Midco Diving & Marine Services Inc.
Rapid City, SD
- UEI
- NYKRWAU2JFU5
- CAGE
- 3GM32
- Primary NAICS
- 237990 Other Heavy and Civil Engineering Construction
- 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
-
- 237990 Other Heavy and Civil Engineering Construction Primary
- 213113 Support Activities for Coal Mining
- 213114 Support Activities for Metal Mining
- 221111 Hydroelectric Power Generation
- 221112 Fossil Fuel Electric Power Generation
- 221113 Nuclear Electric Power Generation
- 221310 Water Supply and Irrigation Systems
- 221320 Sewage Treatment Facilities
Show all
- 237110 Water and Sewer Line and Related Structures Construction
- 238990 All Other Specialty Trade Contractors
- 541330 Engineering Services
- 541990 All Other Professional, Scientific, and Technical Services
- 561990 All Other Support Services
- 924110 Administration of Air and Water Resource and Solid Waste Management Programs
- SAM.gov registration date
- Physical address
- 3111 Lien St, Rapid City, SD 57702, USA
- Website
- midcodiving.com
- Founded
- 2003
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- 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 .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| EO 14398, service, water tank cleaning and inspection, jeca | Midwest Region | $7,374 | |
| Clean/inspect water tanks at waca & sucr | Intermountain Region | $9,852 | |
| Emergency water tank repair for crow agency | Rocky Mountain Region | $8,126 | |
| Emergency west water storage tank leak | Rocky Mountain Region | $6,312 | |
| The 366 CES requires water tank cleaning IAW the PWS. | Air Combat Command | $18,564 |
About Midco Diving & Marine Services Inc.
Midco Diving & Marine Services Inc., a woman-owned small business and self-certified small disadvantaged business based in Rapid City, South Dakota, operates as a specialized water infrastructure repair, cleaning, and inspection contractor serving federal agencies exclusively as a prime contractor on purchase orders. The company holds DOT certification as a disadvantaged business enterprise and competes across both set-aside (Total Small Business) and full-and-open procurements, with set-aside work accounting for roughly half of recent awards.
Midco's capability portfolio centers on water tank cleaning, inspection, and emergency repair; valve and dam maintenance; and allied water system interventions at federal facilities. The company's work is characterized by small-dollar, time-sensitive purchase orders reflecting the emergency-response and preventive-maintenance nature of water infrastructure. Representative contracts include an $84,386 total-small-business award from USDA Forest Service Region 9 for Lake 3 Dam valve repair (awarded June 2023, completed September 2024); a $24,524 multiyear water tank cleaning contract with the Department of Veterans Affairs' Veterans Integrated Service Network 10 (awarded September 2022, running through September 2027); an $18,564 total-small-business award from the Air Force's Air Combat Command for water tank cleaning, inspection, and repair at Mountain Home Air Force Base in Idaho (awarded September 2024); and a $15,250 USDA Forest Service Job Corps contract for emergency water tower repair in South Dakota (awarded March 2024). More recent activity includes a $14,280 total-small-business award from the Department of the Interior's Intermountain Region for water tank cleaning and inspection in Flagstaff, Arizona (awarded February 2026), and a $7,374 purchase order from a civilian agency midwest region for water tank cleaning and inspection in Custer, South Dakota (awarded May 2026).
Customer concentration is dispersed across fourteen distinct federal agencies. The top five customers by potential value account for 66% of combined dollars: the Department of Agriculture Forest Service Region 9 leads in dollars at $109 thousand across two awards, followed by the Department of the Army Corps of Engineers at $91 thousand across three awards, the Air Force Air Combat Command at $75 thousand across six awards, the Forest Service Job Corps at $43 thousand across three awards, and the National Oceanic and Atmospheric Administration at $37 thousand on a single award. By award count, the Air Force Air Combat Command leads with six awards, followed by the Bureau of Indian Affairs Rocky Mountain Region and Forest Service Job Corps with three each. The portfolio totals thirty-four awards across fourteen agencies with a combined potential value of $536 thousand, nearly 98% of which has been obligated. Activity has remained modest and flat—one award in 2022, three in 2023, three in 2024, two in 2025, and two in 2026—with three awards valued at $46 thousand completing in the next twenty-four months and subject to recompete. Midco operates solely as a prime contractor with no subcontract footprint. NAICS and PSC concentration reflects the company's core specialization: Water Supply and Irrigation Systems (9 awards) and All Other Support Services (8 awards) dominate NAICS, while Maintenance of Water Supply Facilities (8 awards) and Repair or Alteration of Water Supply Facilities (5 awards) dominate PSC coding.
SBA capabilities narrative
May we take this opportunity to introduce Midco Diving & Marine Services, a professional Diving & Marine Services Company offering a wide range of services to clients in a diverse range of projects and industries.
Quick answers
What is Midco Diving & Marine Services Inc.'s UEI?
Midco Diving & Marine Services Inc.'s Unique Entity ID (UEI) in SAM.gov is NYKRWAU2JFU5.
What is Midco Diving & Marine Services Inc.'s CAGE code?
Midco Diving & Marine Services Inc.'s CAGE code is 3GM32.
What is Midco Diving & Marine Services Inc.'s primary NAICS code?
Midco Diving & Marine Services Inc.'s primary NAICS code is 237990 (Other Heavy and Civil Engineering Construction).
Where is Midco Diving & Marine Services Inc. located?
Midco Diving & Marine Services Inc.'s physical address in SAM.gov is 3111 Lien St, Rapid City, SD 57702, USA.
Is Midco Diving & Marine Services Inc. registered in SAM.gov?
Yes. Midco Diving & Marine Services Inc.'s SAM.gov registration is active through April 30, 2027.
What is Midco Diving & Marine Services Inc.'s most recent federal award?
Midco Diving & Marine Services Inc.'s most recent federal contract award is EO 14398, service, water tank cleaning and inspection, jeca (140P6026P0016), from Midwest Region, on May 15, 2026.
On GovTribe
See Midco Diving & Marine Services Inc.'s full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
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