Diamond K Inc.

Fort Pierre, SD

UEI
CGDCN4CKE1N6
CAGE
6HF71
Primary NAICS
236116 New Multifamily Housing Construction (except For-Sale Builders)
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • Self Certified Small Disadvantaged Business
  • For Profit Organization
  • Subchapter S Corporation
Entity structure
Corporate Entity (Not Tax Exempt)
Other NAICS codes 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 .

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $0
FY2026 -$4,767
FY2025 $0
FY2024 $353,736
FY2023 $65,685

Contract awards

Latest 5 listed here. See the rest on GovTribe.

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About the company

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

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 CAGE code?

Diamond K Inc.'s CAGE code is 6HF71, and its Unique Entity ID (UEI) is CGDCN4CKE1N6.

How much has Diamond K Inc. received in federal contracts?

Federal contracts obligated $414,654 to Diamond K Inc. in fiscal years 2023 through 2027.

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 serves… (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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