Priory Chapel at Saint Louis Abbey - July 2013

KAUST laboratory buildings and town mosque

HOK, formerly Hellmuth, Obata + Kassabaum and legally HOK Group, Inc., is an American design,

architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing building ...

engineering Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more speciali ...

, and

urban planning Urban planning, also known as town planning, city planning, regional planning, or rural planning, is a technical and political process that is focused on the development and design of land use and the built environment, including air, water, ...

firm, founded in 1955. As of 2018, HOK is the largest U.S.-based architecture-engineering firm and the fourth-largest interior design firm. The firm maintains more than 1,600 professional staff across a network of 24 offices, and is active in all major architectural specialties.

History

Founding

HOK was established in

St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...

Missouri Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas t ...

, in 1955. The firm's name is derived from the surnames of its three founding partners: George F. Hellmuth,

Gyo Obata Gyo Obata (小圃暁, February 28, 1923 – March 8, 2022) was an American architect, the son of painter Chiura Obata and his wife, Haruko Obata, a floral designer. In 1955, he co-founded the global architectural firm HOK (formerly Hellmuth, O ...

and George Kassabaum, all graduates of the School of Architecture at

Washington University in St. Louis Washington University in St. Louis (WashU or WUSTL) is a private research university with its main campus in St. Louis County, and Clayton, Missouri. Founded in 1853, the university is named after George Washington. Washington University is r ...

. The design firm started with 26 employees and its three founders. The practice's first building designs were schools in St. Louis suburbs, and St. Thomas Aquinas High School in Florissant was the first private/parochial school designed by the firm. Another prominent school they designed was the Saint Louis Priory School.

Early years

By the mid-1960s, the firm was winning commissions across the United States and began to open additional offices, starting with San Francisco in 1966 for the design of a library at Stanford University and Dallas in 1968 for the master planning and design of

Dallas/Fort Worth International Airport Dallas/Fort Worth International Airport , also known as DFW Airport, is the primary international airport serving the Dallas–Fort Worth metroplex and the North Texas Region in the U.S. state of Texas. It is the largest hub for American Ai ...

. Also in 1968, HOK launched its interior design practice. HOK also expanded into

Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...

, after winning the commission to design the

Smithsonian National Air and Space Museum The National Air and Space Museum of the Smithsonian Institution, also called the Air and Space Museum, is a museum in Washington, D.C., in the United States. Established in 1946 as the National Air Museum, it opened its main building on the Na ...

. In 1973, HOK established a presence in New York by acquiring Kahn & Jacobs, designers of many New York City skyscrapers. By the 1970s, the firm was operating internationally and in 1975 the firm was named as architect of the $3.5 billion

King Saud University King Saud University (KSU, ar, جامعة الملك سعود) is a public university in Riyadh, Saudi Arabia. Established in 1957 by King Saud bin Abdulaziz to address the country's skilled worker shortage, it is the first university in the K ...

Riyadh Riyadh (, ar, الرياض, 'ar-Riyāḍ, lit.: 'The Gardens' Najdi pronunciation: ), formerly known as Hajr al-Yamamah, is the capital and largest city of Saudi Arabia. It is also the capital of the Riyadh Province and the centre of th ...

, at the time the single largest building project in the world. In 1979, George Kassabaum was elected into the

National Academy of Design The National Academy of Design is an honorary association of American artists, founded in New York City in 1825 by Samuel Morse, Asher Durand, Thomas Cole, Martin E. Thompson, Charles Cushing Wright, Ithiel Town, and others "to promote the f ...

as an Associate Academician. In 1983, HOK formed HOK Sport Venue Event, a subsidiary devoted entirely to designing sport stadiums, arenas, and convention centers, an architectural boom market at the time. In January 2009, the Board of HOK Group, Inc. and managers of HOK Sports Facilities, LLC transferred ownership of HOK Sport to leaders of that practice. The company became an independent firm, and rebranded itself as Populous.

