Meet Our Team

Leadership
Alan Katz

Alan Katz

Chief Executive Officer

Bryan Katz

Bryan Katz

President

Firmwide Support
Tina Barron

Tina Barron

Director of Contracts

Nicholas Kehoe

Nicholas Kehoe

Chief Financial Officer

Heather Rigdon

Heather Rigdon

Human Resources Coordinator

Katie Woods

Katie Woods

Marketing and Outreach Specialist

Toxicology and Life Sciences
Nelson Cornwell

Nelson Cornwell

Associate Scientist

Lisa Davis

Lisa Davis

Regulatory Specialist

Olwyn Diggins

Olwyn Diggins

Senior Associate Scientist

Jennifer Fulford

Jennifer Fulford

Manager of Scientific Projects

Christine McAlinden

Christine McAlinden

Associate Director

Melba S. Morrow

Melba S. Morrow

Director of Toxicology

Sweta Ojha

Sweta Ojha

Staff Scientist

Nicole Perkinson

Nicole Perkinson

Manager of Regulatory Affairs

Will Ruddock

Will Ruddock

Nonclinical Toxicology Consultant - Senior Scientist

Crystal Turner

Crystal Turner

Office Administrator

Connie Welch-DuJardin

Connie Welch-DuJardin

Vice President - Life Sciences

Gary K. Whitmyre

Gary K. Whitmyre

Senior Director of Exposure and Risk Assessment

Engineering and Behavioral Sciences
Allyson Barlow

Allyson Barlow

Research Scientist

Katie Belt

Katie Belt

Junior Transportation Engineer

Aaron Benson

Aaron Benson

Senior Human Factors Scientist

Paige Braude

Paige Braude

Transportation Engineer

Holly Casey

Holly Casey

Team Leader - Land Development

Gaby Cross

Gaby Cross

Transportation Engineer

Joy Davis

Joy Davis

Team Leader - Transportation Policy and Engagement

Erin Filler

Erin Filler

Director of Traffic Engineering

Sadie Hughes

Sadie Hughes

Junior Transportation Engineer

Steve Jackson

Steve Jackson

Senior Statistician

Amanda Keller

Amanda Keller

Research Assistant

Katrina King

Katrina King

Research Assistant

Dave Kirschner

Dave Kirschner

Team Leader – Operations and Safety

Erin Kissner

Erin Kissner

Senior Associate Scientist

Pamela Kryschtal

Pamela Kryschtal

Transportation Engineer

Caleb Losh

Caleb Losh

CADD Lead

Sabrina Mesawich

Sabrina Mesawich

Junior Transportation Engineer

Sheryl Miller

Sheryl Miller

Director of Human Performance and User Experience

Venkat Nallamothu

Venkat Nallamothu

Director of Traffic Engineering

Ginny O'Connor

Ginny O'Connor

Transportation Engineer

Phea Padgett

Phea Padgett

Administrative Assistant

Kase Poling

Kase Poling

Transportation and Resilience Engineer

Paula Raymond

Paula Raymond

Senior Scientist

Carrie Redden

Carrie Redden

Director of Health and Planning

Rob Redden

Rob Redden

Applications Developer

Jennifer Symoun

Jennifer Symoun

Vice President – Engineering and Behavioral Sciences

Stephen Taylor

Stephen Taylor

Transportation Data Scientist

Katie Wheeler

Katie Wheeler

Research Scientist