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 8 of 20

• Alan Martin HealyCRD 4097904 · London
  Broker
• Catherine Anne HendersonCRD 6934030 · Chicago, IL
  Broker
• Leah Claire HendricksonCRD 7833015 · Chicago, IL
  Broker
• Andrew Martz HendrieCRD 5679288 · Chicago, IL
  Broker
• Victor Manuel HernandezCRD 6852431 · Chicago, IL
  Broker
• Alvaro Hernandez IbanezCRD 6114710 · London
  Broker
• Benjamin HerrmannCRD 7617469 · Frankfurt Am Main
  Broker
• Patrick Laurence HickeyCRD 6013400 · Chicago, IL
  Broker
• Paul M HindsleyCRD 2599533 · Chicago, IL
  Broker
• Allen Joseph HinkelmanCRD 2059679 · Chicago, IL
  IA RegisteredBroker
• Kathleen Yakulis HinnantCRD 6557251 · Charlotte, NC
  Broker
• Jonathan Frank HoCRD 4981034 · Chicago, IL
  Broker
• Payton Elizabeth HoagCRD 7128064 · Chicago, IL
  IA RegisteredBroker
• Anthony T HobanCRD 2758829 · Chicago, IL
  IA RegisteredBroker
• Whitney HobanCRD 7128085 · Chicago, IL
  IA RegisteredBroker
• Edward P HobbieCRD 2437220 · Chicago, IL
  Broker
• Charles Henry HodgesCRD 831263 · Chicago, IL
  IA RegisteredBroker
• Christian David HodnelandCRD 5004396 · Chicago, IL
  Broker
• Manuel HodzicCRD 6772505 · Chicago, IL
  IA RegisteredBroker
• Robert John HoffmanCRD 5025159 · Chicago, IL
  IA RegisteredBroker
• Peter Dempsey HoffmannCRD 6221605 · Chicago, IL
  Broker
• Kathryn Rose HogeCRD 6224813 · Denver, CO
  Broker
• Andrew Parker HoldenCRD 5965174 · Chicago, IL
  Broker
• David Russell HollowayCRD 2722482 · New York, NY
  Broker
• Russell Wilhelm HolmgrenCRD 1740709 · Chicago, IL
  Broker
• Nathan Randall HolstromCRD 7930525 · Chicago, IL
  Broker
• Lindsey Gottfred HoltonCRD 2907882 · Chicago, IL
  IA RegisteredBroker
• Christopher Michael HonoldCRD 6123480 · Chicago, IL
  BrokerRegistration inactive
• Sarah Muntz HopfingerCRD 6340313 · Charlotte, NC
  Broker
• Robert Dixon HopkinsCRD 1204247 · Baltimore, MD
  IA RegisteredBroker
  Disclosure event(s) on record
• Charles Joseph HopperCRD 7754901 · Chicago, IL
  Broker
• Mallory Patrice HorejsCRD 5514052 · Chicago, IL
  Broker
• Andy Tsan-Yu HsiehCRD 6243282 · San Francisco, CA
  Broker
• Robyn A HulfeldCRD 5331328 · Chicago, IL
  IA RegisteredBroker
• Sean Gregory HussCRD 3261782 · Chicago, IL
  Broker
• Tyler HutinCRD 7424771 · Chicago, IL
  Broker
• Nicola HyndsCRD 5485031 · London
  Broker
• Erin Marie HardimanCRD 7264139 · New York, NY
  Broker
• Edward Ridgway HatfieldCRD 6965966 · New York, NY
  Broker
• Julius Leonard HeidrichCRD 8114216 · Charlotte, NC
  Broker
• Charles Mccague HobanCRD 8119812 · Chicago, IL
  IA RegisteredBroker
• Peter HoeflingerCRD 7251558 · New York, NY
  Broker
• William Jake HyattCRD 7129627 · Chicago, IL
  Broker
• Joseph Dante IacovellaCRD 6359966 · New York, NY
  Broker
• Daniel William IannessaCRD 4538826 · Chicago, IL
  IA RegisteredBroker
• Patrick Michael IgoCRD 7930523 · Chicago, IL
  Broker
• Kyle John IslerCRD 7756533 · Charlotte, NC
  Broker
• John Curtis IveyCRD 5797035 · Los Angeles, CA
  Broker
• Patrick IrwinCRD 7980387 · London
  Broker
• John Paul JacksonCRD 2938512 · Chicago, IL
  Broker

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.