iSIZE is a deep-tech company specialising in deep learning for video delivery. It comprises members holding PhDs in video signal processing, machine learning and advanced networking systems, including university professors in these areas. Advanced machine learning is beginning to disrupt content and iSIZE believes it will enable such advanced technologies to enter the market in a manner that is backward compatible to existing video encoding and transport standards.


Sergio Grce, MSc

CEO & Founder

Sergio Grce holds an MSc in Investment Management and a First Class Hons BSc in Economics. During his 12-year investment banking career, Sergio worked for some of the largest investment banks, including Merrill Lynch, Nomura, Royal Bank of Scotland and Jeffries. In 2016, through Sergio’s strong interest in AI technologies, as well as its applications for video imaging, art and gaming, iSIZE was formed utilising Sergio’s leadership, ability in bringing a strong network and teams together, leading both technical and commercial operations.


Yiannis Andreopoulos, PhD

CTO & Co - Founder

Yiannis Andreopoulos has 20 years’ experience in video coding and machine learning, with 150+ research papers, several patent applications, 10 contributions to JPEG/MPEG standards and extensive engagement with industry in consulting and advisory roles. As CTO of iSIZE Technologies, he is dedicated to challenging the video delivery industry to see how deep neural networks can enhance and accelerate existing video coding standards for internet video.


Jasna Vicentijevic


Jasna Vicentijevic brings 15 years’ experience in leading large scale business transformations, technology implementations, operational excellence. Jasna worked for multiple fortune 500 companies, across geographies, including Trane Technologies, Deutsche Post DHL, Electrolux. As a COO of iSIZE, she is committed on executing the business strategy, setting up strong foundations and supporting the business growth.

iSIZE Advisors

We work with several industry experts that help us understand the current market trends and problems faced by the major players in the media and entertainment industry


Paul Massara,

Board Advisor, iSIZE Technologies

Paul Massara has extensive experience in the energy and service sectors in Europe and North America. He has held a number of senior roles in the energy industry including as UK CEO of RWE NPower, and at Centrica PLC where he was on the executive committee. Paul is also an Advisor to the Board of Electron, Adviser to Habitat Energy, a member of the Committee on Fuel Poverty advising the UK Secretary of State for Energy, and Chair of Medicinema, a charity that builds cinemas in hospitals.


Charles Conn,

Board Member, iSIZE Technologies

Charles Conn is the best-selling author of Bulletproof Problem Solving: The One Skill That Changes Everything. He was CEO of a large UK venture firm, founding CEO of Ticketmaster-Citysearch and continues to co-manage a private investment partnership, Redjuice Capital. Earlier in his career, Charles was CEO of the Rhodes Trust, senior advisor the Gordon & Betty Moore Foundation, and a partner of McKinsey & Company. He sits or has sat on many company and nonprofit boards, including Patagonia and the Mandela Rhodes Foundation in South Africa.


Chris Wade

Board Advisor, iSIZE Technologies

Chris is a Cofounder and Partner at Isomer Capital, a fund of funds focused exclusively on European venture capital in digital technologies. He is on the board of technology companies Calastone recently acquired by Carlyle and Machines with Vision, and previously Ultrasoc ( acquired by Siemens ) Magic Pony Technologies, which was acquired by Twitter. Chris was a Venture Partner 2014-2018 at Octopus Ventures. He was one the original advisors and Venture Partners at Entrepreneur First. Chris was the founding director of the Venture Capital Unit for the UK Government where he promoted UK VC and direct investment opportunities to investors in the US and Asia, successfully attracting over $1B.


Pam Fisher, MBA,

Executive Director at The Media Institute

Pam is Executive Director of The Media Institute and an experienced business innovator with an extensive background in digital media business models, markets and technologies. She has led successful technology start-ups in the UK and US, one resulting in a full listing on the London Stock Exchange. She has consulted with 100+ companies such as BAFTA Reuters and the BBC in the field of M&E technology and business strategy and has an MBA from London Business School.


Mitch Askenas,

Media and Technology Executive at Comcast Technology Solutions

Mitch is a high growth oriented media & technology executive with 20+ years of experience at early stage and large companies, launching profitable new businesses, driving strategy & revenue growth. A regarded expert in all things OTT and intersection of media and technology. Industry Expertise: Entertainment, Broadcast & Media, OTT, SaaS, Digital TV, Digital Marketing, Mobile, e-Commerce, Social Media, Business Strategy, Internet of Things (IoT).