Cleanup Capital Flows Into PFAS Tech

Leonid Capital backs AxNano as mounting US PFAS cleanup costs push investors toward deployable destruction technology

9 Mar 2026

A defence-focused investment firm has backed a North Carolina company developing technology to destroy PFAS chemicals on site, reflecting growing investor interest in environmental remediation across the US.

Leonid Capital Partners, a private investment firm and official US Department of Defense Trusted Capital Provider, said on February 2 that it had invested in AxNano, a Durham-based company building modular systems designed to eliminate per- and polyfluoroalkyl substances, widely known as “forever chemicals”. Financial terms were not disclosed.

The systems are intended for deployment at military bases, industrial facilities and municipal water infrastructure, where contamination from PFAS compounds has become a rising regulatory and financial risk.

Pressure on operators has intensified as federal standards for two of the most widely studied PFAS chemicals, PFOA and PFOS, are now set at four parts per trillion in drinking water. Several US states have introduced additional rules, adding compliance costs for water utilities, manufacturers and military installations.

Industry analysts estimate that nationwide remediation costs could reach tens of billions of dollars. The Department of Defense alone oversees hundreds of sites identified as contaminated with PFAS compounds, many linked to historical use of firefighting foams.

AxNano’s AxSure platform uses compact reactor units designed to destroy PFAS directly where contamination occurs. The company says the modular systems can be installed more quickly than traditional treatment plants, which often require extensive permitting and construction.

AxNano has secured contracts through a number of federal and state PFAS response programmes, according to the company.

“PFAS isn't an emerging environmental issue anymore,” said James Parker, co-founding partner of Leonid. “It's an infrastructure liability with real balance sheet consequences.”

AxNano chief executive Doug Speight said the company plans to expand manufacturing capacity and increase deployments through 2026, targeting defence, industrial and municipal customers.

Private investors have increasingly begun to treat environmental compliance technologies as infrastructure investments rather than early-stage research projects. As federal standards tighten and remediation programmes expand, companies able to demonstrate measurable PFAS destruction are drawing greater attention from capital providers.