About
C1S Group delivered a 178,000 sq. ft. design-build renovation at the Raytheon McKinney Campus — including 50,000 sq. ft. of ISO 7 cleanroom space with full commissioning of lighting systems, HVAC controls, and associated infrastructure per the 2015 IECC — a benchmark project that signals the depth of electrical and mechanical capability this Plano-area firm brings to complex commercial and industrial facilities. Operating from the Dallas metro and serving clients across North America, C1S Group functions as a full-service design-build and engineering firm with documented experience across aerospace and defense, pharmaceutical manufacturing, healthcare, advanced manufacturing, food and beverage, K-12 education, and municipal facilities. For facility managers and property owners managing technically demanding buildings, C1S offers an integrated Consult-Design-Build-Operate model that positions the firm to manage power distribution, switchgear coordination, panelboard and breaker work, lighting system design and commissioning, backup generator integration, and low-voltage and data infrastructure within a single project delivery structure. Their consultative approach includes capital planning support, helping clients identify funding pathways for building renovations while optimizing long-term operational performance. C1S has worked with Fortune 1000 companies and institutional clients alike, and their portfolio spans cleanroom-certified manufacturing environments to general office and administrative build-outs. The firm emphasizes a proactive, documented safety culture — a critical differentiator for facility managers coordinating electrical work within occupied or regulated facilities such as healthcare campuses, defense installations, or pharmaceutical plants. For Dallas-Fort Worth property managers and facility teams seeking a contractor with proven design-build execution, NEC-compliant commissioning experience, and the capacity to handle large-scale electrical scope across industrial, institutional, and commercial buildings, C1S Group warrants strong consideration.
