Sales for human resources provider Insperity (NYSE:NSP) moved up 5.5% this quarter compared to the same time in 2012. The company attributed its growing revenue to a 1.7% boost in the average number of worksite employees paid per month, as well as a 3.6% increase in monthly revenues of said employees.

Insperity also, as CEO Paul Sarvadi explained in the press release, "achieved our goal of ramping up the number of trained Business Performance Advisors and the corresponding sales activity is following." Besides rising revenue, these changes were partly responsible for a 1.3% increase in operating expenses.

The boost in these expenses brought the company's operating income down to $17.1 million, compared to $19.1 million last year. Net income, meanwhile, dropped 11.9% from Q3 2012's $11.4 million, to $10 million. Cash-wise, Insperity has $161.8 million on its balance sheet, compared to last year's $264.5 million.

All in all, Sarvadi believes that the company is "well positioned for strong year-end sales, which will contribute to worksite employee growth in 2014."