Closed bids
Bid Banana holds 150+ closed Illinois engineering services solicitations. These are the 50 that closed most recently. In the last 12 months, the most Illinois engineering services bids closed in September 2026 (25); the agencies behind the most of the 50 most recent were U.S. Department Of Defense, U.S. Department Of Energy and City of Wheaton.
The U.S. Army Corps of Engineers is seeking innovative solutions for various areas of interest, including materials and structures…
The Illinois State Toll Highway Authority has issued Professional Services Bulletin 26‑4, a QBS solicitation for 14 Phase II engineering…
The City of Elgin Utilities Department seeks a qualified engineering firm to conduct a comprehensive PFAS treatment optimization study at…
The City of St. Charles is seeking qualified firms to perform thermographic inspections of its electric distribution system. This work…
The Village of Mount Prospect is seeking qualified civil engineering firms to review private development site plans for compliance with…
This amendment is a fourth change order to the existing Facilities Design Services contract (originally awarded to AAA Engineering, LTD for…
The City of Wheaton is soliciting a qualified engineering firm to perform a comprehensive Emergency Well and Storage Expansion Study. The…
The Village of Wilmette is seeking proposals for comprehensive Construction Inspection Services to ensure compliance with design…
The City of Wheaton is soliciting qualified engineering firms to perform a comprehensive Emergency Well and Storage Expansion Study. This…
The Illinois State Toll Highway Authority is seeking a qualified consultant (or team) to provide a Program Management Office (PMO) and…
The Chicago Housing Authority is seeking a qualified firm to commission fire‑alarm systems across eight senior‑housing buildings. The…
The State of Illinois Department of Corrections is seeking a vendor to perform on‑site flow testing of self‑contained breathing apparatus…
The City of St. Charles is seeking qualified vendors to design, supply, install, and provide training for a fully integrated, real‑time…
The Department of Energy’s Fermi National Accelerator Laboratory (Fermilab) is seeking a firm‑fixed‑price proposal for a single…
The City of Urbana is seeking a qualified vendor to create a comprehensive GIS file geodatabase that maps all impervious surfaces…
The City of Chicago’s Department of Aviation is seeking a qualified contractor to provide full‑life‑cycle support and maintenance for its…
The City of Wheaton is soliciting qualified engineering firms to produce a comprehensive Emergency Well and Storage Expansion Study…
This Sources‑Sought notice seeks qualified firms to provide a firm‑fixed‑price, base‑plus‑four‑option‑year contract for comprehensive…
The City of Palos Heights Department of Public Works is seeking qualified professional engineering firms to provide comprehensive…
The City of Evanston’s Public Works Agency seeks a qualified engineering firm to conduct a comprehensive assessment of the electrical…
This solicitation seeks quotations for the maintenance of the HKZ 150 bar high‑pressure crystal‑growth system (model A031) located at…
The Village of Mount Prospect seeks a qualified contractor to provide construction inspection and engineering services for a new…
The City of Wheaton is soliciting a qualified engineering firm to provide comprehensive professional engineering services for two municipal…
The City of Wheaton seeks a qualified engineering firm to provide comprehensive professional engineering services for two municipal parking…
The Federal Railroad Administration, via the Volpe Center, is issuing a combined synopsis/solicitation to award a firm‑fixed‑price contract…
Argonne National Laboratory is seeking a domestic supplier to provide a high‑purity deionized water system (IQ 7000) and associated…
The Riverfront Museum Park is seeking a qualified engineering consultant to fully assess, design, and replace its existing fire alarm system…
The City of Chicago is seeking a qualified vendor to provide a comprehensive five‑year services contract for the supply, testing…
The Chicago Housing Authority is seeking a qualified contractor to perform annual third‑party inspections of approximately 158 elevators…
The Fermi National Accelerator Laboratory (Fermilab) is seeking a firm‑fixed‑price proposal for a portable phased‑array ultrasonic flaw…
The Village of Schaumburg is seeking qualified consulting engineering firms to provide Phase I engineering services for the proposed…
FermiForward (Fermilab) is seeking a qualified contractor to provide ongoing cathodic protection maintenance for its underground natural gas…
The United States Air Force, 375th Air Mobility Wing at Scott AFB, Illinois, is conducting market research for the procurement, delivery…
This indefinite‑delivery‑indefinite‑quantity (IDIQ) contract calls for comprehensive maintenance, inspection, and repair services for the…
Argonne National Laboratory is issuing a Request for Quotation (RFQ) to procure a “FA Unit Test Bench.” The solicitation (ID…
This RFQ seeks quotations for the procurement, delivery, and integration of a suite of specialized environmental, meteorological, and…
The U.S. Army Corps of Engineers is issuing an IDIQ for comprehensive maintenance and repair of the Electric Fish Dispersal Barrier System…
The U.S. Army Corps of Engineers (USACE) Rock Island District is seeking a qualified small‑business contractor to provide annual…
The U.S. Army is seeking a qualified contractor to perform on‑site electrical maintenance and retrofit work on the Devlieg 4W72 milling…
The Village of Mount Prospect seeks qualified consultants to install and maintain flow‑monitoring equipment at three sanitary sewer basins…
The U.S. Army’s Rock Island Arsenal is soliciting a sole‑source, firm‑fixed‑price contract for preventive maintenance, calibration, remedial…
The Village of Glenview is seeking qualified firms to develop standards‑based indoor mapping for its schools, integrating public safety…
The City of Wheaton, Illinois is soliciting qualified material testing firms to provide hot‑mix asphalt (HMA) and Portland cement concrete…
The City of Wheaton is issuing a re‑bid RFP for material testing services to support both Motor Fuel Tax compliance and locally funded…
This solicitation seeks suppliers to provide a Polished Beryllium Window Cartridge, a high‑precision component typically used in scientific…
The City of Champaign is soliciting qualified firms to supply, install, configure, test, train staff on, and provide ongoing support for a…
The U.S. Army is seeking an ISO‑17025 accredited vendor to inspect, calibrate, and, when necessary, lap and repair the granite surface…
This solicitation seeks a 352‑MHz, 160‑kW solid‑state RF power system to be used in the Advanced Photon Source (APS) booster accelerator…
Argonne National Laboratory’s Center for Nanoscale Materials is seeking firm‑price quotations for a complete Optical Cryogenic Quantum…
