Tomas Kemtys

General Partner @ Contrarian Ventures

📍 London, England, United Kingdom🔄 Updated September 2026💼 14 investments📅 7 years investing🗓 Last invested Sep 2025
VC🌍 United KingdomInvested this year
14
Total investments
8
Early stage
0
Mid stage
1
Late stage
7y
Years active

Portfolio

13 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Sep 2025
Bees & Bears is a Green FinTech from Berlin with the goal of facilitating capital to the heart of the green economy. We work with producers and vendors of Clean Tech (green hardware such as energy storage, heat pumps, PV, EV charging, etc.) and allows them to offer embedded financing to their customers. Thereby, producers can switch to a hardware-as-a-service model. Bees & Bears provides a digital platform that integrates into the sales of producers, operates the workflow and data, and bundles the assets. End clients don’t have to pay a high upfront and are charged a monthly rate (leasing or contracting), instead.
Board Member
Jul 2025
sun.store is a disruptive startup in the photovoltaics industry. We provide a truly vertical, solar-oriented trading platform connecting sellers and buyers across European locations.
Board Member
Jun 2025
Cariqa is the first end-to-end payment billing and pricing platform built for EV charging. Designed for charge point operators, the platform reduces cost, simplifies operations, and delivers consistent pricing across all customer channels - driving trust, efficiency and adoption across the EV ecosystem. Cariqa is headquartered in Berlin, with operations across Europe. Cariqa is hiring across engineering, commercial and product roles - check out our career page for more information.
Board Member
May 2024
Beebop’s Power Grid Orchestration Software unlocks grid flexibility within consumer devices and turns them into reliable grid assets. As a single abstraction layer for trading and grid operations, Beebop seamlessly aggregates multiple assets into a dynamic power and cost forecasting interface, allowing real-time and highly precise delivery.
Board Member
Apr 2024
Decade Energy develops energy storage, charging, and software solutions that secures power for electric fleets at the lowest possible cost. Fleet electrification requires large, reliable volumes of electricity, yet across Europe grid capacity is increasingly the limiting factor. Long connection timelines, constrained infrastructure, and volatile energy prices put fleet operations and growth at risk. Decade Energy solves this by securing long-term power capacity directly at depot sites. We design, install, and operate batteries, charging infrastructure, and software as one integrated system—ensuring every kilowatt is used efficiently and when it creates the most value. Our customers secure the power they need tomorrow, today. We bear the full investment, enabling electrification with zero upfront cost, while unlocking new revenue streams through EV charging services and optimized use of site space. Backed by experience supporting major European logistics real estate and transport companies, our team brings together leaders in electric mobility, renewable energy infrastructure, and software. The result are electric truck charging hubs—the #DepotOfTheFuture—powered, profitable, and ready to scale.
Board Member
Feb 2024
Global adoption of low-carbon technology made simple. Our Green Tech Installation Management Platform makes it easy for low-carbon devices to be installed efficiently, safely and compliantly at scale. Simultaneously, were committed to providing a premium end-user experience because we firmly believe that the easier the installation of low-carbon equipment, the greater the adoption. Leveraging smart technology, strategic thinking, and a wealth of industry expertise, weve meticulously crafted an ecosystem that seamlessly integrates people and optimises processes. Our Green Tech Installation Management Platform is the driving force behind electrification, supporting businesses in the ever-evolving energy transition market. To learn more on how Jumptech helps Electrical Installers, Equipment Manufacturers, Automotive Lease & Sales providers, Wholesalers & Retailers, Energy Suppliers, and Charge Point Operators not just compete but also grow and scale in a rapidly changing landscape, visit www.jumptech.eco Jumptech. Join the force accelerating electrification.
Board Member
Sep 2023
Zukunftssicher sanieren und nachhaltig profitieren: Sparen Sie bis zu 80 % Energiekosten mit unabhängiger Beratung und Komplettservice für Sanierung, Umsetzung und Förderabwicklung.
early stageConstruction
Board Member
Nov 2020
With the accelerated development of the various urban mobility offers, access to and use of public space has become a major challenge. Some of these new forms of mobility have incredible potential to make cities more sustainable and equitable, but for their development to be successful, cities and mobility operators need to be able to work together closely and confidently. Vianova platform helps cities and mobility providers better integrate and manage shared, connected, electric, and autonomous transport solutions in the urban space, enabling better use of city infrastructure and promoting safer and more sustainable mobility. Our role as a trusted third party is essential for operators to be able to share their data securely and cities to keep control of their urban space while allowing citizens to benefit from these new means of transportation for more sustainable mobility. We are hiring !! Check out our current job offers and join an exciting ride with us! For any business or partnership inquiry please contact us: hello@vianova.io
Board Member
May 2020
Inbalance grid develops EV charging infrastructure and operates a rapidly growing network of 1,300+ charging points across the Baltics, Central, and Eastern Europe. We offer an all-in-one solution – intelligent software, award-winning charging stations, operation services, and 24/7 technical support. Cloud and dynamic balancing technologies allow quick and cost-effective deployment of sustainable EV infrastructure that can easily scale on demand. Inbalance grid believes in customized charging solutions tailored to the context, demand, and specific circumstances of each location.
Investor
Sep 2019
