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 2 of 20

• Logan Joseph BayerCRD 7754446 · Chicago, IL
  Broker
• Dylan Tyler BeckerCRD 7149678 · Chicago, IL
  Broker
• Brandon Christopher BeckmanCRD 7522930 · Chicago, IL
  Broker
• Marcus Andre BelangerCRD 8052000 · Chicago, IL
  Broker
• Michael Thomas BellCRD 4234253 · New York, NY
  Broker
• Kristin BennettCRD 7618898 · Chicago, IL
  IA RegisteredBroker
  Disclosure event(s) on record
• Michael Robert BensteinCRD 4800442 · Chicago, IL
  IA RegisteredBroker
• Darren BentonCRD 6844038 · New York, NY
  Broker
• Derek David BeresCRD 4854156 · Charlotte, NC
  Broker
• Adam Robert BergerCRD 6234822 · Los Angeles, CA
  Broker
• Kevin Can BerkayCRD 7754441 · Chicago, IL
  Broker
• Joshua BerryCRD 7700207 · Chicago, IL
  Broker
• Kristopher Michael BethCRD 6028109 · Chicago, IL
  Broker
• Arjun Rohit BhatiaCRD 6836261 · Chicago, IL
  Broker
• Christian Charles BiscardoCRD 7931278 · Chicago, IL
  Broker
• James Francis BishopCRD 2372849 · New York, NY
  Broker
• James Thomas Crinan BlackburnCRD 7441872 · London
  Broker
• William BlakelyCRD 7393503 · Los Angeles, CA
  Broker
• Ilya Alex BlanterCRD 5573026 · New York, NY
  Broker
• Douglas Allen BlauwCRD 2194665 · Chicago, IL
  Broker
• Phillip BleeCRD 7092796 · Chicago, IL
  Broker
• Matthew Thomas BlumeCRD 5002490 · Chicago, IL
  IA RegisteredBroker
• Milan BobekCRD 7766777 · Chicago, IL
  Broker
• Robert Nicholas BoeyeCRD 7130014 · Atlanta, GA
  IA RegisteredBroker
  Disclosure event(s) on record
• Reid Nicholas BondyCRD 7700211 · Chicago, IL
  Broker
• Joseph Edward BourellyCRD 4858024 · Chicago, IL
  Broker
• Stephen James BowenCRD 4105844 · Villanova, PA
  IA RegisteredBroker
• Zachary BoylenCRD 7754470 · Chicago, IL
  Broker
• Andrew Frederick BrackmannCRD 6360859 · Chicago, IL
  Broker
• Matthew John BradyCRD 6069241 · Chicago, IL
  IA RegisteredBroker
• Steven Patrick BratekCRD 4682102 · Chicago, IL
  BrokerRegistration inactive
• Christopher John BrathwaiteCRD 2890124 · Chicago, IL
  IA RegisteredBroker
• Robert Taylor BreedCRD 5939148 · Boston, MA
  Broker
• Jack Harry BrenczewskiCRD 7932786 · Chicago, IL
  Broker
• Jack Regan BrownCRD 6151306 · Chicago, IL
  IA RegisteredBroker
• Kate Wanki Hui BrownCRD 6213872 · Chicago, IL
  Broker
• Noah Uehara BruneCRD 7762388 · Chicago, IL
  Broker
• Faith BrunnerCRD 7380124 · Chicago, IL
  Broker
• Paul Anthony BuchananCRD 2553518 · Chicago, IL
  Broker
• Franz Moritz BuergerCRD 4664419 · Chicago, IL
  Broker
• Heather Jean BulowCRD 5374525 · Chicago, IL
  Broker
• Angela Louise BurdelikCRD 2225934 · Chicago, IL
  IA RegisteredBroker
• Joel Thomas BurkardCRD 7758590 · Charlotte, NC
  Broker
• Julie BurrowsCRD 3229381 · Chicago, IL
  IA RegisteredBroker
• Adrian Lewis BursonCRD 1015057 · Chicago, IL
  Broker
• Michaelle Ida BurstinCRD 4842946 · Chicago, IL
  Broker
• Jeffrey BurtelowCRD 4677119 · Chicago, IL
  Broker
• Maxwell Forrest BadgleyCRD 2487182 · Chicago, IL
  IA RegisteredBroker
• Oscar Lewis Bakken-DurchslagCRD 7945277 · Chicago, IL
  Broker
• Jonathan BassCRD 7573113 · Chicago, IL
  BrokerRegistration inactive

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 20, 2026. Source: ADV_BULK. Your use of BrokerCheck data reproduced here is subject to FINRA's Terms of Use.