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.

Introducing Onterris: For Planet and Progress

Vijay Manthripragada, President and Chief Executive Officer, and Lauren Dowling, SVP, Marketing and Communications, share the story behind Onterris - why the brand exists, what it represents, and why it comes at a pivotal moment. Rooted in more than a decade of growth, their reflections speak to the evolving environmental landscape, increasing complexity facing organizations, and the need for a trusted partner who can think in systems and act with clarity. Onterris brings a unified purpose and a clear commitment to protecting the planet while advancing human progress through integrated expertise, accountability, and long‑term partnership.
aerial shot of stock boat in canyon

Explore Our Thinking

Real-Time Fenceline Monitoring for Industrial Sites

See how real-time fenceline monitoring helps industrial operators detect emissions faster, investigate sources and turn air data into operational intelligence.

Federal Methane Rules in 2026: What Oil and Gas Operators Need to Do Now

Operators that act on measurement, documentation and system readiness now will strengthen performance and stay ahead of compliance

The Role of Stack Testing in OGMP 2.0 Gold Standard

Applying the power of FTIR stack testing to quantify methane slip and reconcile inventories with confidence

Understanding TFA: The Ultra-Short-Chain PFAS Environmental Leaders Should Watch

A fast-moving contaminant gaining scientific and regulatory focus

How to Revitalize Abandoned Properties

Learn how communities can revitalize abandoned properties through adaptive reuse, infill, redevelopment, environmental planning and funding strategies.

Preparedness Starts Before the Incident

Organizations that invest in readiness respond faster, safer and with greater confidence

Public Trust Is the Foundation of Successful Transit Project Development

Confidence built during construction drives predictable delivery and lasting impact

The EU Methane Regulations That Reshaped Global Energy Markets

Energy producers that want access to European markets must strengthen methane measurement, verification and transparency across their supply chains