United States Resources

Everything you need for this transition is right here: name change letters, W-9 forms, a Certificate of Insurance and a corporate overview.

Choose a legacy entity below to access the related documents.

Aerial view of cultivated farmland with neat crop rows stretching toward the horizon under a colorful sunset sky.

Employee in safety vest driving inside truck

CTEH – The Center for Toxicology and Environmental Health, L.L.C.

ECT2 - Emerging Compounds Treatment Technologies, Inc.

Gloved hand placing a sample vial into a testing tray in a laboratory

Enthalpy Analytical, LLC

Professional reviewing environmental or safety data on a computer.

Environmental Intelligence, LLC

Environmental scientist analyzing monitoring data in a mobile laboratory

Environmental Standards, Inc.

Engineer in safety gear using a laptop at a solar farm with wind turbines in the background at sunrise or sunset.

FRS Environmental Remediation, Inc.

An Onterris employee setting up air sampling equipment in a field

MAQS – Montrose Air Quality Services, LLC

Two people wearing PPE Study a map in office

Montrose Environmental Group, Inc.

Environmental professional using field monitoring equipment outdoors.

Montrose Environmental Solutions, Inc.

Scientist using laboratory pipette to measure and transfer liquid samples during environmental chemistry testing and analysis.

Montrose Government Solutions, Inc.

MSE Group, LLC

Montrose Water and Sustainability Services, Inc.

Field technician operating solar-powered environmental monitoring equipment in a grassland setting.

Spirit Environmental, LLC

Employee wearing white gloves and pouring water sample into container with body of water in the background.

Two Dot Consulting, LLC

Brand Transition Questions?

Need help with the transition to the Onterris brand? Whether you need to confirm bank account information, complete vendor setup and forms, get support with contracts or legal matters, or request a certificate of insurance, our team is here to help.

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