# City of Chicago #74294,3

O’Hare Airport SMS, BAS, and Fire Alarm Systems Support and Maintenance

**Posted:** July 29, 2026
**Respond By:** October 09, 2026
**Identifier:** 74294,3
**NAICS:** 561621, 811219, 811213, 488190

The City of Chicago’s Department of Aviation is seeking a contractor to maintain and support O’Hare Airport’s fire alarm monitoring and connected building systems.
- **Government buyer:** City of Chicago — Chicago Department of Aviation; Department of Procurement Services. The attachment identifies Derrick Knight Jr. as the buyer contact.
- **OEM and named system:** **Siemens** fire alarm equipment and Desigo CC are identified in the documents. No reseller or other prospective vendor is named.
- **Services requested:** Support and maintenance for the Supervisory Monitoring System (SMS), Building Automation System (BAS), Fire Alarm System (FAS), and related controls at O’Hare International Airport facilities. The attachment lists a service quantity of 60,000; the unit is not specified.
- **Scope:** 24/7 monitoring and emergency response; preventive and corrective maintenance; inspections, testing, installations, and repairs; hardware, software, communications, and network upgrades; software updates, system backups, diagnostics, and graphical interface updates; cybersecurity support; training; and reporting.
- **Notable requirements:** Systems upgrades must support BACnet. Minimum onsite staffing is 12 full-time-equivalent employees. Routine recurring work is paid through a monthly fixed fee; specified major repairs, replacements, upgrades, and other non-routine work are paid on an actual-cost basis with prior approval.
- **Term:** 36-month base term, with up to five additional 12-month extension periods. The start date is set at award.

### Description

The City of Chicago is soliciting proposals for support and maintenance of the Supervisory Monitoring System Fire Alarm Monitoring for the Chicago Department of Aviation. The contract term is 36 months, and the source lists contract-specific goals of MBE 28%, WBE 8%, and VBE 2%. A pre-submittal conference is strongly encouraged but non-mandatory; proposals are due October 9, 2026, at 3:00 PM Central Time. The solicitation notes an amendment extending the bid opening because of technical difficulties with the supplier portal.

[View original listing](https://webapps1.chicago.gov/vcsearch/city/solicitationdetails/-77403eprocurement)