Where to bid on Illinois government contracts

Official portal

Illinois BidBuy

Register through BidBuy (powered by Periscope) for state contract opportunities. Vendor registration is required to submit bids.

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Small-business programs

  • Business Enterprise Program (BEP) — MBE, WBE, VBE, PBE certifications

Statutory reference

Illinois Procurement Code (30 ILCS 500/)

Illinois has aggressive BEP utilization goals — 30% of state contracts to minority, women, veteran, and persons-with-disabilities owned firms.

See our complete Illinois procurement guide for full registration walk-through and portal-by-portal details.

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Latest Opportunities in Illinois

14 days left Jul 27, 2026

Housing Locator Website RFP (Reissue)

Housing Locator Website RFP (Reissue)

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JPMC MMCAP RFP# 37259 Medical Supplies

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EMERGENCY NOTICE IDNR Frank Holten State Park - Golf Course Irrigation System ACV Valve Repair

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Emergency Notice - Illinois Vital Records System Maintenance

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Emergency Notice Courier Services2

Emergency Notice Courier Services2

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EMEREGENCY NOTICE Abbott HIV/Syphilis Reagents

EMEREGENCY NOTICE Abbott HIV/Syphilis Reagents

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Emergency Notice - Hantavirus Testing

Emergency Notice - Hantavirus Testing

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Emergency Notice - Pharmaceutical Destruction

Emergency Notice - Pharmaceutical Destruction

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Temporary Employee Services - Rebid

Temporary Employee Services - Rebid

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Emergency Notice - ALPLM - ETC Track Lights for Citizen City Exhibit

Emergency Notice - ALPLM - ETC Track Lights for Citizen City Exhibit

Due tomorrow Jul 14, 2026

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Emergency Notice for Smarty Branded US Rooftop Geocoding, Enterprise Cloud Lice

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Emergency Notice - Halal Meals

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VARIOUS OFFICE FURNITURE

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EMERGENCY NOTICE: FY26/27 IVHC Pharmacy Services

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EMERGENCY NOTICE - DNR Horseshoe Lake SP Pump Station Sheet Pile Material

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EMERGENCY NOTICE: FY26/27 TEMP. NURSING STAFF (CNAs & PLNs)

EMERGENCY NOTICE: FY26/27 TEMP. NURSING STAFF (CNAs & PLNs)

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RR-26-9315 - Veterans Mem'l Tollway (I-355) Building Improv at Central Admin Build MP 19.8

RR-26-9315 - Veterans Mem'l Tollway (I-355) Building Improv at Central Admin Build MP 19.8

69 days left Sep 20, 2026

NOT A BIDDING OPPORTUNITY Emergency Notice FY26 Shapiro Chiller Rental Unit 514

NOT A BIDDING OPPORTUNITY Emergency Notice FY26 Shapiro Chiller Rental Unit 514

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EMA - Emergency Notice for Ford Vehicles

About Illinois government procurement

Illinois public procurement is centralized under the Chief Procurement Officer (CPO) structure created by the 2009 Procurement Code overhaul. Four independent CPOs cover distinct domains — Higher Education (universities), General Services (executive agencies), Transportation (IDOT), and Capital Development Board — and each publishes solicitations through the BidBuy platform, powered by Periscope (Perfect Commerce). All state-agency RFPs, IFBs, and RFQs over $100,000 flow through BidBuy, along with lower-dollar work from agencies that opt in. Illinois state agencies awarded approximately $18 billion in commodities, professional services, construction, and IT contracts in FY24.

Illinois has among the most aggressive diversity-participation goals in the country. The Business Enterprise Program (BEP) targets 30% of state contract dollars to certified Minority (MBE), Women (WBE), Veteran (VBE), and Persons-with-Disabilities (PBE) owned firms. Prime bidders must submit a Utilization Plan showing certified BEP subcontractors or file for a good-faith-effort waiver. Certification is through the Commission on Equity and Inclusion (CEI). Beyond BEP, Illinois enforces separate goals on the Illinois Tollway (30% DBE) and the Chicago Public Schools system (varying by contract).

