INVITATION TO CONTRACTORS   Notice is hereby given that The School District of Springfield, R12 will receive bids until October 16, 2025, 11:00 a.m. for the:   Selective Door Upgrades Project: Central High School Glendale High School Hillcrest High School Kickapoo High School Parkview High School Study Alternative Center   Plan distribution, event details, and complete project details will be available via Ionwave Technologies electronic bidding software. Project will be available for public access on Ionwave Thursday, September 18, 2025, 11:00 a.m. For software registration and project access, visit spsebids.ionwave.net.   For questions regarding the project, please post questions into Ionwave through the Questions tool. A mandatory pre-bid meeting will be held October 3, 2025, 9:00 a.m., at SPS General Services Center, 1458 E. Chestnut Expressway, Conference Room #3. For general information please contact the Project Coordinator, David Roesener, dgroesener@spsmail.org.