Stephen Ellis is an Environmental Scientist / Industrial Hygienist for the United States within the Environmental, Health & Safety Division of J.S. Held LLC. He has over 15 years of experience in the environmental field, beginning his career in environmental abatement and demolition services before transitioning into consulting with a focus on hazardous materials management.
Scott Green brings over 35 years of experience as a respected environmental consultant and testifying expert. He has a proven track record of delivering insight across a broad range of environmental matters, including underground storage tanks (USTs), PFAS-related issues, professional liability, and cost analysis. His knowledge and ability to clearly articulate complex environmental challenges make him a trusted resource in litigation and advisory engagements.
Brian is a licensed Professional Geologist with more than 30 years of experience in the environmental industry.
Patrick Wallior is a Certified Safety Professional (CSP) with nearly 30 years of comprehensive EHS leadership across diverse industries.
Maverick Crawford, CSP, CAC, PMP, CMI, CDPH I/A, joined J.S. Held in May of 2026 as part of J.S. Held's acquisition of Clark Seif Clark, Inc.