The Illinois Department of Transportation (IDOT) is the largest state buyer by dollar volume, with roughly $2.5 billion in annual construction lettings for highway, bridge, and rail work. IDOT publishes a monthly letting schedule at idot.illinois.gov; bidders must be pre-qualified through the IDOT Prequalification of Contractors process before bidding on any project over $250,000. The Capital Development Board (CDB) manages state-facility construction — universities, prisons, courts, agencies — and typically lets 200+ contracts annually. Metra (commuter rail), CTA (Chicago Transit Authority), and the Illinois Tollway operate independently with heavy federal-aid procurement carrying Buy America and DBE goals.

City of Chicago procurement is entirely separate from the state system, run through the Department of Procurement Services (DPS) and eProcurement at chicago.gov/procurement. Chicago Public Schools uses its own vendor portal. Cook County, DuPage County, and other large counties each maintain independent systems, and municipal work often runs through Bonfire, DemandStar, and PlanetBids. Emerging demand: Rebuild Illinois capital-plan spending on transportation, education, and broadband continues through 2029; IDOT and CDB carry a materially expanded backlog. Cyber and cloud modernization at the Department of Innovation and Technology (DoIT) is driving IT services demand.

Largest Illinois state buyers

The largest Illinois state buyers are the Illinois Department of Transportation (IDOT — $2.5B+ annual highway lettings), Capital Development Board (state-facility construction), Department of Central Management Services (CMS — commodities, IT, professional services), Department of Innovation and Technology (DoIT — IT modernization), Illinois State Toll Highway Authority (Tollway), the University of Illinois System (three campuses plus health system), Illinois Department of Human Services (HHS), and Department of Corrections. Metra (commuter rail) and Chicago Transit Authority (CTA) are large transit buyers. City of Chicago DPS, Chicago Public Schools, and Cook County together add another multi-billion procurement layer that runs outside the state BidBuy system.

Vendor rules that matter in Illinois

Register on BidBuy (bidbuy.illinois.gov) for state-agency solicitations. IDOT bidders must complete Prequalification of Contractors before bidding on projects over $250K — the prequalification process reviews financial capacity, past performance, and equipment. BEP certification for MBE/WBE/VBE/PBE is through the Commission on Equity and Inclusion (illinois.gov/cei). Illinois State prevailing wages apply to public works and are enforced by the Department of Labor; wage schedules change annually and are posted county-by-county. Chicago has separate MBE/WBE certification and a City residency preference on many contracts. Prompt-payment provisions in the State Finance Act require agencies to pay within 90 days or accrue interest, with a 60-day standard for many procurement categories.

Illinois Procurement — Frequently Asked Questions

How many government bids are open in Illinois right now?

There are 3,772 open procurement opportunities in Illinois from 17 state, county, city, school, hospital, and university agencies as of July 14, 2026. 61 of them close within the next seven days.

Which Illinois agencies post the most bids?

The top agencies posting bids in Illinois right now are Illinois BidBuy, City of Chicago Contracts, Cook County, IL Awarded Contracts, Cook County, IL Intent to Award, Cook County, IL Bid Tabulations. Each maintains its own vendor portal and posting schedule.

Where do I register to bid on Illinois government contracts?

Register on Illinois BidBuy (https://www.bidbuy.illinois.gov/) for state-level opportunities. Register through BidBuy (powered by Periscope) for state contract opportunities. Vendor registration is required to submit bids. For federal contracts, register on SAM.gov (free; assigns a UEI). For local agencies, registration is on the platform they use — Bonfire, PlanetBids, BidNet Direct, DemandStar — typically one registration per platform covers all agencies using it.

What industries dominate Illinois procurement?

The most-active industries in Illinois government procurement right now are Construction, Information Technology, Professional Services. Browse each by industry to see current opportunities filtered to Illinois.

What small-business or set-aside programs does Illinois offer?

Illinois operates the following preference and set-aside programs: Business Enterprise Program (BEP) — MBE, WBE, VBE, PBE certifications. Each has its own certification process; check the state procurement office for eligibility details.

What law governs procurement in Illinois?

Illinois procurement is governed by Illinois Procurement Code (30 ILCS 500/). This includes bid solicitation, contract award, and vendor protest procedures. The state procurement office publishes implementing regulations and manuals.

