On the Record · Matrix Service
Matrix Service subsidiaries, as it lists them
The subsidiaries Matrix Service lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Matrix Service Inc. | Oklahoma |
| Matrix Service Canada ULC | Alberta, Canada |
| Matrix North American Construction, Inc. | Oklahoma |
| Matrix North American Construction, Ltd. | Canada |
| Matrix North American Construction, LLC | Delaware |
| Matrix SME Canada, Inc. | Delaware |
| Matrix SME Canada ULC | Nova Scotia, Canada |
| Matrix PDM Engineering, Inc. | Delaware |
| Matrix PDM, LLC | Oklahoma |
| Matrix Applied Technologies, Inc. | Delaware |
| Matrix International Holding Company, Ltd. | British |
| Matrix International Holding Company, LLC | Delaware |
| Matrix Applied Technologies, Ltd. | South Korea |
| Matrix Applied Technologies, Pty. Ltd. | Australia |
| Matrix Products and Services S. de R.L. de C.V. | — |
| MSI Federal Contracting, LLC | Delaware |
| Houston Dynamics, LLC | Qatar |
| Matrix Service International, LLC | Delaware |
| Matrix Applied Technologies FZ-LLC | UAE |
| Matrix PDM Engineering Ltd. | Nova Scotia |
| Matrix Engineering & Technical Solutions, LLC | Delaware |
| Matrix Project Services, LLC | Delaware |
| Matrix Project Services Ltd. | Alberta, Canada |
| Matrix PDM Engineering B.V | Netherlands |
| Matrix International Engineering, LLP | Delaware |
From Exhibit 21 of the 10-K for 2026. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Matrix Service’s annual reports (10-K for 2026, 10-K for 2025, 10-K for 2024) and the financial data it files with the SEC, as of 2026-09-03. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.