MEMC, which also operates under the name Sunedison Semiconductor, LLC, is located in Saint Peters, Missouri. This organization primarily operates in the Gunn Effect Devices business / industry within the Electronic & Other Electrical Equipment & Components sector. This organization has been operating for approximately 3 years. MEMC is estimated to generate $1000 million in annual revenues, and employs approximately 111 people at this headquarters location and 400 total employees across all locations. This organization is engaged in manufacturing activities at this facility.