Stewart Little

Energy Systems Design, also known as ESD, offers a range of heating, ventilation and air conditioning solutions. In operation for more than 20 years, it provides design services for fire protection, sanitary drain, and industrial and process piping systems. The company offers testing, adjusting and balancing solutions. Energy Systems Design also provides building automation, systems commissioning, indoor air quality, and steam and chilled water distribution services. It offers building modeling, utility rebate and life cycle analysis, and energy simulation and auditing solutions. In addition, the company provides site, sports, and interior and exterior lighting design services. Energy Systems Design is a member of the U.S. Green Building Council.

AbTech Industries is a provider of solutions that address the issues of water contamination and pollutants for communities. The company offers Ultra-Urban filters for parking structures, truck stops, fuel farms, commercial fuel distributor facilities and residential units. It also provides line skimmers that feature the Smart Sponge technology. AbTech Industries serves utilities, refineries, steel mills, gas stations, car washes and real estate developers. In addition, the company offers Smart Pak for new and existing vaults that experience oil and grease pollution accompanied by sediment and debris. It has undertaken more than 13,000 installation projects in over 35 U.S. states, as well as holds nearly 15 patents. AbTech Industries provides Trash & Debris Guard, which reduces the maintenance of filtration devices.