Specialty Glass Products was founded in 1961. In the beginning, SGP produced precision glass housings for high-reliability resistors. After one year, with the accumulation of orders and diversification into thermo-compression bonding tools and thermocouple shields, the company was moved to its first industrial facility in Horsham, Pennsylvania and operated there for a period of ten months. SGP continued to grow and in 1967 it built its present facility in Willow Grove, Pennsylvania. In 1995 SGP added 30% more manufacturing space and since that time has continued to add new computer controlled equipment to increase its capacities and expand its capabilities.