RP

Rokas P.

Managing Partner at Contrarian Ventures | Kauffman Fellow

📍 Lithuania, Lithuania🔄 Updated September 2026💼 21 investments📅 10 years investing🗓 Last invested Aug 2025
VC🌍 Lithuania20+ investments
21
Total investments
9
Early stage
4
Mid stage
4
Late stage
10y
Years active

Portfolio

21 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Jul 2024
We build better alternatives to materials that are critical, but insecure. Using the latest advances in AI models and lab automation, altrove designs and builds alternatives to materials we need to reach Net Zero, but for which supply cant meet demand.
early stageManufacturing
Shareholder
Jun 2024
Esame pirmasis Lietuvoje tvariai ir sumaniai veikiantis universitetinis neliečiamojo kapitalo fondas, siekiantis užtikrinti Vilniaus universiteto tarptautinį konkurencingumą. Paramą investuojame. Iš uždirbtos investicijų grąžos finansuojame VU mokslo talentus. Mūsų investicijų valdymas paremtas plačiai diversifikuotu portfeliu, investavimu į skirtingas turto klases, rizikos valdymu ir išskaidymu.
Board Member
Oct 2023
Delfos is a company specially geared towards the advanced management of renewable energy park assets. With customized solutions for the wind, solar and hydro markets, we already monitor more than 14 GW of installed power and have more than 2.5 million assets monitored in Latin America alone Our software can centralize data, detect anomalies and boost power generation performance by providing incisive insights into the behavior of each asset through monitoring, fault prediction and machine learning. It contains customizable modules for each clients needs, and can present different KPIs and reports. With worldwide recognition, winner of Start Up the Future and Startup OLE 22 awards, Delfos continues its journey towards maximum optimization of asset data and more precise maintenance operations with the continuous creation of new modules and solutions. Discover the missing solution for your companys renewable plants now.
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.
Board Member
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.
Board Member
Feb 2022
Were building the future of public transport — convenient, affordable, connected and zero-emission. Our goal is to make it easier and more enjoyable to get from A to B with Ember than it is with your own car. We’re a tech company, not a traditional bus operator. Weve built a platform that coordinates our entire operation – everything from monitoring vehicles and controlling chargers to selling tickets and calculating ETAs. This allows us to use electric buses more intensively than anyone else in the world, leading to a massive emissions reduction. It also helps us provide a much better passenger experience, with innovative features like demand-responsive stops. We’re still small, with 78 coaches and 200 staff. The challenge is to scale this 20x whilst staying lean, increasing efficiency and delivering an even better product experience. We’ve raised equity from some of Europe’s leading climate VCs and are looking for mission-driven individuals who can help take us to the next level.
Investor
Jan 2022
SatVu captures the highest resolution thermal data from space for a safer and more sustainable Earth. The images and short video captured by our satellites show heat variations across the surface of the Earth at a resolution of up to 3.5 m, both during the day and at night. Thermal data at this unparalleled resolution has wide applications, from economic monitoring and national security to climate resilience including urban heat monitoring. The company’s first satellite HotSat-1 launched in June 2023. Two more satellites (HotSat-2 and HotSat-3) will be launched in 2025. Weve delivered a step change in EO sensor and processing technology, and our constellation will achieve global coverage with 10-20 revisits per day. Features: Monitor activity at night: Unlike high-resolution optical, SatVu’s data can see at night. It can also see through smoke. High resolution thermal imagery represents a vital night-time optical substitute. A globally scalable solution: Unlike thermal data captured from aeroplanes or drones, SatVu can capture data from any point on the earth’s surface, including inaccessible or restricted areas, and it can do this in a uniform way. Video capability: SatVu is the only company capable of providing thermal data in the form of both still image and video up to 60 seconds long - allowing you to track movement across the built and natural environment. Our values: Challenge constructively: We leverage the diversity of the team, its thinking and the amazing skillsets of our people as we navigate new territory. Be open: We ensure everyone has the most up to date information to build trust and positive relationships that will help us overcome the challenges we face. Focus fast: We always find a way because accepting and responding to dramatic change effectively is key to our success. Astonish the world: We believe we can show the world what we do in ways that inspire change.
