Greentech could refer to:
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Cleantech
Clean technology, in short cleantech, is any process, product, or service that reduces negative environmental impacts through significant energy efficiency improvements, the sustainable use of resources, or environmental protection activities. Cl ...
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Green technology
Environmental technology (envirotech) or green technology (greentech), also known as ''clean technology'' (''cleantech''), is the application of one or more of environmental science, green chemistry, environmental monitoring and electronic device ...
, also called environmental technology
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GreenTech ITM, a U.S.-based company that creates modular turf systems
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GreenTech Automotive, a U.S.-based "green" automobile manufacturer
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