King Co Inc.
Holland, MI
- UEI
- DMAGZLJSHGQ1
- CAGE
- 0EJK0
- Primary NAICS
- 237990 Other Heavy and Civil Engineering Construction
- 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
-
- 236210 Industrial Building Construction
- 237110 Water and Sewer Line and Related Structures Construction
- 237310 Highway, Street, and Bridge Construction
- 238110 Poured Concrete Foundation and Structure Contractors
- 238190 Other Foundation, Structure, and Building Exterior Contractors
- 238910 Site Preparation Contractors
- 238990 All Other Specialty Trade Contractors
- 483113 Coastal and Great Lakes Freight Transportation
- SAM.gov registration date
- Physical address
- 13520 Barry St, Holland, MI 49424, USA
- Website
- kingco.us
- Employees
- 1-10
- Estimated annual revenue
- $0-$1M
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 87 Engineering & Management Services
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 | $8,087,325 |
| FY2025 | $9,810,610 |
| FY2024 | $13,749,954 |
| FY2023 | $13,096,233 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $8,087,325 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| GEO Gradel Co | Toledo, OH | 237990 Other Heavy and Civil Engineering Construction |
| Walsh Service Solutions LLC | Kalamazoo, MI | 237990 Other Heavy and Civil Engineering Construction |
| Newt Marine Service | Dubuque, IA | 237990 Other Heavy and Civil Engineering Construction |
| Viking Marine Construction LLC | Holland, MI | 237990 Other Heavy and Civil Engineering Construction |
| Ryba Marine Construction CO. | Cheboygan, MI | 237990 Other Heavy and Civil Engineering Construction |
About the company
King Co Inc., a Holland, Michigan-based marine construction and dredging contractor, operates exclusively as a small business prime contractor (100% of recent awards) providing hydraulic dredging, sediment and debris removal, and waterway maintenance services to the U.S. Army Corps of Engineers across the Great Lakes and Illinois Waterway systems under total small business set-asides. The company self-performs all work without subcontractors and competes under NAICS 237990 (Other Heavy and Civil Engineering Construction) and PSC Y1KF (Construction of Dredging Facilities).
King Co Inc.'s customer concentration is heavily concentrated in USACE district operations, with 89% of awards spread across three primary organizational units. The Department of the Army Corps of Engineers Engineering District Detroit leads by dollar value with 58 awards valued at $234.5 million combined potential value, followed by the Department of the Army with 43 awards worth $195.8 million. The Department of the Army Corps of Engineers (undifferentiated) carries 170 awards valued at $78.6 million, and the newly awarded Department of the Army Corps of Engineers St. Louis District commands $50 million across two awards. This concentration reflects King Co Inc.'s established position as a key USACE contractor for routine harbor maintenance dredging at dozens of Great Lakes harbors and inland waterway locations across Michigan, Wisconsin, Indiana, Ohio, and the Illinois Waterway system.
King Co Inc. holds two significant parent IDVs anchoring its federal footprint. The Great Lakes Dredging Multiple Award Task Order Contract (MATOC), a $130 million vehicle established in February 2021 under the Detroit District, generated 27 task orders valued at $25.9 million combined potential value; the vehicle was recently recompeted and renewed on December 30, 2025, as a $180 million MATOC extending through December 29, 2030. The Indefinite Delivery Contract W912EK21D0007 for Illinois Waterway hydraulic dredging services carries 22 task orders valued at $20.9 million. Representative work includes a $2.697 million delivery order for dredging at Manistique, Michigan under the Great Lakes MATOC (issued July 10, 2026, completion October 31, 2026); a $2.487 million firm fixed-price definitive contract for Muskegon Harbor maintenance dredging (awarded August 21, 2025, completion October 20, 2026); a $1.48 million delivery order for Grand Haven Outer Harbor, Holland Outer Harbor, and St. Joseph Outer Harbor operations (awarded January 31, 2025, completion July 11, 2025); and $1.561 million and $884 thousand delivery orders for Senate Island and Devil's Elbow dredge cuts on the Illinois Waterway (awarded September 2024). The newly awarded St. Louis District Operations and Maintenance Dredging MATOC ($50 million, completion September 7, 2030) signals expansion from the Great Lakes region into the Mississippi and Illinois River tributaries in Illinois and Missouri.
Activity has remained relatively flat year over year — thirteen awards in 2022 to fifteen in 2025 — with only four awards (combined potential value $8.7 million) reaching ultimate completion within the next twenty-four months, representing a low recompete cliff in the near term. The Great Lakes MATOC recompete and award in December 2025 and the St. Louis District MATOC award in September 2025 represent significant vehicle wins that anchor future delivery order activity. Total federal award exposure spans $561.5 million in combined potential value across 312 prime awards (27% obligated as of the source snapshot), with invoiced federal dollars reaching $150.6 million, positioning King Co Inc. as a sustained, high-volume USACE dredging contractor across multiple regions and waterway systems.
Quick answers
Is King Co Inc. registered in SAM.gov?
Yes. King Co Inc.'s SAM.gov registration is active through December 29, 2026.
Which contract vehicles does King Co Inc. hold?
King Co Inc. holds a place on 4 federal contract vehicles, including Operations and Maintenance Dredging MATOC IDIQ and USACE Detroit Great Lakes Dredging MATOC 2025 - 2030.
How much has King Co Inc. received in federal contracts?
Federal contracts obligated $9,810,610 to King Co Inc. in fiscal year 2025 and $44,744,123 in fiscal years 2023 through 2027.
How does King Co Inc. rank among federal contractors?
King Co Inc. ranked #18 in PSC Y1KF and #93 in PSC Z1QA in FY2025.
What is King Co Inc.'s most recent federal award?
King Co Inc.'s most recent federal contract award is Great lakes dredging multiple award task order contract (MATOC) (W911XK26FA037), from ENDIST Detroit (USACE), on July 10, 2026.
On GovTribe
See King Co Inc.'s full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Funding analysis by agency, NAICS and set-aside
- Similar vendors