Parametrix

John Willis

President and Chief Executive Officer

Joined Parametrix in 2017 and became CEO in 2023 after serving in a variety of leadership positions and managing significant infrastructure projects.

Nathan Johnson

Senior Vice President

Joined Parametrix in 2022 and has extensive experience building teams and delivering transportation needs while overseeing offices in California, Nevada, New Mexico, and Utah.

Leslie Sowles

Director of Human Resources

SPHR, SHRM-SCP

Joined Parametrix in 2024 and specializes in HR compliance and policy development, conflict resolution, leadership development, and building strong and diverse teams.

Brent Diemer

Executive Vice President and Chief Strategy & Delivery Officer

Joined Parametrix in 2022 with more than 25 years of industry experience specializing in financial management, business growth and expansion strategy, and organizational culture development.

Denise Ledingham

Director of Communication & Client Outreach

Joined Parametrix in 2000 and has held several roles within the practice centered on communication and cross-office collaboration.

Darby Watson

Senior Vice President

AICP

Joined Parametrix in 2019 and brings strategic leadership experience overseeing transportation and urban planning programs across the Washington offices.

Roger Flint

Executive Vice President and Chief Operating Officer

Joined Parametrix in 2017 and has extensive experience in infrastructure development and all aspects of public works, transportation, and utility operations.

Richard Roche

Senior Vice President

RG, LHG

Joined Parametrix in 2002, has worked as a project manager as well as part of the leadership team, and oversees the Oregon and Idaho offices.

Elisa Young

Director of Government and Community Relations

JD

Joined Parametrix in 2023.