Sigmatel, Inc was founded in 1993 and is headquartered in Austin, Texas with additional offices in Taipei, Taiwan; Shenzhen, China; Seoul, South Korea; Tokyo, Japan; Singapore, Singapore; and Hong Kong, Hong Kong.

It offers system-level solutions, which include highly-integrated ICs, customizable firmware, software development tools, reference designs, and applications support. The company provides its ICs for various digital multimedia products in the consumer electronics markets, including digital media players, printers, and digital televisions. SigmaTel, Inc. markets its products to original equipment manufacturers and original device manufacturers through independent sales representatives and distributors. 

As of April 30, 2008, Sigmatel, Inc. was acquired by Freescale Semiconductor, Inc. SigmaTel, Inc., a fabless semiconductor company, engages in the design, development, and marketing of analog-intensive mixed-signal integrated circuits (ICs) in the United States, Taiwan, China/Hong Kong, Singapore, South Korea, and Japan.