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.
Employee Spotlight

Where Passion Meets Environmental Science

Andrew Schmalfuss, Senior Project Manager and Lead Avian Biologist at Onterris, explains how a lifelong focus on birds shapes smarter decisions in energy development.

For Andrew, protecting wildlife and building infrastructure are not competing priorities. They are connected responsibilities. His work proves that planet and progress can move forward together, with care and precision.
Andrew Schmalfuss the Falconer
Details That Matter

Why details make the difference

As a falconer, Andrew measures every variable when caring for his red‑tailed hawk. Weight, weather and daily conditions all matter. Small changes can have lasting effects.

That same discipline defines his consulting work. Environmental permitting varies by county, state and country. Catching nuanced differences protects species, supports responsible development and keeps projects moving forward with confidence.

Attention to detail is not optional. It is how science delivers results.
For planet and progress means that we care for and steward what we have right now on our planet, and that we ensure that the comforts and the necessities of energy and progress happen simultaneously at the same time. And this is possible.
Andrew Schmalfuss, Senior Project Manager at Onterris

Explore Our Insights

Keeping the Finch West Light Rail Project on Track Through Environmental Stewardship

Delivering complex transit infrastructure while keeping environmental commitments actionable, consistent and built into every decision on the ground

Continuous Emissions Monitoring Systems: A Key Enabler of Permit Protection

Real-time emissions data does more than meet EPA requirements, it protects operations and strengthens compliance decisions

Why Early Site Due Diligence Matters for Greenfield Renewable Projects

For renewable energy developers, early assessments identify environmental risk and set the foundation for successful, sustainable and cost-saving developments

What Alberta’s Updated Pneumatic Pump Rules Mean for Oil and Gas Operators

Biannual inspections, OVG reporting and chemical reconciliation requirements raise the bar for emissions verification

New Rules of Methane Accountability: Subpart W and OGMP 2.0 Converge

Why methane inventories are shifting from estimation to measurement

Fast-Tracking Regional Climate-Resilient Road Recovery Across Northern NSW

A coordinated approvals program kept priority road and bridge works moving while protecting local waterways and biodiversity

Appendix K Certification: Why OGI Compliance Demands Expertise and Discipline

The technical standard that determines whether your methane emissions data withstands regulatory scrutiny