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Service Assurance was founded in Memphis, Tenn., in 1989 by Mark Giannini. The company originally operated to service midrange and mainframe computers in the region, but as the technology industry began to grow, so did Service Assurance.
Promotion Concepts, Inc. is a Kalamazoo, MI-based company in the Business Services sector.
Bose is a company that develops sound systems for the entertainment, home audio, aviation and automotive industries. Their products include speakers, headphones, and soundbars designed to deliver an immersive listening experience.
Michigan Rehabilitation Spec is a Fowlerville, MI-based company in the Business Services sector.
EWI Worldwide is a Livonia, MI-based company in the Business Services sector.