Guillaume Barthélémy is Director of PMS West Left Bank within the Office Leasing team at Newmark. He supports users and landlords in their real estate projects with an approach based on listening, transparency and finding tailor-made solutions.
After eight years at CBRE, where he acquired solid expertise in complex transactions and negotiations, Guillaume co-founded and managed Arrow Paris for three years, actively contributing to its establishment and growth in the Paris market.
He stands out for his ability to identify new opportunities, develop sustainable business and build high-performing teams. Recognised for his professionalism and team spirit, he brings to the table his negotiation skills, field expertise and management abilities, while cultivating a strong resilience and a winning attitude in the service of his clients and partners.
A graduate of EDC Paris Business School (Master Grande École – Finance), he combines strategic vision and operational proximity, with a constant focus on creating sustainable value and collective performance.