Investor
Sep 2021
BeZero Carbon the carbon ratings agency. Investing in carbon projects is essential to tackling climate change. Independent, risk-based, project level carbon ratings are essential to that investment. Our carbon ratings and risk tools equip world-leading organisations with the knowledge, tools and confidence to make better climate decisions. Our aim is to scale investment in environmental markets that deliver a sustainable future.
Board Member
Sep 2021
Urbio develops generative design software for the key actors of the energy transition. With a focus on improving the efficiency of buildings, Urbio is committed to fight climate change.
Board Member
Sep 2020
Eliq’s purpose is to enable the home energy transition by helping utilities, banks, and smart-home providers to empower their customers to make intelligent and sustainable home energy choices. We drive digital transformation through our SaaS platform that leverages AI and data collected through unique customer interactions to generate insights that inspire and empower customers to join the fight against climate change. The platform enables active customer relationships based on targeted and highly personalised offers, for non-commodity business growth at a transformative scale. We are advocates for the utilisation of open energy data, for an acceleration in the home energy transition. The fight against climate change is one that we need to tackle together, and we believe in creating strong partnerships with organisations that share our values and passion for a sustainable future. We're entering a phase of rapid growth and are looking for people who are passionate about creating high-quality user experiences and want to be part of our fun, friendly and hard-working team.
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
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.
Investor
Apr 2019
In June 2021, Moixa was acquired by Lunar Energy. In acquiring Moixa, Lunar will combine revolutionary new hardware with our proven Gridshare software that manages thousands of batteries across Europe and Japan. Currently, Gridshare is deployed at scale across 35,000 homes via our partner ITOCHU in Japan, supports advanced smart charging services for Honda electric vehicles, and facilitated UPS’s transition to electric vehicle fleets in the UK. Our Gridshare software has led the industry for more than 10 years and significantly advanced smart home charging. Now we have the exciting opportunity to pursue an even greater scale for Gridshare by aggregating larger fleets of batteries across the world to better manage clean energy intelligently for homeowners and businesses.
Board Observer
Oct 2018
LabelFlow builds the open platform for image labeling to build the next big thing with artificial intelligence.
Show all 21 investments ↓
Experience · 25 entries
All (25)
Investments (21)
Founder (2)
Board (11)
2025
2024
Board Member
Jul 2024
We build better alternatives to materials that are critical, but insecure. Using the latest advances in AI models and lab automation, altrove designs and builds alternatives to materials we need to reach Net Zero, but for which supply cant meet demand.
early stageManufacturing
Shareholder
Jun 2024
Esame pirmasis Lietuvoje tvariai ir sumaniai veikiantis universitetinis neliečiamojo kapitalo fondas, siekiantis užtikrinti Vilniaus universiteto tarptautinį konkurencingumą. Paramą investuojame. Iš uždirbtos investicijų grąžos finansuojame VU mokslo talentus. Mūsų investicijų valdymas paremtas plačiai diversifikuotu portfeliu, investavimu į skirtingas turto klases, rizikos valdymu ir išskaidymu.
2023
Board Member
Oct 2023
Delfos is a company specially geared towards the advanced management of renewable energy park assets. With customized solutions for the wind, solar and hydro markets, we already monitor more than 14 GW of installed power and have more than 2.5 million assets monitored in Latin America alone Our software can centralize data, detect anomalies and boost power generation performance by providing incisive insights into the behavior of each asset through monitoring, fault prediction and machine learning. It contains customizable modules for each clients needs, and can present different KPIs and reports. With worldwide recognition, winner of Start Up the Future and Startup OLE 22 awards, Delfos continues its journey towards maximum optimization of asset data and more precise maintenance operations with the continuous creation of new modules and solutions. Discover the missing solution for your companys renewable plants now.
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.
Show all 25 entries ↓
Investment activity
2016–2025 · 21 investments
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