Diamond K Inc.
Fort Pierre, SD
- UEI
- CGDCN4CKE1N6
- CAGE
- 6HF71
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 1223 Salebarn Rd, Fort Pierre, SD 57532, USA
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| The purpose of this contract is to renovate the existing community sewer system in big bend, south dakota, which… | Indian Health Service | $391,760 | |
| G:epref, purchase building materials (treated boards, screw guns, screws, steel pipes/footers and paint) for badlands… | Midwest Region | $52,075 | |
| Crow creek scattered water and sewer | Indian Health Service | $596,581 | |
| Crow creek scattered water & sewer IDIQ task order #10 (project# AB-16-G06) | Indian Health Service | $29,861 | |
| Crow creek water & sewer task order #9 (AB-16-G06) | Indian Health Service | $60,563 |
About Diamond K Inc.
Diamond K Inc. is a corporate entity registered as a for-profit, subchapter S corporation in the System for Award Management (SAM.gov) to receive federal contracts and grants. Based on the contract award history, it appears to primarily provide construction services involving water, sewer, and related infrastructure projects for Native American communities and federal lands.
Over the past several years, Diamond K Inc. has been awarded multiple federal contracts from agencies like the Department of Health and Human Services Indian Health Service and the Department of the Interior National Park Service. Many of the awards are for construction of new or renovated water lines, sewer systems, septic tanks, and absorption beds to serve scattered home sites on reservations like the Crow Creek Indian Reservation in South Dakota. The contracts range from small purchase orders for construction materials to larger firm-fixed-price definitive contracts and delivery orders valued up to $596,581. The work is often set-aside for small businesses and subject to requirements like Tribal Employment Rights Ordinances. Diamond K Inc. has completed sewer system renovation for the Big Bend community on Crow Creek Reservation, installed individual water/sewer facilities for 10 home sites there, and provided sewage infrastructure for parks like Badlands National Park. The Indian Health Service has been a major customer for these kinds of sanitation facilities construction services in Native communities across South Dakota.
SBA capabilities narrative
General construction
Quick answers
What is Diamond K Inc.'s UEI?
Diamond K Inc.'s Unique Entity ID (UEI) in SAM.gov is CGDCN4CKE1N6.
What is Diamond K Inc.'s CAGE code?
Diamond K Inc.'s CAGE code is 6HF71.
What is Diamond K Inc.'s primary NAICS code?
Diamond K Inc.'s primary NAICS code is 236116 (New Multifamily Housing Construction (except For-Sale Builders)).
Where is Diamond K Inc. located?
Diamond K Inc.'s physical address in SAM.gov is 1223 Salebarn Rd, Fort Pierre, SD 57532, USA.
Is Diamond K Inc. registered in SAM.gov?
Yes. Diamond K Inc.'s SAM.gov registration is active through December 18, 2026.
What is Diamond K Inc.'s most recent federal award?
Diamond K Inc.'s most recent federal contract award is The purpose of this contract is to renovate the existing community sewer system in big bend, south dakota, which… (75H70124C00003), from Indian Health Service, on December 8, 2023.
On GovTribe
See Diamond K Inc.'s full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
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