The infrastructure
behind your ambition.

Independent corporate & fund services infrastructure, operated entirely from Luxembourg to support your ambition.

Our Promise

Our Mission

SableRock is an independent firm deeply anchored in Luxembourg’s financial ecosystem, with all operations conducted locally, supporting entrepreneurs, families and institutional investors in setting up and managing their trust, corporate and fund structures.

Why Us

Four commitments that define how we work.

01

Boutique by design

Bespoke structuring for your exact needs, with transparent fees that are easy to track — agility in how we work, and in how we bill.

02

100% Luxembourg

Every mandate is executed locally, ensuring the confidentiality of sensitive information and direct, easy access to the team handling your file.

03

Senior expertise, always available

The office is run by practitioners, not managers. A senior interlocutor is always available to support your business — no handover, no junior layer.

04

Built on innovation

Operations designed around modern technology, so our experts spend their time on what actually matters to you.

Our Values

Confidentiality

Discretion is the foundation of every client relationship and every file we touch.

Client comes first

Your interests are our sole compass. No commercial agenda, no conflicting priorities.

Simplicity

Complex structures deserve humility and pragmatism. We distil them into deliverables that are clear, honest and easy to read.

Accountability

We own our decisions, our advice and our workload — start to finish, without passing the file on.

Our Clients

Entrepreneurs,
Families,
Institutional Investors

looking for a trusted partner.

Whether you are structuring family wealth, launching a fund or seeking a Luxembourg operational partner, SableRock brings senior expertise, full independence and a boutique approach to every mandate.

Our Services

Our Expertise

From non-regulated entities, regulated funds and Management Companies, our expertise allows us to support your ambitions by taking care of your operations.

What We Do

Core mandates · senior expertise concentration

Governance

Directorship, board and committees representation, fiduciary oversight for funds, ManCos and corporate structures.

Independent director · 20+ yrs Luxembourg practice

Regulatory Services

Registered AIFM, CSSF liaison, compliance officer (RC) services, regulatory reporting and regulatory change management.

Local regulator dialogue · ML/TF programmes

Managed Services

End-to-end operational support such as NAV calculation for sub-threshold AIFs, marketing notifications, AML/KYC on investors and investments.

NAV · AIFMD reporting · Onboarding

Investment Advisor Oversight

Independent oversight of investment advisor and sub-advisor activity for AIFMs, RAIF boards and investors (mandate adherence, recommendation review, conflicts and substance monitoring, and ongoing due diligence on delegated functions).

Mandate adherence · Conflicts · Substance

Supporting services

Domiciliation

Registered address, legal seat and corporate presence in Luxembourg for all entity types.

Accounting

Full bookkeeping, financial statements, annual accounts and tax filings in compliance with Luxembourg standards.

Corporate Secretary

Board organisation, AGM management, statutory register maintenance and RCS filings.

Advisory

Strategic guidance on Luxembourg structuring, ManCo selection, fund launch and operational setup — from inception to first closing.

Our Team

Practitioners, not managers.
Senior expertise, from day one.

Why SableRock

Three pillars that define our independence, and how we operate every day.

Total Independence

No affiliation to external investors or banking groups. No existing portfolio to protect. No commercial agenda. Your interests are our sole compass, always.

Integrated CSSF Expertise

Former CSSF-approved Conducting Officers with 20+ years in supervised positions. Direct dialogue with the Luxembourg regulator and a deep knowledge of the local ecosystem, not acquired from a manual.

Boutique, Bespoke

No standard process. No offshore template applied to your situation. Every structure is designed specifically for your assets, investors, objectives and jurisdiction, operations 100% from Luxembourg.

The Team

LG

Loïc Guillermet

Founder & Managing Director

20+ years of experience in Luxembourg’s financial market, including 15+ years in CSSF-supervised roles. Extensive expertise in private markets, fund management and fund administration, with senior leadership experience across AIFM and asset management environments.

Portfolio ManagementRisk ManagementAIFMDAlternative FundsLuxembourg ecosystem
HQ

Henri Questiaux

Head of Technology and Systems Design

I've been programming since I was 9 and self-hosting since I was 14. For 5+ years, I've worked professionally across the stack, with expertise in Kubernetes, web applications, data management, and technology supporting Luxembourg's corporate and fund sector.

Distributed SystemsCompute ClustersSovereign AIPlatform EngineeringFinancial Infrastructure
NS

Nicolas Sansonnet

Partner Business Development - Tax advisory

20+ years of experience across regulated and non-regulated investment structures among which 12 years with a leading Big-4 practice in Luxembourg, advising major fund managers, family offices, sovereign and pension funds on structuring. Strong focus on HNWIs and single- /multi-family offices.

Luxembourg EcosystemTax AdvisoryAlternative FundsPrivate Debt
« My conviction is simple: families and managers deserve a seasoned interlocutor who understands their assets, their constraints and their objectives, not a standardised provider driven by commercial targets. SableRock is built around this idea. »
— Loïc Guillermet, Founder — SableRock

Contact

Request an Introduction

Office

49, Boulevard Prince Henri

L-1724 Luxembourg