Employer
Top donors at Martin Marietta
Itemized federal contributions over $200 only. Employer is self-reported on FEC filings.
Analysis
Itemized federal contributions over $200 from contributors who listed MARTIN MARIETTA as their employer total $663,268 across 728 donors. The largest immediate recipient was NATIONAL STONE, SAND & GRAVEL ASSOCIATION ROCKPAC, which received $591,008, followed by WINRED at $25,627. Figures reflect FEC filings through June 26, 2026.