Three Oaks Construction, Inc.
North Sioux City, SD
- UEI
- HWSZR9YRRHV4
- CAGE
- 9PPC1
- Primary NAICS
- 238910 Site Preparation Contractors
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 515 S Flynn St, North Sioux City, SD 57049, USA
- Website
- threeoaksinc.com
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
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 | $14,946,520 |
| FY2025 | $25,538,288 |
| FY2024 | $22,523,616 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $14,946,520 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
Three Oaks Construction, Inc., a self-certified small disadvantaged business headquartered in North Sioux City, South Dakota, performs civil engineering and water infrastructure construction for the U.S. Army Corps of Engineers as a prime contractor exclusively under total small business set-asides. The company operates across NAICS 237990 (Other Heavy and Civil Engineering Construction), delivering levee rehabilitation, bank stabilization, dike construction and repair, dredged material management, and ecosystem restoration work at multiple Corps districts.
Three Oaks holds a $75 million single-award Indefinite Delivery Contract with the Army Corps of Engineers, Norfolk District (ENDIST Norfolk), awarded August 13, 2024, running through August 12, 2027, for comprehensive site improvement services at the Craney Island Dredged Material Management Area in Portsmouth, Virginia. Under this vehicle, four delivery orders have been issued totaling $29.3 million: a $14.96 million earthwork and dike-raising task order (completion November 2026); a $13.39 million fill-material placement order (completion June 2026); a $382,429 emergency spillway repair order at the pipeline outfall (completion October 2025); and a $528,294 order for North Cell West Dike repairs (completion November 2025). Beyond the Norfolk contract, recent prime awards include an $8.19 million ecosystem restoration project at Fort Thompson, South Dakota (Lower Brule North Element 1 Phase 2, awarded January 15, 2026, completion April 2027); a $5.96 million Atlantic Intracoastal Waterway upland placement-area repair project in North Carolina (awarded April 1, 2026, completion April 2027); a $10.1 million island construction project near Hastings, Minnesota (awarded September 4, 2024, completion November 2026); and a $7.64 million Lower Brule Bank Stabilization project in South Dakota (awarded February 5, 2025, completion May 2026).
Customer concentration is extreme: the Army Corps of Engineers, Norfolk District, accounts for five awards worth $104.3 million of the $138.4 million combined potential value—75% of the portfolio—with the remaining three Army districts (Omaha, St. Paul, and a general Army Corps award) and the Department of the Army itself making up the remaining 25% across eight awards. All fourteen recent awards are prime contracts under total small business set-asides; the vendor carries zero subcontract positions. Activity has held steady at roughly five awards per year across 2024 through 2026. Six awards carrying $40.2 million in combined potential value reach ultimate completion within the next twenty-four months, creating immediate recompete exposure—primarily the Craney Island delivery orders and the Hastings island construction project due November 2026. The vendor's work concentrates on dredging-facility construction (5 awards) and repair or alteration of unimproved real property (4 awards), with ancillary scope in canal construction and restoration of real property.
Quick answers
Is Three Oaks Construction, Inc. registered in SAM.gov?
Yes. Three Oaks Construction, Inc.'s SAM.gov registration is active through February 9, 2027.
How much has Three Oaks Construction, Inc. received in federal contracts?
Federal contracts obligated $25,538,288 to Three Oaks Construction, Inc. in fiscal year 2025 and $63,008,423 in fiscal years 2023 through 2027.
How does Three Oaks Construction, Inc. rank among federal contractors?
Three Oaks Construction, Inc. ranked #9 in PSC Y1KF, #63 in NAICS 2379 and #79 in PSC Y1QA in FY2025.
What is Three Oaks Construction, Inc.'s most recent federal award?
Three Oaks Construction, Inc.'s most recent federal contract award is All plant, labor, materials, and equipment and performing all work for missouri river levee l-611 - 614 flood… (W9128F26CA029), from ENDIST Omaha (USACE), on May 20, 2026.
On GovTribe
See Three Oaks Construction, Inc.'s full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors