INVENT develops, produces, and implements innovative components, systems, and processes worldwide for the treatment of water and wastewater, with a focus on applications in the municipal and industrial water and wastewater treatment sectors. The product portfolio comprises innovative stirring, mixing, and aeration technology, intelligent system solutions, and engineering & consulting services. PINOVA acquired the stake of an existing shareholder in August 2010 and is supporting further growth of the company.

FLSmidth A/S, part of FLSmidth & Co. A/S, is a company headquartered in Valby, Denmark. The firm supplies engineering equipment. It was founded in 1882.\nThe company says this about itself: FLSmidth is the market-leading supplier of productivity to the global mining and cement industries. Headquartered in Copenhagen, Denmark, and with offices in more than 50 countries, FLSmidth delivers engineering, equipment and service solutions to customers worldwide. Productivity, sustainability, and quality are focus areas for the 13,000 employees in FLSmidth. The company generated revenue of DKK 20 billion in 2015.

Baker Hughes, Inc. is a private company headquartered in Houston, TX. The firm manufactures oilfield equipment.

Ovivo, Inc. engages in the development and provision of technological solutions for water treatment. It serves electronics, metals, municipal wastewater, oil and gas, petrochemical and power companies. The company was founded by Laurent Verreault on May 15, 2007 and is headquartered in Barrie, Canada.

Linde provides dry ice, gas equipment, and welding equipment. They provide products for metal fabrication, virtual shopping, healthcare, laboratories, electronics, and e-business. They also provide welding, cutting, automation, gas supply modes, and productivity enhancements.

Boydel is a wastewater treatment technology company. They produce modular and electrochemical systems. They design and build containerized, skid-mounted, or permanent modular industrial wastewater treatment platforms.

Xi'an West Hot Water Environmental Protection Co., Ltd., established on 2012-05-07, Business scope includes general items:Water Environment Pollution Prevention and Control Services;water pollution control;Sewage Treatment and Its Reuse;Water Conservancy Related Consulting Services;Import and export agency;Technology Import and Export;Environmental Consulting Services.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Construction engineering design;Construction Engineering Construction.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Specific business projects are subject to approval results)

Qingyan Environmental Technology Co., Ltd., established on 2014-07-10, Business scope includes general business items:Research and development of environmental protection engineering technology,Technical Consulting and Technical Services;Research and development of environmental protection equipment and environmental protection materials,Sales;Research and development of environmentally friendly pharmaceuticals and bacterial agents,Sales;Environmental Pollution Control Facilities Management.(The above business items involve licensing,Please obtain approval from relevant departments before operating),The licensing program is:Investment in Environmental Engineering,design,consult,Technical Services,the construction,operate;Environmental protection equipment and environmental protection material manufacturing,processing,Production.

Bio-Lab, Inc., a subsidiary of Merck KGaA, is an American company located in Birmingham, AL, that provides solutions for recreational, industrial water treatment & home cleaning. On September 24, 1997 Serologicals Corp. acquired Bio-Lab, Inc.

Veolia Water Solutions & Technologies Support SAS engages in water plants construction. The company was founded on December 21, 2000 and is headquartered in Saint Maurice, France.

Dorr-Oliver, Inc. is an American company located in Pittsburgh, PA, focused on manufacturing industries. The firm was acquired by KraussMaffei Technologies GmbH on March 01, 1995 for $53.47 million.\nThe company says this about itself: Ovivo is a global provider of equipment, technology and systems producing among the purest water and treating some of the most challenging wastewater in the industry. Ovivo is a powerful global brand with renowned trademarks, possessing more than 150 years of expertise and references in water treatment, supported by its proprietary products, advanced technologies and extensive system integration knowhow. Ovivo delivers conventional to highly technological water treatment solutions for the industrial and municipal markets, and leverages its large installed base of equipment around the world to offer parts and services to its customers. Ovivo is dedicated to innovation in an industry that is in constant evolution and offers water treatment solutions that are cost-effective, energy-efficient and environmentally sustainable.

Part of GEA Group AG, Westfalia Separator AG is a German company located in Oelde specializing in special industry machinery.

Evoqua Water Technologies LLC provides water treatment solutions. Its water and wastewater treatment products include activated carbon, anaerobic digestion, biosolids treatment, disinfection, filtration, odor and corrosion control, physical chemical treatment, aeration and mixing, and electrochemical products. It also offers electrocatalytic, intake equipment, filter press equipment, and media exchange services. The company is headquartered in Warrendale, PA.

Midea Group is a consumer appliances and air conditioning systems manufacturer. They specialize in refrigerators, laundry, kitchen appliances, and water heaters by developing technology. Their products include kitchen chimneys, sensor washing machines, vacuum cleaners, dishwashers, refrigerators, and induction.

Dow Global Technologies LLC manufactures chemicals such as polymers.

Ahlstrom Machinery Corp., part of Andritz AG, is a Finnish company located in Espoo. The firm provides engineering services.