Clartis Group is headquartered in Brussels. We work with Belgian SMEs, family-owned groups, scale-ups, PE-backed portfolio companies, and international subsidiaries — on strategy, finance, operations, and applied AI.
Partner-led from diagnosis to delivery. Working in English, French, and Dutch.
Multi-entity, multi-language, multi-regulator. The way most serious work in Belgium and the Benelux is actually shaped.
Statutory accounts & BNB / NBB deposits. Belgian GAAP statutory accounts prepared to a standard that survives external audit and supports the annual deposit to the National Bank of Belgium.
BTW / TVA & intracommunity reporting. Monthly or quarterly VAT returns, EC sales lists, intrastat declarations, and reconciliation to the ledger — for purely domestic and cross-border European trade.
ONSS / RSZ & Belgian payroll obligations. Coordination with social secretariats (SD Worx, Securex, Partena, Acerta), expat regimes, and directors' fees handled within Belgian law.
BCE / KBO & UBO register. Company registry updates, beneficial ownership filings, annual general meeting minutes, and director changes coordinated with your legal advisor.
IFRS group consolidation. Multi-entity, multi-currency consolidation for Belgian holdings with international subsidiaries — to a standard that survives lender, investor, board, and audit scrutiny.
Family-owned groups and mid-market businesses with multiple entities, a real operating complexity, and the need for senior finance and operations support beyond what a traditional accountant or fiduciaire provides.
PE-backed portfolio companies that need 100-day plans, value-creation execution, monthly reporting discipline, and fractional CFO support between institutional finance hires.
Scale-ups and venture-backed companies preparing to raise, professionalize, or expand internationally — and that need finance, operations, and AI tooling to scale without breaking.
International groups with Belgian operations needing Brussels-based coordination, local reporting, and a counterpart who works comfortably between Belgian and international standards.
Strategy & Transformation, Finance & Performance, Operations & Workflow, and Applied AI & Software — staffed from our Brussels HQ with international reach.
Our partners include ACCA Fellows and former Big Four professionals (KPMG, PwC, Deloitte) who have also sat in the CFO seat — closing across entities, owning IFRS consolidation, and running cash discipline through restructuring pressure.
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