Accel-KKR, a Menlo Park, California-based technology-focused investment firm, is to raise $2.55 billion for its sixth fund. 

According to an SEC filing, Accel-KKR Capital Partners VI, LP, has not raised funds, yet.

Accel-KKR focuses on software and IT-enabled businesses, well-positioned for topline and bottom-line growth. The firm, which focuses on middle-market companies, provides a broad range of capital solutions including buyout capital, minority-growth investments, and credit alternatives.

Accel-KKR also invests across a wide range of transaction types including private company recapitalizations, divisional carve-outs and going-private transactions.

Headquartered in Menlo Park, California, the firm has additional offices in Atlanta and London.