Probst Cleaning Service, Inc
Probst Cleaning Service, Inc is a small business in Glasgow, MT registered on SAM.gov to bid on federal contracts. It has won about $18,000 in federal prime contracts as a small business since fiscal year 2024, according to USAspending.gov.
- UEI
- L33KPSKLGN91
- CAGE code
- 3LZE3
- SAM.gov registration
- Active
Federal contract history
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Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | Probst Cleaning Service, Inc |
|---|---|
| Unique Entity ID (UEI) | L33KPSKLGN91 |
| CAGE code | 3LZE3 |
| Location | Glasgow, MT |
| SAM.gov registration | Active through Mar 5, 2027 |
| Business started | 1971 |
| Primary NAICS code | 561720: Janitorial Services |
| How to contact | No phone or email in SAM.gov's public file. Search UEI L33KPSKLGN91 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
- Veteran-owned (self-reported in SAM.gov)
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet. Self-reported business types are what the firm says about itself on SAM.gov; they aren't SBA certifications. This page doesn't show SBA's VetCert certification for veteran-owned firms; SBA's search below does.
Check or correct this record at the source: open its SAM.gov entry, or search UEI L33KPSKLGN91 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications including VetCert. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Probst Cleaning Service, Inc is small under
On its SAM.gov registration, Probst Cleaning Service, Inc meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Probst Cleaning Service, Inc's NAICS codes
20 open federal opportunities on SAM.gov use one of Probst Cleaning Service, Inc's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside or one for a status it reports about itself on SAM.gov (veteran-owned). Here are a few, those in its primary code first, then those in Montana, then the soonest due.
Confirm eligibility first. Probst Cleaning Service, Inc's veteran-owned status is self-reported on SAM.gov, and this page can't confirm an SBA certification for it, so set-asides for it may be relevant but may not be open to it: SDVOSB and VOSB set-asides need SBA VetCert certification. SBA's Small Business Search shows a firm's current certifications.
- Swan Lake Ranger District Janitorial Contract, Flathead National Forest
✦ Solicitation 1240LS26Q0044 (Amendment 1) is open only to small businesses (total small business set-aside).
Due in 5 daysNov 12, 2026, 1:00 PM MST
- Semi-Annual Window Cleaning
Due in 2 daysNov 9, 2026, 10:00 AM MST
- JANITORIAL SERVICE - Kentucky Area
Due in 2 daysNov 9, 2026, 2:00 PM EST
- Estes Janitorial Service
✦ The Bureau of Reclamation's Eastern Colorado Area Office is looking for small businesses that could clean the Estes and Marys Lake Powerplants in Estes Park, CO. This is a…
Due in 3 daysNov 10, 2026, 3:00 PM MST
- Janitorial Services on the Homochitto Ranger District, MS
Due in 5 daysNov 12, 2026, 9:00 AM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (561720) that have won federal contracts in Montana:
- Becky Rose, Eureka, MT
- Debra Davis, Nashua, MT
- All Purpose Cleaning, Inc., Great Falls, MT
- Lisa Murdock, Fort Peck, MT
- K Cameron Clark, Dillon, MT
- Robyn Wolff, Nashua, MT
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through Mar 5, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Probst Cleaning Service, Inc's CAGE code?
Probst Cleaning Service, Inc's CAGE code is 3LZE3. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Probst Cleaning Service, Inc's UEI?
Probst Cleaning Service, Inc's Unique Entity ID (UEI) is L33KPSKLGN91. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Probst Cleaning Service, Inc's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Probst Cleaning Service, Inc's registration is active through Mar 5, 2027. Registrations are renewed every year.
Is Probst Cleaning Service, Inc a small business?
Probst Cleaning Service, Inc is registered on SAM.gov as small under 2 NAICS codes, including its primary code, 561720. 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
- Hiring subcontractors? List small businesses by state, NAICS code and certification
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 report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.