Jake Twill

J.S. Held’s Inaugural Global Risk Report Examines Potential Business Risks & Opportunities in 2024

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Jake Twill is an experienced environmental scientist with a diverse background in on-site sampling, investigations, and long-term monitoring for environmental remediation and mitigation projects across New Jersey, New York, Pennsylvania, West Virginia, and Ohio. After graduating from Ursinus College with an Environmental Studies degree in 2020, Jake began his career as a field ecologist and environmental scientist with an ecological restoration firm, where he performed site investigations and technical reports for large and small-scale environmental mitigation projects. He has supported a diverse portfolio of projects through intensive data collection, analysis, and detailed environmental report writing.

Jake has since joined J.S. Held as an Environmental Scientist, continuing his career specializing in a wide scope of environmental remediation efforts.

Jake’s key responsibilities include performing Preliminary, Phase I, and Phase II Environmental Site Assessments as well as soil, groundwater, and indoor air sampling and investigations. Additionally, Jake prepares proposals, cost estimates, and technical reports as part of environmental due diligence projects and is responsible for coordinating with clients and overseeing subcontractors during on-site remediation activities.

Key Expertise

  • Phase I & II Environmental Site Assessments
  • Site Investigation & Remediation
  • Data Analysis
  • Technical Report Writing
  • Cost Estimate & Proposal Preparation
  • Contractor Scheduling & Oversight


  • 36-Hour Wetland Delineation Certification, September 2021
  • OSHA 40-Hour HAZWOPER Certification, June 2023

J.S. Held is recognized as an ENR Top 200 Environmental Consulting Firm and industry leader in the Verdantix Green Quadrant for Sustainability & ESG Consulting.