"Until growth returns to the small-business half of the economy, it will be hard to generate meaningful economic growth and job creation," he said.
The index — which was 12 points higher in June than at its lowest reading during the recession but 7 points below the pre-2008 average — has reflected the ups and downs of the economy for the past several months.
The top problems for small-business owners were taxes and regulations and red tape, with 20 percent of those surveyed ranking each as their No. 1 problem.
Another 18 percent of owners cited weak sales as their top problem. Meanwhile, only 2 percent reported that financing was a major concern.
Of those businesses asked, 19 percent reported job openings they could not fill in the current period, which was unchanged from May.
In June, only 7 percent said the current period as a good time to expand facilities (down 1 point).