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Natural Gas Services Group Inc provides natural gas compression equipment and services to the energy industry. The company manufactures, fabricates, rents, sells, and maintains natural gas compressors and flare systems for oil and natural gas production and plant facilities. Its operating units include Rental, Sales, and Aftermarket services. The company generates the majority of its revenue by renting out low- to medium-horsepower compression equipment to natural gas production companies in unconventional oil and gas regions of the United States.
Aldeyra Therapeutics Inc is a biotechnology company engaged in developing and commercializing next-generation medicines to improve the lives of patients with immune-mediated diseases. The company's product candidate, reproxalap, is a first-in-class treatment in late-stage development for dry eye disease and allergic conjunctivitis. In addition, it also has additional product candidates in development for proliferative vitreoretinopathy, primary vitreoretinal lymphoma and other retinal diseases, autoimmune disease, and cancer.