Barry Wehmiller Design Group is an engineering consulting firm providing design, engineering and construction services to the microelectronics industry. The company specialises in lean construction, virtual design, and system integration. Its capabilities within the fab cover a wide range of projects, including tool installation, HVAC systems, ultrapure water systems, cooling water systems, chemical delivery systems, and high purity gas systems. Barry Wehmiller Design Group operates from over 45 offices in the US and India.