Regional Leadership

John Adams

Global Practice Area Community Co-Leader, Co-Regional Managing Principal

+1 213.327.3600

 |  LinkedIn » John brings 20 years of experience as an architect, real estate strategist, and planner to his roles as Global...

Elizabeth Brink

Co-Regional Managing Principal, Work Sector Leader

+1 213.327.3683

 |  LinkedIn » Elizabeth is a Co-Regional Managing Principal of Gensler’s Southwest region as well as one of the firm’s Global...

Andy Cohen


+1 213.327.3610

 |  LinkedIn » Andy is one of two co-CEOs of Gensler, the world’s top architecture and design firm. He just celebrated his...

Office Leadership

Demetra Thornton

Managing Director, Principal

+1 213.327.3718

 |  LinkedIn » Demetra is a Managing Director in Gensler’s Los Angeles office, focused on design excellence and working across...

Michael White

Managing Director, Principal

+1 213.327.3629

 |  LinkedIn » Drawing on his extensive expertise in architectural design and real estate consulting and development, Michael...

Jill Wittnebel

Managing Director, Principal

+1 213.327.3865

 |  LinkedIn » Jill is a Managing Director in Gensler’s Los Angeles office. She brings over 25 years of experience in the...


Aaron Birney

Lifestyle Sector Leader, Design Director, Principal

+1 213.327.3608

 |  LinkedIn » Aaron is a designer who thrives on the fast-paced creative process of translating brands to the built...

Alan Young

Studio Director, Design Director, Principal

+1 213.239.8203

 |  LinkedIn » As a Principal and Studio Director for our Workplace Practice in the Los Angeles office, Alan brings more than...

Arpy Hatzikian


+1 213.327.3650

In her 25 years of professional experience, Arpy has earned a reputation as a leader in large-scale project...

Barbara Dunn

Studio Director, Principal

+1 213.327.3670

 |  LinkedIn » Barbara is a Principal and Studio Director at Gensler’s Los Angeles office. For over 30 years, she has created...

Daniel Stromborg

Design Director

+1 213.243.8799

 |  LinkedIn » Daniel joined Gensler in 2014 as the Southwest region’s Director of Product Development. Daniel applies his...

David Herjeczki

Design Director, Principal

+1 213.327.3723

 |  LinkedIn » David leads design with a deep commitment to innovation and a mission to create a positive impact on people...

Denise Zacky-Popoch

Studio Director, Principal

+1 213.327.3687

 |  LinkedIn » With more than 20 years of design experience, Denise leads a diverse range of projects, with a focus on media...

Duncan Paterson

Lifestyle Sector Leader, Principal

+1 213.327.3680

 |  LinkedIn » Duncan has devoted more than 30 years to creating vibrant, experience-driven architecture. A global leader of...

Dylan Jones

Community Sector Leader, Mobility Lab Director, Principal

+1 213.243.8838

 |  LinkedIn » Dylan is a licensed architect and strategic planner with over 20 years of experience in planning and design for...

Eric Stultz

Studio Director, Principal

+1 213.327.3690

 |  LinkedIn » In addition to his role as a Design Director, Eric is the director of a studio focused on large-scale...

Gene Watanabe

Design Director, Principal

+1 213.327.3710

 |  LinkedIn » Gene is a Design Director and Studio Leader in the Los Angeles office. In more than 35 years with Gensler, Gene...

Guy Williams

SW Design Management Leader, Principal

+1 213.327.3636

 |  LinkedIn » A licensed architect, Guy has served in various leadership roles at Gensler since joining in 2003. He is a...

J.F. Finn, III

Mixed Use & Retail Centers Leader, Principal

+1 617.619.5721

 |  LinkedIn » J.F. is a global leader in Gensler’s Mixed Use & Retail Centers practice, based in our Los Angeles office...

James Kelly


+1 213.327.3918

 |  LinkedIn » As a Principal and Project Architect with more than 20 years of diverse project experience across all phases of...

Jennifer Hamilton

Studio Director, Principal

+1 213.239.8255

 |  LinkedIn » As a Studio Director, Account Director, and driven Project Manager of Gensler Los Angeles’s Flex 1 team...

John Circenis



 |  LinkedIn » John is a Principal in the Los Angeles office with more than 30 years of experience in architectural design and...

