Allied Supply Company is a full service wholesale distributor of heating, ventilating, air conditioning, refrigeration, air filtration and building management controls. We have six stores throughout Ohio located in Lima, Mansfield, Toledo, Cincinnati and Columbus with our headquarters office/store in Dayton, Ohio. Allied Supply serves all of Ohio, Eastern Indiana, Southern Michigan and Northern Kentucky markets. We sell only to contractors and end-users that are in the business of repairing and maintaining HVACR and industries equipment. The success of this family-owned business results from the longevity of Allied employees and the company’s commitment to a positive work environment and keeping pace with market needs.