RFPs, RFIs, RFQs, Sources Sought and Government Contracting Opportunities in St. Charles, Missouri

Browse open government contracting RFPs, RFIs, RFQs, and Sources Sought in St. Charles, Missouri on Bidscope. We aggregate active government contracting opportunities from federal, state, and local agencies across St. Charles, Missouri, refreshed daily so you never miss a bid. Click any opportunity below for full solicitation details, due dates, and contacts.

StatusTitleBuyerDue Date
OpenMunicipal Financial Statement Auditing Services

The City of St. Charles is requesting proposals from qualified certified public accounting firms to audit its financial statements for fiscal years ending April 30, 2027, through April 30, 2031, in accordance with generally accepted auditing standards.

St. Charles, MO, USARequest for Proposal (RFP)
City of St. Charles10/6/2026
OpenLegacy Farms Park Disc Golf Course Design and Installation

The City of St. Charles, Missouri, is requesting proposals for the design and installation of Phase One of a new disc golf course at Legacy Farms Park.

St. Charles, MO, USARequest for Proposal (RFP)
City of St. Charles9/18/2026
OpenZylstra Lift Station 65 kW Generator Replacement

The City of St. Charles is requesting bids to remove and replace an existing 30 kW natural-gas generator with a 65 kW generator and automatic transfer switch serving two 25-horsepower Sulzer pumps at the Zylstra Lift Station.

St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
City of St. Charles9/17/2026
OpenN. 3rd Avenue Parking Improvements

The City of St. Charles is seeking a contractor for parking improvements on the east frontage of N. 3rd Avenue, including sidewalk, curb and gutter, parkway, and pavement restoration, new curb extensions, ADA ramps, and diagonal parking.

St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
City of St. Charles9/18/2026
OpenPer-Building Elevator Maintenance and Service

St. Charles County Government is seeking contractors to provide per-building maintenance, inspections, repairs, and 24/7 service for elevators, dumbwaiters, and vertical lifts at county facilities.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County > Finance Department9/21/2026
OpenMain Street Sidewalk Snow Removal

The City of Saint Charles, Missouri, is seeking snow removal services for Main Street sidewalks under Bid 4854NA.

St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
City of St. Charles9/15/2026
OpenHowdershell Road Improvements

St. Louis County is seeking a contractor for mill and overlay, base repairs, ADA-compliant curb ramps and sidewalks, and traffic signal upgrades on Howdershell Road from I-270 to Utz Lane.

St. Louis County, MO, USAInvitation for/to Bid (IFB/ITB)Disadvantaged Business
St. Louis County9/23/2026
OpenElevator Maintenance and Service

St. Charles County is seeking bids for elevator maintenance and service on a per-building basis.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County9/21/2026
Open2027 HVAC Upgrades

Fort Zumwalt School District is soliciting sealed bids for HVAC equipment replacement, mechanical design-build work, and related electrical and general construction at seven district locations.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)
Fort Zumwalt School District10/1/2026
OpenBase 21 Driveway and Garage Door Project

St. Charles County Ambulance District is seeking bids for the Base 21 Driveway and Garage Door Project, due at the District office by September 21, 2026.

St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County Ambulance District9/21/2026
OpenKlondike Park Waterline Replacement

St. Charles County is soliciting bids for the Klondike Park waterline replacement project.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County9/17/2026
OpenHepperman Road Reconstruction

St. Charles County is seeking a contractor to reconstruct approximately 0.67 mile of Hepperman Road, including grading, asphalt paving, curb and gutter, sidewalk, drainage, striping, and signing.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)Disadvantaged Business
Livingston County > Highway Department10/2/2026
OpenIndian Camp Creek and New Melle Maintenance Facilities

St. Charles County is seeking a contractor to design and construct an engineered 60-by-60-foot maintenance building at Indian Camp Creek Park and a 100-by-25-foot freestanding storage shelter at New Melle Lakes.

St. Charles County, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County > Finance Department9/28/2026
OpenCopy Paper Supply and Delivery

Saint Louis County Government is soliciting bids to supply and deliver specified white copy paper to various County department locations, with an estimated annual usage of 1,900 cases.

St. Louis County, MO, USAInvitation for/to Bid (IFB/ITB)
St. Louis County9/15/2026
OpenHistoric Courthouse Full Window Replacement

St. Charles County is seeking bids to remove and replace 101 metal-clad exterior windows at its Historic Courthouse in St. Charles, Missouri, with an alternate for eight cupola windows.

Saint Charles County Circuit 11 Courthouse, St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County10/2/2026
OpenRadiology Equipment – Rebid

St. Charles County is requesting bids for radiology equipment under IFB 26-102, Radiology Equipment – Rebid.

201 North Second Street, St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County9/18/2026
OpenJustice Center Detention Furniture – Phase 3

St. Charles County Government is seeking bids for Phase 3 detention cell and ancillary furniture, including anti-ligature molded-plastic beds, bunks, desks, shelves, stools, steps, and seating, with delivery to the Justice Center.

301 North Second Street, St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County > Finance Department9/30/2026
OpenRegency Parkway Reconstruction

The City of St. Charles is seeking sealed bids for reconstruction of Regency Parkway in St. Charles, Missouri.

1041 Regency Parkway, St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
City of St. Charles10/8/2026
OpenFamily Arena Snow and Ice Removal Services

St. Charles County Government is seeking a contractor to provide authorized snow and ice removal services for Family Arena private roadways and parking areas, including equipment operation and material spreading.

2002 Arena Parkway, St. Charles, MO, USAInvitation for/to Bid (IFB/ITB)
St. Charles County9/29/2026
OpenBOA TV Lights LED Replacement

The City of St. Peters is requesting proposals to replace BOA TV lighting with LED lighting under Project 26-186.

St. Peters, MO, USARequest for Proposal (RFP)
City of St. Peters > Purchasing Department9/14/2026
OpenAutumn Shores Court Trench Drain Replacement

The City of Maryland Heights is seeking sealed bids to replace the Autumn Shores Court street storm sewer inlet channel, including new concrete walls, floor, and adjacent street slabs.

3106 Autumn Shores Drive, Maryland Heights, MO, USAInvitation for/to Bid (IFB/ITB)
Baltimore City9/23/2026
OpenAquaport/I-270 Tree Removal

The City of Maryland Heights is seeking sealed bids for removing and properly disposing of small trees and underbrush obstructing drivers' views along I-270 near Aquaport.

Aquaport, Maryland Heights, MO, USAInvitation for/to Bid (IFB/ITB)
City of Columbia Heights9/23/2026
OpenCommunications Building HVAC Replacement and Improvements

The City of St. Peters is seeking design-build proposals for HVAC replacement and improvements at its Communication Building in St. Peters, Missouri.

4100 Mexico Road, St. Peters, MO, USARequest for Proposal (RFP)
City of St. Peters9/16/2026
OpenCommunications Building HVAC Replacement and Improvements

The City of St. Peters is seeking sealed proposals for HVAC replacement and improvements at its Communications Building.

4100 Mexico Road, St. Peters, MO, USARequest for Proposal (RFP)
City of St. Peters > Purchasing Department9/16/2026
OpenCircuit Card Assembly Repair and Upgrade

The U.S. Navy is seeking quotes to repair, upgrade, test, inspect, and return a circuit card assembly to ready-for-issue condition.

325 James S Mcdonnell Boulevard, Hazelwood, MO, USARequest for Quote/Qualifications (RFQ)
United States of America > DEPT OF DEFENSE > DEPT OF THE NAVY > NAVSUP WEAPON SYSTEMS SUPPORT (PHILADELPHIA)9/18/2026
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