Just as VC fundraising roared back to life in Q1, so did fundraising on the buyout and mezzanine side of the private equity market. Sister magazine Buyouts this week reported that U.S.-based buyout and mezzanine firms raised $18.3 billion in Q1, up 79 percent from $10.2 billion during the same period last year. Fundraising also grew sequentially, up 36 percent from the Q4. Kohlberg Kravis Roberts & Co. took in a tad over $1 billion for its latest effort in Q1, according to our calculations–but that was only good for seventh place among buyout and mezzanine shops that closed on capital last quarter. Click through for a slideshow leading you throught the top 10.