Business Details
24 Years
experience
Trusted Environmental, Engineering & Energy Solutions in Knoxville, TN
Strata-G has been a trusted multidisciplinary environmental, engineering, and energy firm for over 20 years, headquartered in Knoxville, Tennessee. Our team of 345+ skilled professionals, including 45+ veterans, delivers innovative solutions to complex challenges for government and commercial clients across the U.S., UK, and Canada. With 75% of our team holding higher education degrees and 250+ technical certifications, we specialize in regulatory compliance, hazardous materials management, and resilient environmental stewardship. Our engineering expertise ensures safe, efficient infrastructure development, while our energy solutions focus on nuclear operations and the transition to reliable energy systems. We combine decades of experience with a commitment to integrity, service, and quality, driving measurable results for clients.Our work extends beyond projectswe actively support community initiatives like the Grassroots Initiative, Clinch Valley Trail Alliance, and Juvenile Diabetes Research Foundation. Recognized with awards including the Rocky Top Business Award and HIRE Vets Platinum Medallion, we prioritize employee well-being and foster a culture where teamwork creates lasting change. From conceptual design to project completion, we ensure client goals are met with excellence and efficiency. Our leadership team, including President John Patterson and COO Leah Berry, brings deep industry expertise and a shared vision for solving todays challenges while securing a brighter future.
Services
Project Controls
Project Management
Process Improvement
Compliance Services
Waste Management
Engineering Services
Nuclear Operations
Facilities Management
Environmental Solutions
Safety & Health Consulting
Details
- Year established: 2002
Highlights and features
- We have over 20 years of experience in environmental, engineering, and energy solutions.
- Our team includes 345+ professionals, with 75% holding higher education degrees.
- We maintain 250+ technical certifications for specialized expertise in compliance and safety.
- We prioritize veteran hiring, with 45+ veterans contributing to our workforce.
- Our ISO 9001 and ISO 14001 certifications ensure quality and environmental management excellence.
Associations and certifications
- ISO 9001
- ISO 14001
- OHSAS 18001
What people say
Best team I've ever worked with
Fantastic company to work for
Exceeded expectations
Exceptional leadership
Community-focused values
Services
Project Controls
Strata-Gs project controls ensure timely, budget-conscious delivery of complex projects. Our team provides cost estimating, scheduling, and performance analysis, leveraging earned value management and risk mitigation strategies. Clients benefit from seamless stakeholder coordination and adherence to quality and safety standards.
Project Management
Our project management services integrate planning, resource allocation, and risk management to optimize outcomes. With certified PMPs leading initiatives, we ensure transparency and alignment with client goals. Expertise spans infrastructure development, facility design, and critical government projects.
Process Improvement
Strata-G enhances operational reliability through process improvement and risk management. We conduct hazard reviews, value stream mapping, and ISO compliance audits. Our focus on Human Performance Improvement (HPI) ensures safe, efficient systems for government and private-sector clients.
Environmental Solutions
We provide environmental compliance strategies, remedial investigations, and EMS development. Our team addresses hazardous materials, legacy contamination, and permitting needs. Clients receive tailored solutions to reduce costs and ensure adherence to CERCLA, RCRA, and ISO 14001 standards.
Safety & Health Consulting
Strata-Gs safety experts deliver OSHA-compliant programs and hazard mitigation. With a corporate EMR of 0.77 and 3.5M+ safe hours, we specialize in industrial hygiene, radiological controls, and ES&H program development for high-hazard environments.
People
John Patterson
President / Chief Executive Officer
John Patterson leads Strata-G with a vision for innovation and community impact. With decades of industry experience, he drives strategic growth while upholding the companys core values of integrity, service, and quality.
Leah Berry
Chief Operating Officer, Business Services
Leah Berry oversees business operations, ensuring efficient delivery of Strata-Gs environmental and engineering solutions. Her leadership focuses on client satisfaction, employee development, and fostering a culture of excellence.
Kevin Mitchell
Vice President, Compliance Services
Kevin Mitchell directs compliance initiatives, leveraging his expertise in regulatory frameworks and environmental stewardship. He ensures clients meet evolving standards while achieving operational efficiency and sustainability goals.
Tim Hale
Director, Infrastructure Services
Tim Hale leads infrastructure projects with a focus on safety and technical excellence. His team designs and manages complex systems, ensuring long-term reliability and alignment with client objectives.
Michael Russell
Director, Nuclear Services
Michael Russell oversees nuclear operations, ensuring quality assurance and compliance in high-stakes environments. His expertise supports clients in transitioning to reliable energy solutions while maintaining safety standards.
Questions
What industries does Strata-G serve?
Strata-G supports government agencies, academic institutions, commercial enterprises, and public utilities with environmental, engineering, and energy solutions.
Does Strata-G work internationally?
Yes, we serve clients in the U.S., UK, and Canada, delivering tailored solutions for diverse regulatory and operational environments.
How does Strata-G support veterans?
We prioritize veteran hiring, with 45+ veterans in our workforce, and partner with programs like HIRE Vets to support military families.
What certifications does Strata-G hold?
We maintain ISO 9001, ISO 14001, and OHSAS 18001 certifications, ensuring quality, environmental, and safety excellence.
