A direct answer for Department of Defense contractor spending, with supporting agency and ranking links.
Bechtel Parsons Blue Grass A Joint Venture is the top listed contractor for Department of Defense, with $4,980,576,179 in ingested obligations.
Source: USAspending.gov. Last updated from ingested federal spending data: May 7, 2026.
Who are the top contractors for Department of Defense? is answered with the facts and supporting relationships visible on this page.
336414 - GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING is the largest visible NAICS category for Department of Defense at $5,639,384,301.
Use the source profile, ranking, and methodology links on this page to inspect the supporting USAspending.gov-derived rows before making a business or research decision.
This page does not forecast future awards, endorse a contractor, or infer facts outside the ingested federal spending records. Sparse or unsupported question URLs return a 404 or noindex treatment instead of being expanded into thin content.
336414 - GUIDED MISSILE AND SPACE VEHICLE MANUFACTURING is the largest visible NAICS category for Department of Defense at $5,639,384,301.
Use the source profile, ranking, and methodology links on this page to inspect the supporting USAspending.gov-derived rows before making a business or research decision.
This page does not forecast future awards, endorse a contractor, or infer facts outside the ingested federal spending records. Sparse or unsupported question URLs return a 404 or noindex treatment instead of being expanded into thin content.