What William Blair does

William Blair is a private, independent, and 100% employee-owned global financial services firm founded in 1935 and headquartered in Chicago. It operates across five core service lines: Investment Banking (M&A advisory, equity and debt capital markets, leveraged finance, and corporate board advisory across 12 sector verticals); Investment Management (active strategies in U.S. equity, non-U.S. equity, and emerging markets debt distributed through separate accounts, mutual funds, CITs, and SICAVs on $65.0 billion in client assets); Private Wealth Management (high-touch advisory, pre-liquidity planning, family office, and alternative investments for high-net-worth clients on $80.3+ billion in assets); Equities (institutional sales, trading, corporate access, and private shares trading); and Equity Research (sell-side coverage of 700+ companies with themed publications and the William Blair Thinking insights platform).

The firm generates revenue through three primary streams: recurring asset-based management and advisory fees on $145B+ in total client assets, transaction-based investment banking advisory and underwriting fees (1,460+ transactions over five years unlocking $820B+ in client value, including the $86.2B SpaceX IPO), and institutional sales/trading commissions. Pricing is not publicly disclosed and is customized per mandate. Distribution is direct and intermediary-led: a 201-person IB team across U.S. and European offices, a 47-person institutional distribution team with 26+ year average tenure for senior relationship managers, and 139 wealth advisors across 12 U.S. locations, supplemented by strategic alliances with BDA Partners (Asia), Poalim Equity (Israel), and Allier Capital (Australia). As of March 31, 2026, the firm employs 1,950+ people across 30+ offices, has 75% repeat-client rate in investment banking, and holds 12 No. 1 rankings in the 2024 Coalition Greenwich Voice of the Client study.

Name

William Blair

Legal name

William Blair & Company, L.L.C.

Website

https://williamblair.com

Company type

Private

Founded year

1935

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

William Blair is an independent, employee-owned global financial services firm founded in 1935 offering investment banking, investment management, private wealth management, equities, and equity research services across 30+ offices to corporations, financial sponsors, institutional investors, and high-net-worth individuals.

Ownership category

akta.pro rank

Product category

Investment Banking and Asset Management

NAICS

Portfolio Management and Investment Advice (523940), Miscellaneous Intermediation (523910), Portfolio Management and Investment Advice (52394), Open-End Investment Funds (525910)

SIC

Investment Advice (6282), Security Brokers, Dealers & Flotation Companies (6211)

akta.pro primary industry

Corporate Finance & Capital Advisory (BPAHADAB)

akta.pro secondary industries

Equity Capital Advisory (Private Equity Placements, Growth Capital) (BPAHAOAE), Private Banking Advisory & Discretionary Portfolio Management (FSABADAD), Private Banking Cross-Border & International Wealth Services (FSABADAL)

Keywords

• Investment banking services
• Asset management
• Private wealth management
• Equity research coverage
• Institutional sales trading

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices22 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others

Revenue model

1. Investment Banking Advisory and Financing Fees: Revenue generated from M&A advisory, equity and debt financing, leveraged finance, and corporate board advisory services. The firm has completed more than 1,460 advisory and financing transactions over the past five years, unlocking over $820 billion in value for clients as of March 31, 2026. Since April 2021, completed over 490 capital markets transactions representing more than $225 billion in value.
2. Investment Management Asset-Based Fees: Recurring asset-based management and advisory fees on $65.0 billion in client assets across separate accounts, mutual funds, CITs, SICAVs, and SMAs, plus asset-based fees on non-discretionary assets under advisement (AUA). Revenue is generated across U.S. equity, non-U.S. equity, and emerging markets debt strategies.
3. Private Wealth Management Advisory Fees: Recurring advisory and management fees on $80.3+ billion in client assets across wealth advisory, alternative investments, fixed income, lending, cash management, private shares trading, and corporate/executive services for high-net-worth individuals, families, business owners, foundations, and endowments.
4. Institutional Sales and Trading Commissions: Trading commissions, market-making, and corporate access fees from the Equities and Institutional Sales and Trading group, including the annual Growth Stock Conference corporate access business and the Private Shares Trading platform.

