Dennis Group operates its San Diego regional office from Carlsbad's Palomar Airport Road, providing exclusive food and beverage facility design-build services for industrial manufacturers nationwide. The 750-employee firm designs process systems, ammonia refrigeration, and clean-in-place piping for industrial food manufacturing plants, executing refrigeration engineering at a scale that complements the commercial cold-chain work of Carlsbad contractors like Coastal Refrigeration Heating and Air Conditioning. Founded in 1987 and headquartered in Springfield, Massachusetts, Dennis Group focuses exclusively on the food and beverage sector, covering process design, facility architecture, construction management, automation and controls, packaging-line integration, and environmental engineering. Sanitary plumbing design for processing floors — including CIP return lines, floor drainage, and potable-water distribution — requires coordination with mechanical contractors like Vanguard Plumbing & Drains during construction administration. The Carlsbad office's project portfolio includes full greenfield food processing facilities with integrated PLC-based automation, SCADA monitoring, batch-execution recipe management, and ERP/MES integration for national food manufacturers.