Driving Digital Transformation

Our Story

Simstream Group is a rapidly-growing technology and IT consulting company headquartered in Paris. Established in 2000, it employs more than 50 consultants, and has successfully implemented solutions in more than 30 countries in Europe, Africa, Asia and the Middle East. Simstream has an overseas office in Dubai, Sharjah, Kochi and a commercial presence in West Africa. Our team’s unique engineering perspective allows us to deliver cost-effective and creative turnkey IT and network solutions for businesses across diverse industries. Simstream T&D creating innovative, in-house designed and developed digital solutions for business.

Our Vision

Reimagine business with technology.

People are at the core of any business. Ours and yours. Simstream’s human-centric approach delivers creative, flexible and quick solutions.


“ Offer effective technology and it solutions that achieve business objectives within complex environments “

Simstream works closely with your business to best understand your objectives.Our quick response and thorough understanding of market dynamics enable us to create and deliver the ideal technology and IT solutions. We reimagine business and we transform it through technology.

Founders Profile

Gael Marronnier

Chairman, Founder

Gaël Marronnier is a French entrepreneur and engineer. He founded Simstream in 2000. Under his leadership, Simstream has grown into a leading technology and IT consulting company in Europe and Africa, with growing operations in the Middle East.

He started his consulting career with high profile consumer brands such as HSBC and Carrefour, followed by business development for his video streaming services. Gaël’s penchant for engineering and technology made him an expert in IT security, and resulted in the creation of his proprietary event management system SAM (Simstream Alert Management), which is currently in operation at important French clients. For the last 15 years, he has been consulting for most CAC 40 companies in the fields of IT strategy, IT Security and networks. He holds a Master of Science in Engineering from the École Nationale Supérieure d’Arts et Métiers, one of the leading universities in France.


Most businesses think that product is the most important thing, but without great leadership, mission and a team that deliver results at a high level, even the best product won't make a company successful.