Department of the Interior contractors in Washington

Use this state-scoped buyer page to see which visible federal contractors sit closest to Department of the Interior inside Washington.

State: Washington

Last updated: April 3, 2026

Visible recipients

Mapped obligations

$241,917,527

Visible recipients tied to Department of the Interior in Washington

Kiewit Infrastructure West Co.

Vancouver, WA

Kiewit Infrastructure West Co. is a federal category business profile based in Vancouver, WA. The current public data layer shows $413,911,481 in visible federal obligations across 58 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 237990 (Other Heavy and Civil Engineering Construction). The profile also shows meaningful product and service activity in PSC Y1BD.

$241,598,418

Mckinstry CO LLC

Seattle, WA

Mckinstry CO LLC is a federal category business profile based in Seattle, WA. The current public data layer shows $7,789,591 in visible federal obligations across 5 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 238220 (Plumbing, Heating, and Air-Conditioning Contractors). The profile also shows meaningful product and service activity in PSC Z2AA.

$319,109

Browse by NAICS

Industry paths for Department of the Interior in Washington

NAICS 237990

1 visible recipients and $1,011,043,616 in mapped obligations inside this state-buyer lane.

NAICS 237310

1 visible recipients and $753,733,094 in mapped obligations inside this state-buyer lane.

NAICS 238110

1 visible recipients and $361,863,268 in mapped obligations inside this state-buyer lane.

NAICS 236220

1 visible recipients and $125,475,757 in mapped obligations inside this state-buyer lane.

NAICS 237110

1 visible recipients and $67,124,415 in mapped obligations inside this state-buyer lane.

NAICS 238220

1 visible recipients and $6,812,887 in mapped obligations inside this state-buyer lane.

Browse by PSC

Product and service paths for Department of the Interior in Washington

PSC Y1BD

1 visible recipients and $495,652,886 in mapped obligations inside this state-buyer lane.

PSC Y1KZ

1 visible recipients and $449,844,815 in mapped obligations inside this state-buyer lane.

PSC Y1KB

1 visible recipients and $326,791,985 in mapped obligations inside this state-buyer lane.

PSC Y1PD

1 visible recipients and $217,689,527 in mapped obligations inside this state-buyer lane.

PSC Y1PZ

1 visible recipients and $201,042,373 in mapped obligations inside this state-buyer lane.

PSC Z2AA

1 visible recipients and $6,072,480 in mapped obligations inside this state-buyer lane.