Patrikas Feiferas

Principal @ Contrarian Ventures

📍 Lithuania🔄 Updated September 2026💼 8 investments📅 3 years investing🗓 Last invested Sep 2025
VC🌍 LithuaniaInvested this year
8
Total investments
3
Early stage
0
Mid stage
2
Late stage
3y
Years active

Portfolio

8 investments · sorted by recency
All investments
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Mid stage
Late stage
Board Observer
Aug 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.
Investor
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 Observer
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
Nov 2023
In Inion software we believe, that we can achieve more using the same resources. Monitoring is a key, to use more of your solar plant, production line or any other equipment.
Board Observer
Apr 2023
Fusebox is a modular, hardware-agnostic energy operating system that connects assets, tools, and markets into one operating layer you control. It replaces fragmented site control, portfolio tooling, and TSO workflows with a single system, so teams can onboard faster, standardize dispatch, and scale market participation across countries without rebuilding their stack. What we enable (end-to-end): • Control: consistent telemetry + real-time dispatch across mixed fleets • Aggregation: portfolio orchestration with availability, constraints, buffers, and activation logic • Market execution: standardized, TSO-grade workflows from bidding → activation → reporting • Interoperability: open interfaces to integrate partners and keep your existing tools What you keep (you stay in control of): • Your trading desk and market strategy • Your optimizer/forecasting approach (existing or new) • Your commercial model and customer relationships • Freedom to swap tools without re-platforming What Fusebox standardizes (so you can scale): • Asset connectivity patterns and operational data flow • Real-time site control + dispatch coordination • Portfolio availability/constraints and activation logic • Settlement-ready operational outputs and reporting workflows Proven in live operations: Live in 14 European countries with 9 TSO integrations, supporting mFRR / aFRR / FCR workflows. Single deployments manage 1,000+ assets and 300+ MW. Built on 11+ years in flexibility operations. Who it’s for: BRPs, BSPs, utilities, traders, and aggregators managing PV, wind, BESS, and flexible loads. Especially teams who want enabling infrastructure they control, not a dependency.
Investor
Apr 2023
Transforming the worlds land-based value chains into resilient, transparent, and climate-adaptive systems. Marvin enables land based industries to protect their freedom to operate in global markets, mitigate risk and benefit from sustainable, operational excellence. Powered by the latest scientific research, space-borne technology, and artificial intelligence.
Investor
Jan 2023
Our breakthrough sustainable aviation fuel (SAF) technology, aerobrew, will make affordable net-zero aviation a reality. The technology is innovative, highly scaleable and able to tap into future global renewable energy systems efficiently. Starting from renewable feedstocks including green hydrogen, driven by renewable electricity, and sustainably sourced CO2, for example from direct air capture, aerobrew™ provides an efficient route to large-scale production of e-kerosene, overcoming the scale up challenges and high costs of alternative e-fuels technologies. aerobrew™ is also compatible with the biogenic route whereby the carbon required for the process is derived from renewable and sustainable cellulosic biomass which, does not compete with the food chain (wood, miscanthus, etc.). With a high carbon conversion, high selectivity and a high overall SAF yield, aerobrew™ leads to attractive production economics and cost leadership. With a rapidly growing demand for SAF, aerobrew™ stands to contribute significantly to the decarbonisation of global aviation and to support the achievement of net zero 2050 targets.
Experience · 10 entries
All (10)
Investments (8)
Founder (1)
Board (5)
2025
Board Observer
Aug 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.
2024
Investor
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 Observer
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.
2023
Board Member
Nov 2023
In Inion software we believe, that we can achieve more using the same resources. Monitoring is a key, to use more of your solar plant, production line or any other equipment.
Show all 10 entries ↓
Investment activity
2023–2025 · 8 investments
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