Superior Industrial Insulation is an Ohio mechanical insulation and firestopping contractor running its own single-source firestop programme. Its firestopping page states that the firm is an Underwriters Laboratories Qualified Firestop Contractor and holds Hilti, STI and 3M trainer credentials. It also offers fire barrier assessments, reviewing facilities for code compliance and documenting existing barriers. It operates from Cleveland with branches in Columbus, Toledo and the Akron–Canton area.