Financial Advisors & Institutions

(800) 700-3316

Osterweis Fund Investors

(866) 236-0050

Please note that account-specific requests (e.g., trades, account inquiries, account maintenance requests) cannot be submitted via email.

Regular Mail
Osterweis Funds
c/o U.S. Bancorp Fund Services, LLC
P.O. Box 701
Milwaukee, WI 53201-0701

Overnight Mail
Osterweis Funds
c/o U.S. Bancorp Fund Services, LLC
615 E. Michigan St., Fl. 3
Milwaukee, WI 53202-5207

Managed Accounts

Client Relations Team
(415) 434-4441

Mailing Address
One Maritime Plaza
Suite 800
San Francisco, CA 94111


Michelle Swager, Director of Communications & Marketing
(415) 434-4441


For general inquiries, please call (415) 434-4441 or email at (Please note that transactional requests cannot be submitted via email).

For concerns about our website or emails please contact us at

For concerns regarding the California Consumer Privacy Act or any related requests please call (800) 800-4154 or email

The Osterweis Funds are available by prospectus only. The Funds’ investment objectives, risks, charges and expenses must be considered carefully before investing. The summary and statutory prospectuses contain this and other important information about the Funds. You may obtain a summary or statutory prospectus by calling toll free at (866) 236-0050, or by visiting Please read the prospectus carefully before investing to ensure the Fund is appropriate for your goals and risk tolerance.

Mutual fund investing involves risk. Principal loss is possible.

Osterweis Capital Management is the adviser to the Osterweis Funds, which are distributed by Quasar Distributors, LLC.