William Blair & Company L.L.C.

Firm record

As recorded in SEC IAPD

Firm CRD

1252

SEC number

801-688

Firm type

RIA

Assets under management

$64.3B as of Mar 31, 2026

Website

www.williamblair.com ↗

Phone

312-236-1600

Address

150 North Riverside Plaza, Chicago, IL, 60606

Advisors at this firm

987 in our index · page 17 of 20

• Anurag SharmaCRD 4821676 · London
  Broker
• Tyler Walker SharpeCRD 7935649 · Atlanta, GA
  Broker
• Bryan Francis SheaCRD 5023792 · Chicago, IL
  Broker
• Robert James SheahanCRD 2951216 · New York, NY
  Broker
• Loren Norris ShealyCRD 6356254 · San Francisco, CA
  Broker
• Justin Matthew SheirCRD 7800397 · Atlanta, GA
  Broker
• John ShermanCRD 5810661 · Charlotte, NC
  Broker
• Elizabeth Frances ShumanCRD 5932879 · Chicago, IL
  Broker
• Rafal SiekluckiCRD 8128748 · Chicago, IL
  IA RegisteredBroker
• David Harrison SimonsCRD 6357416 · Charlotte, NC
  Broker
• Andrew Ryan SimsCRD 6043860 · Chicago, IL
  IA RegisteredBroker
  Disclosure event(s) on record
• Eliza Laura SimsicCRD 5924821 · Chicago, IL
  IA RegisteredBroker
• Alexander Donald SirCRD 6074382 · Chicago, IL
  Broker
• Michael Mark SirvinskasCRD 1588299 · Chicago, IL
  IA RegisteredBroker
• Michael William SiskaCRD 4352499 · Chicago, IL
  Broker
• Nicholas Mark SkorniaCRD 6834356 · New York, NY
  Broker
• Charles Taylor SloneCRD 7766831 · Chicago, IL
  Broker
• Charles SmeadCRD 6215525 · San Francisco, CA
  Broker
• Brent Michael SmithCRD 4200224 · Chicago, IL
  Broker
• Charles SmithCRD 7494358 · Atlanta, GA
  Broker
• Derek George SmithCRD 5462214 · Chicago, IL
  Broker
• Ian Paul Rhoades SmithCRD 8059675 · London
  Broker
• Tyler Matthew Allen SmithCRD 6229791 · Chicago, IL
  IA RegisteredBroker
• Maxwell Andrew SmockCRD 6847974 · Chicago, IL
  Broker
• Christopher Thomas SonetzCRD 2621568 · Chicago, IL
  Broker
• John Steven SonnierCRD 2925069 · Chicago, IL
  Broker
• Benjamin Ross SorotaCRD 7766930 · Chicago, IL
  Broker
• Joshua Steve Soto OcanaCRD 8174572 · Chicago, IL
  Broker
• Gregory Thomas SouthCRD 5823052 · Charlotte, NC
  Broker
• Ross Riley SparenblekCRD 6182789 · Chicago, IL
  Broker
• Hoyt Martin SpearmanCRD 7461272 · New York, NY
  IA RegisteredBroker
• Alexander Treschitta SquibbCRD 8223854 · Chicago, IL
  Broker
• Ryan Parker StackhouseCRD 6967278 · Los Angeles, CA
  Broker
• Per-Ake StahlCRD 4849463 · London
  Broker
• Christian StarzynskiCRD 7383545 · Chicago, IL
  Broker
• Robert Bernard StaubCRD 6358012 · San Francisco, CA
  Broker
• Michael StedronskyCRD 7255557 · Chicago, IL
  IA RegisteredBroker
• Christopher Clayton StellaCRD 5470093 · New York, NY
  Broker
• Kelsey Marie StellaCRD 6383236 · Chicago, IL
  IA RegisteredBroker
• Abigale K StenglerCRD 7718467 · Chicago, IL
  Broker
• James Patrick StephensCRD 5701300 · Chicago, IL
  Broker
• Katharine Cassatt StodghillCRD 6956569 · New York, NY
  Broker
• Madeleine Carling StoneCRD 7817150 · New York, NY
  Broker
• Aaron Michael StoutCRD 2568752 · Chicago, IL
  IA RegisteredBroker
• Bryan Shephard StreetCRD 2474229 · New York, NY
  Broker
• Jeffrey Walter StrouseCRD 4698065 · New York, NY
  Broker
• Jacob D StuiverCRD 6022548 · New York, NY
  Broker
• Geralyn SullivanCRD 1210927 · Chicago, IL
  IA RegisteredBroker
• Jason John SundersonCRD 5543848 · Chicago, IL
  Broker
• Linda Hope SutkinCRD 1084086 · New York, NY
  IA RegisteredBroker

Source & corrections

Where this page comes from

Advisor registration data on this site is reproduced from the SEC's Investment Adviser Public Disclosure (IAPD) system and FINRA's BrokerCheck. Those systems are the official records; this site is not. We do not alter the factual content of the records we reproduce.

Data compiled Aug 21, 2026. Source: ADV_BULK. Your use of BrokerCheck data reproduced here is subject to FINRA's Terms of Use.