Kleyr Grasso

What Kleyr Grasso does

KLEYR GRASSO is an independent Luxembourg business law firm founded in 1994 and headquartered in Strassen, Luxembourg, structured as a société en commandite simple (limited partnership) under Luxembourg law. The firm operates a full-service legal practice spanning 20+ practice areas, including Administrative and Public Law, Banking & Finance, Capital Markets, Commercial and Corporate Litigation, Compliance/AML, Contract Law, Corporate Governance, Corporate/M&A, Criminal Law, Data Protection & Privacy, Employment & Social, Financial Regulatory, Insurance & Reinsurance, Investment Funds, Private Equity, Real Estate & Construction, Restructuring & Insolvency, Startups/FinTech, and Tax, with dedicated French and German desks. The firm employs nearly 100 people, including 60 independent, multilingual lawyers from diverse cultural backgrounds.

The firm serves international and domestic clients across all industry sectors, including some of the world's largest multinational corporations, leading institutional investors, prestigious private equity houses, and local businesses and professionals. Its client work covers corporate/M&A, investment fund structuring and regulation (UCITS, AIFs), cross-border transactions, employment matters, real estate transactions and construction disputes, financial services advisory, and commercial/civil litigation. Cross-border and multi-jurisdictional matters are handled in collaboration with an established network of correspondent law firms in the world's leading financial and economic centres, and the firm is a member of the MULTILAW international network. Practice-area strength is evidenced by sustained third-party recognition: Band 1 Chambers Europe rankings in Dispute Resolution (18 consecutive years) and Employment (14 consecutive years), Tier 1 Legal 500 EMEA rankings in Dispute Resolution, Employment, and Real Estate & Construction, and ranked status in Corporate/M&A, Investment Funds, Tax, Banking/Finance, Capital Markets, and Private Equity. Notable partners include founders Marc Kleyr (Eminent Practitioner, Dispute Resolution) and Rosario Grasso, Managing Partner François Collot, and a leadership bench including Christian Jungers, Donata Grasso, Luc Courtois, Pierre-Alexandre Degehet, and Mevlude-Aysun Tokbag.

The firm generates revenue through traditional professional-services fee billing: hourly rates set per individual lawyer according to experience, structured under Luxembourg Bar rules based on matter importance, complexity, and outcome, with potential success-fee add-ons in successful litigation matters. Invoices include VAT, internal expenses charged at 10% of fees, and pass-through disbursements, with monthly billing cadence and net-15 payment terms. The firm pursues an enterprise field-sales motion, distributing through direct partner-led client engagements supplemented by correspondent-firm referrals (including inbound referrals from magic circle firms). Client-acquisition channels include LinkedIn presence, multilingual website (EN/FR/DE), email newsletters, hosted annual conferences, participation in industry events such as MIPIM and IBA, and thought-leadership contributions to Chambers Global Practice Guides and Legal 500. The firm is privately held with no external PE/VC involvement; founders and named partners remain central to its leadership and brand.

Name

Kleyr Grasso

Legal name

KLEYR GRASSO

Website

https://kleyrgrasso.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

51–100 employees

Short description

Independent Luxembourg business law firm founded in 1994, employing 60 multilingual lawyers across 20+ practice areas including corporate/M&A, investment funds, dispute resolution, employment, and real estate. Serves international and domestic clients including multinational corporations, institutional investors, and private equity firms.

Ownership category

akta.pro rank

Headquarters

HQ city

Strassen

HQ country

Luxembourg

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Legal Services - Professional Fees: Fees are established according to Luxembourg law and the Luxembourg Bar association rules, taking into account the importance of the matter, its complexity and its outcome. For each lawyer, KLEYR GRASSO charges an hourly rate that is set in accordance with their individual experience. In litigation matters with positive outcomes, KLEYR GRASSO may invoice a success fee on top of time-based fees. Additional charges include VAT, expenses (internal costs at 10% of fees), and disbursements (external costs).

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Kleyr Grasso is a full-service business law firm in Luxembourg providing legal advisory and representation across Corporate/M&A, Investment Funds, Banking & Finance, Capital Markets, Commercial Litigation, Employment, Real Estate, Tax, and Data Protection. The firm serves corporate and financial-sector clients with a multidisciplinary team of approximately 60 lawyers supported by around 100 total employees.

