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We cultivate people who build strong relationships, communicate openly and are passionate about their work — because collaboration and innovation thrive on these qualities. View Leadership View Our People

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Our People

Collaboration is the cornerstone of our success. Our people are its foundation.

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Darren Hartman Managing Principal & Construction Engineering Practice Leader

Kansas City

+1.816.412.1864

Walter Hartnett Senior Principal

New York

+1.917.661.7906

Amy Hattan Corporate Responsibility Officer

Portland, ME

+1.207.245.6072

Leandro Heine Associate Director

London

+44.(0)203.923.4236

Douglas Heinze Principal & Philadelphia Office Director

Philadelphia

+1.267.238.4034

Lauren Herbert Vice President

New York

+1.212.367.2822

Tamara Herrera Associate

New York

+1.212.367.2837

Melissa Hertel Vice President

Seattle

+1.206.336.7738

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Margie Hess Vice President

Ft. Lauderdale

+1.915.727.0009

Gary Heward Principal & Romsey Office Director

Romsey

+44.(0)1794.528.460

Steven Highfill Principal

New York

+1.212.367.3072

Christopher Hill Associate Principal

Houston

+1.281.456.4249

Jonathan Hill Vice President

Boston

+1.617.250.4161

Jacob Hoffman Vice President

Denver

+1.303.876.5714

Jeong Hong Vice President

New York

+1.614.937.1910

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Recent News

Courtesy Hartshorne Plunkard Architecture

Neutral Edison Breaks Ground in Milwaukee

June 26, 2025

On track to become the tallest mass timber building in North America, the 31-story residential tower is pursuing both Passive House and Living Building Challenge Core certifications.

Negativ, courtesy Las Vegas A’s Ball Park

Athletics Break Ground on Las Vegas MLB Ballpark

June 26, 2025

Major League Baseball comes to Vegas in a domed stadium with views of the Strip through one of the world’s largest cable-net glass facades.

Miami Herald: Take a look inside Inter Miami’s Miami Freedom Park Stadium

June 25, 2025

The new 25,000-seat home for soccer team Inter Miami is under construction and expected to open in Spring 2026, boasting the largest tensile canopy roof in the league.

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