Centerline Mechanical LLC
Centerline Mechanical LLC is a small business in Tucson, AZ registered on SAM.gov to bid on federal contracts. It has won about $1 million in federal prime contracts as a small business since fiscal year 2024, according to USAspending.gov.
- UEI
- NJKNJBH4LGN7
- CAGE code
- 4UUL8
- 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 | Centerline Mechanical LLC |
|---|---|
| Unique Entity ID (UEI) | NJKNJBH4LGN7 |
| CAGE code | 4UUL8 |
| Location | Tucson, AZ |
| SAM.gov registration | Active through May 18, 2027 |
| Business started | 2007 |
| Primary NAICS code | 238220: Plumbing, Heating, and Air-Conditioning Contractors |
| Website | www.centerlineaz.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI NJKNJBH4LGN7 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).
- Hispanic American-owned (self-reported in SAM.gov)
- Minority-owned (self-reported in SAM.gov)
- Women-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.
Check or correct this record at the source: open its SAM.gov entry, or search UEI NJKNJBH4LGN7 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Centerline Mechanical LLC is small under
On its SAM.gov registration, Centerline Mechanical LLC meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
- 238990 All Other Specialty Trade Contractors
- 332919 Other Metal Valve and Pipe Fitting Manufacturing
- 332996 Fabricated Pipe and Pipe Fitting Manufacturing
- 335999 All Other Miscellaneous Electrical Equipment and Component Manufacturing
- 423730 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers
- 423740 Refrigeration Equipment and Supplies Merchant Wholesalers
- 423830 Industrial Machinery and Equipment Merchant Wholesalers
- 561210 Facilities Support Services
- 611513 Apprenticeship Training
- 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
Open contracts in Centerline Mechanical LLC's NAICS codes
288 open federal opportunities on SAM.gov use one of Centerline Mechanical LLC'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. Here are a few, those in its primary code first, then those in Arizona, then the soonest due.
- 12445127B0002 AZ Halfmoon Ranch House HVAC Installation
Due in 30 daysDec 7, 2026, 1:00 PM CST
- CGC Scioto Water Mist Fire Protection System
Due in 2 daysNov 9, 2026, 8:00 AM PST
- EROS Removal and replacement of chilled and conden
✦ The U.S. Geological Survey (USGS) wants a small business to replace chilled and condenser water piping at its Earth Resources Observation and Science (EROS) Center in Sioux…
Due in 2 daysNov 9, 2026, 5:00 PM CSTThe AI summary flags this date. Check SAM.gov.
- Or-Bandon Marsh NWR-Bandon HVAC
✦ The U.S. Fish and Wildlife Service (FWS) wants a contractor to replace the heating and air conditioning (HVAC) system at the Bandon Marsh National Wildlife Refuge bunkhouse in…
Due in 3 daysNov 10, 2026, 9:00 AM ESTThe AI summary flags this date. Check SAM.gov.
- White City B249 SE HVAC Repair
Due in 3 daysNov 10, 2026, 12:00 PM PST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (238220) that have won federal contracts in Arizona:
- Climate Control Resources, L.L.C, Prescott, AZ
- B2B Direct Sales, Inc., Mesa, AZ
- Red Horse Plumbing LLC, Gilbert, AZ
- Andrews Plumbing Services Inc, Scottsdale, AZ
- Emerson Boiler, Inc., Peoria, AZ
- Zona Mechanical, LLC, Tucson, AZ
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 May 18, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Centerline Mechanical LLC's CAGE code?
Centerline Mechanical LLC's CAGE code is 4UUL8. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Centerline Mechanical LLC's UEI?
Centerline Mechanical LLC's Unique Entity ID (UEI) is NJKNJBH4LGN7. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Centerline Mechanical LLC's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Centerline Mechanical LLC's registration is active through May 18, 2027. Registrations are renewed every year.
Is Centerline Mechanical LLC a small business?
Centerline Mechanical LLC is registered on SAM.gov as small under 11 NAICS codes, including its primary code, 238220. 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.