Top 5 Renewable Energy VC (Venture Capital) Funds in Estonia in May 2026

Lemonade Stand is a VC fund that focuses on early stage B2B investments in Baltic and East European founders no matter the HQ location. Investing €25-300K in strong teams, technology or traction.

Investment focus

Software, Artificial Intelligence, FinTech
Seed, Pre-Seed, Funding Round
Estonia, Lithuania, India

Portfolio highlights

Esgrid — Esgrid provides value-chain sustainability management solutions to medium-sized businesses and financial institutions.
Ligence — AI Automated Echocardiography - Artificial intelligence-powered automated heart ultrasound echo lab system.
Soldera — Soldera enables renewable energy producers to earn additional income through an automatic guarantee of the origin trading system.

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We are a seed stage venture capital fund based in the Baltic states, backing ambitious Baltic founders anywhere in the world.

Investment focus

Software, Information Technology, Apps
Seed, Pre-Seed, Series A
Estonia, Latvia, Lithuania

Portfolio highlights

FanSifter — FanSifter is a fan data management platform that leverages machine learning to help rights holders in music, entertainment, and sports increase tickets, music, merch, experiences, and sponsorships sales.
Giraffe360 — Giraffe360 is game-changing subscription product for real estate companies to streamline professional quality photography and high accuracy floor plan creation.
RecruitLab — Teamdash's built-in recruitment, applicant tracking, and marketing features give you the focus you need to achieve the impossible. Here's how.

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Grid.vc is the first investor in superb teams disrupting the energy business.

Investment focus

Energy, Renewable Energy, SaaS
Seed, Pre-Seed, Funding Round
Finland, Estonia

Portfolio highlights

Bioreactor — Bioreactor is a revolutionary technology that converts bio waste into clean energy through biomass gasification. It's a sustainable, efficient and cost-effective solution that addresses energy poverty, energy security and climate change. With the use of the latest technology in computational fluid dynamics, cloud-optimized digital twin anddeep learning algorithms, the Bioreactor can optimize its performance in real-time over a wide range of fuels and operating conditions. The Bioreactor is a game changer in the energy industry, it can reduce greenhouse gas emissions, drastically lower energy costs, and help to alleviate energy poverty on a national scale.
Safegrid — Smarter sensors for a smarter grid
Vensum Power — Revolutionizing power conversion. More power in same package, less energy waste and low maintenance.

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Our focus changes in the same pace with the surrounding world. If the main concern of the mankind is the food and energy supplies and polluted living environment, the current activities of the companies of Vestman Group thus also focus on these topics. Our vision is to be a sustainable forest manager on one of the Estonian largest private forestpossession. We lease out arable lands, give advice and help to find the best solution based on the partner’s needs. We are starting our journey in Eco-friendly Technology to strengthen our Circular economy way of doing things even further. We value the world we live in and the resources we use in our business.

Investment focus

Water, Software, CleanTech
Pre-Seed, Seed, Funding Round
Estonia

Portfolio highlights

KWOTA — Kwota offers digital validation and trading services for recycled material CO₂ emissions.
Spacedrip — Spacedrip develops automated water treatment and reuse systems that recycle wastewater back to pure usable water with minimal maintenance. Our systems provide off-grid water without the need for centralized sewage/water solutions.
RAIKU — RAIKU is a cleantech startup that produces 100% natural packaging material that has also great looks and shock absorption - most importantly, it gives 15-20 times more volume to its raw material making it one of the most resource efficient material uses in the world with high margins. Both the production is and products are clean making no harm tonature. RAIKU has raised over 1.2mln€ in the pre-seed stage, built a team of over 10 people, its own IP and clients are already using its packaging material. This material will up-end the 1 trillion € packaging sector.

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