City of Darien bids, RFPs and contracts
Darien, IllinoisPop. 22,032 · darien.il.us- Latest pre-RFP
- Oct 5, 2026
- 28 days ago
- Pre-RFPs
- 57
- 5 in the last 30 days
- Open bids
- 10+
- Next due Nov 12
- Contracts
- 10,648
- 1,387 vendors
The 30-second brief
57 pre-RFPs (projects, hiring and grants) found in City of Darien's meetings, most in public safety and infrastructure & maintenance. The latest, from Oct 5: The council was asked to approve a $20,523.53 ammunition purchase from Kiesler's Police Supply for the police department. The memo says Kiesler's had the state contract and was the sole source for the order, and the package included 9mm, .223 REM, and .40 S&W ammunition plus a $4,200 department credit. This is a decided procurement with no open bid, but it gives the incumbent a clear replenishment and training follow-on opportunity.
Capital Projects leads its tracked contracts and projects, followed by Public Works and Environmental Services.
10+ open RFPs, the next due Nov 12. Latest awards: CINTAS for darien Approves Cintas First-Aid Supply Payment ($316.05, Oct 2026) and Ray O'herron Company Inc for darien Approves Ray O’Herron Police Uniform Purchase ($170.64, Oct 2026).
5 new pre-RFPs at City of Darien this month. Get the ones that fit you, free.
Get Illinois pre-RFPs freeFree account · 30-second setup · No credit card
Pre-RFP projects
Projects, hiring and grants found in City of Darien's meetings, before they turn into RFPs.
Open bids and RFPs
Solicitations City of Darien is accepting responses to now.
Vendors and contracts
Who City of Darien buys from, taken from council records. 10,648 contracts with 1,387 vendors.
Who decides
Procurement leads, department heads and budget holders at City of Darien.
Questions about City of Darien
How do I become an approved vendor for City of Darien?
City of Darien currently works with 1,387 vendors across contract types including SUPPLIES, PROFESSIONAL_SERVICES, MAINTENANCE, LEGAL, and OTHER. Start by reviewing their procurement guidelines and vendor registration requirements. There are 199 known contacts at this agency to help you find the right point of entry. Getting in early — before opportunities go to formal bid — gives you a significant edge.
How do I win a contract with City of Darien?
Small purchases under IL's simplified acquisition threshold can be awarded directly — no formal bidding required. Top procurement categories include Capital Projects (1,577), Public Works (1,430), and Environmental Services (260), so these are the areas most likely to have upcoming spend. The key is timing: reach the right department head while they're still scoping the project, not after the RFP is already live. Monitoring what agencies are discussing and spending on helps you start conversations before the competition.
Where does City of Darien publish RFPs?
City of Darien publishes formal RFPs on its official website and IL's state procurement portal. We're currently tracking 37 solicitations from City of Darien. The most active RFP sectors are Capital Projects, Public Works, Environmental Services. Aggregating all sources into one place ensures you never miss an opportunity.
Who makes purchasing decisions at City of Darien?
At City of Darien, purchasing decisions are overseen by the city manager or mayor's office, with department heads across Public Works, IT, Finance, and Public Safety. Key departments include Recreation, and Darien-Woodridge Fire Protection District. Knowing who controls budget and who influences vendor selection is the difference between a warm introduction and a cold call. Verified contact details are available for 199 decision-makers at City of Darien.
Show 3 more questions
What does City of Darien spend the most on?
Based on 3,640 tracked contracts, City of Darien spends most on Capital Projects (1,577), Public Works (1,430), Environmental Services (260), Public Safety (218), and Equipment (155). Contract types include SUPPLIES, PROFESSIONAL_SERVICES, MAINTENANCE, LEGAL, and OTHER. A complete spending breakdown — by category, vendor, contract value, and renewal date — helps you target the highest-value opportunities.
Who are City of Darien's current vendors?
City of Darien currently works with vendors including CINTAS, RAY O'HERRON COMPANY INC, DUPAGE COUNTY RECORDER, SPRING GROVE NURSERY, STANDARD EQUIPMENT, WILLIAMS ARCHITECTS, ODELSON, MURPHEY, FRAZIER, MCGRAT, EDDIE KOROSA JR BAND, and APEX. These vendors span contract types like SUPPLIES, PROFESSIONAL_SERVICES, MAINTENANCE, LEGAL, and OTHER. Understanding who the incumbents are — what they were awarded and when contracts are up for renewal — helps you position competitively.
How many active solicitations does City of Darien have?
City of Darien currently has 37 active solicitations. These solicitations span sectors including Capital Projects (1,577), Public Works (1,430), and Environmental Services (260). New opportunities are added as they're published across the agency's website, IL's state portal, and other sources.