What CMS does

CMS is an international commercial law firm founded in 1999 and headquartered in Berlin, Germany. The firm operates as an integrated network of 21 member firms across more than 50 countries, with 90+ offices, over 7,200 lawyers, and 10,000+ staff. CMS provides legal advisory and tax services across 12 industry sectors (Energy & Climate Change, Life Sciences & Healthcare, Automotive & Mobility, Funds, Hospitality/Travel/Leisure, Infrastructure & Projects, Insurance, Aerospace & Defence, Consumer Products, TMC, Private Equity, Private Clients) and 13 practice areas including Corporate/M&A, Banking & Finance, Dispute Resolution, Tax, Employment, and ESG. The firm's client base spans multinational corporates, financial institutions, and government entities, with named mandates including Equinor, Repsol, Amazon, Nestle, BioNTech, Welltower, Raiffeisen Bank International, and Accor.

The firm has embedded AI and legal tech into its service delivery: Harvey AI was deployed firmwide across 50+ countries covering 7,000+ lawyers and staff, CMS Evidence AI supports high-volume document review, and proprietary tools (ESG Compass, CSDDD Navigator, Dawn Raid Assistant, Public Procurement Remedies Toolbox, Know-how Protection) package compliance and regulatory know-how into online products. CMS also operates recurring-revenue digital channels through CMS Expert Guides, Legal Updates subscription, Webinars, and Personalised Updates. Revenue is generated primarily through billable hours, fixed fees, and transaction-based fees for legal mandates, supplemented by subscription recurring revenue from online services. The firm was ranked first by deal count in European M&A in Q1 2026 with 37 transactions (GlobalData) and has held top-tier Legal 500 rankings in Hotels & Leisure since 2004, with CEE representing a core growth engine — over 1,500 M&A deals worth EUR 36 billion in 2025, a 22% increase in deal count year-on-year.

Name

CMS

Legal name

CMS (CMS Legal)

Website

https://cms.law

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

CMS is an international commercial law firm founded in 1999, operating across 50+ countries with 7,200+ lawyers. It provides cross-border legal advisory in corporate/M&A, banking, energy, life sciences, and other sectors for multinational corporates, financial institutions, and government entities.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Legal Services (5411), Offices of Lawyers (541110), Offices of Lawyers (54111), Other Legal Services (54119)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI)

Keywords

• International legal services
• Corporate M&A advisory
• Banking and finance law
• Cross-border dispute resolution
• Legal tax advisory

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices23 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 Advisory Services: CMS generates revenue through providing legal advisory services across multiple practice areas including corporate/M&A, banking & finance, dispute resolution, energy, real estate, tax, and more. Revenue is generated through billable hours, fixed fees for specific matters, and transaction-based fees.
2. Subscription Services: CMS offers subscription-based services including Legal Updates subscription service and CMS Expert Guides access for ongoing legal intelligence.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels6 records

Core offering

CMS is an international commercial law firm providing legal and tax advisory services across 50+ countries through a network of 21+ member firms and 7,200+ lawyers. The firm delivers cross-border legal counsel across 12 industry sectors and 13 practice areas, including Corporate/M&A, Banking & Finance, Dispute Resolution, Tax, Energy, Real Estate, and Employment, supplemented by proprietary legal tech tools and the Harvey AI platform.

Product overview

CMS is an international law firm operating as a platform of 22 member firms across more than 50 countries with over 7,200 lawyers and 10,000+ staff. The firm offers legal services organized by 12 industry sectors (including Energy & Climate Change, Automotive & Mobility, Life Sciences & Healthcare, TMC - Technology Media & Communications, and 8 others) and 13 practice areas (including Corporate/M&A, Banking & Finance, Dispute Resolution, Employment, Tax, and 8 others). CMS supplements its legal services with a portfolio of legal tech tools including the CMS Public Procurement Remedies Toolbox, CMS ESG Compass, CMS Dawn Raid Assistant, CMS Green Trail, CMS CSDDD Navigator, and Know-how Protection. The firm has also integrated the Harvey AI generative AI platform firmwide for contract review, due diligence, and regulatory analysis, and offers online services including CMS Expert Guides, Webinars, and Legal Updates subscription. These tools and platforms work together to deliver legal services with technology-enabled efficiency across the firm's global network.

