Premysl Rubes
Investor at Keboola
Premysl Rubes
Investor at Keboola
Prague
Overview
Work Experience
Founder & Managing Partner
2016 - Current
Presto Ventures is a Prague-based VC firm that has been investing in fast-growing tech companies since 2016. We connect frontier technologies, strategic investments, and purpose: to create a safer, more secure future. Presto empowers ambitious entrepreneurs driven to solve the most pressing security and industrial challenges. Our hands-on approach is what sets us apart. Presto helps companies scale rapidly and lends a hand where it matters most – in sales, hiring, and next-round fundraising. With an impressive portfolio of more than 60 startups and backed exclusively by private money, Presto serves as a vital link between the flourishing CEE+ tech ecosystem and major Western markets. In 2024, Presto teamed up with Michal Strnad’s CSG to launch a €150 million fund, Presto Tech Horizons, targeting innovative companies in the security and defense tech space. The fund aims to back dozens of the most promising technological projects from NATO countries and allied nations, becoming one of the world’s largest with this sector experience and expertise.
Investor, Member of the Board of Directors
2022
A complete cloud data platform as a service, enabling data people to collaborate on analytics and automation – from extraction, transformation and data management to pipeline orchestration and reverse ETL.
Investor, Member of the Board of Directors
2019
SaaS cloud-based virtual phone system and PBX for sales and customer service teams. Currently the global sector leader for SME customers, Cloudtalk offers over 40 advanced calling features and integrations.
Investor, Member of the Board of Directors
2020
Leading automated network assurance provider with clients like Airbus or Air France. IP Fabric’s platform helps big corporations monitor, visualize, and secure complex IT networks to reduce the risk of outages or failure.
Investor, Member of the Board of Directors
2020
Oddin's AI solution predicts computer game events to improve betting odds. With the possibility to bet on any game at any time, Oddin increases the profit margin and boosts betting volume for bookmakers.
Chairman of the Board
2017
A unified passenger information platform for airports, railways, ports, and public transportation networks. A pioneer in the secured decentralized audio sector, developing next-gen audio devices.
Investor, Member of the Board of Directors
2019
An integrated office building system designed to provide 21st century smart access, dynamic parking experience, visitor management, and tenant engagement. Sharry turns any building into a premium service.
Investor, Member of the Board of Directors
2019
Heating and photovoltaic marketplace and online SaaS platform that unites technicians, salesmen, experts, and energy producers. Woltair's solution boosts market capacity to accelerate clean energy adoption.
Investor
2022
𝐄𝐗𝐈𝐓𝐄𝐃 AI-driven sales forecasting, inventory replenishment, and industry-standard inventory management SaaS for e-commerce SMEs. Inventoro helps SMEs forecast future sales and manage inventory like the big players.
Investor, Member of the Board of Directors
2023
An AI application that works like a ‘cognitive antivirus’ to protect users' minds while navigating the online space. Elin.ai supports mental wellbeing in the online world and helps defend against online stress.
Education
Master of Engineering (M.Eng.)
2008 - 2011
BSc.
2004 - 2008