The US Army Corps of Engineers spends roughly $12 billion a year on contracts. A significant share of that goes to small businesses, and USACE has a legal obligation to meet small business and socioeconomic subcategory goals set by the Department of Defense. If your business does construction, engineering, or environmental work, USACE is one of the most reachable large federal buyers in the country.
Here is what you need to know to get started.
What USACE buys
USACE handles civil works and military construction across the United States and overseas. The civil works mission covers flood control, navigation, and environmental restoration. The military construction mission covers building and maintaining Army and Air Force installations.
The practical result is that USACE buys a lot of construction and engineering services. Top spend categories include:
- Construction of water infrastructure: dams, levees, locks, harbors, and waterways
- Military facility construction: barracks, hangars, warehouses, and training facilities
- Environmental remediation: cleanup of contaminated sites, often at former military installations
- Engineering and technical services: design, inspection, project management, and geotechnical work
- Dredging: channel maintenance for ports and inland waterways
Contract sizes range widely. Small business set-aside contracts often fall in the $250,000 to $5 million range. Larger unrestricted contracts can exceed $100 million. USACE also uses Indefinite Delivery/Indefinite Quantity (IDIQ) contracts heavily, which let them issue multiple task orders under a single award vehicle.
Primary NAICS codes
If you want to pursue USACE work, your SAM.gov registration and capability statement should reflect the NAICS codes that dominate USACE procurement:
- 237120 - Oil and Gas Pipeline and Related Structures Construction (used broadly for water and utility infrastructure)
- 237110 - Water and Sewer Line and Related Structures Construction
- 541330 - Engineering Services
Other relevant codes include 237990 (Other Heavy and Civil Engineering Construction), 562910 (Remediation Services), and 541620 (Environmental Consulting Services). Check USASpending.gov to see which codes appear most frequently in USACE awards in your specific region.
How to register and get into the ecosystem
Step 1: Get your SAM.gov registration current. You cannot receive a federal contract without an active registration at SAM.gov. Registration is free and takes one to two weeks on the first pass. Make sure your NAICS codes are listed accurately and your Small Business Administration (SBA) certifications are reflected.
Step 2: Obtain your relevant certifications. USACE set-asides target specific SBA-certified categories: 8(a), HUBZone, Women-Owned Small Business (WOSB), Service-Disabled Veteran-Owned Small Business (SDVOSB), and Small Disadvantaged Business (SDB). Each has different eligibility rules and application processes. SDVOSB verification now runs through SBA, not VA. If you qualify for multiple designations, get all of them. USACE contracting officers run separate competitions for each category.
Step 3: Register in the SBA's Dynamic Small Business Search (DSBS). Contracting officers search DSBS when planning set-asides. Fill in your profile completely, including capabilities narrative, past performance keywords, and geographic reach.
Step 4: Monitor SAM.gov for USACE solicitations. Set up a saved search filtered by agency (Army Corps of Engineers) and your NAICS codes. USACE posts Requests for Information (RFIs), Sources Sought notices, and full solicitations. Responding to Sources Sought notices is free and gets your name in front of the contracting office before a competition opens.
Set-aside and diversity opportunities
USACE runs structured small business programs aligned with DoD policy. The agency has specific goals for 8(a), HUBZone, WOSB, and SDVOSB set-asides, and contracting officers track performance against those goals throughout the fiscal year.
8(a) Program: USACE can sole-source contracts up to $4.5 million (construction) or $4 million (services) to 8(a)-certified firms without competition. Above those thresholds, they run competitive 8(a) solicitations. If you have an 8(a) certification, this is often the fastest path to a first contract.
HUBZone: USACE operates nationwide, including in many economically distressed areas that qualify for HUBZone status. If your business is located in a HUBZone and your employees meet the residency requirement, this certification opens set-aside competitions with a 10 percent price evaluation preference in full-and-open competitions.
SDVOSB: Military construction projects frequently carry SDVOSB set-asides. Veteran-owned firms with SBA verification should watch installation-specific procurement forecasts, which USACE districts publish quarterly.
WOSB/EDWOSB: Women-owned small business set-asides are available in NAICS codes where the SBA has determined WOSBs are underrepresented. Several construction and engineering codes qualify.
Mentor-Protégé Program: The SBA's All Small Mentor-Protégé program lets you pair with a larger prime contractor. This is worth pursuing if you want access to larger USACE contracts where joint ventures are evaluated. USACE primes actively recruit protégés because mentor-protégé joint ventures can compete on set-asides.
Who to contact at USACE
USACE operates through a network of divisions and districts. The agency has a headquarter Small Business Program office in Washington, D.C., and each district has a dedicated Small Business Specialist (sometimes called an OSDBU representative or District Small Business Advisor). These specialists help small firms understand upcoming opportunities, navigate the registration process, and connect with prime contractors.
Find the Small Business Specialist for the district covering your geography through the USACE website at usace.army.mil. The district structure maps to geography: for example, the New Orleans District handles Gulf Coast civil works, and the Fort Worth District covers much of the South-Central region. Each district page lists contact information for the small business office.
Introduce yourself by email with a short capabilities statement, your NAICS codes, your certifications, and examples of relevant past performance. Keep the first message to three or four sentences. Contracting specialists receive a lot of inbound; a specific, readable message gets a response. A vague one does not.
One practical tip for a first contract
Target a USACE district Architect-Engineer (A-E) IDIQ. USACE issues hundreds of A-E task order contracts annually under the Brooks Act, and these competitions are evaluated on qualifications, not price. Small businesses are common winners because evaluated factors include team composition and past performance on comparable projects rather than lowest bid.
Find open A-E solicitations on SAM.gov by searching for USACE combined with NAICS 541330. Many are structured as set-asides, and award sizes are often $1 million to $5 million in total ceiling, with individual task orders in the $50,000 to $500,000 range. A single A-E IDIQ gives you a vehicle to build past performance, which is the most frequently cited barrier to winning larger federal work.
Past performance on a USACE A-E IDIQ is also transferable to other federal agencies. Once you have it, you cite it everywhere.
