The new partners are: Simon Fennell ; Robert Napoli ; Scott Stevens ; Joseph Tabet ; Matt Zimmer ; and Jon Zindel .

“We are always pleased to invite new partners into the organization, and these individuals have had a positive impact at the firm over the years and we have high expectations for the future as well,” said John Ettelson, president and CEO of William Blair & Company.

The firm, which is independent and owned by its employees, has offices in 10 cities including London, New York, Shanghai and Zurich. It offers investment banking and asset management.