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Government contracts for engineering services in Illinois
A snapshot of open federal, state, and local opportunities in Illinois, updated daily. To search them and get daily matches for your business, sign up free.
About engineering services contracts in Illinois
Engineering services contracts in Illinois typically cover roadway and bridge design, construction engineering and inspection, water and wastewater system design, geotechnical investigations, stormwater and drainage studies, traffic engineering, and multi-year on-call engineering services agreements. Federal posts in this category fall under NAICS 541330 (Engineering Services), the largest professional-services classification in government contracting, and the bulk of the work flows to the U.S. Army Corps of Engineers, DoD installations, the GSA, and state Departments of Transportation. Engineering procurements typically follow qualifications-based selection under the Brooks Act and state mini-Brooks statutes, and many on-call pools are set aside for 8(a), SDVOSB, and DBE-certified firms.
Illinois currently has 31 open engineering services contracts in our database, with 22 added in the last 30 days. That's enough volume that a focused small business can win recurring work in this state without ever leaving its home market. The most active buyers are DEPT OF THE ARMY (9 open posts) and THA - Toll Highway Authority (6), with the rest spread across other federal civilian agencies, DoD components, and state and local departments active in Illinois.
Beyond federal opportunities, much of the engineering services work in Illinois is posted through the Illinois Procurement Bulletin (BidBuy), with recurring buyers including the Illinois Department of Transportation, the University of Illinois system, and the Illinois Tollway. Illinois requires BEP (Business Enterprise Program) certification for minority-, women-, and veteran-owned firms to access targeted set-aside spend. ContractRadar pulls federal postings from SAM.gov alongside state and local feeds so an engineering firm doesn't have to monitor each portal manually.
Top matching contracts in Illinois
Glendale Avenue Flood Improvement Project
The City of Wheaton, Illinois is seeking sealed bids from qualified contractors for the Glendale Avenue Flood Improvement Project. This project includes grading, approximately 25 linear feet of drivew…
FLOSSMOOR ROAD VIADUCT STORM SEWER IMPROVEMENTS, FLOSSMOOR, COOK COUNTY, ILLINOIS
This Pre-Solicitation Notice is being issued by the United States Army Corps of Engineers- Chicago District to inform interested vendors of the district?s intent to issue a solicitation for Flossmoor …
VILLAGE OF EAST HAZEL CREST STORMWATER IMPROVEMENTS, EAST HAZEL CREST, COOK COUNTY, ILLINOIS (USACE ACQUISITION)
This Pre-Solicitation Notice is being issued by the United States Army Corps of Engineers- Chicago District to inform interested vendors of the district?s intent to issue a solicitation for Village of…
VILLAGE OF EAST HAZEL CREST STORMWATER IMPROVEMENTS, EAST HAZEL CREST, COOK COUNTY, ILLINOIS (USACE ACQUISITION)
This Pre-Solicitation Notice is being issued by the United States Army Corps of Engineers- Chicago District to inform interested vendors of the district?s intent to issue a solicitation for Village of…
Professional Engineering Services
NOTICE TO BIDDERS The City of Elgin hereby invites bidders for the following: RFP 26-037 “Professional Engineering Services”. The City of Elgin requests proposals from qualified firms to provide p…
City of Wheaton Art Wall Footing & Paver Restoration Project
The City of Wheaton is seeking a qualified and experienced Contractor to furnish all labor, materials, equipment, supervision, testing, coordination, and incidentals necessary to complete the improvem…
Demolition of Structure at 512 N. Broadway
The City is looking to demolish an approximately 6,500 SF single story wood and light gauge metal frame structure with slab on grade and a metal roof. Also included in the scope, disconnection of the …
RFP 26-38 Water Plant Electrical Systems Assessment
The City of Evanston’s Public Works Agency is seeking proposals from experienced firms for: Professional engineering services to perform a comprehensive assessment of the Evanston Water Plant's elect…
City of Wheaton Wells and Storage Study Re-Bid
The City of Wheaton is seeking proposals from qualified engineering firms to conduct a comprehensive Emergency Well and Storage Expansion Study. The study follows a 2026 Risk- Based Water System Analy…
Illinois River Basin, Brandon Road L&D, Joliet, Illinois, Flushing Lock and Dam Gates Fabrication
The U.S. Army Corps of Engineers anticipates issuing a Request for Proposal (RFP) with the intent of awarding a Firm-Fixed-Price contract for the fabrication and supply of ten Fiber Reinforced Polymer…
Illinois River Basin, Brandon Road L&D, Joliet, Illinois, Flushing Lock and Dam Gates Fabrication
The U.S. Army Corps of Engineers anticipates issuing a Request for Proposal (RFP) with the intent of awarding a Firm-Fixed-Price contract for the fabrication and supply of ten Fiber Reinforced Polymer…
Euclid Avenue Shared-Use Path Project
This project consists of installing a new accessible 8’ wide HMA shared-use path on the south side of Euclid Avenue. This work includes earth excavation, ditch grading, pipe underdrain installation, H…
PRESOLICITATION NOTICE FOR INDEFINITE DELIVERY, INDEFINITE QUANTITY, MULTIPLE AWARD TASK ORDER CONTRACT FOR VARIOUS SMALL CONSTRUCTION PROJECTS IN ILLINOIS AND INDIANA
The Chicago District, U.S. Army Corps of Engineers intends to procure an Indefinite Delivery Indefinite Quantity Contract for Various Small Construction Projects in Illinois and Indiana. Each contract…
Village of Roanoke, IL Sanitary Sewer Lining Improvements
Subcontracting Opportunities include but are not limited to: 1. Sewer Cleaning and CCTV Inspection 2. Traffic Control 3. Bypass Pumping
Lead Water Service Replacements
The project includes, but is not limited to, the following bid items: 22 lead water service line replacements. The Work shall be constructed in accordance with the Lead Water Service Replacements date…