Expansion and acquisitions

HOK's first office outside the US opened in Hong Kong in 1984, and the second in London in 1987, a practice that would be expanded in 1995 by merging with the British architectural practice Cecil Denny Highton. As of April 2021, HOK operates offices in seven different countries including the US, China, India, and Canada, where it established its first offices in 1997 with the acquisition of Urbana Architects. The firm expanded into China in 2013, when it acquired the New York and

Shanghai Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowin ...

offices of hospitality design firm BBG-BBGM, creating one of the world's largest interior design firms, although BBG-BBGM's office in Washington, D.C. continues to operate as BBGM. By 2007, international work represented more than 40% of HOK's annual revenue. Other domestic acquisitions include Caudill Rowlett Scott based in Houston, Texas, in November 1994, adding offices in Houston and Atlanta, and

360 Architecture 360 Architecture was an American architectural practice acquired by HOK in 2015. The firm provided services for a range of project types including corporate headquarters and commercial office buildings, sports arenas, stadiums and ballparks, mun ...

in January 2015, a 200-person, Kansas City-based firm specializing in the design of stadiums, ballparks, arenas, recreation and wellness centers, and mixed-use entertainment districts. The acquisition enabled HOK to launch a new global Sports, Recreation, and Entertainment design practice after the breakaway of Populous, and to open new offices in Kansas City and Columbus, Ohio. This return to the firm's tradition of stadium architecture was buoyed on May 15, 2015, when the firm announced a multi-year partnership with the

United Soccer League United Soccer League (USL), formerly known as United Soccer Leagues, is a soccer league in the United States and Canada. It organizes several men's and women's leagues, both professional and amateur. Men's leagues currently organized are the ...

(USL) in the US to lead a stadium development, design and standards initiative to help house all USL clubs in soccer-specific stadiums across North America by the end of the decade.

Leadership

In 2004, George Hellmuth's nephew, Bill Hellmuth, was named president of the firm. In 2012, HOK Chairman

Bill Valentine William Terry Valentine, Jr. (November 21, 1932 – April 26, 2015) was a professional baseball umpire who worked in the American League from 1963 to 1968. Valentine was an umpire in the 1965 Major League Baseball All-Star Game. In his career, he ...

retired after 50 years with the firm and was replaced by HOK

Chief Executive Officer A chief executive officer (CEO), also known as a central executive officer (CEO), chief administrator officer (CAO) or just chief executive (CE), is one of a number of corporate executives charged with the management of an organization especial ...

Patrick MacLeamy, FAIA. In January 2016, HOK announced that Bill Hellmuth would succeed Patrick MacLeamy as CEO, effective April 19, 2016, and he would later also assume the role of chairman when it was announced that Carl Galioto had been appointed president in April 2017.

Innovation and sustainable design

In 1983, HOK introduced HOK Draw, computer-aided drafting software products that specialized in conceptual architectural design. In the early 2000s, HOK began using Building Information Modeling (BIM) to streamline the design and construction process. In 2012, Building Design + Construction ranked HOK the No. 1 BIM Architecture Firm. In 2013, ''DesignIntelligence'' magazine, based in part on the firm's leadership in

buildingSMART buildingSMART, formerly the International Alliance for Interoperability (IAI), is an international organisation which aims to improve the exchange of information between software applications used in the construction industry. It has developed Indu ...

and BIM, ranked HOK the No. 1 Design Firm for Technology Expertise. HOK is generally regarded as one of the leading architectural companies in the area of sustainable design. Professionals in the firm authored one of the industry's most respected resources on the topic, "The HOK Guidebook to Sustainable Design," originally published in 2000 by

John Wiley & Sons John Wiley & Sons, Inc., commonly known as Wiley (), is an American multinational publishing company founded in 1807 that focuses on academic publishing and instructional materials. The company produces books, journals, and encyclopedias, ...

. A second edition of the book was published in 2005. In September 2008, to better integrate nature's innovations into the design of buildings, communities and cities worldwide, HOK announced an alliance with the Biomimicry Group, co-founded by Janine Benyus. In 2010, HOK and energy and daylighting consultant The Weidt Group completed design of Net Zero Court, a 170,735-square-foot, market-rate, zero-emissions class A commercial office building in St. Louis. In 2013, HOK and Biomimicry 3.8 released the Genius of Biome report, a textbook for how to apply biomimicry design principles, and a year later in 2014, ORO Editions published “HOK Tall Buildings,” a 300-page book exploring the design of the contemporary high-rise. In 2015, for the sixth consecutive year, the ''DesignIntelligence'' journal ranked HOK as a leader in sustainable and high-performance design. HOK currently has more than 750 LEED,

BREEAM BREEAM (Building Research Establishment Environmental Assessment Method), first published by the Building Research Establishment (BRE) in 1990, is the world's longest established method of assessing, rating, and certifying the sustainability of ...

and WELL credentialed professionals and more than 300 green certified projects under various rating systems worldwide.