H2Pro is on a mission to enable affordable green hydrogen at scale by providing the world with the leading next generation electrolyzer. Green hydrogen is the missing piece in the puzzle for achieving net zero, but faces two critical challenges: economic viability and compatibility with renewables. H2Pro is reinventing green hydrogen production to overcome these barriers and deliver the lowest Levelized Cost of Hydrogen (LCOH). H2Pro’s breakthrough electrolysis technology solves the key challenges of traditional electrolysis by decoupling hydrogen and oxygen generation (producing hydrogen and oxygen at separate times). This decoupled process significantly cuts down both capital and operating costs via a streamlined membrane-less reactor design, economical materials, and highly efficient energy usage. H2Pro’s technology is also designed from day one for direct renewable integration, making it the first fit-for-green electrolyzer. Headquartered in Caesarea, Israel, H2Pro was founded in 2019 based on years of research conducted at the Technion. H2Pro has raised over 100 Million USD. It is backed by leading investors and strategic partners, including Bill Gates-founded Breakthrough Energy Ventures, Temasek Holdings, Horizons Ventures, ArcelorMittal, Yara Growth Ventures, OurCrowd, COPEC, Hyundai, Sumitomo Corporation, Extantia, Bazan, Doral and New Fortress Energy. Today, we are a team of 100 people working every day to make green hydrogen affordable at scale. The future of our planet may depend on it. Nature Articles on H2Pros Decoupled Water Electrolysis (DWE) technology: Technologies and prospects for decoupled and membraneless water electrolysis: https://rdcu.be/elIbi Decoupled hydrogen and oxygen evolution by a two-step electrochemical–chemical cycle for efficient overall water splitting: https://www.nature.com/articles/s41560-019-0462-7.epdf?author_access_token=rI0
Investor
Jul 2019
Zoomo is the world's leader in light electric vehicles (LEVs) and after-market servicing, built on the experience of thousands of delivery riders around the world. Engineered in Australia and operating across the United States, the United Kingdom, Europe and Australia, our vehicles are built specifically for durability & performance. Zoomo's flexible rider subscriptions and business services allow tens of thousands of riders around the world to access the best light electric vehicles. Our mission is to sustainably transition billions of urban delivery miles from mopeds, cars and trucks to light electric vehicles.
Investor
Jun 2019
1 hour grocery delivery service! All your city grocery stores in your mobile phone. Just select stores that you like then pick products that you love and we will deliver them in one hour!
Board Observer
May 2019
Chooose builds software to enable the lower carbon fuel value chain. Companies like Alaska Airlines, Air Canada, Delta Air Lines, and Flexport use the Chooose platform to operate and scale their SAF programs and to advance voluntary and compliance carbon initiatives. With offices in Oslo and Miami, we are growing quickly and hiring for a variety of roles. Learn more and explore all of our open opportunities by visiting https://www.chooose.today.
Experience · 20 entries
All (20)
Investments (14)
Board (11)
2025
Board Member
Sep 2025
Bees & Bears is a Green FinTech from Berlin with the goal of facilitating capital to the heart of the green economy. We work with producers and vendors of Clean Tech (green hardware such as energy storage, heat pumps, PV, EV charging, etc.) and allows them to offer embedded financing to their customers. Thereby, producers can switch to a hardware-as-a-service model. Bees & Bears provides a digital platform that integrates into the sales of producers, operates the workflow and data, and bundles the assets. End clients don’t have to pay a high upfront and are charged a monthly rate (leasing or contracting), instead.
Board Member
Jul 2025
sun.store is a disruptive startup in the photovoltaics industry. We provide a truly vertical, solar-oriented trading platform connecting sellers and buyers across European locations.
Board Member
Jun 2025
Cariqa is the first end-to-end payment billing and pricing platform built for EV charging. Designed for charge point operators, the platform reduces cost, simplifies operations, and delivers consistent pricing across all customer channels - driving trust, efficiency and adoption across the EV ecosystem. Cariqa is headquartered in Berlin, with operations across Europe. Cariqa is hiring across engineering, commercial and product roles - check out our career page for more information.
2024
Board Member
May 2024
Beebop’s Power Grid Orchestration Software unlocks grid flexibility within consumer devices and turns them into reliable grid assets. As a single abstraction layer for trading and grid operations, Beebop seamlessly aggregates multiple assets into a dynamic power and cost forecasting interface, allowing real-time and highly precise delivery.
Board Member
Apr 2024
Decade Energy develops energy storage, charging, and software solutions that secures power for electric fleets at the lowest possible cost. Fleet electrification requires large, reliable volumes of electricity, yet across Europe grid capacity is increasingly the limiting factor. Long connection timelines, constrained infrastructure, and volatile energy prices put fleet operations and growth at risk. Decade Energy solves this by securing long-term power capacity directly at depot sites. We design, install, and operate batteries, charging infrastructure, and software as one integrated system—ensuring every kilowatt is used efficiently and when it creates the most value. Our customers secure the power they need tomorrow, today. We bear the full investment, enabling electrification with zero upfront cost, while unlocking new revenue streams through EV charging services and optimized use of site space. Backed by experience supporting major European logistics real estate and transport companies, our team brings together leaders in electric mobility, renewable energy infrastructure, and software. The result are electric truck charging hubs—the #DepotOfTheFuture—powered, profitable, and ready to scale.
Show all 20 entries ↓
Investment activity
2019–2025 · 14 investments
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