AlienVault, a US-based network security company that counts technology holding group Teldat among its backers, has raised $22.4m.
AlienVault’s C round was led by venture firms Kleiner Perkins Caufield & Byers and Sigma, and joined by venture firm Trident Capital and Adara Venture Partners.
Ted Schlein, a Kleiner managing partner, will join AlienVault’s board. Sigma Managing Director Bob Spinner will become a board observer.
AlienVault said it had more than doubled revenue in the first half of this year, and now had more than 300 customers. In the first half it also added 60 net new customers and had upsold existing customers by more than 50%.
In February AlienVault, completed an $8m series B funding round, bringing its total financing to $12m.
Trident Capital led the round and was joined by fellow venture capital firm Adara Venture Partners and Neotec, an investment fund backed by European Union and Spanish government ministries. Adara and Neotec previously joined Teldat in funding AlienVault’s series A round, which raised $4 in June 2010.