About Sébastien
French
Native or bilingual
Experience
- MABRIHECExecutive DirectorCONSULTING AND AUDITSJanuary 2026 - Today (5 months)Rennes, FranceYou manage a growing SME and feel the need for a real financial director — someone who understands your figures, anticipates risks, and helps you make the right decisions at the right time. But hiring a full-time CFO isn't necessarily what you need today.That's exactly why I created MABRIHEC.I work with SME executives as their outsourced CFO: available, operational from the first few weeks, and fully aligned with your objectives. No promises of a report delivered in six months — I integrate into your daily life, I talk to your bankers, I manage your cash flow, I structure your reporting, and I prepare you for the milestones that truly matter: fundraising, acquisition, transfer, LBO.What my clients appreciate is the clarity I bring quickly. I provide a factual diagnosis, identify priorities, and implement the tools that give you real visibility into your performance. No useless jargon — informed decisions, made at the right time.My profile is atypical, and that's a strength for you: I spent 6 years in auditing on deals up to 1 billion euros in revenue, then 7 years as group CFO under LBO managing 8 companies, orchestrating 6 acquisitions in 2 years, and supporting a capital opening to an investment fund. I have experienced firsthand what you are going through or aiming for.I operate in Brittany and the Paris region, with a flexible level of commitment according to your needs.
- Groupe WEBCOGroup CFO under LBO – Digital Sector €20M RevenueSOFTWARE PUBLISHINGJanuary 2019 - February 2026 (7 years and 1 month)Rennes, France• Financial management of 8 companies (France, Morocco) – member of the Management Committee• Management of 12 people (accounting, management control, treasury, legal, debt collection)• Structuring of the finance department: recruitments, reduction of closing times, reporting & indicators• Optimization of cash flow, working capital, and monthly/annual cash flows• SME M&A specialization (6 external growth operations in 2 years): targeting, due diligence, dataroom, business plan, debt structuring, target valuation negotiation, signing & closing, post-acquisition integration: harmonization of processes/ERP/KPIs, Structuring, mergers…• Investor relations, CEO, and external partners (investment banks, statutory auditors, lawyers, chartered accountants, banking institutions)• IT project management (invoice dematerialization, accounting migrations from Sage to Pennylane, CRM and production management to Salesforce)• Setting up credit lines and leasing agreements• Business development: creation and management of a network of independent agents
- CabinetHead of Audit & Transaction ServicesJanuary 2013 - January 2019 (6 years)• Statutory audit of SMEs and mid-cap companies (EIP mandates, >€1 billion revenue)• Supervision of audit assignments and drafting of summary notes• Internal control and exceptional assignments (valuations, mergers, financial analyses)• Transaction Services: financial analyses, support for mergers and restructurings• Sectors: Industry, Construction, Automotive, Services, Wines & Spirits
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Education
- DSCG2015DSCG
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