Product overview

Kleyr Grasso is an independent full-service Luxembourg business law firm offering comprehensive legal services across 20 practice areas. The firm's service model is organized as a unified law practice providing integrated legal solutions rather than discrete product modules. Core practice areas include Corporate/M&A, Investment Funds, Banking & Finance, Dispute Resolution, Employment & Social, and Real Estate & Construction, supported by specialized desks for French and German-speaking clients. The firm serves international and domestic clients including multinational corporations, institutional investors, and private equity houses, providing advisory, transaction, and litigation services. All practice areas share the firm's common infrastructure, values, and client service approach, with no add-on or modular product architecture.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate and M&A Legal Services Legal advisory and representation for corporate transactions, mergers, acquisitions, and reorganizations, provided to corporate clients operating in or through Luxembourg.
• Investment Funds Legal Services Legal advisory for the structuring, formation, and ongoing operation of investment funds, including regulatory and compliance matters, for fund managers and financial-sector clients.
• Banking and Finance Legal Services Legal advisory on banking, lending, and finance transactions, including regulatory matters, for financial institutions and corporate borrowers.
• Capital Markets Legal Services Legal advisory on capital markets transactions, securities law, and listings involving Luxembourg entities or structures.
• Commercial Litigation Services Representation in commercial litigation and dispute resolution, including court proceedings and alternative dispute resolution, for corporate clients.
• Employment Law Services Legal advisory on employment and labor law, including contracts, workplace disputes, and regulatory compliance, for employers and corporate clients.
• Real Estate Legal Services Legal advisory on real estate transactions, property law, and related regulatory matters for corporate and institutional clients.
• Tax Legal Services Legal advisory on tax matters, including corporate tax planning and cross-border tax issues, for corporate and financial-sector clients.
• Data Protection Legal Services Legal advisory on data protection, privacy law, and related regulatory compliance, including GDPR matters, for corporate clients.

Quantifiable outcome

• Dispute Resolution and Employment practices ranked Band 1 in Chambers Europe 2026 (18 and 14 consecutive years respectively)
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Correspondent law firms worldwidecoreStrategic or Co-development PartnerExtensive network of correspondent law firms in the world's leading financial and economic centres. Collaborates with distinguished foreign law firms for cross-border and multi-jurisdictional client matters.
• Leading audit and tax firmscoreStrategic or Co-development PartnerCollaborates extensively with leading audit and tax firms to provide comprehensive legal and tax solutions to clients.
• MULTILAWcoreStrategic or Co-development PartnerMember of MULTILAW, an international network of law firms. Participates in MULTILAW annual global conferences and EMEA regional conferences.
• Magic Circle firmsminorChannel Partner/ Reseller/ DistributorForeign magic circle firms recommend KLEYR GRASSO's legal services to their clients seeking Luxembourg jurisdiction expertise.
• LuxRealminorOthersMember of LuxReal, The platform for Real Estate Professionals in Luxembourg.
• House of TrainingminorOthersPartners and lawyers give lectures and training sessions at House of Training on various legal topics.
• University of LuxembourgminorOthersTeaching adjunct at University of Luxembourg; lawyers serve as teaching assistants and lecturers for CCDL (Cours Complémentaires en Droit Luxembourgeois).
• CDDL (Cours Complémentaires en Droit Luxembourgeois)minorOthersLawyers are lecturers for the CCDL and Luxembourg Bar Admission Classes.
• Association Henri CapitantminorOthersMembership in Association Henri Capitant (legal professional association).
• American Bar Association (ABA)minorOthersMembership in American Bar Association for international legal professionals.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Loyens & Loeff: Benelux-headquartered law and tax firm with a significant Luxembourg office covering investment funds, corporate/M&A, banking, and tax — overlapping directly with Kleyr Grasso's core practice mix and client profile.
• Arendt & Medernach: Largest Luxembourg law firm, also an independent player with deep expertise in investment funds, banking, corporate/M&A, and tax. Closest direct competitor on the largest fund-formation and transactional mandates in Luxembourg.
• Stibbe (Luxembourg): Benelux law firm with Luxembourg office covering corporate/M&A, investment funds, banking, dispute resolution, and tax. Direct comparable on practice mix and cross-border European client base.
• Bonn & Schmitt: Luxembourg full-service law firm covering investment funds, banking, corporate/M&A, dispute resolution, and tax — comparable independent peer competing for the same mid- to upper-market Luxembourg mandates.
• Wildgen: Luxembourg-based independent law firm providing corporate, banking, funds, and dispute resolution services. Comparable boutique-style independent competitor within the same Luxembourg legal market.
• Elvinger Hoss Prussen: Leading independent Luxembourg business law firm with comparable full-service coverage across corporate/M&A, investment funds, banking, dispute resolution, and tax. Direct competitor for the same Luxembourg-domiciled institutional investor and corporate client base.
• NautaDutilh: Benelux law firm with a Luxembourg office offering corporate/M&A, investment funds, banking, and dispute resolution services. Competes for the same institutional investor and cross-border deal flow.

Broad incumbents

• Linklaters (Luxembourg): Global magic circle firm with Luxembourg presence focused on investment funds, corporate/M&A, and capital markets. Competes for the highest-value fund-formation and transactional mandates.
• Allen & Overy (Luxembourg): Global magic circle firm with full-service Luxembourg office offering corporate, banking, funds, and dispute resolution capability. Larger, broader incumbent that frequently refers local-law matters to independents like Kleyr Grasso.
• Clifford Chance (Luxembourg): Global magic circle firm with a Luxembourg office providing corporate, banking, capital markets, and funds expertise. Broader incumbent competitor for the largest cross-border mandates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/kleyr-grasso
• Xx.com/kleyrgrasso2361

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Kleyr Grasso