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Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells energy efficiency technology solutions in the Americas, the Middle East, Africa, Asia, and Europe. The company operates through Water and Emerging Technologies segments. The company offers high and low pressure, and ultra pressure exchangers; AT and LPT hydraulic turbochargers; and high-pressure feed and circulation booster pumps for use in seawater and brackish desalination, and wastewater treatment. It also provides PX G1300, which reduces energy consumption and operating costs of carbon dioxide-based refrigeration systems; and spare parts, as well as repair, field, and commissioning services. It sells its products under the ERI, PX, Pressure Exchanger, PX Pressure Exchanger, Ultra PX, PX G, PX G1300, PX PowerTrain, AT, and Aquabold brands to original equipment manufacturers, supermarket chains, cold storage facilities, refrigeration system installers, and other industrial users; aftermarket customers consisting of desalination plant owners and operators; and project developers, end-users, and industry consultants, as well as engineering, procurement, and construction firms. Energy Recovery, Inc. was incorporated in 1992 and is headquartered in San Leandro, California.

H&E Equipment Services, Inc. operates as an integrated equipment services company in the United States. The company operates in five segments: Equipment Rentals, Sales of Rental Equipment, Sales of New Equipment, Parts Sales, and Repair and Maintenance Services. The Equipment Rentals segment provides construction and industrial equipment for rent on a daily, weekly, and monthly basis. The Sales of Rental Equipment segment sells used equipment from its rental fleet. The Sales of New Equipment segment sells new construction equipment through a professional sales force. The Parts Sales segment provides parts to its rental fleet and sells parts for the equipment, as well as maintains parts inventory. The Repair and Maintenance Services segment provides maintenance and repair services to its rental fleet and customers' equipment at its facilities, as well as at customers' locations. It also provides ancillary equipment support activities, including transportation, hauling, parts shipping, and loss damage waivers. The company's rental fleet consists of aerial work platforms, cranes, earthmoving and material handling equipment, and other general and specialty lines. It serves industrial and commercial companies, construction contractors, manufacturers, public utilities, municipalities, maintenance contractors, and various other industrial account customers. H&E Equipment Services, Inc. was founded in 1961 and is headquartered in Baton Rouge, Louisiana.

Lindsay Corporation, together with its subsidiaries, provides water management and road infrastructure products and services in the United States and internationally. It operates in two segments, Irrigation and Infrastructure. The Irrigation segment manufactures and markets center pivot, lateral move irrigation systems, and irrigation controls under the Zimmatic brand; hose reel travelers under the Perrot brand; and chemical injection systems, variable rate irrigation systems, flow meters, weather stations, soil moisture sensors, and remote monitoring and control systems. It also offers repair and replacement parts for its irrigation systems and controls, and diameter steel tubing; global positioning system positioning and guidance, variable rate irrigation, wireless irrigation management, irrigation scheduling, and smartphone applications; and industrial Internet of Things technology solutions, data acquisition and management systems, and custom electronic equipment for applications under the Elecsys brand. The Infrastructure segment provides Road Zipper System comprised of T-shaped concrete and steel barriers, barrier transfer machine, and variable length barriers which are used for highway reconstruction, paving and resurfacing, road widening, median and shoulder construction, and repairs to tunnels and bridges. Additionally, it offers redirective and non-redirective crash cushions to enhance highway safety at locations such as toll booths, freeway off-ramps, medians and roadside barrier ends, bridge supports, utility poles, and other fixed roadway hazards; specialty barriers; preformed tape and road safety accessory products, as well as rail products, such as signals and lights, structures, foundations, junction boxes, and signs. Lindsay Corporation was founded in 1955 and is headquartered in Omaha, Nebraska.

Napco Security Technologies, Inc. develops, manufactures, and sells electronic security products in the United States and internationally. The company offers access control systems, door-locking products, intrusion and fire alarm systems, and video surveillance systems for commercial, residential, institutional, industrial, and governmental applications. Its access control systems include various types of identification readers, control panels, PC-based computers, and electronically activated door-locking devices; and door locking devices comprise microprocessor-based electronic door locks with push button, card readers and bio-metric operation, door alarms, mechanical door locks, and simple dead bolt locks. The company's alarm systems include automatic communicators, cellular communication devices, control panels, combination control panels/digital communicators and digital keypad systems, fire alarm control panels, and area detectors; and video surveillance systems comprise video cameras, control panels, video monitors, or PCs. It also buys and resells various identification readers, video cameras, PC-based computers, and various peripheral equipment for access control and video surveillance systems; offers school security products; and markets peripheral and related equipment manufactured by other companies. The company markets and sells its products to independent distributors, dealers, and installers of security equipment. Napco Security Technologies, Inc. was founded in 1969 and is headquartered in Amityville, New York.