Who We Are
Our People
![Our People](https://www.sgh.com/wp-content/uploads/2021/08/R_170914_N8_lrg.jpg)
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](https://www.sgh.com/wp-content/uploads/2021/07/James-Parker-768x728.jpg)
James Parker
Chief Executive Officer
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![Niklas Vigener](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_Niklas_N2_medium-768x727.jpg)
Niklas Vigener
Chief Technical Officer
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![Martin Mullins](https://www.sgh.com/wp-content/uploads/2021/08/Martin-Mullins-1-768x728.jpg)
Martin Mullins
Chief Financial Officer
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![Vince Cammalleri](https://www.sgh.com/wp-content/uploads/2021/07/Vince-Cammalleri-768x728.jpg)
Vince Cammalleri
Building Technology Region Head, East
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![Amy Hackney](https://www.sgh.com/wp-content/uploads/2021/06/Amy-Hackney-768x728.jpg)
Amy Hackney
Building Technology Region Head, West
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![Aaron Lewis](https://www.sgh.com/wp-content/uploads/2021/06/Aaron-Lewis-768x728.jpg)
Aaron Lewis
Structural Engineering Region Head, East
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![Kevin Moore](https://www.sgh.com/wp-content/uploads/2021/07/Kevin-Moore-768x728.jpg)
Kevin Moore
Structural Engineering Region Head, West
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![Jesse Beaver](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_Jesse_medium-768x728.jpg)
Jesse Beaver
Head of Engineering Mechanics and Infrastructure
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Meet our divisional leaders.
![Benjamin Kosbab](https://www.sgh.com/wp-content/uploads/2021/06/CJ0A6609-Cropped-768x728.jpg)
Benjamin Kosbab
Engineering Mechanics and Infrastructure Division Head, Atlanta
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![Emily Hopps](https://www.sgh.com/wp-content/uploads/2021/07/Emily-Hopps-768x728.jpg)
Emily Hopps
Building Technology Division Head, Waltham
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![Susan Knack-Brown](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_Susan_medium-768x728.jpg)
Susan Knack-Brown
Building Technology Division Head, Boston
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![Greggrey Cohen](https://www.sgh.com/wp-content/uploads/2021/07/Greggrey-Cohen-768x728.jpg)
Greggrey Cohen
Structural Repair and Rehabilitation Division Head, Boston
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![John Thomsen](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_John_medium-768x728.jpg)
John Thomsen
New Structural Design Division Head, Boston
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![Scott DiFiore](https://www.sgh.com/wp-content/uploads/2021/07/DifioreHeadshot-768x728.jpg)
Scott DiFiore
Heavy Civil Division Head, Boston
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![Robert MacNeill](https://www.sgh.com/wp-content/uploads/2021/07/E_220826_N4-768x728.jpg)
Robert MacNeill
Structural Mechanics & Materials Division Head, Boston
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![Peter Nardini](https://www.sgh.com/wp-content/uploads/2021/07/Peter-Nardini-768x728.jpg)
Peter Nardini
Water & Industrial Infrastructure Division Head, Boston
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![Peter Babaian](https://www.sgh.com/wp-content/uploads/2021/07/Peter-Babaian-768x728.jpg)
Peter Babaian
Building Technology Division Head, Chicago
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![Christopher Hewitt](https://www.sgh.com/wp-content/uploads/2021/06/Hewitt-Christopher_11630-768x768.jpg)
Christopher Hewitt
Structural Engineering Division Head, Chicago
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![Jeffrey Kerr](https://www.sgh.com/wp-content/uploads/2021/07/Jeffrey-Kerr-768x728.jpg)
Jeffrey Kerr
Building Technology Division Head, Washington, DC
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![Emily Appelbaum](https://www.sgh.com/wp-content/uploads/2021/07/EmilyAppelbaumCroppedHeadshot-768x728.jpg)
Emily Appelbaum
Structural Engineering Division Head, Washington, DC
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![Dean Rutila](https://www.sgh.com/wp-content/uploads/2021/07/Dean-Rutila-768x728.jpg)
Dean Rutila
Building Technology Division Head, Houston, and Safety Director
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![Kevin O'Connell](https://www.sgh.com/wp-content/uploads/2021/07/Kevin-Cropped-768x728.jpg)
Kevin O'Connell
Structural Engineering Division Head, Los Angeles
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![Sean O'Brien](https://www.sgh.com/wp-content/uploads/2021/07/Sean-OBrien-768x728.jpg)
Sean O'Brien
Building Technology Division Head, New York
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![Nathaniel Smith](https://www.sgh.com/wp-content/uploads/2021/07/Nathaniel-Smith-768x728.jpg)
Nathaniel Smith
Structural Engineering Division Head, New York
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![Craig Allender](https://www.sgh.com/wp-content/uploads/2021/06/Craig-Allender-768x728.jpg)
Craig Allender
Building Technology Division Head, San Francisco Bay Area
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![William Bruin](https://www.sgh.com/wp-content/uploads/2021/07/Bill-Bruin-768x728.jpg)
William Bruin
Structural Engineering Division Head, San Francisco Bay Area
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![Frederic Grant](https://www.sgh.com/wp-content/uploads/2021/07/FredGrantHeadshot-768x728.jpg)
Frederic Grant
Engineering Mechanics and Infrastructure Division Head, Southern California
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![David Jacoby](https://www.sgh.com/wp-content/uploads/2021/08/JacobyHeadshotCropped-768x728.jpg)
David Jacoby
Engineering Mechanics and Infrastructure Division Head, Fire Engineering
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Meet our operational leaders.
![Jenifer Brannen](https://www.sgh.com/wp-content/uploads/2022/10/JenBrannenCropped-1-768x728.jpg)
Jenifer Brannen
Senior Director, General Counsel
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![Alissa Brownson](https://www.sgh.com/wp-content/uploads/2023/10/Alissa-Brownson-Cropped-Headshot-768x728.jpg)
Alissa Brownson
Director of Human Resources
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![Megan DeGuglielmo](https://www.sgh.com/wp-content/uploads/2021/07/MeganDeGuglielmoHeadshotUpdated-768x728.jpg)
Megan DeGuglielmo
Director of Talent Development
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![Jeremy Kamm](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_Jeremy_medium-768x728.jpg)
Jeremy Kamm
Assistant Controller
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![Benjamin Kusa](https://www.sgh.com/wp-content/uploads/2021/09/E_210913_Ben-Kusa_medium-768x727.jpg)
Benjamin Kusa
Director of Information Technology
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![Norman Perkins](https://www.sgh.com/wp-content/uploads/2021/07/E_210913_Norm_N6_medium-768x576.jpg)
Norman Perkins
Director of Applied Science & Research
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![Nicole Sparks](https://www.sgh.com/wp-content/uploads/2021/07/NicoleCropped-2-768x728.jpg)
Nicole Sparks
Director of Marketing
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