Pricing tiers

Go-to-market motion4 records

Distribution channels6 records

Core offering

William Blair is a premier global partnership offering five integrated financial services: Investment Banking (M&A advisory and capital markets), Investment Management (active equity and emerging markets debt strategies), Private Wealth Management (advisory for high-net-worth individuals and families), Equities (institutional sales, trading, and corporate access), and Equity Research (sell-side coverage of 700+ companies). The firm is independent and 100% employee-owned, with $145+ billion in client assets across more than 30 offices worldwide.

Product overview

William Blair is a premier global partnership with expertise across five core service lines: Investment Banking, Investment Management, Private Wealth Management, Equities (Institutional Sales and Trading), and Equity Research. These are not a single unified software product but a suite of integrated financial services offered by an independent, employee-owned firm founded in 1935 with more than 1,950 employees, 145+ billion in client assets, and 30+ offices worldwide. Investment Banking provides M&A advisory, capital markets (public equity, private capital, leveraged finance), and financial sponsor coverage across 12 sector specializations. Investment Management offers active strategies through separately managed accounts, mutual funds (William Blair Funds), collective investment trusts, and SICAV funds, managed by 312 investment professionals. Private Wealth Management delivers wealth planning, pre-liquidity, family office, philanthropy, and alternative investment services to high-net-worth individuals through 139 advisors. The Equities group provides institutional sales, trading, corporate access, and private shares trading. Equity Research provides sell-side coverage of 700+ companies with themed research output including the William Blair Thinking insights platform, the William Blair Thinking Podcast, and the Client Focus publication. Supporting infrastructure includes the William Blair B.V. Dutch affiliate, the Capital Collective initiative, and the Global Community Partners program.

Differentiator

Problem solved

Functional benefit

Brands

• William Blair Investment Management: Active management business offering U.S. equity, non-U.S. equity, and emerging markets debt strategies across mutual funds, separate accounts, CITs, and SICAVs.
• William Blair Private Wealth Management
• William Blair Funds
• William Blair Thinking
• William Blair Capital Collective

Products and services

• Investment Banking Advisory and capital markets services for corporations, financial sponsors, and owner-entrepreneurs globally, including mergers and acquisitions, corporate board advisory, public equity and equity-linked capital markets, private capital markets, leveraged finance, and wealth planning for liquidity events. Has completed more than 1,460 advisory and financing transactions over the past five years, unlocking over $820 billion in value as of March 31, 2026.
• Investment Management Active, 100% employee-owned investment management business offering institutional separate accounts, separately managed accounts (SMAs), collective investment trusts (CITs), mutual funds, and Luxembourg-domiciled SICAV funds across U.S. equity, non-U.S. equity, and emerging markets debt strategies. Manages $65.0 billion in client assets with 312 Investment Management employees.
• Private Wealth Management Wealth management services for high-net-worth individuals, families, business owners, foundations, endowments, and non-profits, including pre-liquidity planning, wealth strategy, family office solutions, philanthropy strategy, cash management, borrowing and lending, merchant banking, alternative investments, private shares trading, fixed income, corporate and executive services, and corporate retirement services. Manages $80.3+ billion in client assets across 139 wealth advisors in 12 office locations.
• Equities (Institutional Sales and Trading) Institutional sales, trading, and corporate access services including Private Shares Trading for hundreds of venture-backed companies, providing greater private market access to qualified clients through alignment of research, sales, and trading capabilities.
• Equity Research Sell-side equity research coverage spanning more than 700 companies under coverage, with themed research published through the Equity Research Rewind publication, and individual analyst coverage across growth sectors including consumer, healthcare, global services, and technology, media, and communications.
• William Blair Funds (Mutual Funds) A lineup of 18 actively managed mutual funds offering a wide range of strategies including U.S. equity, non-U.S. equity, and emerging markets debt, designed to meet investment objectives from current income to capital appreciation.
• William Blair SICAV Funds A series of Luxembourg-domiciled SICAV products providing active management and quality growth investment expertise in U.S., global, and emerging markets for non-U.S. citizens or residents.
• William Blair B.V. (EU Operations) Licensed investment firm authorized and supervised by the Dutch Authority for the Financial Markets (AFM) and the Dutch Central Bank (DNB), headquartered in the Netherlands with offices in Amsterdam and The Hague, providing investment banking and investment management services throughout the EU.
• Pre-Liquidity Planning Specialized wealth advisory for company founders or family business owners considering a business sale, recapitalization through growth funding or private equity investment, or sale of private shares on secondary markets.

