Who We Are
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect.
Sectors
Access deep environmental expertise tailored to your industry, with solutions built for real-world conditions.
Solutions
Prepare for escalating environmental risks with expert solutions designed to perform under pressure.
Our Thinking
Explore briefs, perspectives and articles that turn insight into action. Discover thought leadership that informs decisions and drives impact. See the ideas shaping environmental solutions and guiding your next move.
Cuture & Careers
Where brilliant people come together to turn environmental science into real-world progress for communities, industry and the planet.

ECT2 is now Onterris

ECT2 (Emerging Compounds Treatment Technologies), a leader in PFAS treatment and advanced water and vapor treatment technologies, is now Onterris.

ECT2 has built its reputation on solving complex contamination challenges, including PFAS, 1,4-dioxane and volatile organic compounds (VOCs). This expertise continues through Onterris, with expanded capabilities across engineering, remediation and environmental solutions.

Expanded Solutions

Legacy

Engineered for PFAS Treatment and Complex Contaminants

ECT2’s proprietary technologies, including advanced ion exchange resins and treatment systems such as Nanosorb®, are designed to efficiently remove contaminants and enable on-site regeneration. These systems have been successfully deployed worldwide to address PFAS and other emerging contaminants in water and vapor.

Onterris continues to support clients across PFAS treatment, water and wastewater treatment, vapor treatment, environmental remediation and regulatory compliance, building on the technology and expertise established by ECT2.
Employees discussing industrial piping and equipment.

Frequently Asked Questions