What is Invitation for Bid (IFB)?
IFBs (Invitations for Bid) are used when the agency can write a detailed, unambiguous specification and award depends primarily on price. Bidders submit sealed price bids and the lowest responsive and responsible bidder wins. There is no scoring of technical approach. Federal IFBs follow FAR Part 14 (Sealed Bidding). Construction is the most common IFB application — drawings and specifications define exactly what is to be built, and qualified bidders compete on price.
Open Illinois IFBs as of June 25, 2026
IFB Illinois 5d left
Invitation for Bid- Heating/Cooling Services
BidNet Direct (Aggregator)IFB Illinois 5d left
Invitation for bid -Plumbing
BidNet Direct (Aggregator)IFB Illinois 137d left
HISTOLOGY INSTRUMENTS (IFB)
Cook County, IL Awarded ContractsIFB Illinois 432d left
GUARDRAIL AND TRAFFIC BARRIER TERMINALS REPLACEMENT AND REPAIR (IFB)
Cook County, IL Awarded ContractsIFB Illinois
BRIDGE REPLACEMENTS SOUTH IFB
Cook County, IL Bid TabulationsIFB Illinois
Bituminous Materials (Hot Patch) and Prime Coat Material, North Area
Cook County, IL Intent to AwardIFB Illinois
IFB for Roberts Road - Valley Drive to 87th Street
Cook County, IL Intent to AwardIFB Illinois 15d left
DHS IFB MESSENGER MAIL DELIVERY SERVICES CHICAGO
Illinois BidBuyIFB Illinois 26d left
C25FI103184211R - Invitation for Bid (IFB) Non-Negotiable - Construction Services for (ASAP) Logan Square Line - California Station
Chicago Transit AuthorityIFB Illinois 14d left
C26FT103313594- Invitation for Bids (IFB) Non-Negotiable - Furnish and Deliver Ten (10) Mobile Operated, Wireless Column-type Lift Systems
Chicago Transit AuthorityIFB Illinois Closes today
B25OP01829R3 Invitation for Bids (IFB) Non- Negotiable: Tool and Instrument Calibration Services as required for Rapid Transit Car repair for a period of up to 36 months
Chicago Transit AuthorityIFB Illinois 6d left
B26OP04363R Invitation for Bids (IFB) Non- Negotiable: Cleaning and Repair Service for Rail Car Pre-Filters for a period of up to 36 Months
Chicago Transit AuthorityIFB Illinois 6d left
B24OP00636R2- INVITATION FOR BIDS (NON-NEGOTIABLE) REPAIRING,REBUILDING AND MAINTAINING VARIOUS BOILERS AND BOILER CONTROL SYSTEMS FOR A PERIOD OF UP TO THREE YEARS WITH TWO ONE YEAR OPTIONS
Chicago Transit AuthorityIFB Illinois 13d left
B26OP01851 - Invitation for Bids (IFB) Non-Negotiable: FURNISH AND DELIVER TEE RAIL, JOINT BAR, AND RAIL JOINT KITS FOR UP TO THIRTY-SIX MONTHS.
Chicago Transit AuthorityIFB Illinois 39d left
C26CT103289242- Invitation for Bids (IFB) Non-Negotiable: Furnish, Deliver and Install Four (4) Automatic Parts Washers and One (1) Floor Mounted Gantry Crane
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