Founded in 1983 by Gary Keller and Joe Williams, it grew from a single office in Austin to approximately 940+ offices with over 180,000 associates worldwide as of May 2018. It is an Inc. 5000 company and has been recognized as one of the highest rated real estate companies by numerous publications, including Entrepreneur and Forbes. In 2018, it was listed as one of the "happiest companies to work for" by Career Bliss. Keller Williams topped Fast Company’s list of the World’s Most Innovative Companies in the real estate and urban development category for 2019.

Keller Williams was founded in 1983 by Gary Keller and Joe Williams. It started out as a single office based in Austin, Texas, selling local residential real estate in the Austin area. After two years in business, Keller Williams became the largest single office residential real estate firm in Austin with 72 licensed agents. In the mid-1980s, the company suffered from the United States housing bubble and began to offer profit sharing to existing and potential associates in order to retain agents and help get through the recession. Within a year, the company grew to 130 agents and began to climb back as the top real estate broker in Austin.

Keller Williams has received numerous awards since its inception. In addition to being an Inc. 5000 company, it has been recognized by Inc. as a Top 100 Real Estate Company, placed on the magazine's honor role as a five-time Inc. 5000 Honoree, and receiving an Inc. Hire Power Award. Further recognition has come from Entrepreneur where it has been featured in the magazine's Best of the Best franchise list as well as inclusion in their Franchise 500 rankings. The company was recognized as the number one training company by Training Magazine in 2017; and, inducted into the publication's Training Hall of Fame in 2018. In 2018, it was listed as one of the "happiest companies to work for" by Career Bliss as reported by Forbes.

According to wikipedia