Our People
At William Blair, we have unique voices but shared values. Each investment team stays true to its philosophy, but a culture of deep curiosity and conviction promotes flexibility and ongoing improvements. In the end, thanks to our broad-based employee ownership structure, we strive for an environment where everyone wins; we aim to align with our clients’ long-term interests, and employees are rewarded based on their contributions.
Talented Colleagues
I like being able to interact with so many smart people; you never stop learning.
Esteban Gonzalez Rosell
RESEARCH ANALYST, GLOBAL EQUITY TEAM
90%
of our portfolio managers and analysts have earned advanced degrees or are CFA charterholders
28
of our 85 portfolio managers and analysts are partners
26
average years of industry experience for portfolio managers
All data as of 12/31/2025
Culture and Inclusion
FACES OF INVESTMENT MANAGEMENT
I grew up on the near north side of Chicago, in the now demolished Cabrini-Green housing project. When I graduated from high school, I wanted to go to a four-year college but couldn’t afford it, so I started working in the mail room of a brokerage firm.
Corwin Marbly
Administrative Assistant
We believe great talent can come from anywhere and that diversity of skills, capabilities, perspectives, and experiences drives innovation and success.
To support this, we partner with a variety of professional organizations, so together we can support the efforts to enhance access to careers within the financial services sector.
