Compare Stocks

Abtech Holdings, Inc., an environmental technologies company, provides solutions to address issues of water pollution. It develops Smart Sponge, a polymer technology that focuses the removal of hydrocarbons and oil derivatives from surface water; Smart Sponge Plus, an antimicrobial agent to reduce coliform bacteria found in storm water, industrial wastewater, and municipal wastewater; and Ironwood and Smart Sponge HM media, a carbon-based renewable material with attached nanostructures for the removal of phosphates, as well as heavy metals, such as selenium, chromium, copper, iron, lead, and zinc. The company offers Smart Sponge Popcorn for various filtration applications; Ultra-Urban Filter, a modular filtration unit for use in curb opening and top down storm drains, and to treat storm water runoff for new or retrofitted sites by absorbing oil and grease, and capturing trash and sediment; and End-of-Pipe Water Treatment Systems to treat individual catch basins It also provides Smart Pak for use in new or existing end-of-pipe systems, such as vaults; and Absorbent Booms and Line Skimmers to absorb and permanently encapsulate hydrocarbons resulting in no dewatering of oily water during removal. In addition, the company offers Passive Skimmers to absorb and encapsulate hydrocarbons by floating directly on the water in catch basins, sumps, oil/water separators, and marine fueling stations; and Bilge Skimmer for permanently encapsulating the petroleum hydrocarbons that appear as oily sheen in the engine compartment during normal boat operation. Further, it provides industrial process water systems to purify well or surface makeup water streams for various plant requirements; and develops de-oiling solutions for the produced water market for the removal of free oil. The company serves the oil and gas industry, and spill prevention and control markets. Abtech Holdings, Inc. is headquartered in Scottsdale, Arizona.

ESGL Holdings Limited provides waste solutions. It regenerates industrial waste into circular products using technologies and renewable energy. The company was founded in 1999 and is based in Singapore.

Kelso Technologies Inc. develops, produces, and distributes proprietary equipment used in transportation applications in the United States and Canada. It offers rail and road transport equipment, such as pressure relief, vacuum relief, bottom outlet, pressure car pressure relief, pressure car angle, and top ball valves; and one-bolt manways and related equipment, emergency response equipment, and no spill locomotive fueling equipment; and other specialty valves, parts, equipment, and services. The company was formerly known as Kelso Resources Ltd. and changed its name to Kelso Technologies Inc. in July 1994. Kelso Technologies Inc. was incorporated in 1987 and is headquartered in Surrey, Canada.

Tel-Instrument Electronics Corp. designs, manufactures, and sells avionics test and measurement solutions for the commercial air transport, general aviation, and government/military aerospace and defense markets in the United States and internationally. It operates in two segments, Avionics Government and Avionics Commercial. The company provides instruments to test, measure, calibrate, and repair a range of airborne navigation and communication equipment. Its products also include TS-4530A, an identification friend or foe test set; T-47/M5, a dual crypto test set; and AN/ARM-206, an intermediate level TACAN test set. In addition, it offers AN/USM-708 and AN/USM-719, which are communications/navigation radio frequency avionics flight line testers; TR-220, a test set that provides test capability for traffic and collision avoidance systems (TCAS), distance measuring equipment, and transponders; TR-36, a commercial navigation and communication test set that provide ramp testing; and TR-420, a ramp test set to test the operation of transponders and interrogators. Further, the company provides multifunction ramp test sets under the T-47NC, T-47NH, and T-47G names; TR-100AF, a rugged ramp test used to verify airborne TACAN equipment; and AN/APM-480A, a transponder, interrogator, and TCAS test set. It sells its products directly or through distributors. The company was founded in 1947 and is headquartered in East Rutherford, New Jersey.