Chicago Government Contracts — Procurement Guide
Researched by the BidStride Research Team
Chicago (population 2.7 million) awards approximately $5 billion [VERIFY] in contracts annually across construction, professional services, technology, and operations. Solicitations are posted through the Chicago eProcurement (iSupplier), and vendor registration is required to submit bids.
Businesses operating in Chicago must obtain a business license. All businesses operating in Chicago must obtain a Business License from the City of Chicago Department of Business Affairs and Consumer Protection (BACP). Specific trades require additional licenses. Construction contractors need applicable Illinois state licenses and Chicago-specific trade licenses.
Procurement Portal
- Portal Name
- Chicago eProcurement (iSupplier)
- Annual Budget
- $5 billion [VERIFY]
Certifications
- MBE — Minority Business Enterprise
- WBE — Women Business Enterprise
- BEPD — Business Enterprise owned by People with Disabilities
- VBE — Veteran-Owned Small Local Business
- DBE — Disadvantaged Business Enterprise
What are the bidding thresholds in Chicago?
Micro Purchase
Up to $10,000 (direct purchase without competition)
Small Purchase
$10,001 - $100,000 (informal quotes required)
Competitive Bidding
Above $100,000 (competitive sealed bidding per Municipal Code §2-92)
Chicago procurement is governed by the Municipal Code of Chicago §2-92. Below the small purchase threshold, simplified procedures apply. Above the competitive threshold, formal Invitation for Bids (IFB) or Request for Proposals (RFP) are required with public advertising. Professional services may use qualifications-based selection. The City Council Committee on Contracting Oversight reviews large contracts.
Does Chicago give local businesses a bidding preference?
Chicago Business Preference
Under Municipal Code §2-92-412, businesses located in Chicago receive a bid preference on city solicitations.
Benefit: 2% bid preference for Chicago-based businesses
Chicago Residency Hiring Requirement
City contractors must use best efforts to hire Chicago residents. Certain contracts require a minimum percentage of work hours by Chicago residents (Municipal Code §2-92-330).
Benefit: 50% of total work hours on city-funded construction projects must be performed by Chicago residents [VERIFY current percentage]
MBE/WBE Participation Goals
The city sets MBE (26%), WBE (6%), and BEPD (2%) participation goals on most contracts above $25,000.
Benefit: Subcontracting goals provide significant work opportunities for certified firms
Mid-Sized Business Initiative
Program to help mid-sized businesses (under $50M revenue) compete for city contracts through mentoring and targeted outreach.
Benefit: Access to procurement mentoring and targeted solicitation notifications
Which Chicago agencies spend the most on contracts?
These are the highest-volume purchasing agencies within Chicago city government. Targeting the ones most relevant to your capabilities will yield the best results.
Chicago Department of Procurement Services (DPS)
Manages procurement for all city departmentsCentral procurement authority for the City of Chicago. Manages competitive solicitations, certifications, and contract compliance.
Visit agency siteChicago Department of Transportation (CDOT)
$1+ billion [VERIFY]Manages streets, bridges, traffic signals, and transportation infrastructure.
Visit agency siteChicago Department of Water Management (DWM)
$1+ billion [VERIFY]Manages one of the world's largest water systems. Procures construction, engineering, and maintenance services.
Visit agency siteChicago Department of Aviation (CDA)
$2+ billion [VERIFY]Operates O'Hare and Midway airports. Major construction spending on terminal modernization (O'Hare 21 program).
Visit agency siteChicago Public Schools (CPS)
$2+ billion [VERIFY]Third-largest school district in the US. Separate procurement for construction, IT, supplies, and services.
Visit agency siteWhat bonding and insurance does Chicago require?
Bonding Requirements
- Bid Bond
- 5-10% of bid amount on construction contracts
- Performance Bond
- 100% of contract value for construction contracts over $50,000 [VERIFY threshold]
- Payment Bond
- 100% of contract value for construction contracts (per Illinois Public Construction Bond Act, 30 ILCS 550/)
Bonds required on construction contracts over $50,000. The city may require bonds on large service contracts at its discretion.
