced today that President and Chief Executive Officer John R. Hewitt and Vice President and Chief Financial Officer Kevin Cavanah will be presenting at the D.A. Davidson 20th Annual Diversified Industrials Services Conference on September 22, 2021 at 5pm Eastern Standard Time and at the Sidoti Fall Small Cap Investor Conference on September 23, 2021 at 10:00 a.m. Eastern Standard Time. One-on-one meetings with management are available during both conferences with prior notice and may be scheduled through the conferences or by contacting Matrix Service Company at 