Kiewit Infrastructure West Co.
Kiewit Infrastructure West Co. received $103.9M in federal prime contract obligations in the 12 months ending Oct 5, 2026, down 52.2% from $217.2M the year before, and $321.2M since FY2022. Its largest customer is the Department of the Interior.
Contractor details
- Unique Entity ID (UEI)
- KGG6RMJ7D9P8
- CAGE code
- 1YY42
- Headquarters
- Fairfield, CA
- Business size
- Other Than Small Business
- Parent company
- Kiewit Infrastructure West Co (UEI UYPFKJ4EMJM9)
As recorded on this UEI's most recent prime contract action in USAspending.gov. Confirm current registration and certifications in SAM.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year.
Markets where it ranks top 10
Agency and NAICS markets where this UEI is one of the ten largest primes in the latest 12 months.
Top agencies
Funding agencies ranked by obligations since FY2022.
| Funding agency | Latest 12 mo | Since FY2022 |
|---|---|---|
| Department of the Interior | $103.9M | $321.2M |
Top NAICS codes
Industry codes agencies recorded on this contractor's awards, since FY2022.
| NAICS | Industry | Latest 12 mo | Since FY2022 |
|---|---|---|---|
| 237990 | Other Heavy and Civil Engineering Construction | $103.9M | $321.2M |
What it sells
Product and service codes (PSC) on this contractor's awards, since FY2022.
| PSC | Description | Since FY2022 |
|---|---|---|
| Y1PD | Construction of Waste Treatment and Storage Facilities | $217.9M |
| Y1PZ | Construction of Other NON-Building Facilities | $103.3M |
Recent awards
This contractor's newest prime contract awards, most recent first.
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| 140P2026C0032 | Department of the Interior YOSE 215363 - REPLACE TUOLUMNE MEADOWS WASTEWATER TREATMENT PLANT, AT YOSEMITE NATIONAL PARK IN CALIFORNIA. | $103.3M | Jun 11, 2026 |
| 140P2025C0038 | Department of the Interior YOSE 196416 REHABILITATE EL PORTAL WASTEWATER TREATMENT FACILITY AND ADMINISTRATIVE CAMP THE WORK OF THIS CONTRACT IS FOR THE CONSTRUCTION OF: YOSE 196416 REHABILITATE EL PORTAL… | $217.2M | May 16, 2025 |
Other Kiewit Infrastructure West Co entities
UEIs that report the same ultimate parent in SAM.gov. Ownership records can lag acquisitions.
Prime contracts (award types A–D) from USAspending.gov through Oct 5, 2026. Subcontracts are not included. Net obligations include deobligations and corrections.
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