Differentiator

Problem solved

Functional benefit

Brands

• Harvey AI Integration: AI-powered legal technology platform integrated across CMS operations for contract review, due diligence, and regulatory analysis.
• CMS Expert Guides
• CMS Legal Updates

Products and services

• CMS Public Procurement Remedies Toolbox A specialized online tool helping clients navigate public procurement remedies and bid challenge procedures across jurisdictions.
• CMS ESG Compass A digital tool helping clients track and navigate ESG (Environmental, Social, and Governance) regulations and compliance requirements.
• CMS Dawn Raid Assistant A mobile-first tool providing just-in-time advice during dawn raid inspections for competition authority investigations.
• CMS CSDDD Navigator A tool helping companies navigate the Corporate Sustainability Due Diligence Directive (CSDDD) compliance requirements.
• CMS Green Trail A tool supporting environmental compliance and sustainability reporting requirements for businesses.
• Know-how Protection Tool A tool for managing and protecting organizational knowledge assets and trade secrets.
• Private Placements Questionnaire An automated questionnaire tool for private placement transactions to ensure regulatory compliance.
• CMS Expert Guides Comprehensive expert guides covering legal topics across multiple jurisdictions, available through CMS's online services platform.
• CMS Legal Updates Subscription A subscription service delivering the latest legal updates, commentary and analysis from CMS experts directly to subscribers' inboxes.

Quantifiable outcome

• CMS ranked first by deal count with 37 transactions in European M&A Q1 2026
• +3 more outcomes

Named customers26 records

Segments10 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature7 records

Partnerships

One partnership is on record.

• Harvey AIcoreTechnology or Integration · 10 December 2025CMS expanded Harvey's generative AI platform firmwide across all 21 member firms in more than 50 countries, covering 7,000+ lawyers and staff. Harvey enables efficient work on contract review, due diligence, and regulatory analysis. The expansion built on existing usage of over 1,100 daily active users, representing the largest law firm rollout of Harvey in EMEA by seats.

Scale indicators15 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• DLA Piper: DLA Piper is one of the largest global law firms with 90+ offices in 40+ countries and similar cross-border transactional focus. It directly competes with CMS for multi-jurisdictional M&A, energy, and corporate mandates across Europe and globally.
• Baker McKenzie: Baker McKenzie is the world's largest global law firm by headcount with 80+ offices across 40+ countries, directly comparable to CMS's international network model. Both firms emphasize cross-border capability and sector specializations.
• Clifford Chance: Clifford Chance is a Magic Circle firm with strong European M&A, banking & finance, and energy practices. CMS competes head-to-head with Clifford Chance on large European M&A mandates and project finance deals.
• Norton Rose Fulbright: Norton Rose Fulbright is a global law firm with comparable scale (50+ offices, 7,000+ lawyers) and similar strength in energy, banking & finance, and infrastructure. Both firms share a strong sector-specialized model.
• Hogan Lovells: Hogan Lovells is a global law firm formed by transatlantic merger with 2,500+ lawyers across 40+ offices. It competes with CMS on M&A, life sciences, energy, and TMT matters with comparable sector depth.
• Linklaters: Linklaters is a Magic Circle firm with elite European M&A and finance practices. CMS ranks against Linklaters on top European M&A deals and complex cross-border mandates.
• Allen & Overy (A&O Shearman): Allen & Overy (now A&O Shearman after 2024 merger with Shearman & Sterling) is a Magic Circle firm with deep banking, finance, and M&A practices. CMS competes directly on European and cross-border transactional mandates.
• Freshfields Bruckhaus Deringer: Freshfields is a Magic Circle firm renowned for high-end M&A and dispute resolution. CMS's #1 deal count ranking in Q1 2026 puts it in direct competition with Freshfields on premium European M&A mandates.
• Dentons: Dentons is the world's largest law firm by headcount with 12,000+ lawyers across 80+ countries, also using a polycentric member-firm structure. Both CMS and Dentons compete on global reach and integrated cross-border mandates.
• Squire Patton Boggs: Squire Patton Boggs is a global law firm with strong energy, infrastructure, and corporate practices. It competes with CMS on European energy and infrastructure mandates and shares a similar sector-focused approach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat7 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/CMS_Law_Tax
• LinkedInlinkedin.com/company/cms-law-tax

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

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

M&A

Investments6 records

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

Frequently asked questions about CMS