PARIS--(BUSINESS WIRE)--The management of YXELIA is pleased to announce today the conclusion of the the acquisition by YXELIA of AVANCE Group in Holland, managed by Mr Ronald STOMP, and specialized in: - The administration, security, optimization and virtualization of enterprise networks.- Applications packaging Services- Managed Services AVANCE, with 20 M€ of annual sales, delivers since its inception an exceptional profitability. Mr Ronald STOMP will bring part of his shares to be associated