Praesidium Team

Praesidium is Challenger Stone Group’s ICT Security arm.

Praesidium was founded by a group of IT professionals with the same vision, to help solve the continuously evolving concerns created by the pace at which global digital transformation requires to secure resources and to validate ICT infrastructure’s security stature.

Praesidium has created a global, scalable group of services that addresses those key ICT issues, therefore we supply end to end security testing services, managed SOC and Monitoring Detection and Response (MDR) services with pricing tailored to be competitive in all regions.

Tony Jenkins


With over 25 years in the ICT industry and 10 years specifically in security, initially as an engineer, then moving into sales, this has allowed me comprehend all the various inputs that create complex security solutions. Open to all technologies and viewpoints, my primary driver has always been to secure the organisation’s and business’ key information as the priority.

My sales style has always been collaborative and consultative, aligning with the long term business objectives and providing tangible value and outputs.

Prakash Jain

Head of SOC

Prakash Jain is an ambitious entrepreneur, passionate orator, and an IT professional who has spent over two decades ideating technological integrations, designing online platforms, and building brands that give several ventures growth opportunities. An engineering graduate from Bangalore, Prakash entered the Internet industry as a young, ardent and vivacious individual. He worked with global leaders in the IT industry and the world of internet marketing.

Gaurav Sultaniya


Gaurav is a managing partner of Challenger Stone Group, a global advisory firm focusing on M&A strategy and management consulting based in Monaco. Gaurav has over 15 years of direct experience in the Corporate finance field, and a deep knowledge in the Capital Markets/pre IPO field with extensive investments in the IT sector as well. Since starting Challenger Stone Gaurav has worked directly on more than 150 projects.. It is this experience and contacts in the bleeding edge of European IT technology, and strong financial principals, that gives great stability to  the Praesidium team.

Ovidio Maiuri

CIO & Head of Engineering

Dr Maiuri is a managing partner of Challenger Stone, heading the IT investments from Milan. Ovidio is an expert in Advanced-Technology, investments in Telecommunications, semiconductors and software as a service. He oversees the investments in innovative standards and products, performance management and strategic decision support systems to leading Telcos. His 35 plus years in this field brings a wealth of knowledge and innovation to the Praesidium team, specialising in micro economic models, marketing and industrial intelligence.

Jaco van der Westhuizen

Director of Sales – ANZ

Jaco has a multifaceted understanding of information security across multiple industry sectors based on 20 years of applied experience in the ICT industry. Having worked across service provider environments, government, and large enterprise organizations, both locally and abroad. He has a keen vision of service ethic and is passionate about achieving high standards.