Onterris

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Environmental health and safety consulting and software delivery stayed tightly aligned, giving the client a clearer path from evaluation to execution

For companies in high-impact sectors, environmental performance is no longer just about doing less harm, it’s also about building value

Reports, regulatory analysis and technical perspectives on air quality, PFAS, methane, remediation, water and climate, written by practitioners working in these areas.

Targeted remediation, selective demolition and funding alignment preserves historic façade while accelerating the development of flexible community space

Vijay Manthripragada and Lauren Dowling share the vision behind Onterris and its purpose to advance environmental progress through integrated expertise and partnership.

Montrose Environmental Group is now Onterris, a unified global environmental solutions company advancing progress through science-driven consulting, testing and treatment.

Onterris won a Judges’ Choice award in the 2026 Environment+Energy Leader Awards for its PFAS-free water project.

Open roles and culture context for scientists, engineers, field specialists and EHS professionals who want to work on substantive environmental problems.

Flexible benefits, learning programs, career development and a team that takes the work seriously. What day-to-day life at Onterris actually looks like.

Allan Dicks serves as Chief Financial Officer of Onterris. He brings deep finance leadership across public companies, private businesses and private equity-backed environments, with a track record of supporting acquisitive growth.

Meet Derek Street, Principal Geologist at Onterris, with expertise in site assessments, brownfield redevelopment, AAI standards and regulatory compliance.

Gary leads a team of environmental professionals focused on assessment, remediation, and liability management for contaminated sites

Meet Kyle Lapic, Solid Waste Sector Leader at Onterris, with 15+ years of expertise in landfill strategy, waste management and environmental consulting.

Vijay Manthripragada shares Onterris’ vision for integrated environmental solutions, technology-driven innovation and progress for clients, communities and the planet.

Onterris commits to identifying, disclosing, and managing conflicts of interest to ensure objective, transparent actions aligned with client and stakeholder interests.

Expert contaminated land, PFAS, and water assessment across Australia. EPA-accredited auditors in QLD, NSW, VIC & SA, backed by Onterris global treatment capabilities.

From PFAS remediation to LDAR compliance and groundwater assessment. Onterris delivers environmental solutions built for Canada's evolving federal and provincial regulatory landscape.

Reach the right team for emergency response, laboratory submissions, compliance questions or project inquiries. A specialist will follow up to discuss your situation.

Offices and accredited laboratories across the U.S., Canada and Australia. Find the nearest location for consulting, testing or treatment support.

Onterris provides trusted environmental consulting, testing, remediation, and emergency response services to help organizations stay compliant and mitigate risk.

Onterris outlines its commitment to protecting personal information and privacy in its privacy notice.

Onterris secures a **Success Memo** from the **Defense Innovation Unit**, allowing the **U.S. Department of War** to adopt its **PFAS treatment prototype** without further competitive bidding. The memo validates Onterris’ proven solutions for addressing **per- and polyfluoroalkyl substances (PFAS)** contamination, streamlining deployment for military applications.

Oct 2026Onterris, Inc.News article

Onterris climbs to fifth place in a global ranking of pure-play environmental firms, highlighting its growth and leadership in addressing environmental challenges. The independent industry assessment underscores the company’s expanding role in sustainability solutions. Onterris continues to innovate within its specialized sector, reinforcing its position among top environmental service providers.

Oct 2026Onterris, Inc.News article

Onterris publishes its 2025 Sustainability Report, outlining advancements in its 2040 net-zero emissions pledge. The report details key performance metrics and initiatives aimed at enhancing climate resilience. The company emphasizes long-term strategies to reduce environmental impact across its operations.

Sep 2026Onterris, Inc.News article

Onterris secures a **C$9 million contract** to provide environmental services for a major Canadian natural gas infrastructure project. The award strengthens its role in supporting responsible development within the energy sector. The consulting work aligns with growing demand for sustainable practices in large-scale natural gas investments.

Sep 2026Onterris, Inc.News article