I applied through university. The process took 2 weeks. I interviewed at William Blair (Chicago, IL) in Feb 2012
Interview
Initial contact was made with on campus recruiting. They selected me for an on-campus interview. This initial interview consisted of equal parts fit and technical questions.
The next step was a Super Day at their office in Chicago. This consisted of 8 back to back interviews with bankers ranging from Analyst up to Directors. Some of these interviews were all technical, some were all fit, and some were mixed.
I found out I got the offer the next day.
Interview questions [1]
Question 1
You have 100 balls (50 black balls and 50 white balls) and 2 buckets. How do you divide the balls into the two buckets so as to maximize the probability of selecting a black ball if 1 ball is chosen from 1 of the buckets at random?
I applied through an employee referral. I interviewed at William Blair (New York, NY) in Feb 2026
Interview
30 minute interview session set up through email. Was expecting 1/2 behavioral and 1/2 technical but ended up being completely behavioral. Had the classic TMAY, why William Blair, why Investment Banking, and why [industry group]. Also asked other basic behavioral questions about times you led a group and more.
Interview questions [1]
Question 1
When is a time that you managed multiple deadlines in order to get something done an dhow did you deal with it?
30 minute interivew virtually. Consisted of 2/3 behavioral and 1/3 technical. It was very conversational and I had a few minutes at the end to ask him questions as well.
I applied through an employee referral. I interviewed at William Blair (Atlanta, GA) in Jan 2026
Interview
One interview split between technicals and behavioral. Asked about valuation methods and the prons and cons of each as well as why William Blair and other standard interview questions. Overall, not to bad of an interview.
