About Thomson Environmental

Based in San Diego, California, Thomson Environmental provides biological consulting services to support development, infrastructure, energy, and restoration projects throughout Southern California. Our focus is on delivering clear, practical biological solutions that help projects move forward efficiently while maintaining compliance with regulatory requirements.

About Chris Thomson

Chris Thomson is a Principal Biologist and Environmental Consultant with nine years of experience supporting projects across California, with primary expertise in southern California, and additional experience in northern California and southern Oregon.

Chris has served as both a project manager and field biologist on a wide range of projects, including utility-scale solar, infrastructure improvements, restoration, and residential development. His experience spans the full project lifecycle—from early-stage biological due diligence and constraints analysis through construction monitoring and compliance.

Technical Expertise

Chris specializes in biological due diligence, constraints analyses, and sensitive species surveys, with a strong emphasis on providing defensible technical work and practical, field-based solutions.

He holds a USFWS Section 10(a)(1)(A) permit for coastal California gnatcatcher, Quino checkerspot butterfly, and listed large branchiopods, and has extensive experience conducting protocol-level and focused surveys for a range of sensitive species, including:

  • Western burrowing owl

  • Crotch’s bumble bee

  • Coachella Valley fringe-toed lizard

  • Nesting birds

  • Sensitive Plants

Additional expertise includes vegetation mapping, aquatic resource delineations, and biological monitoring.