Quantifiable outcome

• 1,460+ advisory and financing transactions unlocking $820+ billion in client value over the past five years
• +6 more outcomes

Named customers24 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered minor and flagship.

• Torch PartnersminorOthers · 21 May 2026Rishi Sethi hired as London-based managing director in William Blair's global Technology team; previously served as Head of Fintech at Torch Partners, bringing 20+ years of fintech and financial services experience. Represents William Blair's second senior European hire this year following Robert Engelhardt's appointment.
• BDA Partners (Business Development Asia LLC)flagshipStrategic or Co-development PartnerGlobal strategic alliance extending William Blair's investment banking reach across Asia including offices in Hong Kong, Ho Chi Minh City, Mumbai, Seoul, Singapore, Shanghai, Sydney (Allier), and Tokyo. Provides cross-border M&A advisory across Asia-Pacific markets.
• Poalim Equity Ltd.flagshipStrategic or Co-development PartnerGlobal strategic alliance; Poalim Equity is a subsidiary of Bank Hapoalim in Israel, providing William Blair with Israeli market access via its Tel Aviv office at Alrov Tower, 46 Rothschild Blvd.
• Allier CapitalflagshipStrategic or Co-development PartnerGlobal strategic alliance; Allier Capital is an Australia-based independent financial advisory firm with a Sydney office at Level 7, 2 Bligh Street, NSW 2000.
• Amprius TechnologiesminorStrategic or Co-development PartnerAmprius Technologies presented at the William Blair Growth Stock Conference and co-hosted a webinar on silicon-anode battery applications for UAV operations and defense platforms with Titan Batteries and Leo Flight.

Scale indicators12 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Robert W. Baird & Co. Private, employee-owned global financial services firm with parallel business lines: Investment Banking, Wealth Management, Institutional Equities, and Fixed Income. William Blair's closest structural peer given similar ownership model, mid-market IB franchise, and wealth management scale.
• Jefferies Financial Group: Public mid-market-focused global investment bank and asset manager with Investment Banking, Equities, Fixed Income, and asset management businesses. Directly comparable in mid-market IB franchise and global distribution, though Jefferies is publicly traded and balance-sheet intensive.
• Stifel Financial Corp. Public diversified wealth management and investment banking firm with parallel offerings in Global Wealth Management, Institutional Group, and Investment Banking. Comparable mid-market IB and wealth management profile to William Blair.
• Raymond James Financial: Public diversified financial services holding company with Investment Banking, Global Wealth Management, Asset Management, and RJ Bank. Comparable diversified model spanning IB, wealth, and asset management with strong advisor-led distribution.
• Piper Sandler Companies: Public investment bank and asset manager focused on middle-market advisory, equity capital markets, and fixed income. Highly comparable mid-market IB franchise with strong sector specializations and capital markets execution capability.
• Evercore Inc. Public independent investment banking advisory firm with global M&A and capital markets advisory plus institutional asset management. Comparable as an elite boutique advisor competing for similar mid-to-large cap sponsor and corporate mandates.
• Lazard Inc. Public financial advisory and asset management firm with parallel Financial Advisory and Asset Management divisions. Direct competitor for cross-border M&A advisory mandates and active asset management mandates.

Broad incumbents

• Guggenheim Partners: Private global investment and advisory firm with Investment Banking, Asset Management, and Insurance businesses. Comparable as a privately held diversified financial services firm with institutional scale, though Guggenheim has a more concentrated fixed income and insurance profile.
• Brown Brothers Harriman & Co. Private, partnership-owned global financial services firm with Investment Management, Private Banking, Corporate Advisory, and Investor Services. Most direct structural parallel as a 200+ year old private partnership offering banking, wealth, and asset management globally.
• Perella Weinberg Partners: Public independent advisory and asset management firm focused on M&A advisory, capital markets, and alternative asset management. Comparable as a sponsor-focused independent advisor competing for similar financial sponsor mandates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/166939
• Xx.com/williamblair
• Facebookfacebook.com/WilliamBlairCo

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments27 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about William Blair