Diagram decorative image


Starting with our firm’s first client, the Chicago Board of Trade, innovation has permeated our culture as we continuously strive to improve the engineering and technology of the built environment through the trust of our clients.

A History of Innovation

Innovation has different meanings based on context of use. For ESD, innovation is defined by how it improves our client’s mission or society as a whole. We believe innovation is the result of process as much as it is about the integration of engineering and technology through a consultative manner.

Throughout the years, ESD has developed innovative design solutions to improve energy efficiency, reduce lifetime costs, make people more comfortable, improve productivity, increase system reliability, and improve air quality. Some examples include:


The first high-rise in Chicago to incorporate high-voltage risers — reducing construction costs while providing electricity crucial to the business.


Protecting a library’s rare book collection through humidity, lighting, and fire suppression design.


Energy efficiency through one of the first direct digital control temperature control systems for a large-scale, mixed-use high-rise.


Air quality, comfort, and system reliability for a large-scale hospital through full-building HEPA filtration, flexible thermal zone control, and a redundant on-site power plant.


Energy efficiency and reliability for a business district through the first large-scale district cooling system.


Comfort, productivity, and flexibility for a large-scale, Class A office building through air column design, underfloor air design, and a web-enabled building automation system.


Energy efficiency and sustainability strategies leading to lower operating and maintenance costs and comfort of tenants in transitional housing


Intelligent Buildings practice leads to developing and spinning off Cohesion IB.

A History of Collaboration

End users, architects, real estate services firms, and building owners have contributed to our success through the years by engaging in collaborative relationships to develop some of the world’s most exciting places. Whether a client’s needs are based on bringing an idea to fruition, upgrading a space’s infrastructure, or looking to repurpose an icon, these relationships have contributed to each client’s success.

A History of Environmental Focus

As our firm matures, we dedicate our talent and time to improving society through the built environment and offer value to our clients and society as a whole by creating healthy and productive environments and designing facilities that are more cost effective, flexible, reliable, and sustainable.

Testimonial Quotes
Transformative thinking is in ESD’s DNA, an integral part of our over 50-year history.

Forward-looking and creative, we embrace change; we have the courage to take calculated risks and become leaders as the world evolves.

Raj P. Gupta | Executive Chairman

See What Happens When We Work Together.

Creativity, insight, partnership. Better spaces to work, to live, and to plan for the future. See how various markets are served in these projects.

Confidential Large Nationwide Technology Client
Markets: Data Centers, Hyperscale
Disciplines: Automation, Engineering
ESD Headquarters
Markets: ESD Culture, Workplace Interiors
Disciplines: Eco+Energy, Engineering, Technology
Northwestern Medicine Lake Forest Hospital
Markets: Healthcare and Life Sciences, Workplace Interiors
Disciplines: Eco+Energy, Engineering
151 North Franklin Street
Markets: High Rise Buildings
Disciplines: Cybersecurity, Eco+Energy, Engineering, Technology

News and Events: Our People and Values in Action

The various facets of our company are reflected in the thought leadership, instructional videos, podcasts, and other information offerings we post regularly. Check out the latest.

$6.5 Million Seed Funding Raised for ESD Proptech Innovation

Cohesion, a SaaS platform spun out of ESD to optimize building performance drivers for real estate owners and operators, raised funding from high-profile investors.

How Hem Gupta's Entrepreneurial Dream Began

As his career thrived with Perkins+Will, where he enjoyed larger and more important projects into the mid-1960s, Hem Gupta also wanted to branch out and be an entrepreneur...

Celebrating 50 Wonderful Years

Hem Gupta launched Environmental Systems Design, Inc. (ESD) in 1967...

Design for Tomorrow Plan for the Day After

The future isn’t distant: It starts today. Let’s solve problems together. Let’s build solutions.

Let’s Work Together. How Can We Help?

Interested in Making a Difference?

Our mission to improve society through the built environment is brought to life through our people. Are you ready to make a difference?

Join Our Team