Open Systems Technologies, Inc.

Open Systems Technologies was founded in 1997 in Grand Rapids, Mich. The technology firm's roughly 370 employees specialize in CRM consulting, e-commerce and mobile app development for Android, iOS, cross platform and hybrid apps, and iPads. Additional service offerings feature a full array of programming skills and ERP expertise with Oracle, SAP, and Microsoft Dynamics. The team also serves their primarily IT-focused client base with .NET, Ruby on Rails, Sharepoint, and Joomla proficiency.