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William Blair & Company L.L.C.

Updated today

Client assets under management

$52,677,435,980

Clients

35,296

26% high-net-worth

Advisors

321

of 492 employees

Firm type

Enterprise

300-3,000 advisors or >$30B in AUM

Clients per advisor

110

High

Average account size

$1,492,448

About

William Blair’s Private Wealth Management division provides discretionary and non‑discretionary investment management, financial planning and wealth services to individuals (including high‑net‑worth clients), foundations, pension and corporate clients. The firm also sponsors a wrap fee program, supports platform and sub‑advisory arrangements, and distributes affiliated pooled products while operating as an SEC‑registered investment adviser and broker‑dealer.

The firm pursues active, research‑driven management across equities, fixed income and alternative strategies, offering proprietary home‑office models and model portfolios to advisory clients and to other registered investment advisers through a Non‑Discretionary Model Portfolio Program. PWM advisors may hire third‑party Sub‑Managers through platform providers or engage the affiliate William Blair Investment Management LLC (WBIM) as a sub‑adviser, and William Blair provides access to private funds and co‑investment opportunities via its MB Investments Program.

Notable features in the brochure include the firm’s scale — roughly $64 billion in reported AUM and a reported 322 advisors, implying approximately $200 million of AUM per advisor — and an in‑house MB Investments structure where clients must affirmatively elect participation and where an affiliate (the MB General Partner) performs valuation and may receive carried interest. The brochure also details integrated operational relationships with custodial/clearing and platform providers (including NFS) and affiliated product conduits (WBIM, affiliated mutual funds and private funds), which influence product access, allocation and certain fee and credit arrangements.

Client services

Financial planning Portfolio management Selection of other advisers Equity research services

Expertise

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k)

Occupation focus

Founder/Business Owner Executive

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Fee options

Percentage

$0+: Up to 2.00% annually, subject to negotiation, payable quarterly (in advance or arrears) $50,000+: Minimum for PWM Non-Wrap Program Accounts $100,000+: Minimum for William Blair Wrap Program Accounts $100,000+: Minimum for Platform Separate Accounts (may be higher for certain third-party managers) $2,000,000+: Minimum for WBIM Sub-Advisory/WBIM Separate Accounts

Performance-based

Performance-based fees (carried interest) apply only to MB Partnership Series as described in fund documents; not offered generally to clients.

Other

Account minimum: $50,000 for PWM Non-Wrap Program Accounts; $100,000 for William Blair Wrap Program Accounts; $100,000 for Platform Separate Accounts (may be higher for certain third-party managers); $2,000,000 for WBIM Sub-Advisory/WBIM Separate Accounts Fee-only: Flat fees or asset-based fees for non-discretionary advisory and consulting services, subject to negotiation.

Main office location

William Blair & Company L.L.C.

150 North Riverside Plaza

Chicago IL 60606, United States

Number of offices

12

Most active in

Alabama · Alaska · Arizona · Arkansas · California · Colorado · Connecticut · Delaware · District of Columbia · Florida · Georgia · Hawaii · Idaho · Illinois · Indiana · Iowa · Kansas · Kentucky · Louisiana · Maine · Maryland · Massachusetts · Michigan · Minnesota · Mississippi · Missouri · Montana · Nebraska · Nevada · New Hampshire · New Jersey · New Mexico · New York · North Carolina · North Dakota · Ohio · Oklahoma · Oregon · Pennsylvania · Puerto Rico · Rhode Island · South Carolina · South Dakota · Tennessee · Texas · Utah · Vermont · Virgin Islands · Virginia · Washington · West Virginia · Wisconsin · Wyoming

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

Advisors at this firm

user avatar

Alexander F

Series 66

Conshohocken, PA

William Blair

Alexander Fernberger is a financial advisor at William Blair with 15 years of industry experience. He holds a Series 66 designation and previously worked at Raymond James and Associates for eight years before joining William Blair in 2024. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across multiple asset classes and provides proprietary models, access to private funds, and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

James A

Series 66

Chicago, IL

William Blair

James Alverson is a financial advisor at William Blair with 11 years of industry experience. He holds a Series 66 designation and has worked at William Blair since 2021, following eight years at Tiaa. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across equities, fixed income, and alternative strategies, providing proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Spencer K

Series 66

Chicago, IL

William Blair

Spencer Kenney is a financial advisor at William Blair in Chicago, holding a Series 66 designation with two years of industry experience. He previously worked at Northern Trust for seven years before joining William Blair. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs active, research-driven management across multiple asset classes and provides proprietary models, third-party sub-advisers, and access to private funds through its MB Investments Program.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Charles H