Global offices

United States: Atlanta; Chicago; Columbus, OH; Dallas; Houston; Kansas City; Los Angeles; New York; Philadelphia; St. Louis; San Francisco; Seattle; Summit, NJ; Tampa, FL; Washington, D.C. Canada: Calgary, Ottawa, Toronto Asia Pacific: Beijing, Hong Kong, Shanghai Europe: London. Also leads European Architects Network (EAN) - affiliated firms in Amsterdam, Brussels, Madrid, Milan, Paris and Rome India: Mumbai Middle East: Dubai

Selected projects

* 1962: The Priory Chapel,

, Missouri, United States * 1970: Houston Galleria, Houston, Texas, United States * 1970:

Xerox PARC PARC (Palo Alto Research Center; formerly Xerox PARC) is a research and development company in Palo Alto, California. Founded in 1969 by Jacob E. "Jack" Goldman, chief scientist of Xerox Corporation, the company was originally a division of Xero ...

Palo Alto, California Palo Alto (; Spanish for "tall stick") is a charter city in the northwestern corner of Santa Clara County, California, United States, in the San Francisco Bay Area, named after a coastal redwood tree known as El Palo Alto. The city was es ...

, United States * 1975:

, Saudi Arabia * 1976: National Air and Space Museum, Washington, D.C., United States * 1979: Cecil H. Green Library, Stanford University,

Stanford, California Stanford is a census-designated place (CDP) in the northwest corner of Santa Clara County, California, United States. It is the home of Stanford University. The population was 21,150 at the 2020 census. Stanford is an unincorporated area of ...

, United States * 1981:

Moscone Center The George R. Moscone Convention Center (pronounced ), popularly known as the Moscone Center, is the largest convention and exhibition complex in San Francisco, California. The complex consists of three main halls spread out across three block ...

San Francisco, California San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...

, United States * 1981: Metropolitan Square, St. Louis, Missouri, United States – Current location of HOK St. Louis office * 1982:

Levi's Plaza Levi Strauss Plaza, also known as Levi Plaza or Levi's Plaza, is an office complex located in North Beach/ Telegraph Hill along The Embarcadero in San Francisco, California.Ginsberg, Steve. "Levi Strauss inks $300M headquarters deal." ''San Fran ...

, San Francisco, California, United States * 1983:

King Khaled International Airport King Khalid International Airport ( ar, مطار الملك خالد الدولي ', ) is located north of Riyadh, Saudi Arabia, designed by the architectural firm HOK, and Arabian Bechtel Company Limited served as the construction manager o ...

, Saudi Arabia * 1985: St. Louis Union Station Renovation and Redevelopment, St. Louis, Missouri, United States * 1986: BP Building Cleveland, Ohio, United States * 1986: Kellogg Company Headquarters Battle Creek, Michigan, United States * 1986: Riverchase Galleria

Birmingham, Alabama Birmingham ( ) is a city in the north central region of the U.S. state of Alabama. Birmingham is the seat of Jefferson County, Alabama's most populous county. As of the 2021 census estimates, Birmingham had a population of 197,575, down 1% fr ...

, United States * 1991: 801 Grand,

Des Moines, Iowa Des Moines () is the capital and the most populous city in the U.S. state of Iowa. It is also the county seat of Polk County. A small part of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines, ...

, United States (tallest building in Iowa) * 1992: Schapiro Center for Engineering and Physical Science Research (CEPSR),

Columbia University Columbia University (also known as Columbia, and officially as Columbia University in the City of New York) is a private research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhatt ...

, New York City, United States * 1993:

Apple Inc. Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company ...

R&D Campus,

Cupertino, California Cupertino ( ) is a city in Santa Clara County, California, United States, directly west of San Jose on the western edge of the Santa Clara Valley with portions extending into the foothills of the Santa Cruz Mountains. The population was 57,82 ...

, United States * 1994:

Independence Temple The Temple in Independence, Missouri, is a house of worship and education "dedicated to the pursuit of peace". It dominates the skyline of Independence and has become the focal point of the headquarters of the Community of Christ (formerly the Re ...

