Ken first worked for his father.
Ken Monfort went to Colorado State University to get his degree in Agriculture. He then worked for Monfort Inc as an executive.
Ken took advantage of the new highway system near Greeley and moved the plant out to the country closer to the ranchers and feedlots yet close to getting the beef to market.
He also began to cut up the beef at the plant. Then the beef was shipped to the stores already cut up to be sold. Monfort Beef became popular with both grocers and restaurants.
In 1970, Ken Monfort became the CEO of the company.
The company did well under his leadership. Monfort Inc. was named Employer of the year in 1970.
Ken Monfort was active in the community.
Ken and his family also gave money to many causes to improve the quality of life in Greeley. Some of the areas that he supported were the Monfort Birth Center, UNC's Kenneth W. Monfort College of Business, the Union Colony Civic Center, and the Monfort Children's Clinic. To remember Lt. Richard Monfort and other veterans, the Monforts also contributed much of the cost for Greeley Veterans' Park located at Bittersweet Park.
Monfort was also active in politics. He held a seat in the Colorado General Assembly. In 1968, he ran for the Colorado Senate Seat but was defeated.
The National Western Stock Show named him as Citizen of the West in 1991 honoring him as "a pioneer in the livestock industry and community leader in Colorado and the Rocky Mountain West."
Ken Monfort died at age 71.
On February 2, 2001, Ken Monfort died in Longboat Key, Florida. He retired to Florida with his wife Myra in 1995.