OUR HISTORY
Terrell Technical Services, Inc. (TTSI) was founded on one simple belief: that environmental and workplace safety solutions should be rooted in both science and integrity. Since our inception, we’ve built our reputation on delivering dependable Environmental, Health, and Safety (EHS) consulting services to clients across industries that demand precision and accountability. Our work has supported organizations in manufacturing, education, healthcare, government, and beyond — helping them meet complex regulatory requirements while maintaining healthy, safe environments for their people and communities.
Starting in 2003, TTSI has grown from a small consulting practice into a trusted partner known for technical excellence and personalized service. Our team’s collective experience spans environmental science, industrial hygiene, chemistry, biology, and geology — bringing a multidisciplinary approach to every project. What has never changed is our commitment to doing what’s right: providing clear, defensible data, practical solutions, and the highest level of professionalism. At TTSI, our story is one of continuous learning, strong relationships, and a shared purpose — protecting people, property, and our environment.