NELSON was founded as an Interior Design firm above a Philadelphia pizza shop in 1977.

Today, our Philadelphia office is located at "The NELSON Building" in the heart of historic Society Hill.

Surrounded by symbols of America’s heritage, including Independence Hall, the Liberty Bell and the National Constitution Center, NELSON Philadelphia provides architecture, design, planning and workplace services for a broad spectrum of clients while also services  as the centralized base for NELSON’s corporate operations.

In 2012, a significant portion of the H2L2 academic and architecture practices joined NELSON.

Recent local projects include the ongoing improvements at Lincoln Field, home of the Philadelphia Eagles, and national account planning, workplace services and design support for clients such as TD Bank, Citi and Duane Morris.

In February 2013 Teammates from Space Design Incorporated transitioned to NELSON further strengthening our local interior design services and expanding our space measurement and management capabilities.


Contact Information

Angel DeElse
The NELSON Building
222-230 Walnut Street
Philadelphia, PA 19106
United States

NELSON Insights

CREATING New Solutions

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Tactix retained NELSON to provide interior design services for their new location in Center City Philadelphia. The team worked closely with executives to develop new design solutions to fit their needs.



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Fieldglass commissioned NELSON to redesign space with a focus on the creation of a more collaborative work environment allowing for a more efficient workflow.

Fieldglass Inc

CREATING innovative design

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Capital One selected NELSON to help them design their Rolling Meadows location. The NELSON team worked with Capital One’s Design Team and Key Leaders to create their vision of an urban chic work environment.



Creating NEw Opportunities

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Effective November 1, 2016, AAI Design has merged operations with NELSON. The fourth merger on the west coast for NELSON, this deal brings the regional count to over 80 and brings the total number of west coast offices to five.



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NELSON announced its intent to launch TAMI (Technology, Advertising & Media, and Information Business) Practice Area. 


FOCUSING on music and design

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Looking for a fresh new concept that not only captured elements of the music industry but also the city of Minneapolis, Pandora Internet Radio turned to NELSON to provide interior design services for the renovation of their existing office in the IDS Tower.


creating design that "takes off" 

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Gogo commissioned NELSON to create a final workplace solution that would allow for aggressive growth and flexibility while considering new ways of working in a collaborative space.




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NELSON and Veenendaal Cave, Inc. Officially Join Operations, establish the Southeastearn USA as a “Super Region”.


NELSON and Veenendaal Cave, Inc. Join Operations