1,600 people in 24 cities living 4 values for 1 goal:
To use design to help our clients succeed.

We create exceptional environments that meet our clients' most complex design challenges.

We inspire people through our work by expressing timeless cultural, organizational and personal values.

We connect people and place with ideas that come from many minds and imaginations.

We care about serving our clients, enriching lives, improving communities and protecting our natural environment through design.

We are a global architecture, design, engineering and planning firm.

60+ Years of Design + Innovation

Sustainable Firsts and Accolades


Mercedes-Benz Stadium becomes North America’s first LEED Platinum professional sports stadium.

HOK is the first design firm to sign a partnership agreement with BREEAM USA for the use of the BREEAM In-Use standard across the U.S.

HOK earns its ninth and tenth AIA COTE Top Ten Green Project awards for the design of NOAA’s Daniel K. Inouye Regional Center in Honolulu and Ng Teng Fong General Hospital & Jurong Community Hospital in Singapore.

HOK becomes the first design, architecture and engineering firm to join the Well Living Lab Alliance sponsored by Delos and Mayo Clinic.



HOK announces a partnership with Delos to accelerate the integration of health and wellness into the built environment.

The HOK-designed renovation of TD Bank’s Toronto office achieves WELL Gold Certification. It’s the first interiors project in Canada to achieve WELL Certification.

HOK partners with the American Institute of Architects’ Design and Health Research Consortium, which works to advance university-led research related to design and health.

HOK announces a partnership with IFC, a member of the World Bank Group, to use the EDGE green building software and certification system. The Exchange in Accra, Ghana, becomes HOK’s first EDGE-certified project.

The Anaheim Regional Transportation Intermodal Center achieves LEED-NC Platinum certification.


DesignIntelligence names HOK a leader in sustainable, high-performance design for the sixth consecutive year.

HOK announces a partnership with the Green Sports Alliance.

The 27-story 535 Mission Street becomes San Francisco’s first LEED Core and Shell Platinum office tower.

The Starwood Hotels and Resorts Worldwide Headquarters and the American Express Centurion Lounge achieve LEED-CI Platinum certification.

The Ng Teng Fong General Hospital is rated Platinum under Singapore’s Green Mark program. 

The 1.3-million-sq.-ft. Eskenazi Health campus in Indianapolis is certified as one of the world’s largest LEED Gold healthcare campuses.

The 1.1 million-sq.-ft. James Cancer Center and Solove Research Institute at The Ohio State University is awarded LEED Gold certification.

NOAA’s Inouye Regional Center, the Iowa State Penitentiary, the Kempegowda International Airport, Bengaluru Terminal 1 Expansion and the Richmond Justice Center earn LEED-NC Gold certification.

The University of Washington’s Husky Stadium wins the inaugural Sustainability Award from the National Association of Collegiate Directors of Athletics (NACDA) and the USG Corporation.

NOAA’S Inouye Regional Center earned LEED Gold certification


DesignIntelligence names HOK a top sustainable role model for the fifth consecutive year.

HOK has 200+ LEED, BREEAM, Green Mark and Green Globe certified projects.


HOK and Biomimicry 3.8 publish the groundbreaking Genius of Biome report.

The Change Initiative is the highest-scoring LEED-CI Platinum project in the world.

Healthcare Sustainable Design Leader Mara Baum is named HOK’s first LEED Fellow.

DesignIntelligence names HOK a top sustainable role model for the fourth consecutive year.

The Change Initiative
The Change Initiative achieves the world’s highest LEED-CI Platinum score in 2013


HOK is named #1 sustainable role model by DesignIntelligence for the third consecutive year.

HOK has 120+ LEED, BREEAM and Green Mark certified projects and 900+ certified sustainability professionals.

HOK is named among the top firms in Engineering News-Record’s Top 100 Green Design Firms list.

KAPSARC residential community is the first project outside of North America and the largest residential project to achieve LEED for Homes certification.

Accident Fund Headquarters wins an Honor Award – First Place for a Historic Reuse in National Institute of Building Sciences Sustainable Buildings Industry Council (SBIC) Beyond Green High Performance Building Awards.


HOK is named #1 sustainable role model by DesignIntelligence for the second consecutive year.

Wellmark’s Headquarters is certified the largest LEED Platinum single occupancy office building.

HOK begins working as USGBC’s design partner for Project Haiti, a replacement orphanage and children’s center in Port-au-Prince.

HOK/Vanderweil team wins Metropolis Next Generation Design Competition with Process Zero.


HOK and the Biomimicry Group (now Biomimicry 3.8) introduce a Fully Integrated Thinking™ (FIT) tool that uses a triple bottom line methodology and provides clients with business-focused measures.

KAUST is named HOK’s eighth AIA Committee on the Environment Top Ten Green Project.

HOK and The Weidt Group design Net Zero Court, a net zero emissions, Class A commercial office building prototype

HOK’s new Sustainable Roadmap establishes clear sustainable goals, actions and measures for all aspects of the firm’s business, including design, services, people and practices.

HOK’s London office earns the UK’s first LEED-CI Gold certification.

HOK’s Chicago office earns LEED-CI Platinum rating in 2009


HOK’s Chicago office becomes firm’s first LEED-CI Platinum space.

Autodesk One Marketplace in San Francisco is HOK’s first LEED Platinum project.

King Abdullah University of Science and Technology becomes the world’s largest LEED Platinum project.

HOK adopts a firm-wide Sustainable Operations Plan.


HOK enters into an alliance with Janine Benyus and the Biomimicry Group to discover how to bring life’s principles – the natural patterns and processes that have formed over billions of years – into our design solutions.

HOK ranks as the #1 design firm in Engineering News-Record’s inaugural ranking of the practices engaged in the most green projects.

Nationals Park in Washington, DC, is the first Major League Baseball stadium to earn LEED certification.


HOK receives the U.S. Green Building Council Organizational Excellence Award and the CoreNet Global / American Institute of Architects / International Interior Design Association Sustainable Design Leadership Award.

Santa Clarita Transit Maintenance Facility is the first commercial use of straw-bale wall.

HOK Wrote the Guidebook to Sustainable Design in 1999, with 2nd Publishing in 2005


Wiley publishes the second edition of The HOK Guidebook to Sustainable Design.

The Sustainable Buildings Industry Council (SBIC) recognizes HOK with the Best Sustainable Practice Award, Educational Initiative award for authoring The HOK Guidebook to Sustainable Design, second edition.


San Francisco is HOK’s first LEED-CI office.


HOK becomes first architecture firm with 100 LEED accredited professionals.


HOK earns Global Green USA’s Designing a Sustainable and Secure World Award.


HOK’s first LEED-certified project is the Nidus Center for Scientific Enterprise in St. Louis, Mo.


Wiley publishes The HOK Guidebook to Sustainable Design.


HOK earns its first AIA COTE Top Ten Green Project award for the design of JohnsonDiversey’s 250,000-sq.-ft headquarters in Racine, Wisconsin.


HOK’s leaders officially adopt sustainability as a core value of the firm.