Claros Technologies, a Minneapolis company that destroys PFAS, the so-called forever chemicals, announced a $55m Series B on 28 July 2026. Treehouse Family Capital led the round, which includes a previously announced convertible note financing.
Daikin America, Veralto, the Bush Foundation, Nord Asset Management and the Saint Paul & Minnesota Foundation took part, along with existing investors. The amount of the convertible note and the valuation were not disclosed.
“Over the past year, Claros has crossed the threshold from breakthrough technology to successful commercial reality.”Michelle Bellanca, CEO and Co-Founder, Claros Technologies
What Claros does
The company was founded in 2018 and has two divisions. ClarosTech offers permanent PFAS destruction using its ClarosTechUV system, which it describes as affordable, high-flow, scalable and field-ready and able to destroy long-, short- and ultra-short-chain PFAS. ClarosLabs is an analytical laboratory accredited to ISO/IEC 17025:2017 for PFAS testing.
Michelle Bellanca is chief executive and co-founder. Jack Cogen, manager of Treehouse Family Capital, said Claros has demonstrated that its technology is effective under real-world commercial conditions. Twin Cities Business reported that Claros has 50 employees.
Milestones
In December 2025, with Daikin America, Claros completed what it called one of the world's largest in-field PFAS destruction demonstrations on industrial process water, reporting greater than 99.99% destruction across long-, short- and ultra-short-chain compounds. In April 2026 it reported at least 99.99% destruction of targeted PFAS in concentrate from about one million gallons of groundwater.
Claros named Daikin America as an investor and demonstration partner. It referred more broadly to major industrial manufacturers, remediation firms, utilities and government agencies as customers and targets, and to semiconductor, aerospace, pharmaceutical and healthcare sectors. These performance figures are company reports.
Funding history
Twin Cities Business reported that Claros closed a $5m Series A in 2021 and raised an additional $22m in 2024, and that total funding to date is $84.5m. The newspaper noted that it had been five years since the company's last funding round.
Twin Cities Business said six investment firms or foundations supported the Series B, and named only Daikin America.
What the money is for
Claros said the proceeds will expand manufacturing capacity, fund commercial deployments in North America, Europe and Asia, support product development, grow ClarosLabs, and pay for hiring in engineering and commercial operations. Bellanca said the financing gives the company the resources to accelerate commercial deployments globally.
Why destruction matters
Pulse 2.0 explained that PFAS are a large class of synthetic chemicals valued for resisting heat, oil, water and chemical degradation, and that their persistence has caused widespread contamination concerns. The United States and Europe are tightening drinking water standards, remediation requirements, industrial discharge controls and proposed restrictions, which is driving demand for technologies that permanently destroy the chemicals.
The ClarosTechUV system is designed to destroy PFAS rather than remove them and move them into another waste stream. ClarosLabs detects, quantifies and documents PFAS concentrations for industrial customers, remediation companies, utilities and government agencies. Cogen said the most exciting technology companies eventually reach an inflection point.
Company website: clarostech.com