Symantec, a Nasdaq-listed computer company, has agreed to acquire Clearwell Systems, a US-based online search system for companies for $410m.
Clearwell has raised $33m from Northgate Capital, which is majority funded by India-based industrial conglomerate Religare Enterprises, and venture capital firms DAG Ventures (formerly known as Duff Ackerman & Goodrich), Redpoint Ventures and Sequoia Capital.