IPI by Bison is a custom manufacturer of gymnasium equipment. We manufacture our equipment to meet our customers’ requirement ... s. Ceiling-mounted backstops, gym divider curtains, gym floor covers and windscreens are now available from Bison’s newest division, IPI by Bison. This product line was previously offered by Institutional Products Inc. of Indianapolis. IPI has served the gymnasium construction and renovation market since 1975, and this new partnership expands the range of basketball, volleyball, soccer, football and other team sports equipment that Bison has offered for more the 25 years. read more