ATMI-INDY, LLCÂ is an insulated precast wall panel manufacturer. Our geographic service market is approximately 350 miles from Indianapolis. We manufacture, deliver and install a premium wall panel that offers a variety of insulation possibilities and exterior finish options. We are customer oriented and business friendly. Demand for our product exceeds 2.5 million square feet per year. We began making panels in 2000. In 2003 the company was acquired and named ATMI-Indy, llc.