Architecture and engineering work gets bought differently than almost everything else the government procures. Most federal contracts go to the lowest responsible bidder or the best price-technical tradeoff. Architecture and engineering, called A-E services in the contracting world, runs on a separate track set by the Brooks Act (codified in FAR Part 36.6). Agencies are required to pick firms on qualifications first and negotiate price only after they have already chosen who they want to work with.
That one rule changes everything about how you compete. If you understand it, you stop writing the wrong kind of proposal and start building the thing agencies actually score you on.
The NAICS codes and size standard you needYour primary code is almost always NAICS 541310, Architectural Services. Related work falls under 541330 (Engineering Services), 541320 (Landscape Architectural Services), and 541410 (Interior Design Services). Pick the one that matches the bulk of your revenue as your primary, and list the others as secondary codes in your SAM.gov registration.
For 541310, the small business size standard is $12.5 million in average annual receipts (averaged over the most recent three to five fiscal years, depending on the current SBA rule). SBA proposed raising that to $16.0 million in a 2025 rulemaking, so confirm the current number on the SBA size standards table before you rely on it. If your firm is under the threshold, you qualify as a small business and you are eligible for every small-business set-aside the government runs.
Who buys architecture and designThe biggest A-E buyers are the agencies that build and maintain physical infrastructure. The U.S. Army Corps of Engineers is the largest single source of A-E work in the federal government. The General Services Administration owns and operates federal buildings nationwide. The Department of Veterans Affairs, NAVFAC (Naval Facilities Engineering Systems Command), the Air Force Civil Engineer Center, and the National Park Service all buy design and renovation work in volume. State and municipal governments buy even more in aggregate, and most run their own QBS processes modeled on the federal one.
You find the opportunities on SAM.gov, the federal contracting portal. A-E announcements are posted as "sources sought" and "synopsis" notices rather than as priced solicitations, because the government cannot ask you for a price until after it has ranked firms.
The SF330 is your proposalUnder the Brooks Act, agencies advertise the requirement, then collect qualifications on Standard Form 330 (SF330). The SF330 is not a price proposal. It is a structured statement of your firm's experience, your key personnel, your project examples, and your approach. Agencies score the SF330 against published evaluation criteria, shortlist at least three of the most highly qualified firms, interview them, rank them, and only then open price negotiation with the top-ranked firm.
Practically, that means your win rate depends on three things: relevant project experience documented in the SF330, the named individuals you put on the project, and how cleanly you map your qualifications to the agency's published criteria. A firm with strong past performance and a sharp SF330 beats a cheaper competitor with a weaker record. Price is the last conversation, not the first.
The set-asides that applySmall business set-asides reserve specific contracts for small firms. For A-E work, the relevant programs are:
- Small business set-aside. Open to any firm under the 541310 size standard. No special certification beyond SAM.gov registration and self-certification.
- 8(a) Business Development. For firms owned by socially and economically disadvantaged individuals. Nine-year term, and the only program where agencies can award sole-source contracts up to set thresholds without competition. SBA-certified.
- Women-Owned Small Business (WOSB) and EDWOSB. Architecture (541310) is among the NAICS codes where WOSB set-asides apply. You can self-certify in SAM.gov or use an SBA-approved third-party certifier.
- Service-Disabled Veteran-Owned Small Business (SDVOSB). Set-asides and sole-source awards for veteran-owned firms. SBA-certified.
- HUBZone. For firms with a principal office in a Historically Underutilized Business Zone and at least 35% of employees living in one. The government targets at least 3% of contract dollars to HUBZone firms each year. SBA-certified.
These stack. A veteran-owned, woman-owned firm in a HUBZone can hold multiple certifications and compete in whichever lane has the most active opportunities. If you are not sure which certifications you qualify for, our certification guides walk through the eligibility tests for each program.
How certification actually helpsCertification does two things. First, it makes you eligible for contracts other firms cannot bid, which shrinks your competition from hundreds of firms to a handful. Second, it helps primes hit their subcontracting goals. Every prime contractor on a large federal contract must submit a subcontracting plan with targets for small, women-owned, veteran-owned, HUBZone, and disadvantaged firms. A certified A-E firm is the thing that lets the prime check those boxes, which is why primes actively look for you.
Getting certified across multiple programs at once is tedious because each agency wants its own forms and documents. CertifyAll collects your business and ownership information one time and prepares the applications for the certifications you qualify for, which saves the weeks most owners lose to overlapping paperwork.
The prime and subcontract routeFew firms win a large federal design contract cold. The faster path is subcontracting. You join a larger A-E firm's team on a project, deliver a discrete scope (the structural package, the landscape design, the interiors), build documented past performance, and use that record to win your own prime contracts later.
A 12-person architecture firm does not start by chasing a $40 million Corps of Engineers design contract. It starts by getting on the SF330 of a firm that already holds an indefinite delivery / indefinite quantity (IDIQ) A-E contract, then converts that experience into a WOSB or 8(a) set-aside award of its own. Our subcontract finder surfaces prime contractors with active subcontracting obligations who need diverse A-E firms on their teams.
Before you approach any prime or respond to a sources-sought notice, you need a tight one-page capability statement that leads with your NAICS codes, certifications, and your two or three strongest project examples. Our capability statement builder formats it the way contracting officers and primes expect to see it.
Your next stepRegister in SAM.gov under 541310, confirm which set-asides you qualify for, and write the capability statement before you chase a single opportunity. Then look at which primes already hold A-E contracts at the agencies that build in your region, and find the one whose subcontracting plan you can help fill. The subcontract finder is a reasonable place to start that search.
