The 12 closest competitors and alternatives to Claros (claros.tech) among clean technology companies — ranked by similarity to what Claros (claros.tech) actually does, not by market-cap band.
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Claros Technologies Inc. is a privately held company based in Minneapolis, Minnesota, founded in 2018 with a focus on destroying PFAS pollutants.
Claros (claros.tech) is a clean technology company headquartered in United States. It has raised at least $85M across the 2 funding rounds on record. Its most recent funding round, Series B, raised $55M in July 2026. Xcout recorded 1 job posting from Claros (claros.tech) in the last 90 days.
At least $85M raised across the 2 rounds on record. Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series B | $55M | — | |
| Series B | $30M | 2 named |
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Xcout recorded 1 job posting from Claros (claros.tech) in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see Claros (claros.tech)'s hiring signals →
Ranked by semantic similarity — how close each company is to Claros (claros.tech) by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Clean Tech
Carba is a privately held biocarbon and carbon removal company founded in 2021 and headquartered in Minneapolis, Minnesota. The company converts the world's waste into solid biocarbon used for industrial materials, permanent carbon removal, and pollution management.
Water Technology
OriginClear, Inc. delivers water treatment solutions across the globe. The company licenses its innovative Electro Water Separation technology, which employs a catalytic process to concentrate and remove suspended solids found in commercial and industrial wastewater. Additionally, they utilize Advanced Oxidation technology to effectively reduce or eliminate dissolved organic microtoxins. Beyond technology licensing, OriginClear designs and manufactures a diverse range of water treatment systems catering to municipal, industrial, and pure water requirements. Their service offerings encompass maintenance agreements, system retrofits, and replacement support. They also provide equipment rental options for varying contract lengths, alongside prefabricated products for water transport and treatment. Founded in 2007 and based in Clearwater, Florida, the company adopted its current name, OriginClear, Inc., in April 2015, having previously operated as OriginOil, Inc.
Climate Technology
Exterra Carbon Solutions, which operates as Exterra Technologies, is a privately held company founded in 2021 and headquartered in Montreal, Quebec, focusing on proprietary carbon and environmental technologies.
Climate technology
CZero, Inc. is a Colorado-based engineering services and contract research and development firm focused on advancing clean energy technologies across various sources and applications.
Similar clean technology company
Ionomr Innovations Inc. is a clean-technology company founded in 2018 and headquartered in Vancouver, British Columbia, that develops and markets advanced ion-exchange membranes and polymers.
Med Tech
FemtoFluidics is a biotechnology research company founded in 2021 and headquartered in Saint Paul, Minnesota. The small firm maintains a team of 2 to 10 employees focusing on specialized biotech innovations.
Similar clean technology company
Via Separations is an industrial filtration technology company headquartered in Watertown, Massachusetts, that develops energy-efficient separation processes for manufacturing industries.
Water Technology
KETOS Inc. combines IoT hardware with AI/ML analytics to deliver digital water intelligence and real-time sensor insights, supported by in-house laboratory testing services from its California division.
Water Technology
Cleanwater1 is a provider of water quality solutions offering end-to-end water and wastewater treatment products. Operating with primary locations in Milpitas, California, and Vineland, New Jersey, the company serves utility and municipal markets.
Hydrogen Technology
Hydrogen Mem-Tech is a clean-technology company founded in 2017 in Trondheim, Norway. The firm develops innovative membrane technology for hydrogen separation and purification to enable the green energy transition. It operates globally to support sustainable industrial gas processing and carbon reduction.
Climate Technology
Mission Zero Technologies develops electrochemical direct air capture technology that recovers carbon dioxide from the atmosphere at scale. The company provides solutions to carbon dioxide users, project developers, and scientists to enable permanent carbon sequestration, sustainable building materials, and e-fuels.
Clean Tech
pH7 Technologies is a Canadian company headquartered in Vancouver that develops next-generation critical-mineral extraction technologies for economical and sustainable primary and secondary metal extraction.
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