Independence, Missouri Independence is the fifth-largest city in Missouri and the county seat of Jackson County. Independence is a satellite city of Kansas City, Missouri, and is the largest suburb on the Missouri side of the Kansas City metropolitan area. In 2020, ...

, United States * 1995: Tokyo Telecom Center, Tokyo, Japan (co-designers) * 1996: Tuntex Sky Tower, Kaohsiung, Taiwan * 1996–1997: Nortel Brampton Centre HQ,

Brampton, Ontario Brampton ( or ) is a city in the Canadian province of Ontario. Brampton is a city in the Greater Toronto Area (GTA) and is a lower-tier municipality within Peel Region. The city has a population of 656,480 as of the 2021 Census, making it th ...

, Canada * 1997: Foreign and Commonwealth Office Restoration, London, England * 1997: George Bush Presidential Library,

College Station, Texas College Station is a city in Brazos County, Texas, Brazos County, Texas, situated in East-Central Texas in the heart of the Brazos Valley, towards the eastern edge of the region known as the Texas Triangle. It is northwest of Houston and east-n ...

, United States (on the campus of

Texas A&M University Texas A&M University (Texas A&M, A&M, or TAMU) is a public, land-grant, research university in College Station, Texas. It was founded in 1876 and became the flagship institution of the Texas A&M University System in 1948. As of late 2021, T ...

) * 1999:

Northwestern Memorial Hospital Northwestern Memorial Hospital (NMH) is a nationally ranked academic medical center located on Northwestern University’s Chicago campus in Streeterville, Chicago, Illinois. It is the flagship campus for Northwestern Medicine and the primary ...

Facility Replacement and Redevelopment,

Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...

, United States (co-designers) * 1999: Edificio Malecon Office Tower,

Buenos Aires Buenos Aires ( or ; ), officially the Autonomous City of Buenos Aires ( es, link=no, Ciudad Autónoma de Buenos Aires), is the capital and primate city of Argentina. The city is located on the western shore of the Río de la Plata, on South ...

, Argentina * 1999: Boeing Leadership Center,

, Missouri, United States * 1999:

American Airlines Arena FTX Arena (known as American Airlines Arena from 1999 to 2021) is a multi-purpose arena located in Miami, Florida, along Biscayne Bay. It was constructed beginning in 1998 as a replacement for the Miami Arena and designed by the architecture f ...

(home of NBA

Miami Heat The Miami Heat are an American professional basketball team based in Miami. The Heat compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Southeast Division. The club plays its home games at FT ...

Miami Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a coastal metropolis and the county seat of Miami-Dade County in South Florida, United States. With a population of 442,241 at ...

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

, United States * 2000: Passenger Terminal Amsterdam,

Amsterdam Amsterdam ( , , , lit. ''The Dam on the River Amstel'') is the capital and most populous city of the Netherlands, with The Hague being the seat of government. It has a population of 907,976 within the city proper, 1,558,755 in the urban ar ...

, The Netherlands * 2000:

Nationwide Arena Nationwide Arena is a multi-purpose arena in Columbus, Ohio, United States. Since completion in 2000, the arena has served as the home of the Columbus Blue Jackets of the National Hockey League (NHL). It is one of two facilities in Columbus, alon ...

(home of NHL

Columbus Blue Jackets The Columbus Blue Jackets (often simply referred to as the Jackets) are a professional ice hockey team based in Columbus, Ohio. They compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference ...

), Columbus, Ohio, United States * 2001:

United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it ...

Research Center, Research Triangle Park, North Carolina, United States (1.2 million-sq.-ft. campus) * 2002: Darwin Centre at the

Natural History Museum A natural history museum or museum of natural history is a scientific institution with natural history collections that include current and historical records of animals, plants, fungi, ecosystems, geology, paleontology, climatology, and more. ...

, Passenger Terminal Cork, Cork Airport, Ireland * 2002: Alfred A. Arraj U.S. Courthouse,

Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...

