H1B Report
H-1B sponsorILFEIN 36-2214610Updated Sep 2026

William Blair & Company, LLC

US H-1B Labor Condition Application activity for William Blair & Company, LLC. Filed 131 disclosures between FY2010 and FY2026 from worksites with a IL headquarters indicator.

Total filings
13
Outside top-N · FY2026
Certified
100.0%
unconditional · FY2026
Withdrawn
0.0%
withdrawn rate · FY2026
Denied
0.0%
rejection rate · FY2026

H-1B outcome breakdown

Share of William Blair & Company, LLC’s LCAs by DOL case status, all fiscal years. Use the year filter above for a single-year breakdown.

Outcome breakdown: Certified 87.0%, Cert-withdrawn 12.2%, Denied 0.8%
Outcome breakdown
OutcomeShare
Certified87.0%
Cert-withdrawn12.2%
Denied0.8%
Certified87.0%
Cert-withdrawn12.2%
Denied0.8%

Top occupations sponsored

SOC codes filed most by William Blair & Company, LLC across all fiscal years. Click any row to open the national salary guide.

H-1B filings by fiscal year

Year-over-year H-1B filing volume — a hiring-demand signal, not headcount.

YearFilings
FY20107
FY20115
FY20125
FY20135
FY20147
FY20156
FY20166
FY201719
FY201811
FY201919
FY202417
FY202511
FY202613
Time series: 13 points from FY2010 to FY2026
Time series
PeriodValue
FY20107
FY20115
FY20125
FY20135
FY20147
FY20156
FY20166
FY201719
FY201811
FY201919
FY202417
FY202511
FY202613

This employer filed at least one WARN Act notice in the last 24 months — a state-mandated advance announcement of a planned mass layoff or closure. A notice is an announcement, not a completed layoff, and it is not evidence of any link between the employer’s H-1B filings and its workforce plans.

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