Epsten By The Numbers

Our Team

Our missions and values center our work around building a brighter future for everyone through collaboration and sustainability. This work wouldn’t be possible without cultivating our own environment of inclusion, equity, and celebration of our diversity for our team, which is why we worked diligently to earn the first Just™ label for professional services in the Southeast United States.

Since its founding, Epsten has continued to pioneer new achievements in each field of its multidisciplinary work. This continued excellence and expansion with each year of growth is the direct result of our incredibly talented team, who continue to excel through a shared dedication to creating a brighter and more sustainable future.

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List of Firsts

  • FIRST Interior Design project designed to achieve 5 certifications – EGI HQ
  • FIRST Credit Union to achieve Fitwel certification – Georgia’s Own Credit Union
  • FIRST Petal Certified project in the Southeast – Mohawk Light Lab
  • FIRST Consulting Firm to hold the JUST Label in the Southeast
  • FIRST Parksmart project in the Southeast – Grant Park Gateway
  • FIRST WELL Performance Verification Testing Organization in the Southeast
  • FIRST LEED Gold manufacturing facility in Suzhou, China – Adidas Suzhou 2
  • FIRST LEED Certified project for the City of Atlanta, Parks and Recreation Department – MLK Recreation & Aquatic Center
  • FIRST LEED Gold project for City of Atlanta – MLK Recreation & Aquatic Center
  • FIRST LEED Gold project for Fulton County – Southeast Atlanta Library
  • FIRST Aetna project to achieve LEED – Aetna Atlanta
  • FIRST LEED Double Platinum project in the world – Former EGI HQ
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Our Accreditations

Our team is widely accredited across dozens of fields of certifications.  

  • 43 accredited employees 
  • 41 LEED accreditations 
  • 17 WELL accreditations 
  • 10 TRUE accreditations 
  • 5 Fitwel accreditations 
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In House

A consciously curated and designed office space provides our team with a healthy and comfortable place to do what they do best: change the world 

  • 107 plants in office to help with air quality control
  • 2 filtered water systems
  • 6 office certifications
  • 16 air filters
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International Projects

Our work expands far beyond borders, both linguistic and geographic.

  • Over 5,000 international projects
  • Work experience in over 55 countries
  • Sponsored foreign nationals from 5 countries around the world
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Our Staff

A wide array of specializations and professions allows our team to collaborate on a vast portfolio of varied projects.  

  • 9 in-house foreign languages
  • 60% of our employees identify as women
  • 3 registered architects
  • 3 licensed professional engineers

Our Leaders

It takes strong leadership and deep knowledge to influence global change, and that’s what we have at Epsten Group. Meet the experts behind the international demand for sustainability.

Bill D’Onofrio

Principal & Director of Operations

Bill D’Onofrio

  William “Bill” D’Onofrio, AIA, serves as a Principal and the Director of Operations for Epsten Group. Since joining the Firm in 2012, he has had a tremendous impact on our growth. Having devoted more than 20 years to a career in architecture, he has worked on numerous government, office, industrial, retail and interior projects throughout the southeast. This perspective allows him to look at the business through a unique lens, providing meaningful oversight to our projects, mentorship to our expanding employee-base, spearheading strategic growth opportunities and pinpointing valuable solutions for our clients. He embodies the Firm’s beliefs that together with our clients, we can build a healthier, more just and prosperous world through sustainable practices. Bill is an avid traveler and likes to experience different cultures, having explored almost 30 countries throughout the world. FUN FACT: Bill’s favorite building in Atlanta is the High Museum.
Darren Draper

Principal & Director of Commissioning

Darren Draper



Darren Draper has dedicated his career to the important aspect of building commissioning, even serving as an expert on the topic for many A/E/C industry-related panel discussions. He is also one of two instructors for AABC Commissioning Group’s (ACG) Commissioning Authority Certification preparation workshop. As a certified expert in the field (CxA), he oversees the Firm’s commissioning services, including M/E/P systems, building envelope, and retro-commissioning. An exercise of communication and teamwork, his dedication to his role ensures that owners and end-users obtain an excellent return on their investment, and working hand-in-hand with other Firm principals, Darren integrates commissioning early in the design phase to maximize the benefits.

FUN FACT: Darren once played in a heavy metal band and is now the rocking father of three young children.

Lauren Wallace

Principal & Director of Certifications and Consulting

Lauren Wallace

LFA, WELL AP, LEED AP, Fitwel Ambassador


Joining Epsten Group in 2009 as an Architectural Designer, Lauren is now a Principal and the Director of Certifications and Consulting. She is a leading sustainability consultant who cares about incorporating sustainable practices throughout the design-build industry. Aligning with the firm’s beliefs, Lauren’s work demonstrates that planning for the long-term can truly pay-off for a project. By working alongside her to integrate widespread sustainability practices, her clients can save time and money, and equally important, attract and retain much-needed talent. Along with her incredibly talented team, she helps uncover the possibilities.

FUN FACT: Lauren and her family are season ticket holders for the Atlanta United Major League Soccer team that won their first National Championship in 2018 at the LEED Platinum Mercedes-Benz Stadium. As a Georgia Tech alum, she finds it hard to sport the colors red and black, but her love for our local champions wins her over.

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