Connor Co. 2374 Grissom Drive St. Louis MO 63146 was established in 1936 by E.J. Connor when he purchased Kinsey & Mahler Co. (a local plumbing wholesaler). In 1997 they opened the first HVAC division under the name Comfort Supply which eventually merged with the Connor Co. divisions. Today Connor Co. operates 24 supply house locations. AREAS SERVED: Connor Co. has supply 24 supply houses in Illinois Missouri and Indiana. BRANDS CARRIED: Connor Co. offers brand names like Tempstar Comfortmaker Rheem Climatemaster Honeywell Freezone Diversitech Aprilaire Generalaire Trion Purolator LittlrGiant White Rodgers as well as many other HVAC supplies.