RICHARDSON, TX -- Chiaro Networks today announced the completion of its fourth funding round of $80 million. To date, the company has raised a total of $210 million. New backers, Delta Ventures, LandHo Ventures and Poalim Capital Markets, joined Chiaro’s current high-profile venture capitalists, including CenterPoint Ventures, InterWest Partners, Rho Ventures, Sevin Rosen Funds and STAR Ventures.