Swift Transportation is a Phoenix, Arizona-based American truckload motor shipping carrier, part of Knight-Swift.

After their son, Jerry, graduated from Weber State University in 1966, they moved the small company to Phoenix, Arizona.

Carl and his two sons, Ronald and Jerry (vice-president), formed the company Common Market in Arizona, that would become Swift.

The three Moyes family members and a fourth partner, Randy Knight, grew the business to $25 million in annual revenues by 1984.

[7] In April 1988 Swift purchased Greenville, South Carolina-based Cooper Motor Lines from Philadelphia, Pennsylvania-based ARA Services.

[9][5] In 1991, with money raised in the IPO, Swift bought Stephens City, Virginia-based Arthur H. Fulton Inc. for $9 million out of Chapter 11 bankruptcy.

[12] Moyes was soon to retire when he was forced out as chief executive officer (CEO) at Swift in October 2005 after a United States Securities and Exchange Commission (SEC) investigation into insider trading.

[13] The company's drivers and eighty-three percent of outstanding shares (approximately half of those controlled by the family) supported the buyout.

[14] Swift’s terminal network grew to over forty full service facilities in the continental United States and Mexico before contracting during the 2008 recession.