, Colorado, United States * 2003:

Steven F. Udvar-Hazy Center The Steven F. Udvar-Hazy Center, also called the Udvar-Hazy Center, is the Smithsonian National Air and Space Museum (NASM)'s annex at Washington Dulles International Airport in the Chantilly area of Fairfax County, Virginia. It holds numerous ...

of the National Air and Space Museum,

Chantilly, Virginia Chantilly is a census-designated place (CDP) in western Fairfax County, Virginia, Fairfax County, Virginia. The population was 24,301 as of the 2020 census. Chantilly is named after an early-19th-century mansion and farm, which in turn took the ...

, United States * 2004:

Harlem Hospital Center Harlem Hospital Center, branded as NYC Health + Hospitals/Harlem, is a 272-bed, public teaching hospital affiliated with Columbia University. It is located at 506 Lenox Avenue in Harlem, Manhattan, New York City and was founded in 1887. The hosp ...

Master Plan and Patient Pavilion, New York City, United States * 2005:

Cisco Systems Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, ...

Executive Briefing Center Interior Design, San Jose, California, United States * 2005: Terminal A at

Logan International Airport General Edward Lawrence Logan International Airport , also known as Boston Logan International Airport and commonly as Boston Logan, Logan Airport or simply Logan, is an international airport that is located mostly in East Boston and partial ...

, Boston, Massachusetts, United States (world's first LEED certified air terminal building) * 2005:

Stockton Arena Stockton Arena is an indoor arena in Stockton, California. It opened in December 2005 and seats a maximum of 12,000 fans. It is the home venue of the Stockton Kings of the NBA G League. Former tenants include the Stockton Heat of the American H ...

(home of

ECHL The ECHL (formerly the East Coast Hockey League) is a mid-level professional ice hockey league based in Shrewsbury, New Jersey, with teams scattered across the United States and Canada. It is a tier below the American Hockey League (AHL). The ...

Stockton Thunder The Stockton Thunder were a minor league professional ice hockey team that was based in Stockton, California, and a member of the ECHL. The Stockton Arena was their home ice, with a capacity of 9,737. The team was an affiliate team of the New Yo ...

), Stockton, California, United States * 2006: Lavasa Hill Station Master Plan and Design Guidelines, Moss Valley,

Pune Pune (; ; also known as Poona, ( the official name from 1818 until 1978) is one of the most important industrial and educational hubs of India, with an estimated population of 7.4 million As of 2021, Pune Metropolitan Region is the largest i ...

, India * 2006: Natural History Museum of the Adirondacks (The Wild Center), Tupper Lake, New York, United States * 2006: SJ Berwin European Headquarters Interior Design, London, England, (Business Week/Architectural Record Award winner) * 2007:

Dubai Marina Dubai Marina ( ar, مرسى دبي), aka Marsa Dubai, is a district in Dubai, United Arab Emirates. It is an artificial canal city, built along a stretch of Persian Gulf shoreline. As of 2018, it has a population of 55,052. When the entire develo ...

Dubai Dubai (, ; ar, دبي, translit=Dubayy, , ) is the most populous city in the United Arab Emirates (UAE) and the capital of the Emirate of Dubai, the most populated of the 7 emirates of the United Arab Emirates.The Government and Politics of ...

, United Arab Emirates * 2007: Hyatt on

the Bund The Bund or Waitan (, Shanghainese romanization: ''Nga3thae1'', , ) is a waterfront area and a protected historical district in central Shanghai. The area centers on a section of Zhongshan Road (East Zhongshan Road No.1) within the former Shan ...

, Shanghai, China * 2007:

Sprint Center T-Mobile Center (formerly Sprint Center) is a multi-purpose arena in downtown Kansas City, Missouri. It is located at the intersection of 14th Street and Grand Boulevard on the east side of the Power & Light District. It has effectively become ...