John Wiedner

Design Manager, Principal

+1 310.529.8128

 |  LinkedIn » Throughout his 19 years with Gensler, John’s experience has extended beyond project management to collaboration...

Keith Thompson

Aviation Leader, Studio Director, Principal

+1 213.327.3760

 |  LinkedIn » Keith is an Aviation Leader with nearly 40 years of experience leading terminal design, master planning, and...

Kevin Rosenstein

Consulting & Real Estate Services Leader, Studio Director, Principal

+1 213.243.8841

 |  LinkedIn » A global leader of Gensler's Consulting & Real Estate Services practice, Kevin brings 25 years of diverse...

Kristi Sprinkel

Regional Marketing Director, Principal

+1 213.444.9806

 |  LinkedIn » As the Southwest Regional Marketing Director, Kristi guides the region’s marketing and communications...

Lee Pasteris

Design Director, Principal

+ 1 213.327.3884

 |  LinkedIn » Lee specializes in the creation of high-profile interiors for long-time Gensler clients like DreamWorks...

Mark Brungo

Global Account Director, Principal

+1 213.327.3600

 |  LinkedIn » As part of Gensler’s Strategic Accounts Hub, Mark currently leads the account for Alphabet Inc. In this role...

Michael Volk

Culture & Museums Leader, Design Director, Principal

+1 213.327.3991

 |  LinkedIn » With more than 28 years of experience designing, leading, and executing innovative architecture and urbanism...

Nathan Kim

Studio Director, Principal

+1 213.327.3875

 |  LinkedIn » In his role as Studio Director and Principal, Nathan combines more than 15 years of experience with a deep...

Olivier Sommerhalder


+1 213.327.3615

 |  LinkedIn » Olivier oversees design and realization for the Southwest region. A Gensler Principal, he supports a rigorous...

Peter Barsuk

Government & Defense Leader, Principal

+1 213.327.3743

 |  LinkedIn » Peter is a Government & Defense Leader; an expert in education, civic and office building projects; and a...

Robert Bischoff

Digital Experience Design Leader, Principal

+1 646.207.0878

 |  LinkedIn » As a leader in Digital Experience Design (DXD) for Gensler’s Southwest region, Rob focuses on bringing...

Ron Turner

Sports Leader, Studio Director, Principal

+1 213.327.3780

 |  LinkedIn » As a global Sports Leader at Gensler, Ron is one of the industry’s most recognized sports facility designers...

Ryan Ihly

Studio Director, Principal

+1 213.243.8746

 |  LinkedIn » Over his 25-year career, Ryan has partnered with clients in the media, technology, cultural, and institutional...

Serena Winner

Studio Director, Senior Project Manager, Principal

+1 213.327.3821

 |  LinkedIn » As a Studio Director of the Gensler Los Angeles commercial office building studio, Serena oversees a diverse...

Stephanie Koenig

Regional Operating Officer, Principal

+1 213.327.3630

 |  LinkedIn » As the Regional Operating Officer for our Southwest Region, Stephanie is responsible for all financial and...

Steve Chung

Sports Leader, Design Director, Principal

+1 213.327.3850

 |  LinkedIn » As a global Sports Leader and Design Director, Steve approaches each project with a strong design sensibility...

Terence Young

Aviation Leader, Design Director, Principal

+1 213.327.3807

 |  LinkedIn » With more than 25 years of experience in aviation and transportation, Terence has designed an impressive range...

Tim Sullivan

Aviation Leader, Studio Director, Principal

+1 213.327.3888

 |  LinkedIn » Tim Sullivan has over 30 years of experience in managing complex, large-scale projects and coordinating the...

Tom Ito

Hospitality Leader, Principal

+1 213.327.3730

 |  LinkedIn » Tom launched Gensler’s Hospitality practice in the late 1990s with the celebrated renovation of the Beverly...

Tom Sze

Design Director, Principal

+1 213.327.3838

 |  LinkedIn » Tom is a Studio Leader and Design Director in Gensler’s Los Angeles office. Known for his expertise in the...

Warwick Wicksman

Global Design Realization Leader, Principal

+1 213.327.3790

 |  LinkedIn » Warwick is a member of Gensler’s Management Committee and thrives on the technical aspects of Architecture. He...