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Aquacycl develops a wastewater treatment technology to treat wastewater. It offers sustainable water management for industrial, agricultural, food and beverage, manure management, military, and commercial wastewater sectors. The company was formerly known as Aquam Technologies. It was founded in 2016 and is based in Escondido, California.

MICROrganic Technologies develops a microbial fuel cell platform for industrial and municipal wastewater treatment. It builds and deploys bio-electrochemical systems that eliminate aeration, reduces the energy use of treatment, and provides secondary treatment solution for both industrial and municipal wastewater plants. It was founded in 2013 and is based in Saratoga Springs, New York.

ClearCove provides renewable energy and resource recovery solutions. Its patented technology transforms wastewater into valuable resources, from clean water and energy through beneficial nutrients, including phosphorous and nitrogen. The company was founded in 2013 and is based in Victor, New York.

Atlantic Biomass Conversions is a company that received a STTR Phase I grant for a project entitled: Development of Sugar Beet Pulp Enzymatic Pretreatment System. Their project develops a pretreatment process for biomass that will be used as feedstock for making biofuels, thereby solving a significant problem in this process. Before plant and tree material (biomass) can be used to produce biofuels, or biochemical building blocks for plastics, it must be pretreated to release the targeted components. This pretreatment step is a significant barrier to the development of cost-effective "biorefineries" that would convert biomass, including agricultural residues not currently being utilized, into biofuels and value-added biochemicals. Instead of the conventional approach, where complex biomass is broken down into small components for later processing into alcohol or reassembly into complex chemicals, this new approach directly converts the various components of the biomass into biofuels and biochemcials. This results in a much less costly process. The first step is to remove components from the "backbone" of the biomass and process them into biofuels and biochemicals with enzymes specifically developed to perform these tasks. This step not only produces products, but also makes it easier for another set of enzymes to extract larger components of the biomass "backbone" for processing into biochemicals. This process continues until the backbone is completely disassembled and all the available components were processed. At the end, the remaining sugars are fermented to ethanol. The broader impact of this project is to significantly enable the US to meet the goal of reducing petroleum imports by 60 percent before 2025 by developing technology that makes the agricultural biorefinery economically sustainable.

KmX Corporation builds, sells, and/or operates membrane pervaporation and distillation systems, and offers cost-effective solutions to treat and recover maximum value from difficult to treat water and wastewater. KmX Corporation's primary technology applications include oil & gas, desalination, chemicals and pharmaceuticals, mining and metals processing, and biofuels & bioproducts.

Xylem is a company that focuses on advanced water solutions and technologies in the water and wastewater management industry. The company offers a range of products and services including water and wastewater treatment systems, pumps and packaged pump systems, heating, ventilation and air conditioning (HVAC) solutions, and digital solutions for data transfer and communication. Xylem primarily serves sectors such as agriculture, aquaculture, commercial buildings, energy and power, environmental monitoring, and residential among others. It is based in Rye Brook, New York.