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Acorn Energy, Inc., together with its subsidiaries, develops and markets wireless remote monitoring and control systems for various markets in the United States and internationally. It operates through two segments, Power Generation (PG) Monitoring and Cathodic Protection (CP) Monitoring. The PG segment provides wireless remote monitoring and control systems, and services for critical assets, which include stand-by power generators, compressors, pumps, pumpjacks, light towers, turbines, and other industrial equipment; and Internet of Things applications. The CP segment offers remote monitoring of cathodic protection systems on gas pipelines for gas utilities and pipeline companies. Acorn Energy, Inc. was incorporated in 1986 and is based in Wilmington, Delaware.

ENGlobal Corporation provides engineering and professional project execution services primarily to the energy sector in the United States and internationally. It operates through two ENGlobal Corporation provides engineering and professional project execution services primarily to the energy sector in the United States and internationally. It operates through two segments, Commercial and Government Services. The Commercial segment provides multi-disciplined engineering services and fabrication relating to the development, management, and execution of projects requiring professional engineering and related project management services. It offers conceptual studies, project definition, cost estimating, engineering design, environmental compliance, material procurement, project management, construction management, and fabrication services. The Government segment provides design, integration and implementation of process distributed control and analyzer systems, advanced automated data gathering systems, information technology, and the maintenance of these systems; automated fuel handling systems and maintenance services to military and public sector entities, government agencies, refineries, petrochemical, and process industry; and electrical and instrument installation, technical services, ongoing maintenance, calibration, and repair services. The company serves Fortune 500 companies in the energy industry and the United States government. ENGlobal Corporation company was founded in 1985 and is headquartered in Houston, Texas.

Tri-Tech Holding Inc. provides consulting, engineering, procurement, construction, and technical services. Its Water, Wastewater Treatment and Municipal Infrastructure segment procures and constructs build-transfer processing equipment and processing control systems for the municipal water supply and distribution, wastewater treatment, and gray water recycling activities; and offers municipal facilities engineering and operation management services for related infrastructure construction projects. The company's Industrial Pollution Control and Safety segment provides systems for volatile organic compounds abatement, odor control, water and wastewater treatment, water recycling facilities design, engineering, procurement, and construction for oil, gas, petrochemical, and power industries. The company serves government, state-owned entities, and commercial clients. Tri-Tech Holding Inc. was incorporated in 2002 and is based in Beijing, the People's Republic of China.