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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 in 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, pumps, pumpjacks, light towers, turbines, compressors, fire pumps, and other industrial equipment; and Internet of Things applications. The CP segment offers remote monitoring and control products for cathodic protection systems utilized in gas pipelines for gas utilities market and pipeline operators. The company was incorporated in 1986 and is based in Wilmington, Delaware.

AECOM, together with its subsidiaries, provides professional infrastructure consulting services worldwide. It operates in three segments: Americas, International, and AECOM Capital. The company offers planning, consulting, architectural and engineering design, construction and program management, and investment and development services to public and private clients. It is also involved in the investment and development of real estate projects. In addition, the company provides construction services, including building construction and energy, and infrastructure and industrial construction. It serves transportation, water, government, facilities, environmental, and energy sectors. The company was formerly known as AECOM Technology Corporation and changed its name to AECOM in January 2015. AECOM was incorporated in 1980 and is headquartered in Dallas, Texas.

Baran Group Ltd provides engineering, technology, telecommunication, and construction solutions worldwide. The company's solutions include feasibility studies, engineering and design, permitting and validation, construction and site management, procurement and construction management, project management and control, turnkey, project financing, and related services. It serves various industries, such as manufacturing, industrial process, power generation and distribution, petroleum production, water supply, sewerage and hazardous waste treatment, general building, construction, transportation, telecommunications, and other. Baran Group Ltd was founded in 1979 and is headquartered in Beit Dagan, Israel.

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.

Umbra Applied Technologies Group, Inc. operates as a green technology development, fabrication, and commercialization company. The company develops and manufactures equipment, products, and systems to global remediation projects. Its technologies include power generation, oil and sand processing, oil shale processing, inland and salt water oil spill remediation, water remediation, water desalinization and medical waste remediation, and e-waste remediation. The company was formerly known as Green Processing Technologies, Inc. and changed its name to Umbra Applied Technologies Group, Inc. in January 2014. The company was incorporated in 2011 and is headquartered in Spring Hill, Florida. Umbra Applied Technologies Group, Inc. is a subsidiary of Green Processing Technologies, Inc.