Kelly Hagarty ESG Director Jeff Marshall Client Solutions Director


Consultant Premier

Stok is reimagining the built environment. Founded in 2008, Stok provides sustainability consulting, energy and performance engineering, and real estate and workplace solutions. The firm works across sectors to balance financial performance with environmental goals, resulting in high-performance buildings and exceptional human environments.

Leveraging interdisciplinary expertise and knowledge from involvement on 1000+ projects, Stok provides clients with strategy, management, and technical support through all phases of the real estate lifecycle—all under one roof. Stok serves 5 of the Forbes top 10 Most Valuable Brands, is a Certified B Corp, and is an ILFI JUST organization. The firm services projects worldwide from offices in San Francisco, San Diego, and Denver.

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Core to Stok’s unique approach is the firm’s ability to help organizations establish aspirational ESG goals and deliver the deep technical expertise needed to make improvements across their operations, from portfolio to asset levels alike. These solutions include:

  • Carbon & Energy Management
  • ESG Strategy & Program Management
  • Green & Healthy Building Certifications
  • MEP Commissioning & Optimization
  • Integrated Project Delivery
  • Sustainable Real Estate Strategy


To learn about key factors for success and steps for how to optimize a sustainable real estate program, download Stok’s Sustainable Real Estate Program Handbook. For more information on ESG, watch this video and read Stok’s guide to interpreting and improving your GRESB score.


To learn more, visit and follow Stok on LinkedIn.



Insights written by Stok:

  • Articles

    Operationalizing net zero: Key recommendations

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  • Articles

    Upleveling your ESG program with the GRESB Benchmark Report

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  • Articles

    ESG foundations: Data quality in commercial real estate

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