About us

TREASURY SERVICES & CONSULTING SARL was launched in 2014. The company has a unique know-how in organising and restructuring the operational treasury activity. The TSC Finance team has an extensive experience in successfully deploying and monitoring Cash Management and Treasury IT tools.


  • Management of Group Treasury and Finance departments
  • Management of cross borders teams
  • LBO, IPO and acquisitions support
  • Set up of new Treasury platforms and systems
  • Payment factories and offshore Treasury centres development and rollout
  • Tax structuring and compliance
  • Provision of adequate resources and interim managers


Sylvain Tessier

30 years of experience in Financing & Treasury activities and Tax Structuring. Graduated from HEC Paris and London Business School. Kyriba Advanced Fraud Tracking Sales Platinum Plus certified.

Previous positions and mandates:

France: Oberthur Technologies – Idemia, Group Treasurer
France: Danone, Head of Dealing Room
Germany: Diaverum Gmbh, VP Tax and Treasury
Luxembourg: Bertelsmann  Radio/TV divisions, Deputy Finance Director, Treasurer
Spain: BNP Paribas, Spanish subsidiary Deputy Finance Director
Switzerland: Acer Computers, Treasurer EMEA
Switzerland: SITA Equant, Group Treasurer

Naylo Oliveira

30 years of experience as CFO, Financing & Treasury auditor and advisor. Graduated in MBA and BSc Economics.

Previous positions and mandates:

  • Brazil: CFO Management Services And Business Development
  • Brazil: CFO, Manufacturing And Trading Commodity Business
  • Brazil: Senior Finance Consultant
  • Brazil: Executive Advisor to the President, Textile Group
  • Brazil: Finance and Administration Manager
  • Canada: Senior Accountant, Global Mutual Fund Company
  • Canada: CFO Management Services And Business Development
  • Portugal: Senior Finance Consultant
  • Salvador: Senior Auditor at Price Waterhouse Coopers

Kathy Lai-Servant

25 years of experience in finance control and business finance in multinational corporations with customers span across +200 countries. Graduated with a Bachelor degree in public  administration from United Kingdom.

Previous positions and mandates:

  • Switzerland: Financial controller of Mobility business unit, Orange Business Service
  • Switzerland: Senior Finance analyst Corporate finance, Joint-Venture of SITA/Equant
  • France: Senior budget controller in Corporate Finance, SITA
  • Hong-Kong: Finance & Administrative Officer, Cathay Pacific Airways Ltd
  • Hong Kong: Marketing associate, IBM Hong-Kong/China


Jean-Jacques Guy

25 years of experience as Chief Operations Officer and ICT consultant both in the private sector and for international organisations. Post-graduated in Information and Communication Systems Architecture. Kyriba Implementation Gold certified.

Previous positions and mandates:

  • Africa, Eastern and Central Europe, Asia: design, deployment, operations and support of ICT infrastructure, e-government and e-payment solutions. Users training and help-desk services implementation
  • Africa, Eastern and Central Europe: UNCTAD, customs IT systems’ implementation, users training, support organisation
  • Baltic States, Venezuela, Malaysia, Barbados, Lebanon, etc.: UNCTAD, IT audit, support and training consultant
  • Tunisia: World Bank, analysis and specifications of the digitisation of the customs administration
  • Armenia: UNDP, new Judge Recruitment system specification
  • Switzerland, France, Nigeria, Armenia, Ghana, Ivory Coast: Director of IT services companies

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