C1S Group is an engineering, construction and sustainability consulting firm specializing in the design and installation of projects for existing facilities. As experts in providing solutions for critical and manufacturing environments, C1S drives energy efficiency, maintainability and value in every project. The C1S client list varies from global Fortune 500 organizations to highly specialized entities with one facility. The C1S business model calls for the agility to work on multiple projects across geographic locations with varying complexities. C1S is proud of its industry-leading focus on its employees. Outside Magazine and Inc. Magazine have named C1S one of the "100 Best Places to Work in America" (2015) and "50 Best Workplaces" respectively. For more information, visit www.c1sinc.com.