Mayer Brown

What Mayer Brown does

Mayer Brown is a privately-held international law firm founded in 1881 and headquartered in Chicago, operating through associated legal entities (Mayer Brown LLP in the US, Mayer Brown International LLP in the UK, Mayer Brown Hong Kong LLP, Tauil & Chequer Advogados in Brazil, and a joint law venture with PK Wong in Singapore). The firm provides full-service legal capabilities spanning transactions, litigation, regulatory, and advisory work across practice areas including Antitrust & Competition, Banking & Finance, Capital Markets, Corporate & Securities, Cybersecurity & Data Privacy, Financial Services, International Arbitration, International Trade, M&A, Lending, and Private Credit. It serves major corporations, investment funds, and financial institutions, with named mandates spanning GATX ($4.4B railcar acquisition), Boeing (Spirit AeroSystems transactions), Ford (£4.6B pension buy-in via Legal & General), NGP ($2.5B fundraise), the US DFC ($600M Orion Critical Mineral Consortium investment), and PT Vale Indonesia ($750M ESG-linked loan).\n\nThe firm employs nearly 1,800 lawyers globally (736 partners, 871 associates per its public directory) across 21 offices in the Americas, EMEA, and Asia-Pacific, with London (303 lawyers) functioning as a European hub alongside the Chicago headquarters (378 lawyers). Its technology stack incorporates third-party AI platforms — Harvey AI and Microsoft Copilot — layered over a firm-wide GenAI training curriculum launched in April 2026 to equip lawyers with advanced AI skills, responsible-use protocols, and practice-specific training.\n\nMayer Brown's revenue model follows the traditional professional services structure: client fees generated through billable hours for transactional, litigation, advisory, and ongoing counsel work, supplemented by fixed fees for defined-scope matters. Pricing is quote-based by engagement with multi-year contracts typical for sophisticated enterprise clients; no public fee schedule is published. The GTM motion is enterprise field sales through partner-led client relationships, with growth achieved via lateral partner hiring to strengthen practice areas and geographic expansion into priority markets including Houston, Frankfurt, London, Tokyo, and broader Asia-Pacific.

Name

Mayer Brown

Legal name

Mayer Brown

Website

https://mayerbrown.com

Company type

Private

Founded year

1881

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Mayer Brown is a private global law firm founded in 1881, operating 21 offices across the Americas, EMEA, and Asia-Pacific with nearly 1,800 lawyers serving major corporations, investment funds, and financial institutions on complex transactions, litigation, and regulatory matters.

Ownership category

akta.pro rank

Product category

International Legal Services

NAICS

Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

White-Collar Defense & Investigations (BPAHAAAJ)

akta.pro secondary industries

Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI), Private Credit — Litigation / Legal Finance (FSAHAJAL)

Keywords

• International legal services
• Corporate legal advisory
• Mergers and acquisitions
• Litigation and arbitration
• Capital markets law

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices21 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Legal Services Fees: Traditional law firm revenue model based on client fees for legal services. Revenue generated through billable hours for transactional work, litigation representation, advisory services, and ongoing counsel. Fee structures include hourly billing, fixed fees for specific matters, and potentially contingency arrangements in select litigation matters.
2. Advisory on Complex Financings: Advisory fees from representing clients on significant financing transactions including syndicated loans, critical mineral investments, and infrastructure projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Mayer Brown is a global law firm providing cross-border legal advisory, transactional, litigation, and regulatory services to corporations, financial institutions, and investment funds. Its core offerings span practice areas including Corporate & Securities, Mergers & Acquisitions, Banking & Finance, Capital Markets, Litigation & Dispute Resolution, International Arbitration, Antitrust, Cybersecurity & Data Privacy, and Private Credit, delivered through 21 offices worldwide. Services are scoped per engagement with hourly, fixed-fee, or contingency billing structures.

Product overview

Mayer Brown is an international law firm providing legal services across multiple practice areas including Antitrust & Competition, Banking & Finance, Capital Markets, Corporate & Securities, Cybersecurity & Data Privacy, Financial Services, Global Investigations & White Collar Defense, International Arbitration, International Trade, Lending, Litigation & Dispute Resolution, Mergers & Acquisitions, and Private Credit. The firm serves industries such as Fintech, Global Energy, Insurance, Funds & Investment Management, Projects & Infrastructure, and Technology. Mayer Brown does not offer commercial software products; it provides legal advisory services.

Differentiator

Problem solved

Functional benefit

Products and services

• Antitrust & Competition

Quantifiable outcome

• Record-setting 2025 year with 312 deals valued at nearly $159 billion
• +2 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core.

• Harvey (AI Platform Provider)coreTechnology or Integration · 14 April 2026Mayer Brown utilizes Harvey AI platform as part of its broader technology investment strategy alongside Microsoft Copilot to deliver enhanced AI-supported legal services to clients.
• Microsoft CopilotcoreTechnology or Integration · 14 April 2026Mayer Brown utilizes Microsoft Copilot alongside Harvey AI as part of its technology platform strategy to equip lawyers with advanced AI skills for enhanced client service delivery.

Scale indicators8 records

Recent moves6 records

Expansion highlights3 records

Direct peers

• DLA Piper: One of the largest global law firms by headcount with a similarly distributed office network across the Americas, Europe and Asia, competing on the same cross-border corporate, finance and technology mandates targeting multinational clients.
• Clifford Chance: Magic Circle firm with similar global reach and a particularly strong banking, finance and capital markets practice; directly competes on the cross-border financings and M&A mandates Mayer Brown advises on.
• White & Case: Elite global law firm with a comparable mix of M&A, capital markets, project finance and international arbitration practices; competes for the largest cross-border deals and complex financial services mandates.
• Kirkland & Ellis: Elite global firm dominant in private equity and M&A, competing with Mayer Brown on large-cap transactions, financings and corporate restructuring mandates for financial sponsors and major corporates.
• Skadden Arps: Elite US transactional firm with strong M&A, capital markets and litigation capabilities; competes for the largest US corporate mandates and cross-border deals where Mayer Brown is also positioned.
• Baker McKenzie: Largest global law firm by geographic reach (80+ offices) competing directly on cross-border M&A, banking & finance and international trade — the same multi-jurisdictional mandates Mayer Brown serves for Fortune 500 clients.
• Hogan Lovells: Global full-service law firm of comparable scale (roughly 2,500+ lawyers across the Americas, EMEA and Asia-Pacific) with similarly diversified transactional, regulatory and litigation practices competing head-to-head on cross-border M&A, finance and energy mandates.
• Latham & Watkins: Top-tier US-headquartered global firm known for elite M&A, capital markets and finance practices, regularly competing with Mayer Brown on the largest US and cross-border transactions and financings.
• Norton Rose Fulbright: Global full-service firm with comparable headcount and a similarly strong banking, finance and energy practice; competes directly on the same cross-border lending, project finance and infrastructure mandates Mayer Brown advises on.
• Allen & Overy Shearman (A&O Shearman): Magic Circle firm merged with elite US firm Shearman & Sterling, creating a global competitor with strong finance, capital markets and disputes practices; directly competes with Mayer Brown on cross-border M&A and financings (recently hired from Mayer Brown in Tokyo).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Mayer_Brown
• Facebookfacebook.com/mayerbrown
• LinkedInlinkedin.com/company/mayer-brown

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Mayer Brown