About ESI Environmental Systems, Inc. For more than 50 years, ESI has discovered solutions to the most complex building systems throughout the Northeast. Environmental Systems, Inc. (ESI) custom designs specific preventive maintenance programs to suit the systems needs and owner’s requirements. ESI can spot potential problems before they become serious … The U.S. Green Building Council, the organization responsible for the creation of LEED Certification, notes that the LEED certification program measures the metrics of a construction project that matter most: … Environmental Systems, Inc. understand the value of a safe working environment. Over the past three years, our Experience Modification Rate (EMR) is amongst the lowest in the contracting industry, and … Environmental Systems, Inc. (ESI) has recently decided to expand the Service department to help manage our in-house services. The new Sales and Marketing Coordinators will concentrate on creating … ESI Acquires Precision Mechanical Environmental Systems, Inc. is proud to announce the acquisition of Precision Mechanical, Inc. out of... Environmental Systems, Inc. (ESI) in collaboration with Dacon Corp. and Scannell Properties, renovated a 371,778 square foot package distribution center in the Marina Bay area. ESI Celebrates 40 Years of Business! This February marks Environmental Systems, Inc.’s 40th year in business. ESI began as a three person mechanical contracting firm in Norton, MA in 1974.
