Private equity firm Thoma Bravo announced that it had inked a definitive agreement to purchase Empirix Inc. Financial terms of the transactions were not disclosed. The deal is expected to close early next month. Empirix is a Massachusetts-based company that specializes in end-to-end network testing, analytics solutions and network monitoring. Empirix was advised on the sale by BMO Capital Markets.

Empirix Inc's roster of clients included communication service providers, banks, mobile operators, healthcare firms and insurance companies. Last year, the company reported year-over-year revenue growth of 22%.

Thoma Bravo Partner Seth Boro said, "The company offers a unique ability to analyze customer behaviors by application in real time. Its products, strategy and leadership have positioned it for success, and we look forward to accelerating that success through organic growth and strategic acquisition opportunities."

Thoma Bravo currently holds more than USD 4 billion in equity commitments from various private equity firms. Its other investments included InfoVista, Network Insturments and Sonic WALL .