tritium-partners-logoTritium Partners of Austin has closed on its inaugural $309 million private equity fund.

The fund’s investors include leading retirement systems, private pension plans, university endowments, foundations, diversified financial institutions and insurance companies. Tritium plans to invest in companies in the Internet and information services, supply chain and logistics and financial and business services industries with larger growth potential led by experienced entrepreneurs.

“We are excited to have the support of a prestigious group of institutional investors as we launch our inaugural fund,” Philip Siegel, Managing Partner and Co-Founder of Tritium, said in a news statement. “They share our belief in the compelling investment opportunities that exist in the lower middle market and the advantage that Tritium has in realizing those opportunities with our growth-focused investment approach.”

The fund, called Tritium I, has already made four investments in Fexy Media, Global Access, Roadone and Giact.