TemetUSA represents Temet OY of Helsinki, FInland. Temet has been building critical components for military, government and civil hardened facilities since 1956. Their unique product offering includes blast resistant doors, blast valves, CBRN Filtration Equipment and other special critical components of protective facilities.

Electric Power Door of Hibbing, MN has been in business since 1923. Their position as a leader in power operated special application doors gains them customers worldwide

Dean Steel has been in business since 1958. Their experience and expertise in building hollow metal ballistic, blast, forced entry and fire rated doors gives Castle Shelter Group a partner to round out the special door portfolio.