Berkshire Partners closed its latest middle-market private equity fund, Berkshire Fund IX, at $5.5 billion, said a news release.
The firm’s previous fund, Berkshire Fund VIII, closed in 2011 at $4.5 billion.
Firm executives expect to invest $50 million to $500 million in middle-market growth companies with acquisition values of $200 million to $2 billion.
Limited partners in the new fund were primarily investors that have made commitments to previous Berkshire funds. Investors in the new fund include the $59.6 billion Massachusetts Pension Reserves Investment Management Board, Boston and $24 billion Texas County & District Retirement System, Austin.
A spokeswoman could not immediately be reached for additional information by press time.