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 11 of 20

• Noah LevitzCRD 7783445 · Boston, MA
  Broker
• Stewart LicudiCRD 5225133 · London
  Broker
• Justin LinCRD 7335343 · Chicago, IL
  Broker
• Alexandra Rose LindCRD 7705370 · New York, NY
  Broker
• Laura Marie LingerCRD 4847251 · Chicago, IL
  IA RegisteredBroker
• Colin Robert LinnenCRD 7933725 · Chicago, IL
  Broker
• Anna LinscottCRD 7759879 · Chicago, IL
  Broker
• Sarah LittleCRD 6956851 · Chicago, IL
  Broker
• Jessica Flora LitwinCRD 7321635 · Chicago, IL
  Broker
• Reganne Marie LivelyCRD 7403915 · Chicago, IL
  IA RegisteredBroker
• Jason Hebert LloydCRD 4690964 · Chicago, IL
  Broker
• Abigail LochotzkiCRD 6634247 · Chicago, IL
  Broker
• Michael Thomas LoffredoCRD 6663385 · Chicago, IL
  Broker
• Raymond J LombardiCRD 5257244 · Chicago, IL
  IA RegisteredBroker
• Samantha Jayne LongeneckerCRD 6818253 · Chicago, IL
  Broker
• Amy Lynn Losquadro DohertyCRD 2449030 · Chicago, IL
  Broker
• Benjamin Reiner LossCRD 5850248 · Chicago, IL
  Broker
• Samantha LoveringCRD 7798981 · New York, NY
  Broker
• Brandon Wilson LowerCRD 2666655 · New York, NY
  Broker
• Julien LucasCRD 7466007 · London
  Broker
• Kelsey LucerneCRD 8104432 · Chicago, IL
  Broker
• William LynchCRD 7755821 · New York, NY
  Broker
• Jennifer Aileen LyonsCRD 2982870 · Chicago, IL
  IA RegisteredBroker
• Kaya Elle LyonsCRD 7923987 · Atlanta, GA
  Broker
• Nicholas George LacoCRD 7829909 · Charlotte, NC
  Broker
• Brendan LavelleCRD 8179340 · New York, NY
  Broker
• Jingjing LiCRD 7932899 · New York, NY
  Broker
• Steven Michael LichtmanCRD 2739239 · New York, NY
  Broker
• Aaron LupariCRD 7069464 · Chicago, IL
  Broker
• Nicole Marie MaciasCRD 4960148 · Chicago, IL
  Broker
• Neal Francis MacleanCRD 2506410 · Boston, MA
  Broker
• Trupti B MadgeriCRD 6834561 · Chicago, IL
  Broker
• Akash MahajanCRD 7934950 · San Francisco, CA
  Broker
• Maria MalekCRD 5834382 · London
  Broker
• Matteo MangiardiCRD 7146304 · Chicago, IL
  Broker
• Annette Marie MarkerCRD 2178142 · San Francisco, CA
  Broker
• Peter William Chicheley MarrCRD 1927209 · London
  Broker
• Leonard Whitson MarryottCRD 2191533 · Powell, OH
  IA RegisteredBroker
  Disclosure event(s) on record
• Brian Thomas MarshallCRD 2524410 · Chicago, IL
  IA RegisteredBroker
  Disclosure event(s) on record
• G Dewey MartinelliCRD 3087808 · Chicago, IL
  Broker
• Telmo R MartinsCRD 4970369 · Chicago, IL
  Broker
• Loui Laura MarverCRD 224074 · Chicago, IL
  IA RegisteredBroker
• Thomas Stanley MarxCRD 1417680 · Chicago, IL
  IA RegisteredBroker
• Krishna Ramesh MasoorCRD 7141273 · Chicago, IL
  Broker
• Oliver G MatskiCRD 6491263 · London
  Broker
• Daniel Blakesly MaudeCRD 5679434 · Chicago, IL
  IA RegisteredBroker
• Daniel Joseph MaxwellCRD 7278677 · Chicago, IL
  IA RegisteredBroker
• Kai Izumi MayaharaCRD 7799009 · Chicago, IL
  Broker
• Jennifer Ann MayerCRD 6174620 · San Francisco, CA
  Broker
• Michael Keith MccleanCRD 2373537 · Baltimore, MD
  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.