Insurance Requirements
- General Liability
- $1 million per occurrence / $2 million aggregate (minimum; higher for large projects)
- Workers' Comp
- Required per Illinois Workers' Compensation Act (820 ILCS 305/). Statutory limits.
Commercial Auto Liability ($1M), Professional Liability ($1-2M for professional services), Umbrella/Excess ($5-10M on large projects). City of Chicago must be named as Additional Insured. Contractors must maintain coverage throughout the contract term and provide 30-day notice of cancellation.
How do I protest a Chicago contract award?
- Filing Deadline
- Within 5 business days after the basis for the protest is known or should have been known [VERIFY]
- Filing Body
- Chief Procurement Officer (CPO) of the Department of Procurement Services
- Process
- Protests must be filed in writing with the Chief Procurement Officer within the deadline. The CPO reviews and issues a written decision. The protest must identify the solicitation, state the grounds, and include supporting evidence. Appeals from the CPO's decision may be taken to the City Council Committee on Contracting Oversight or through judicial review.
What special rules apply to Chicago contracts?
- Prevailing Wage: All city public works contracts require prevailing wages per the Illinois Prevailing Wage Act (820 ILCS 130/). The Illinois Department of Labor publishes prevailing wage rates by county.
- Inspector General Oversight: The Chicago Office of Inspector General (OIG) has authority to investigate fraud, waste, and abuse in city contracting. Contractors must cooperate with OIG investigations.
- Economic Disclosure Statement (EDS): All bidders on city contracts must complete an EDS disclosing ownership, lobbyists, and potential conflicts of interest. Required for contracts over $25,000 [VERIFY].
- MacBride Principles Ordinance: City contractors must not discriminate on the basis of religion in Northern Ireland operations (Municipal Code §2-92-580).
- Debarment: The CPO can debar contractors for contract violations, fraud, or performance failures for up to 5 years.
- Chicago Clean Jobs Workforce Ordinance: May require commitments to hiring from disadvantaged communities for certain clean energy and infrastructure projects. [VERIFY current status]
Key statistics about Chicago government contracting
- Chicago awards approximately $5 billion in contracts annually across city departments and sister agencies. [VERIFY]
- Chicago's MBE/WBE program sets goals of 26% MBE and 6% WBE participation on most city contracts above $25,000.
- The O'Hare 21 modernization program represents over $8.5 billion in airport construction contracts. [VERIFY]
- Chicago requires 50% of work hours on city-funded construction projects to be performed by Chicago residents. [VERIFY]
- The Illinois Prevailing Wage Act applies to all city public works contracts regardless of dollar value.
What other agencies award contracts in the Chicago area?
Beyond Chicago city government, these satellite agencies and special districts operate in the metro area and have their own procurement processes. Many award billions in contracts independently.
Education
Chicago Public Schools (CPS)
$9.5 billionThird largest school district in the US — 340,000 students across 600+ schools.
Separate taxing body from the city. Large capital improvement program. MBE/WBE goals (26%/6%).
Transit
Chicago Transit Authority (CTA)
$3.6 billionOperates the L (elevated/subway) and bus system — second largest transit system in the US.
Red and Purple Modernization (RPM) is a $2.1B capital project. DBE/MBE/WBE requirements. Uses BidBuy system.
Metra (Commuter Rail Division of RTA)
$1.2 billion [VERIFY]Commuter railroad serving 11 lines across the Chicago metropolitan area.
Separate from CTA. Operates under the Regional Transportation Authority (RTA). DBE requirements.
Pace Suburban Bus
$600 million [VERIFY]Suburban bus and paratransit service for the Chicago suburbs.
Separate from CTA and Metra. Part of RTA system. ADA paratransit services are a major contract category.
Housing
Chicago Housing Authority (CHA)
$1.5 billion [VERIFY]Manages public housing and Housing Choice Voucher program — 50,000+ households served.
Plan for Transformation converting high-rises to mixed-income communities. Section 3 and MBE/WBE requirements.
Water & Sewer
Metropolitan Water Reclamation District of Greater Chicago (MWRD)
$1.3 billionTreats wastewater for 5.25 million residents across Cook County. Operates world's largest wastewater treatment plant.
