Aston, Pa.-based Topp Portable Air earned a position on the Inc. 5,000 list of fastest-growing privately held companies in the United States for the second year in a row, the company announced last week.

The Inc. 5,000, an expansion of Inc. magazine’s annual Inc. 500 list, includes many larger businesses this year. The awarded companies represent the fastest-growing movers and shakers in the small business world.

“We are so honored to be part of this list for the second consecutive year,” said Topp Portable Air president and CEO, Daniel Topp. “We are deeply humbled by the recognition of our efforts.”

In 2000, Topp was recognized by Inc. 500 as one of the Top 500 Fastest-Growing Privately Held Companies.

Topp Portable Air offers an entire line of temperature control equipment for sale and rental. It is No. 100 on the RER 100.