On the Record · Martin Marietta Materials
Martin Marietta Materials subsidiaries, as it lists them
The subsidiaries Martin Marietta Materials lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| 1560947 B.C. LTD. | a British Columbia, Canada corporation |
| 2M Lands, LLC | a North Carolina limited liability company |
| Alamo Gulf Coast Railroad Company | a Texas corporation |
| Alamo North Texas Railroad Company | a Texas corporation |
| Albert Frei & Sons, Inc. | a Colorado corporation |
| American Aggregates Corporation | a North Carolina corporation |
| American Materials Technologies, LLC | a Tennessee limited liability company |
| American Stone Company | a North Carolina corporation |
| AR & MJ Frei Limited Partnership | a Colorado limited liability partnership |
| Bahama Aggregates Company, LLC | a Delaware limited liability company |
| Bahama Cement Company | a Liberian nonresident domestic corporation |
| Bahama Rock Limited | a Bahamas corporation |
| Bluegrass – Blue Mount, LLC | a North Carolina limited liability company |
| Bluegrass Materials Company, LLC | a North Carolina limited liability company |
| Bluegrass-St. Marys, LLC | a North Carolina limited liability company |
| Brookhollow Corporation | a Delaware corporation |
| Campbell’s C-Ment Contracting, Inc. | a Colorado corporation |
| Carolina Quarries, Inc. | a Delaware corporation |
| CIG MC LLC | a Colorado limited liability company |
| Creole Corporation | a Delaware corporation |
| FRI Ready Mix of Tennessee, LLC | a Florida limited liability company |
| Front Range Aggregates LLC | a Delaware limited liability company |
| Granite Canyon Quarry | a Wyoming joint venture |
| Harding Street Corporation | a North Carolina corporation |
| HSMM LLC | a North Carolina limited liability company |
| Kent Sand & Gravel Company, LLC | a North Carolina limited liability company |
| Mardell Trucking Company, Inc. | a North Carolina corporation |
| Marlin Acquisition Company 2, Inc. | a Delaware corporation |
| Martin Marietta ALTN Aggregates, Inc. | a Tennessee corporation |
| Martin Marietta ALTN Holdings, Inc. | a Delaware corporation |
| Martin Marietta Arizona, LLC | a North Carolina limited liability company |
| Martin Marietta Bluegrass, LLC | a North Carolina limited liability company |
| Martin Marietta California A&P, LLC | a North Carolina limited liability company |
| Martin Marietta California Ready-Mix, LLC | a Delaware limited liability company |
| Martin Marietta Exchange Entity, LLC | a North Carolina limited liability company |
| Martin Marietta Fleet Management LLC | a North Carolina limited liability company |
| Martin Marietta Funding LLC | a Delaware limited liability company |
| Martin Marietta Inc. | a North Carolina corporation |
| Martin Marietta Kansas City, LLC | a Delaware limited liability company |
| Martin Marietta Magnesia Specialties, LLC | a Delaware limited liability company |
| Martin Marietta Marine Finance, LLC | a California limited liability company |
| Martin Marietta Marine Operations, LLC | a California limited liability company |
| Martin Marietta Materials Canada Limited | a Nova Scotia, Canada corporation |
| Martin Marietta Materials of Missouri, Inc. | a North Carolina corporation |
| Martin Marietta Materials Real Estate Investments, Inc. | a North Carolina corporation |
| Martin Marietta Materials Southwest, LLC | a Delaware limited liability company |
| Martin Marietta Materials West Division, LLC | a North Carolina limited liability company |
| Martin Marietta Northern California Aggregates, LLC | a Delaware limited liability company |
| Martin Marietta North Texas Cement, LLC | a Delaware limited liability company |
| Martin Marietta Pacific District Cement LLC | a Delaware limited liability company |
| Martin Marietta San Diego Aggregates LLC | a California limited liability company |
| Martin Marietta Southern California Aggregates, LLC | a Delaware limited liability company |
| Martin Marietta South Texas Cement, LLC | a Delaware limited liability company |
| Martin Marietta Texas Ready-Mix, LLC | a Texas limited liability company |
| Martin Marietta Southeast AGG Operations, LLC | a Delaware limited liability company |
| Martin Marietta Southeast Aggregates, Inc. | a Delaware corporation |
| Martin Marietta Southwest Ready-Mix, Inc. | a Delaware corporation |
| Martin Marietta Stockton, LLC | a Delaware limited liability company |
| Martin Marietta Transportation and Distribution, LLC | a North Carolina limited liability company |
| Material Producers, Inc. | an Oklahoma corporation |
| Maryland Materials, Inc. | a North Carolina corporation |
| Meridian Aggregates Company, a Limited Partnership | a North Carolina limited partnership |
| Meridian Aggregates Company Northwest, LLC | a North Carolina limited liability company |
| Meridian Aggregates Investments, LLC | a North Carolina limited liability company |
| Meridian Granite Company | a North Carolina corporation |
| Mid-State Construction & Materials, Inc. | an Arkansas corporation |
| Mission Valley Rock Co., LLC | a California limited liability company |
| MMM Mexico I, LLC | a North Carolina limited liability company |
| MMM Mexico, LLC | a North Carolina limited liability company |
| MMMW AGG, LLC | a North Carolina limited liability company |
| MMMW CMT, LLC | a North Carolina limited liability company |
| MTD Pipeline LLC | a Delaware limited liability company |
| Mystic Valley LLC | a Colorado limited liability company |
| Northeast Land and Material Company, Inc. | a North Carolina corporation |
| Palmetto Sand Company Inc. | a South Carolina corporation |
| Panadero Midco, LLC | a North Carolina limited liability company |
| PCAz Leasing, LLC | an Arizona limited liability company |
| Petrillo Brothers, Inc. | a North Carolina corporation |
| Piedras y Arenas Baja, S. de R.L. de C.V. | a Mexico limited liability company |
| Powderly Transportation, Inc. | a North Carolina corporation |
| Premier Magnesia, LLC | a Delaware limited liability company |
| R&S Sand & Gravel, LLC | a North Carolina limited liability company |
| Riverside Cement Company | a California general partnership |
| Rock & Rail LLC | a Colorado limited liability company |
| Rocky Mountain Materials and Asphalt, Inc. | a Colorado corporation |
| Rocky Mountain Premix, Inc. | a Colorado corporation |
| Rocky Mountain Ready Mix Concrete, Inc. | a Colorado corporation |
| Royal Gorge Express, LLC | a Colorado Limited Liability Company |
| St. Marys Sand Company, LLC | a North Carolina limited liability company |
| Suburban Acquisition Company | a Colorado corporation |
| Theodore Holding, LLC | a Delaware limited liability company |
| Tiller Corporation | a North Carolina corporation |
| TXI Aviation, Inc. dba TXI Retail | a Texas corporation |
| TXI California, LLC | a Delaware limited liability company |
| TXI Riverside, LLC | a Delaware limited liability company |
| Valley Stone LLC | a Virginia limited liability company |
From Exhibit 21 of the 10-K for 2025. 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 Martin Marietta Materials’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-19. 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.