ITAMCO Pitches an Innovation District for Plymouth

Indiana Tool & Manufacturing Co., led by President Gary Neidig, has formed the Indiana Innovation Center and is asking Plymouth to annex and rezone its property as the first step toward an adjacent innovation district built around advanced manufacturing, cybersecurity, and tech commercialization. The pitch names the University of Notre Dame and South Bend's Colfax Corner as intended partners, with Mayor Robert Listenberger and Council President Don Ecker backing the annexation. Notre Dame has not signed a formal agreement with Plymouth, and the university's $130-135 million Colfax Corner project in South Bend will occupy its attention through at least 2028. ITAMCO's district also leans on a state Innovation Development District designation under Indiana Code 36-7-32.5, which allows tax increment to be recycled for up to 30 years, a mechanism ITAMCO needs now that the state's Manufacturing Readiness Grant program, which paid out $79.8 million to 772 companies between 2020 and 2025, was defunded in the current state budget. The Neidig family's record, including Atlas 3D's 2019 sale to Siemens and the DOD-backed SIMBA Chain, gives Plymouth a defense contracting connection most greenfield Indiana districts do not have.