Montrose is now Onterris
Montrose Environmental Group, a leading environmental services company, is now Onterris.
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected.
Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and help protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress.
Onterris is a global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected.
Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and help protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress.
Solutions
Health, Safety & Chemistry
Bringing scientific precision to critical decisions
Legacy
A Legacy of Environmental Services and Innovation
Our legacy is built on a long history of leadership and expertise in environmental services, including air quality solutions, emissions testing, environmental consulting and analytical services. By combining deep local knowledge and a broad network of technical experts, Onterris delivers solutions that are both scalable and tailored to support clients across diverse geographies and regulatory environments.
Through streamlined operations, integrated services and continued investment in emerging technologies, Onterris carries forward Montrose’s commitment to staying ahead of evolving environmental demands. The result is a more connected, agile platform designed to help organizations navigate complexity with confidence.
At Onterris, we approach every challenge with urgency, a commitment to delivering value and a relentless focus on excellence. Together, we will continue the standard established by Montrose and expand what’s possible for the future of environmental solutions, for planet and progess.
Through streamlined operations, integrated services and continued investment in emerging technologies, Onterris carries forward Montrose’s commitment to staying ahead of evolving environmental demands. The result is a more connected, agile platform designed to help organizations navigate complexity with confidence.
At Onterris, we approach every challenge with urgency, a commitment to delivering value and a relentless focus on excellence. Together, we will continue the standard established by Montrose and expand what’s possible for the future of environmental solutions, for planet and progess.
Legacy Montrose Environmental Group Brands
Enthalpy Analytical
Enthalpy Analytical is now Onterris, providing accredited environmental laboratory testing, data analysis, and regulatory support across a national network of labs.
Environmental Standards
Environmental Standards, a trusted provider of environmental chemistry and quality assurance consulting, laboratory auditing, and data validation services, is now Onterris.
Spirit Environmental
Spirit Environmental LLC, a Houston-based environmental consulting firm, is now Onterris
Sensible EDP
Sensible EDP is now Onterris, providing real-time environmental data monitoring, emissions tracking, and data integration for regulatory compliance and operational insights.
Two Dot Consulting
Two Dot Consulting, a veteran-owned environmental and engineering consulting firm based in Colorado, is now Onterris.
Epic Enviromental
Specialist environmental consultants delivering practical, science‑led solutions across Australia and internationally.