Olivier Guillot

Professional Background
Olivier Guillot is a Partner at Forvis Mazars, specializing in finance transformation and the transport & logistics sector. He joined Mazars in 2015 and was appointed Partner in 2019.
Since 2018, he has been responsible for leading the Transport & Logistics practice, while also contributing to the development of broader finance transformation activities.
Finance Transformation Expertise
Olivier Guillot supports Finance Departments in their transformation journeys, working on:
- Finance function transformation programs
- Organizational design and operating models
- Process optimization and efficiency improvement
- Financial systems and information systems (ERP, reporting tools)
- Data-driven finance initiatives
He also leads a dedicated team of consultants focused on modernizing finance functions across industries.
Sector Expertise
He has developed strong sector expertise in:
- Transport and logistics operators
- Supply chain and distribution networks
- Energy sector organizations
He actively supports clients in improving operational performance, financial processes, and digital transformation within these industries.
Areas of Expertise
- Finance Transformation & Operating Models
- Process Optimization & Organizational Design
- Financial Systems & Data Strategy
- Transport & Logistics Industry Advisory
- Energy Sector Consulting Support
- Digital Transformation of Finance Functions
- Performance Improvement Programs
- Cross-sector Consulting for Finance Departments