Series 66

Chicago, IL

William Blair

Charles Hoban is a financial advisor at William Blair in Chicago, IL, holding a Series 66 designation. He has one year of experience at William Blair and previously worked in educational roles at several institutions, including Wesleyan University and The Lawrenceville School. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across multiple asset classes and provides access to proprietary models, sub-advisory services, and private fund opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

John O

Series 66

Los Angeles, CA

William Blair

John Oliveira is a financial advisor at William Blair in Santa Monica, CA, holding a Series 66 designation. He is part of a large enterprise firm with over 320 advisors. William Blair’s Private Wealth Management division provides discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs active, research-driven management across multiple asset classes and offers proprietary models and access to private funds through its integrated platform.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Kevin E

CFA®, Series 66

Chicago, IL

William Blair

Kevin Eifert is a CFA® charterholder and holds a Series 66 license. He has four years of industry experience and has been with William Blair since 2021. Prior to joining William Blair, he spent eight years in full-time education. William Blair’s Private Wealth Management division offers investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm emphasizes active, research-driven management across multiple asset classes and provides proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Sarah H

Series 66

Northfield, IL

William Blair

Sarah Hayes is a financial advisor at William Blair with a Series 66 designation and two years of industry experience. She has held roles at William Blair since 2021 and previously worked at Texas Christian University and New Trier High School. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm emphasizes active, research-driven management across multiple asset classes and provides proprietary model portfolios and access to private funds through its integrated investment platform.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Scott K

Series 63, Series 65

Itasca, IL

William Blair

Scott Krzeminski is a financial advisor at William Blair with 31 years of industry experience. He has been with William Blair & Company since 2014. He holds Series 63 and Series 65 licenses. William Blair’s Private Wealth Management division provides investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across various asset classes and offers proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Brian E

Series 66

Park Ridge, IL

William Blair

Brian Early is a financial advisor with William Blair, holding a Series 66 designation and 16 years of industry experience. He has been with William Blair & Company since 2011. William Blair’s Private Wealth Management division offers investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across various asset classes and provides proprietary models and access to private funds through its MB Investments Program.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Kelsey S

Series 66

Chicago, IL

William Blair

Kelsey Stella is a financial advisor at William Blair with 11 years of industry experience. She holds the Series 66 designation and has been with William Blair since 2014. William Blair’s Private Wealth Management division offers investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm uses an active, research-driven approach across multiple asset classes and provides access to proprietary models and private investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Ronadev M

Series 63, Series 65

Darien, IL

William Blair

Ronadev Mitra is a financial advisor at William Blair with 27 years of industry experience. He holds Series 63 and Series 65 licenses and has been with William Blair since 2014. Outside of his advisory role, he is a member of Cornerstone Angels, an angel investing network based in Chicago, where he contributes time monthly. William Blair’s Private Wealth Management division serves individuals, foundations, pension, and corporate clients through discretionary and non-discretionary investment management and financial planning. The firm employs an active, research-driven approach across multiple asset classes and offers proprietary models and private fund access to its clients.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Joseph C

Series 63, Series 65

Chicago, IL

William Blair

Joseph Cheop is a financial advisor at William Blair with 26 years of industry experience. He has been with William Blair And Company, L.L.C. since 2004. His credentials include Series 63 and Series 65 licenses. William Blair’s Private Wealth Management division offers investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm emphasizes active, research-driven management across multiple asset classes and provides proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Jill H

CFA®, Series 63

New York, NY

William Blair

Jill Harvey is a CFA® charterholder and Series 63 licensee with nine years of industry experience. She has been with William Blair since 2017 and previously worked at Fieldpoint Private Securities, LLC from 2011 to 2017. Based in New York, NY, she specializes in private wealth management. William Blair’s Private Wealth Management division offers discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across equities, fixed income, and alternative strategies, providing proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Margaret M

Series 66

Chicago, IL

William Blair

Margaret Miller is a financial advisor at William Blair with three years of industry experience. She holds a Series 66 designation and has worked at William Blair since 2021, following a period at American Commercial Bank & Trust. William Blair’s Private Wealth Management division serves individuals, foundations, pension, and corporate clients with discretionary and non-discretionary investment management, financial planning, and wealth services. The firm employs an active, research-driven approach across equities, fixed income, and alternative strategies, offering proprietary models and access to private funds and co-investment opportunities.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
user avatar

Christopher B

Series 63, Series 65

Chicago, IL

William Blair

Christopher Brathwaite is a financial advisor at William Blair with 27 years of industry experience. He has been with William Blair & Co LLC since 2010 and holds Series 63 and Series 65 credentials. William Blair’s Private Wealth Management division provides discretionary and non-discretionary investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across equities, fixed income, and alternative strategies and offers a range of proprietary models and access to private funds and co-investments.

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k) Founder/Business Owner Executive
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