Rodney L. Kelley

Sigma-Aldrich Corp. operates as a life science and technology material company. It develops, manufactures, purchases and distributes a broad range of biochemical and organic chemicals. Its services include basic research, product and process development, manufacturing and production, regulatory compliance, and facility operations. was founded in May 1975 and is headquartered in St. Louis, MO.

SAFC Biosciences, Inc. develops, manufactures, markets cell culture reagents and services targeted for commercial firms involved in developing and producing biopharmaceuticals using mammalian and insect cell culture methods. The company was acquired in 2005 by chemical supplier Sigma Aldrich Corp. The company was founded in 1971 and is headquartered in Lenexa, KA