Eleven Utah companies are on the 25th annual Inc. 500 ranking of the fastest-growing private companies in the country.

The list was announced this week.

Logoworks of Lindon was the top-ranked Utah company, coming in 66th. Other Utah companies are:

• Omniture, Orem, 67.

• Atlas Marketing Group, Provo, 143.

• Backcountry.com, Park City, 165.

• Summit Energy, Park City, 236

• Universal Accounting Center, Salt Lake City, 313.

• Edge Products, Ogden, 328.

• Spring Communications, Salt Lake City, 349.

• MaxStream, Lindon, 391.

• Diamond Wireless, Salt Lake City, 419.

• VitalSmarts, Provo, 491.

The list is topped by Litle & Co. of Lowell, Mass., a provider of credit card payment processing services to direct and interactive marketers. It had three-year sales growth of 5,629.1 percent.

The Inc. 500 list is based on revenue growth from 2002 through 2005. To qualify, companies had to be U.S.-based, privately held and independent as of Dec. 31, 2005, and have at least $600,000 in net sales in the base year.

The 500 companies reported total revenue of $19.7 billion, up from $16.5 billion last year and $12.9 billion in 2000. Fourteen companies had annual revenues of more than $200 million, compared with 11 last year. The 500 companies have employed more than 90,000 people since they were founded. A total of 104 of the listed companies were started after 2000.