PSC Z1DB: Maintenance of Laboratories and Clinics
Z1DB is the product and service code (PSC) federal agencies use for “Maintenance of Laboratories and Clinics”, in the “Maint, Alter, Repair Buildings” group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 1
- Federal contract spending, FY2025
- $54.2 million
- Share of contract dollars to small businesses, since FY2024
- 49%
Open count as of Nov 7, 2026, 2:29 AM ET. The search counts live, so its total can differ by a notice or two.
Open PSC Z1DB contracts with 2+ days to respond
- R10 Lab: Region 10 Manchester Laboratory Facility
Due in 16 daysNov 23, 2026, 4:30 PM EST
Where Z1DB sits in the PSC Manual
- Category: Service
- Group Z: Maint, Repair, Alter Real Property
- Group Z1: Maint, Alter, Repair Buildings
- Code Z1DB: Maintenance of Laboratories and Clinics
NAICS codes used with PSC Z1DB
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with Z1DB most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC Z1DB |
|---|---|---|---|
| 236220 | Commercial and Institutional Building Construction | $110 million | — |
| 561210 | Facilities Support Services | $61.5 million | 1 |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | $12.9 million | — |
| 541990 | All Other Professional, Scientific, and Technical Services | $7.7 million | — |
| 238160 | Roofing Contractors | $6.5 million | — |
| 811210 | Electronic and Precision Equipment Repair and Maintenance | $2.1 million | — |
Open contracts under each code, with any PSC: NAICS 236220 · NAICS 561210 · NAICS 238220 · NAICS 541990 · NAICS 238160 · NAICS 811210
Who buys under PSC Z1DB
Agencies with the most contract dollars under Z1DB over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Department of the Army | $95 million |
| Agricultural Research Service | $51 million |
| Department of the Air Force | $26.2 million |
| Department of Veterans Affairs | $11.2 million |
| Environmental Protection Agency | $8.7 million |
| Defense Threat Reduction Agency | $7.7 million |
| National Institute of Standards and Technology | $1.9 million |
| Department of the Navy | $1.7 million |
Federal spending under PSC Z1DB by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $78.3 million |
| FY2025 | $54.2 million |
| FY2026 (incomplete) | $75.9 million |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed. FY2027 began October 1, 2026; it's left out until Defense data for it starts to arrive.
Who wins PSC Z1DB contracts
| Company | Obligated, last 3 years |
|---|---|
| Valiant Government Services LLC | $84.6 million |
| C Martin Co Inc | $26.7 million |
| Cas FSE JV II LLC | $22 million |
| J & J Maintenance Inc | $7.9 million |
| URS Federal Services International, Inc | $7.6 million |
| Mill Creek Firelake JV LLC | $6.2 million |
| Talion Construction, LLC | $5.6 million |
| Roofing Resources Inc | $4.3 million |
| Lavastida Development Group, L.L.C | $4.1 million |
| Aaecon General Contracting LLC | $2.4 million |
Linked names have a FedReady profile, which shows the NAICS codes a business is registered as small under. Most large companies have none.
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC Z1DB work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 236220 Commercial and Institutional Building Construction: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 561210 Facilities Support Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 238220 Plumbing, Heating, and Air-Conditioning Contractors: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
Related PSC codes
- Z111 Maint – Rep – Alt/Office BLDGS
- Z112 Maint – Rep – Alt/Conf Space & Fac
- Z119 Maint – Rep – Alt/Other Admin BLDGS
- Z121 Maint – Rep – Alt/Air Traffic Towers
- Z122 Maint – Rep – Alt/Air Traffic TNG Fac
- Z123 Maint – Rep – Alt/Radar & Nav Fac
- Z124 Maint – Rep – Alt/Airport Runways
- Z125 Maint – Rep – Alt/Airport Terminals
- Z126 Maint – Rep – Alt/Missile Systems Fac
- Z127 Maint – Rep – Alt/Elct & Comm Sys Fac
Frequently asked questions
What is PSC Z1DB?
Z1DB is the service code in the federal Product and Service Code (PSC) Manual named “Maintenance of Laboratories and Clinics”, under Z (Maint, Repair, Alter Real Property) and Z1 (Maint, Alter, Repair Buildings). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC Z1DB?
Most federal contract dollars under PSC Z1DB go with NAICS 236220 (Commercial and Institutional Building Construction), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC Z1DB?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 1 open notice uses PSC Z1DB right now. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.