, Kansas City, Missouri, United States * 2008: Frost Art Museum, Florida International University, Miami, Miami, Florida, United States * 2008: Midfield Terminal at the Indianapolis International Airport, Indianapolis, Indianapolis, Indiana, United States (master designer) * 2008: Kansas City Power & Light District, Kansas City, Missouri, United States * 2009: Doha City Centre, Doha, Qatar, (design of five hotel towers for largest retail development in the Middle East) * 2009: King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia (Saudi Arabia's first LEED certified project and the world's largest LEED Platinum project) * 2009: Carnival House, head office of Carnival UK, Southampton, England * 2009: Bakrie Tower, Jakarta, Indonesia * 2009: Huntington Park (Columbus, Ohio), Huntington Park (home of Triple-A (baseball), Triple-A Minor League Baseball, MiLB Columbus Clippers), Columbus, Ohio, United States * 2010: Indira Gandhi International Airport#Terminal 3, Indira Gandhi International Airport – Terminal 3, Delhi, India (LEED Gold certification) * 2010: New Building 20 at NASA's Lyndon B. Johnson Space Center, Houston, Texas, (LEED Platinum certification) * 2010: MetLife Stadium (home of National Football League, NFL New York Giants and National Football League, NFL New York Jets), East Rutherford, New Jersey, United States * 2011: Salvador Dalí Museum, St. Petersburg, Florida * 2011: Brigade Gateway Enclave, Bangalore, Bengaluru, India * 2011: Keangnam Hanoi Landmark Tower, Hanoi, Vietnam (tallest building in Vietnam) * 2012: Canon USA Headquarters, Melville, New York * 2012: Baku Flame Towers, Baku, Azerbaijan * 2012:

Mural Pavilion, New York City * 2013: San Francisco Mint Adaptive Reuse, San Francisco, California * 2013: BBC Broadcasting House Headquarters Workplace Strategy and Interior Design, London, England * 2013: Husky Stadium (home of Washington Huskies football, University of Washington football), Seattle, Washington (state), Washington, United States * 2013: Auburn University Recreation & Wellness Center, Auburn, Alabama, United States * 2014: 535 Mission Street, San Francisco, California, United States * 2014: Anaheim Regional Transportation Intermodal Center, Anaheim, California, United States * 2014: National Oceanic and Atmospheric Administration Inouye Regional Center, Pearl Harbor, Hawaii, United States * 2014: Hamad International Airport Passenger Terminal Complex, Doha, Qatar * 2015: PayPal Park (home of Major League Soccer, MLS San Jose Earthquakes), San Jose, California, United States * 2015: Porsche U.S. Headquarters and Customer Experience Center, Atlanta, Atlanta, Georgia * 2015: University of Chicago William Eckhardt Research Center,

Chicago, Illinois (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...

* 2016: Abu Dhabi National Oil Company Headquarters, Abu Dhabi, United Arab Emirates * 2016: Rogers Place (home of NHL Edmonton Oilers), Edmonton, Alberta, Canada * 2016: Perot Tower, Mixed Use, Dallas, Texas * 2016: St Bartholomew's Hospital Redevelopment and King George V Building, London, London, England * 2017: University at Buffalo School of Medicine and Biomedical Sciences, Buffalo, New York, Buffalo, New York * 2017: Capital Market Authority (Saudi Arabia), Capital Market Authority Tower,

, Saudi Arabia * 2017: Mercedes-Benz Stadium (home of the National Football League, NFL's Atlanta Falcons and Major League Soccer, MLS Atlanta United FC) Atlanta, Georgia (U.S. state), Georgia, United States * 2017: Little Caesars Arena (home of NHL's Detroit Red Wings and NBA's Detroit Pistons), Detroit, Michigan, United States * 2018: Hartsfield–Jackson Atlanta International Airport Passenger Terminal Modernization, Atlanta * 2018: LaGuardia Airport Central Terminal B, Queens, Queens, New York (Phase 1) * 2018: Central and Wolfe Campus, Sunnyvale, California, United States * 2018: Kentucky International Convention Center Redevelopment, Louisville, Kentucky, United States * 2018: LG Electronics, LG Science Park, Seoul, South Korea * 2019: FC Barcelona New Palau Blaugrana Arena, Barcelona, Spain * 2019: Las Vegas Ballpark (home of Pacific Coast League Las Vegas Aviators), Summerlin, Nevada, United States * 2020: World Trade Center Chennai, World Trade Center Towers, Chennai, India * 2020: Lynn Family Stadium (home of the USL Championship's Louisville City FC and the National Women's Soccer League, NWSL's Racing Louisville FC), Louisville, Kentucky, United States * 2020: Spire London Skyscraper, London, England * 2021: UPMC Vision and Rehabilitation Hospital at UPMC Mercy, Pittsburgh, Pennsylvania, United States

References

External links

Official website
{{DEFAULTSORT:Hellmuth, Obata And Kassabaum HOK (firm) buildings, 1955 establishments in Missouri Architecture firms based in Missouri Companies based in St. Louis Design companies established in 1955