US · FMCSA ACTIVE HAZMAT
ONTERRIS AIR QUALITY SERVICES LLC
dba ONTERRIS
North Little Rock, AR 72118 · DOT 2572313
Company profile
Web-discovered · as of 2026-07-30
Onterris (formerly CTEH) is a global environmental solutions firm specializing in air quality monitoring, emergency response, and data interpretation. As part of Montrose Environmental Group, they operate a specialized fleet primarily for air monitoring, site investigation, and remediation services.
Fleet use
Specialized service
Operating scope
National
Service model
dedicated
Equipment
specialized, box truck
Ownership
Subsidiary
part of Montrose Environmental Group
Employees
501-1000
HQ · 5120 Northshore Dr, North Little Rock, AR 72118
Active website, 2026 rebranding news (KTLO), and active job postings (LinkedIn/Indeed).
Registry record
Source FMCSA · as of 2026-08-01
Fleet size
125
power units
Activity
road freight carrier
private licence
In operation since
2015
190 drivers
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