What KLEIN does

KLEIN (Klein Rechtsanwälte AG) is an independent Swiss business law firm founded in 1985 and renamed 'Klein' in 2008 in tribute to its founding Managing Partner Thomas Klein. The firm operates from three Swiss offices — Zurich (headquarters), Zug, and Lugano (under the Klein Avvocati brand) — serving both private and corporate clients with complex cross-border legal matters spanning jurisdictions including the USA, Eastern Europe, Russia/CIS, the Middle East, and the Caribbean.

The firm offers 14 distinct practice areas rather than a unified product platform, including litigation and arbitration, international judicial assistance, white-collar crime defense, contracts and transactions, aviation and maritime law, financing and investment, private clients and family office services, construction and real estate, employment law, sanctions law, oil/gas/energy/metals, international trade and export finance, insurance and claims management, and logistics and transport law. Its team comprises graduates from international law faculties speaking 10+ languages with diverse cultural backgrounds, including Senior Counsel who is a Full Professor of criminal law and partners with LLM credentials from NYU, University of Cape Town, and University of St. Gallen. The firm has established niche authority in aviation/yacht law, handling transactions valued in billions of USD, and in sanctions law through academic partnerships with the University of Fribourg.

KLEIN operates a partner-led, bespoke professional services model. Revenue is generated through tailored legal engagements billed on an engagement-by-engagement basis (typical of hourly rates, fixed fees, or retainers for legal services), though no pricing is publicly disclosed. The firm functions as an external legal department for clients, coordinated by dedicated contact partners, with international matters handled in coordination with the Insulaw International network. Its GTM motion is relationship-driven and high-touch: clients access specialized expertise through close partner proximity rather than through marketing funnels or standardized offerings. The firm does not have external investors, a parent company, or public listing, operating as a partner-owned independent practice.

Name

KLEIN

Legal name

Klein Rechtsanwälte AG

Website

https://kleinlaw.ch

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

KLEIN is an independent Swiss business law firm with offices in Zurich, Zug, and Lugano, providing bespoke legal advisory across 14 practice areas including litigation, aviation, maritime, sanctions, and private client services to corporate clients, family offices, and high-net-worth individuals.

Ownership category

akta.pro rank

Product category

Business Law Services

NAICS

Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Corporate & Commercial Law (BPAHAAAA)

akta.pro secondary industries

Family & Private Client (Trusts & Estates) Law (BPAHAAAK), Personal Injury & Insurance Defense (BPAHAAAM)

Keywords

• Swiss business law
• Corporate legal advisory
• Litigation and arbitration
• Private client services
• Cross-border legal counsel

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Legal Services: KLEIN generates revenue through providing legal advisory services, litigation representation, arbitration, transaction support, and consulting across multiple practice areas including international trade, aviation, maritime, corporate, and private client services.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

KLEIN is an independent Swiss business law firm headquartered in Zurich with additional offices in Zug and Lugano, providing comprehensive legal advisory and representation services across 14+ practice areas including litigation, arbitration, aviation, maritime, white-collar crime, sanctions law, and corporate/commercial matters. The firm serves both Swiss and international corporate clients as well as private clients, families, and family offices, leveraging multilingual capability and cross-border expertise since its founding in 1985.

Product overview

KLEIN is an independent Swiss business law firm offering a comprehensive portfolio of 14 distinct legal service lines rather than a unified software product platform. The core offerings span litigation and arbitration, white-collar crime defense, contracts and transactions, aviation and maritime law, financing and investment advisory, private client and family office services, construction and real estate, employment law, sanctions law, oil/gas/energy/metals, international trade and export finance, insurance and claims management, and logistics and transport law. These services are delivered through offices in Zurich and Lugano, Switzerland, supported by a multilingual team speaking more than ten languages, providing bespoke legal solutions for complex international matters primarily serving clients in the financial sector, aviation, commodities, energy, real estate, and luxury asset industries.

Differentiator

Problem solved

Functional benefit

Products and services

• Litigation

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Two partnerships are on record, tiered minor and core.

• Insulaw InternationalminorOthersKLEIN Rechtsanwälte is a member of the Insulaw International network. This membership enables the firm to provide clients with necessary expertise around the globe through the network.
• Institute for International Business Law (University of Fribourg)coreStrategic or Co-development PartnerKLEIN co-chairs conferences on sanctions law in collaboration with the Institute for International Business Law and the University of Fribourg. Firm regularly contributes to knowledge development in this practice area.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Froriep: Swiss law firm with offices in Zurich, Geneva, London and Madrid focused on corporate, disputes and private client work. Comparable to KLEIN as an independent firm serving Swiss and international corporate and HNW clients, with a broader European footprint.
• Vischer: Independent Swiss business law firm with offices in Zurich, Basel and Geneva covering corporate, finance, disputes, IP and tax. Comparable to KLEIN in market positioning and breadth of cross-border practice.
• Homburger: Leading independent Zurich-based business law firm covering corporate, M&A, finance, disputes and regulatory work — directly comparable to KLEIN in serving Swiss and international corporate and HNW clients across complex cross-border mandates.
• Pestalozzi: Independent Zurich business law firm with strong banking, finance, corporate and dispute resolution practices. Closely comparable to KLEIN as a mid-sized Swiss independent firm serving corporate and private clients.
• Bär & Karrer: Major independent Swiss business law firm headquartered in Zurich with broad corporate, finance, tax and dispute resolution practices. Comparable to KLEIN as a Swiss-headquartered independent firm advising on cross-border matters for corporate and private clients.
• MLL Meyerlustenberger Lachenal: Swiss law firm with offices in Zurich, Geneva and Zug providing corporate, finance, disputes and private client services. Comparable to KLEIN in geographic coverage of German and French Switzerland and similar client profile.
• Niederer Kraft Frey: Independent Zurich business law firm with strong corporate, finance, disputes and private client practices. Closely comparable to KLEIN in market positioning, Swiss independence, and service to international corporate and HNW clients.

Broad incumbents

• Lenz & Staehelin: Largest Swiss law firm with offices in Zurich, Geneva and Lausanne and a broader international footprint. Comparable as a Swiss business law firm serving similar corporate and private clients, though materially larger in headcount and geographic reach than KLEIN.
• Schellenberg Wittmer: Zurich and Geneva-based business law firm with strong dispute resolution, banking, corporate and private client practices. Comparable to KLEIN in practice mix and Swiss private/corporate client base, though larger in scale.
• Walder Wyss: Major Zurich-based business law firm with broad corporate, finance, disputes, IP and regulatory practices. Comparable in serving Swiss and international corporate clients, though significantly larger than KLEIN.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/klein-rechtsanw-lte-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 KLEIN