About Phase 1 Environmental Consulting

We're a nationally recognized leader in environmental due diligence with a commitment to excellence, accuracy, and client satisfaction across our 76 locations.

Our Story

From our humble beginnings to becoming one of the nation's leading environmental consulting firms

National Expertise, Local Knowledge

Founded with a vision to provide exceptional environmental due diligence services nationwide, Phase 1 Environmental Consulting has grown from a single office to 76 locations across the United States. Our expansion has been driven by our commitment to excellence, deep technical expertise, and unwavering dedication to client satisfaction.

Our team of over 200 environmental professionals includes geologists, engineers, scientists, and specialists who understand the unique environmental challenges in each region we serve. This combination of national expertise with local knowledge allows us to deliver comprehensive, accurate, and timely environmental site assessments for commercial real estate transactions, lending requirements, and regulatory compliance.

76
Locations Nationwide
200+
Environmental Professionals
10,000+
ESAs Completed Annually
98%
Client Satisfaction Rate

Our Leadership Team

Meet the experienced professionals who guide our nationwide operations

Junior Yu

Chief Environmental Officer

With 19 years of experience in environmental due diligence, Junior leads our technical operations across all 76 locations. He holds an Environmental Science degree from Florida State University and has overseen more than 5,000 Phase I ESAs throughout his career.

Sarah Johnson

President

Sarah brings over 15 years of leadership experience in environmental consulting. Her strategic vision has driven our expansion to 76 locations while maintaining our reputation for quality and reliability.

Michael Rodriguez

Director of Operations

Michael oversees our nationwide operations, ensuring consistent quality across all locations. His background in both environmental science and business administration has been instrumental in our efficient growth.

Our National Presence

Serving clients with local expertise across the United States

Our Locations Across America

New York, NY
Los Angeles, CA
Chicago, IL
Houston, TX
Green Bay, WI
Dallas, TX
Philadelphia, PA
Phoenix, AZ
San Antonio, TX
San Diego, CA
Denver, CO
Boston, MA
Nashville, TN
Green Bay, WI
Austin, TX
Seattle, WA
San Francisco, CA
Detroit, MI
Charlotte, NC
Atlanta, GA

Our Core Values

The principles that guide our work and relationships

🔍

Technical Excellence

We maintain the highest standards of technical accuracy and thoroughness in all our environmental assessments, ensuring our clients receive reliable information for their decision-making.

⏱️

Responsiveness

We understand the time-sensitive nature of real estate transactions and commit to rapid response times and efficient project management without compromising quality.

🤝

Client Partnership

We view ourselves as partners in our clients' success, providing clear communication, transparency, and personalized service to meet their specific needs.

🌎

Environmental Stewardship

We are committed to supporting responsible development that minimizes environmental impact and promotes sustainable practices across the communities we serve.

Our Leadership Team

Meet the experienced professionals leading our nationwide operations

Mike Grogan

Founder & CEO

With over 17 years of experience in environmental consulting, Mike founded Phase 1 Environmental Consulting NJ in 2015. A Montclair State University graduate with a degree in Environmental Science, Mike has personally performed over 2,500 Phase I ESAs and managed more than 300 UST, AST, and site remediation projects. Under his leadership, the company has expanded to 76 locations nationwide.

Thomas Lee

Senior Environmental Scientist

Thomas has been with Phase 1 Environmental Consulting since 2016. He holds a bachelor's degree in Environmental Science from St. Joseph's University in Philadelphia and is currently pursuing a master's degree through St. Joseph's of Connecticut. Thomas provides technical leadership across our nationwide operations from his base in Edison.

Junior Yu

Director of Environmental Services

With 19 years in the environmental due diligence field, Junior brings extensive expertise to our team. A graduate of Florida State University's Environmental Science program, Junior oversees our technical operations and quality assurance programs across all 76 locations, ensuring consistent excellence in every assessment we deliver.

Our Journey

The growth of Phase 1 Environmental Consulting from regional firm to national leader

2015

Mike Grogan founds Phase 1 Environmental Consulting NJ after years of experience with All American Environmental and Alternative Petroleum.

2016

Thomas Lee joins the team, bringing expertise in environmental science and strengthening our technical capabilities.

2018

Company expands to Texas and California, opening new offices and building regional expertise in these key markets.

2020-2022

Rapid nationwide expansion begins, with offices opening across the Northeast, Southeast, Midwest, and Western regions.

2023

Junior Yu joins leadership team as the company reaches 50 locations nationwide.

2025

Phase 1 Environmental Consulting reaches 76 locations across the United States, becoming one of the nation's leading providers of environmental due diligence services.

Ready to Work With Us?

Whether you need a Phase I ESA for a single property or environmental due diligence services for multiple locations nationwide, our team of experienced professionals is ready to assist you.