The December issue of Inc. magazine has named five Utah companies among the country's 500 fastest-growing privately held companies.

The Franklin International Institute, based in Salt Lake City, was ranked 151st on the magazine's eighth-annual list.Franklin is a time management company that teaches seminars on productivity and time management and designs, produces and distributes the Franklin Day Planner. The company employed 600 in 1989.

Softcopy of Orem rated 222nd. The company duplicates, assembles and ships software. Softcopy has 477 employees, according to Inc.'s 1989 figures.

WordPerfect, also headquartered in Orem, was ranked 240th on the magazine's list. Founded in 1979, WordPerfect produces software for fields as varied as graphics and office automation.

Industrial Health, an environmental consulting services firm based in Salt Lake City, was ranked 331st. The company was founded in 1980.

Chums International, makers of the colorful eyeglass holders called Chums, was ranked 420th. Based in Hurricane, the company also produces sportswear and has established a research arm.

Although based in Evanston, Wyo., 39th-ranked Ehman, which manufactures disc drives and computer keyboards, has one of its main branch offices in Salt Lake City. Founded in 1985, Ehman employed 129 people in 1989.

The companies were judged on sales growth, profit range and work-force increases between 1985 and 1989.