CarbonMeta Technologies, Inc. operates as an environmental research and development company in the United States. The company engages in the development and commercialization of carbon-negative concrete made from industrial, construction demolition waste, and mining waste. It is also involved in the research, development, and investigation of the use of microwaves to convert waste plastics and bio-waste materials into hydrogen gas, synthetic organic gases, and carbon products. CarbonMeta Technologies, Inc. is based in Woodinville, Washington.