Our People

Solving complexity is our standard.

Whether making a seemingly impossible design a reality or solving a performance problem that has proven elusive, SGH brings clarity to complexity. Our teams deliver customized and reliable solutions for our client partners—advancing the meaning of what’s possible.

Our diverse staff—engineers, architects, scientists, and many other professionals—is led by seasoned principals, project managers, and thought leaders who seek to advance our industry while fostering our long-term client relationships.

Meet our leadership team.

James Parker

Chief Executive Officer

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Niklas Vigener

Chief Technical Officer

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Martin Mullins

Chief Financial Officer

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Vince Cammalleri

Head of Business Administration

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Emily Hopps

Building Technology Region Head, East

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Amy Hackney

Building Technology Region Head, West

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Aaron Lewis

Structural Engineering Region Head, East

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Jesse Beaver

Head of Engineering Mechanics and Infrastructure

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Meet our divisional leaders.

Benjamin Kosbab

Engineering Mechanics and Infrastructure Division Head, Atlanta

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Joshua Kivela

Building Technology Division Head, Waltham

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Susan Knack-Brown

Building Technology Division Head, Boston

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Greggrey Cohen

Structural Repair and Rehabilitation Division Head, Boston

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John Thomsen

New Structural Design Division Head, Boston

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Scott DiFiore

Heavy Civil Division Head, Boston

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Robert MacNeill

Structural Mechanics & Materials Division Head

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Peter Nardini

Water & Industrial Infrastructure Division Head

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Peter Babaian

Building Technology Division Head, Chicago

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Christopher Hewitt

Structural Engineering Division Head, Chicago

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Jeffrey Kerr

Building Technology Division Head, Washington, DC

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Emily Appelbaum

Structural Engineering Division Head, Washington, DC

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Nick Floyd

Building Technology Division Head, Houston

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Kevin O'Connell

Structural Engineering Division Head, Southern California

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Sean O'Brien

Building Technology Division Head, New York

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Nathaniel Smith

Structural Engineering Division Head, New York

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Craig Allender

Building Technology Division Head, San Francisco Bay Area

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William Bruin

Structural Engineering Division Head, San Francisco Bay Area

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Frederic Grant

Engineering Mechanics and Infrastructure Division Head, Southern California

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David Jacoby

Engineering Mechanics and Infrastructure Division Head, Fire Engineering

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Meet our operational leaders.

Jenifer Brannen

Senior Director, General Counsel

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Alissa Brownson

Director of Human Resources

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Megan DeGuglielmo

Director of Talent Development

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Jeremy Kamm

Assistant Controller

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Benjamin Kusa

Director of Information Technology

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Norman Perkins

Director of Applied Science & Research

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Nicole Sparks

Director of Marketing

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