HKS, Inc. is an American international architecture firm headquartered in Dallas, Texas (USA). The firm was founded in 1939 by Harwood K. Smith.

As one of the world's largest architectural firms, HKS has designed sports and entertainment, healthcare, hospitality, industrial, and corporate buildings in the US and overseas. The company offers structural engineering, architecture, project management, and interior and graphic design services. It provides planning and development, programming, branding, research, and advisory services.

In 2011 HKS saw rapid expansion. In October HKS released an announcement it had acquired the interior design firm Maregatti Interiors LLC in Indianapolis. The HKS Science & Technology Practice was formed after the firm acquired Earl Walls Studios in San Diego, California. HKS also opened new locations in Chicago, Denver, New York, and New Delhi, India.

As of 2015, the firm employs more than 1000 people, making it one of the largest architectural firms in the United States and has completed services on structures valued in excess of $69 billion, with more than $12 billion of construction currently underway.

Some of the firm's work includes SoFi Stadium, AT&T Stadium, FAU Stadium, Globe Life Field, Benefield Building, Lopesan Costa Bavaro Resort and Village, Cambodia's First Speedway - Laumes International Motor Racing Circuit, and Biolab Research Facilities in Singapore, etc.

According to wikipedia