We recently enhanced our online account system. Please click here to access the new login page.


This area of our web site enables you to check your William Blair Funds account balance and accomplish a wide variety of account transactions, including exchanging between Funds, changing your address, and viewing statements and tax forms.

Getting started is easy:

  • You will need your Social Security Number
  • You will need your William Blair Fund Account Number
  • You will create your own unique “PIN” for logging on (or entering) this area of the site; You have the ability to change or reset this PIN whenever you like

    Accessing Online Account Services is fast, secure and it is available 24 hours a day, seven days a week!

    Click Here To Get Started