William Blair Interview Process: Rounds, Timeline & Compensation
Michael King, PE Investment Manager ·
William Blair runs a HireVue one-way video screen, then a first-round interview covering behavioural questions and a paper LBO, then a Superday of four 30-minute back-to-back interviews with a mix of MDs, VPs and Associates — one interview typically focuses on LBO/technical questions, one on a case study, and one on fit. In the US, HireVue assessments for the following year's class are typically due by June-August, with Superdays running August through November on the standard on-cycle calendar. In the UK, William Blair runs separate European Off-Cycle Internship Programmes out of London and Frankfurt, spread across the year rather than compressed into a single autumn sprint — the usual US on-cycle vs European off-cycle split seen across the Street. In London, Indeed's aggregated pay data (blended across analyst grades) puts average base pay at roughly £77k, though WSO forum commentary describes the London office's hours as heavy relative to base pay. In the US, William Blair raised first-year analyst base to $110k in 2024 ($115k in the second year), matching a round of pay rises across peer elite boutiques that year, with all-in first-year comp (base plus bonus) typically $150k-$220k. Applying the roughly 20-30% London discount typical of US-headquartered banks to that figure implies a first-year-specific London base closer to £60k-£70k — likely more representative than the blended Indeed number above.
Interview rounds
A HireVue one-way video screen, then a first-round interview covering behavioural questions and a paper LBO, then a Superday of four 30-minute back-to-back interviews with a mix of MDs, VPs and Associates — one interview typically focuses on LBO/technical questions, one on a case study, and one on fit
Typical timeline
In the US, HireVue assessments for the following year's class are typically due by June-August, with Superdays running August through November on the standard on-cycle calendar. In the UK, William Blair runs separate European Off-Cycle Internship Programmes out of London and Frankfurt, spread across the year rather than compressed into a single autumn sprint — the usual US on-cycle vs European off-cycle split seen across the Street.
Compensation range
In London, Indeed's aggregated pay data (blended across analyst grades) puts average base pay at roughly £77k, though WSO forum commentary describes the London office's hours as heavy relative to base pay. In the US, William Blair raised first-year analyst base to $110k in 2024 ($115k in the second year), matching a round of pay rises across peer elite boutiques that year, with all-in first-year comp (base plus bonus) typically $150k-$220k. Applying the roughly 20-30% London discount typical of US-headquartered banks to that figure implies a first-year-specific London base closer to £60k-£70k — likely more representative than the blended Indeed number above.
Notes
William Blair has been 100% employee-owned since its 1935 founding in Chicago, a partnership structure that sets it apart from the publicly listed or PE-backed boutiques it competes against for talent — the firm has had only six CEOs in nine decades. Its paper LBO is the process's defining feature, reportedly surfacing at nearly every stage rather than being confined to one round, so candidates should over-prepare it relative to other elite boutiques.
Frequently asked questions
How many interview rounds does William Blair run?
A HireVue one-way video screen, then a first-round interview covering behavioural questions and a paper LBO, then a Superday of four 30-minute back-to-back interviews with a mix of MDs, VPs and Associates — one interview typically focuses on LBO/technical questions, one on a case study, and one on fit
How long does the William Blair interview process take?
In the US, HireVue assessments for the following year's class are typically due by June-August, with Superdays running August through November on the standard on-cycle calendar. In the UK, William Blair runs separate European Off-Cycle Internship Programmes out of London and Frankfurt, spread across the year rather than compressed into a single autumn sprint — the usual US on-cycle vs European off-cycle split seen across the Street.
What does William Blair pay first-year hires?
In London, Indeed's aggregated pay data (blended across analyst grades) puts average base pay at roughly £77k, though WSO forum commentary describes the London office's hours as heavy relative to base pay. In the US, William Blair raised first-year analyst base to $110k in 2024 ($115k in the second year), matching a round of pay rises across peer elite boutiques that year, with all-in first-year comp (base plus bonus) typically $150k-$220k. Applying the roughly 20-30% London discount typical of US-headquartered banks to that figure implies a first-year-specific London base closer to £60k-£70k — likely more representative than the blended Indeed number above.