How do I find upcoming Illinois bid opportunities?

Save a search on ProcureTap filtered to Illinois to receive email alerts when new bids match your criteria. You can also subscribe to the state's official portal notifications. Larger agencies (state DOT, department of general services) publish quarterly forecasts of upcoming solicitations.

How often are new Illinois bids added?

Every six hours. ProcureTap re-scrapes the Illinois state procurement portal plus every county, city, school district, hospital, and university procurement system in the state on a six-hour cadence, so new postings appear here within hours of being published.

Does Illinois require in-state vendors for procurement contracts?

Illinois generally does not restrict bidding to in-state vendors, but many agencies offer local-preference points or ties-broken-in-favor-of-local scoring, and some contracts under specific dollar thresholds may be limited to registered Illinois vendors or certified Illinois small businesses. Read each solicitation's evaluation criteria carefully.

How do I register as a vendor in Illinois?

Register on BidBuy (bidbuy.illinois.gov) — the Illinois procurement platform powered by Periscope. Registration is free and covers all state-agency solicitations over $100,000. For BEP certification (MBE/WBE/VBE/PBE), apply through the Commission on Equity and Inclusion at illinois.gov/cei. For the City of Chicago, register separately on eProcurement at chicago.gov/procurement. Illinois Department of Transportation bidders must also complete IDOT Prequalification of Contractors before bidding construction.

What is the Illinois Business Enterprise Program (BEP)?

BEP targets 30% of state contract dollars to certified Minority (MBE), Women (WBE), Veteran (VBE), and Persons-with-Disabilities (PBE) owned firms. Prime contractors on state contracts must submit a Utilization Plan or file a good-faith-effort waiver. Certification is state-controlled through the Commission on Equity and Inclusion. BEP does not apply to Chicago, Chicago Public Schools, or Cook County — each has separate MBE/WBE programs.

How do IDOT construction lettings work?

The Illinois Department of Transportation publishes a monthly letting schedule at idot.illinois.gov with bid opening dates typically 6–8 weeks after advertisement. Bidders must be pre-qualified through IDOT Prequalification of Contractors before bidding projects over $250,000. Bids are sealed unit-price on a defined bill of quantities; award goes to the lowest responsive pre-qualified bidder. Federal-aid projects add Davis-Bacon wages, Buy America iron/steel, and DBE subcontracting goals typically 12–15%.

Does the City of Chicago use BidBuy?

No. Chicago procurement is entirely separate from the Illinois state system. The City of Chicago Department of Procurement Services (DPS) runs its own eProcurement platform at chicago.gov/procurement. Chicago Public Schools uses its own vendor portal. Cook County, the CTA, and the Chicago Park District each operate independent procurement systems. Vendors targeting Chicago work should register on each agency's platform separately.

What are the Rebuild Illinois procurement opportunities?

Rebuild Illinois is the state's $45B capital plan (2019–2025 extended into 2029) covering transportation, education facilities, environmental infrastructure, broadband, and state facilities. IDOT and the Capital Development Board carry the largest expanded procurement pipelines. Broadband awards flow through the Illinois Office of Broadband and the Connect Illinois grant program. Vendors targeting Rebuild Illinois work should watch IDOT monthly lettings, CDB solicitations, and state grant-program awards.

How do school district bids work in Illinois?

Illinois has 852 school districts (the highest count in the US after Texas). Districts issue their own RFPs for food services, transportation, construction, IT, curriculum, and consulting. Most use Bonfire, PlanetBids, DemandStar, or paper solicitations. The Illinois Purchasing Group aggregates many district bids and is a common vendor entry point. School construction projects over $50K are governed by the Illinois School Code and require prevailing wage compliance.

How often are Illinois state and local bids posted on ProcureTap?

ProcureTap re-scrapes BidBuy, IDOT lettings, CDB solicitations, City of Chicago eProcurement, Chicago Public Schools, Cook County, and every Illinois county, city, school district, hospital, and university procurement system on a 6-hour cadence. New Illinois bids from any source appear here within hours of publication.

Written by the ProcureTap procurement research team. Last reviewed .

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