Separate elected governing board. Tunnel and Reservoir Plan (TARP / 'Deep Tunnel') is a multi-billion dollar infrastructure project. MBE/WBE goals.
Airport
Chicago Department of Aviation (CDA)
$2.5 billion [VERIFY]Operates O'Hare (ORD) and Midway (MDW) airports. O'Hare is one of the busiest airports in the world.
O'Hare 21 modernization program is a $12B+ capital program. Terminal area plan, runway improvements. Uses City of Chicago procurement system.
Port
Illinois International Port District
$50 million [VERIFY]Operates the Port of Chicago at Lake Calumet and Iroquois Landing on the Calumet River.
Smaller port operation compared to coastal cities. Handles bulk cargo and grain exports. State-created body.
University
City Colleges of Chicago
$750 million [VERIFY]Seven community colleges serving 80,000+ students across the city.
Separate taxing district. Capital improvement programs for campus modernization.
University of Illinois Chicago (UIC)
$3.5 billion (total)Largest university in the Chicago area — 34,000 students, major medical center.
Part of University of Illinois system. UI Health medical center drives significant procurement. Uses Illinois BidBuy and university systems.
Hospital & Healthcare
Cook County Health (CCH)
$4 billionPublic health system operating Stroger Hospital, Provident Hospital, and community health centers.
Part of Cook County government but operates with significant independence. CountyCare Medicaid managed care plan drives revenue.
Convention Center
McCormick Place / Metropolitan Pier and Exposition Authority (MPEA)
$500 million [VERIFY]Largest convention center in North America — 2.6 million sq ft of exhibit space.
Also oversees Navy Pier expansion and Wintrust Arena. MBE/WBE goals. Separate from city government.
Parks
Chicago Park District
$600 millionLargest municipal park manager in the US — 8,800 acres, 600+ parks, 26 miles of lakefront.
Separate taxing body from the city. Manages harbors, beaches, fieldhouses, pools, and Soldier Field. MBE/WBE goals.
Frequently Asked Questions — Chicago Government Contracting
Chicago posts solicitations on Chicago eProcurement (iSupplier) (https://www.chicago.gov/city/en/depts/dps/provdrs/eprocurement.html). You need to register as a vendor to receive bid notifications and submit responses. Individual departments like Chicago Department of Procurement Services (DPS) may also post opportunities on their own sites.
Chicago recognizes several certifications that provide bid preferences and access to set-aside programs. Minority Business Enterprise (MBE), Women Business Enterprise (WBE), Business Enterprise owned by People with Disabilities (BEPD), Veteran-Owned Small Local Business (VBE), Disadvantaged Business Enterprise (DBE) are the most common. Each certification has specific eligibility requirements and benefits.
Above $100,000 (competitive sealed bidding per Municipal Code §2-92). Chicago procurement is governed by the Municipal Code of Chicago §2-92. Below the small purchase threshold, simplified procedures apply. Above the competitive threshold, formal Invitation for Bids (IFB) or Request for Proposals (RFP) are required with public advertising. Professional services may use qualifications-based selection. The City Council Committee on Contracting Oversight reviews large contracts.
Chicago generally processes payments within 30 days. Chicago's prompt payment policy targets 30-day payment from receipt of proper invoice. The Illinois Local Government Prompt Payment Act (50 ILCS 505/) requires local governments to pay within 30 days or face interest penalties at 1% per month. Retainage on construction is typically 10% until substantial completion, then reduced to 5%.
Track Chicago contract opportunities with BidStride
BidStride monitors Chicago eProcurement (iSupplier) and 50+ other state, county, and federal sources daily. Get matching Chicago contracts delivered to your inbox every morning.
Free plan: 5 alerts/month. Scout: unlimited. No commitment.
Disclaimer: BidStride provides procurement information and tools — not legal or financial advice. This guide is for informational purposes only and does not create a professional relationship. Verify all thresholds, requirements, and deadlines directly with Chicago procurement offices before bidding.
Looking at state-level contracts?
Back to Illinois procurement guide →