SAM.gov UEI Registration for Cleaning Companies

No janitorial company can receive a federal contract award, subcontract flow-down reporting, or even a wage determination lookup tied to their firm without an active registration in the System for Award Management. SAM.gov replaced the old DUNS number system in April 2022 with a Unique Entity Identifier generated inside SAM itself, and registration remains entirely free directly through the government. That last point matters because a cottage industry of third-party "registration services" has built a business model around charging cleaning contractors for something the government provides at no cost.

The five steps, in the order that actually works

Cleaning contractors who get stuck in SAM.gov registration almost always skip a prerequisite. The path runs in a specific order: legal entity setup, UEI assignment, core entity data, representations and certifications, and NAICS code selection, each step depending on the one before it being complete and accurate.

Where cleaning companies actually get stuck

The most common failure point is a legal name or address mismatch between what you enter in SAM.gov and what the IRS has on file for your EIN. SAM validates against IRS data automatically, and even a minor discrepancy like "LLC" versus "L.L.C." can trigger a rejection that takes days to resolve through SAM's help desk. The second most common issue is notarized letter requirements: if you are registering as an authorized entity administrator for the first time and SAM's identity verification cannot confirm your authority electronically, you may be required to submit a notarized letter, which adds processing time measured in days, not hours. Build both risks into your timeline if you are registering against a bid deadline. Do not wait until the week an RFP is due to start this process for the first time.

Once active, SAM.gov registration is not permanent. It expires after one year and requires an annual renewal. A lapsed registration means you are technically ineligible for award even if you win a competition, and contracting officers routinely check SAM status before finalizing an award. Calendar the renewal date the day your registration goes active.

NAICS codes and why the primary code matters

Selecting 561720 (Janitorial Services) as your primary NAICS code in SAM.gov is what makes your firm show up when contracting officers search for janitorial vendors and what ties your firm to the correct SBA small business size standard for set-aside eligibility. If your company also handles related scope, such as landscaping under 561730 or building support services under 561790, add those as secondary codes rather than primary; the primary code should reflect the largest share of your anticipated federal revenue.

Reps and Certs: the part contractors rush through

The Representations and Certifications section inside SAM.gov is where you formally attest to your business size, ownership structure, labor law compliance history, and a list of other statutory representations tied to specific FAR clauses. Contracting officers rely on these certifications when determining set-aside eligibility and evaluating risk, and a careless answer here can misclassify your firm's size status or omit a certification a specific solicitation requires you to have on file before submission. Review the Reps and Certs annually at renewal rather than treating them as a one-time entry, since your business size, ownership, or bonding capacity may have changed since the prior year and an outdated certification can create a mismatch a contracting officer catches during award review.

Cleaning companies pursuing small business set-asides should pay particular attention to the size representation tied to NAICS 561720. SAM.gov calculates your size status based on the receipts data you enter, and an error here can either wrongly disqualify you from a set-aside or, worse, wrongly qualify you for one you do not actually meet, a discrepancy that surfaces during a size protest after award and can result in contract termination.

Keeping registration active through a multi-year contract

A SAM.gov registration actively supporting a multi-year federal contract needs the same renewal discipline as a brand-new registration, and the stakes are higher because payment processing runs through your registered banking information in the entity record. If your firm changes its remittance bank account, physical address, or authorized point of contact mid-contract, update SAM.gov promptly. A mismatch between your active award data and your current SAM.gov entity record can delay invoice payment processing until resolved. Set a recurring calendar reminder well ahead of your registration's annual expiration date, since the renewal window opens 60 days before expiration and a lapse even briefly can interrupt payment on active contracts.

Working with a subcontractor or teaming partner's SAM status

If your cleaning company plans to subcontract a portion of a federal award, or join a teaming arrangement as a subcontractor to a larger prime, your own SAM.gov registration still needs to be active even though you are not the prime holding the contract. Primes are required to verify a subcontractor's SAM status before flowing down work on many federal contracts, and a lapsed or incomplete registration on your end can hold up onboarding paperwork the prime needs before you can start billing for work performed. Keep your entity registration current independent of whether you are actively pursuing a prime award yourself; teaming opportunities often arrive with short turnaround windows, and a company that has to scramble to fix a SAM.gov issue before it can be added to a teaming agreement risks losing the opportunity to a competitor whose registration was already in order.

Frequently asked questions

What is a UEI and why do I need one instead of a DUNS number? The UEI is the identifier SAM.gov generates for every registered entity, replacing the third-party DUNS number system as of April 2022. Every active federal registration now uses a UEI, and none use DUNS going forward.

What happens if my SAM.gov registration expires mid-contract? An expired registration can block payment processing and disqualify you from new awards until it is renewed; existing contract obligations do not automatically terminate, but administrative friction increases significantly.

Do I need a UEI to bid on state or cooperative contracts too? Not always. State and cooperative procurement systems (COSTARS, Sourcewell, individual state portals) generally run their own vendor registration separate from SAM.gov, though some flow-down federal grant dollars may require it even on state-administered awards.

Should I pay a registration service to handle SAM.gov for me? There is no functional requirement to pay anyone. The process is free and designed for direct self-service, though a company juggling its first bid deadline may still choose to pay for the time savings rather than the necessity.