Whether it's tech-savvy fitness buffs, Brazilian eateries or, yes, even providers of silicone breast implants, June is shaping up to be potentially the best month by volume for U.S. initial public offerings since the heyday of 1999.

While the number of offerings emanating from Silicon Valley has slipped this year, as recently noted by sibling publication The Recorder, an uptick in activity elsewhere has helped put a jolt in the market for U.S. IPOs.

Last week San Francisco-based fitness electronics maker Fitbit got the IPO party moving by raising $732 million through a float on the New York Stock Exchange, one The Recorder notes yielded $1.8 million in legal fees and expenses for the company's lawyers from Fenwick & West and underwriter's counsel at Goodwin Procter. (Fitbit is also keeping another two Am Law 100 firms busy on IP matters.)