Meet Our Team
Meet the team of project managers, scientists, and specialists who bring their technical expertise and attention to each project.

Lindsay Benko
Soil Scientist I

Robin C. Brandt, Ph.D., PE
Vice President, Shareholder

Lisa Challenger
Chief Executive Officer, Shareholder

Jacob Hawkins
Soil Scientist II

Nickolas Hines
Environmental Scientist I

Trudy Johnston
Managing Director, Certified Operator, Shareholder

Thomas J. Krall
Senior Soil Scientist

Christine McLain, PMP
Data Specialist II

Mikayla Regan
Wastewater & Residual Scientist

Vanessa Spychola
Business Manager
Affiliations With Professional Organizations

The Water Environment Federation

Mid-Atlantic Biosolids Association

Pennsylvania Water Environment Association

Solid Waste Association of North America

American Water Works Association

The Central Pennsylvania Water Quality Association

Eastern Pennsylvania Water Pollution Control Operators Association

The Chesapeake Water Environment Association

California Association of Sanitation Agencies
WBE Certifications
Material Matters is a Woman-Owned Business Enterprise (WBE) certified with several agencies, including the agencies listed below.

The Women’s Business Enterprise National Council

Maryland’s Office of Minority Business Enterprise

Office of Historically Underutilized Businesses (NC)

Division of Minority and Women’s Business Development (NY)

Division of Minority and Women’s Business Development (NYC)

Pennsylvania Unified Certification Program