William Klesalek
William Klesalek is a small business in Mandan, ND registered on SAM.gov to bid on federal contracts. It has won about $123,180 in federal prime contracts since fiscal year 2024, according to USAspending.gov.
- UEI
- M6E7EG86JTM5
- CAGE code
- 3MRL4
- SAM.gov registration
- Active
Registration details
| Legal business name | William Klesalek |
|---|---|
| Unique Entity ID (UEI) | M6E7EG86JTM5 |
| CAGE code | 3MRL4 |
| Location | Mandan, ND |
| SAM.gov registration | Active through Aug 10, 2027 |
| Business started | 1976 |
| Primary NAICS code | 237110: Water and Sewer Line and Related Structures Construction |
Federal contract history
USAspending.gov shows no federal prime contracts for this UEI in the last five years. Many small businesses start as subcontractors to larger firms; see how to become a government subcontractor.
NAICS codes William Klesalek is small under
On its SAM.gov registration, William Klesalek meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 237110 Water and Sewer Line and Related Structures Construction
Open contracts in William Klesalek's NAICS codes
36 open federal opportunities on SAM.gov use a NAICS code William Klesalek is small under. These are due soonest.
- Loleta Water System Upgrades
✦ The U.S. Forest Service is asking for quotes to upgrade the water system at the Loleta Recreation Area in Marienville, PA: new water pipe, spigots, valves, concrete work, a well…
Due in 2 daysOct 12, 2026
- Upgrade Water Tanks - FCI Texarkana, Tx
✦ The Federal Bureau of Prisons wants a contractor to rebuild the water storage and distribution system at the Federal Correctional Institution in Texarkana, Texas.
Due in 3 daysOct 13, 2026
- GRCA 318719 North Rim & Springs Rehabilitation Program
Due in 3 daysOct 13, 2026
- Construction of the new Regional Storm Water Retention Basin at Detroit Arsenal, Warren, MI
✦ The U.S. Army Corps of Engineers (Louisville District) is running a market survey (Sources Sought) to find out which firms could build a new regional storm water retention basin…
Due in 3 daysOct 13, 2026
- Repair and Maintain Water Towers at FCI Terre Haute
Due in 4 daysOct 14, 2026
Similar small businesses
Other small businesses with the same primary NAICS code (237110) that have won federal contracts, starting with North Dakota:
- Teraflex Group LLC, Williston, ND
- Mainsaver-North Central, Inc., Jamestown, ND
- Pate Construction Co., Inc., Pueblo, CO
- Infratech International, LLC, Harmon, GU
- Bairco Construction Inc, Lovell, WY
- Ahtna USA-CDM JV, Rancho Cordova, CA
Frequently asked questions
What is William Klesalek's CAGE code?
William Klesalek's CAGE code is 3MRL4. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is William Klesalek's UEI?
William Klesalek's Unique Entity ID (UEI) is M6E7EG86JTM5. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is William Klesalek's SAM.gov registration active?
Yes, as of the latest SAM.gov public data, William Klesalek's registration is active through aug 10, 2027. Registrations are renewed every year.
Is William Klesalek a small business?
William Klesalek is registered on SAM.gov as small under 1 NAICS code, including its primary code, 237110. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To ask us to remove this page, email hello@fedready.us.