Joern-Carlos Kuntze

Co-Founder Extantia Capital | Venture Capital | Endurance Athlete |

📍 Berlin, Berlin, Germany🔄 Updated September 2026💼 6 investments📅 12 years investing🗓 Last invested Aug 2025𝕏 @upgrade_to_unlock
Operator-angel🌍 Germany
6
Total investments
5
Early stage
0
Mid stage
1
Late stage
12y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Member
Aug 2025
Global regulators are mandating a $5 trillion transition from diesel to electric fleets by 2040—an impossible demand in a fragmented, undercapitalized market. NexDash solves this by building the world’s most advanced freight infrastructure: autonomous, zero-emission, and orchestrated by AI, robotics, and embedded capital.
Board Member
Sep 2024
Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen. Unser Team aus kompetenten Installateuren und Elektrikern kümmert sich dabei um alles rund um die Installation einer Wärmepumpe. Von der Antragstellung der KfW-Förderung über den Einbau bis zur Wartung - wir bieten unseren Kunden ein Rundum-sorglos-Paket für den Heizungswechsel. Deutschlandweit ohne Aufpreis!
Board Member
Nov 2018
fliit – Joining forces in food logistics We are a young and diverse team with years of industry experience, founded with the ambition to disrupt the logistics industry, in Germany and globally. Our goal is to make food logistics easy and efficient and to bring peace of mind to shippers and carriers. Therefore, we build a platform that connects both for optimal capacity utilization, increased flexibility and transparency. We ensure transparency and performance through access to dashboards with tracking and all essential KPIs. Thereby, we deliver one central integration for our clients that allows them to effortlessly organize their logistics and to maximize their operations'​ performance.
Board Member
Dec 2017
GA Drilling with its patented PLASMABIT & ANCHORBIT technology is the solution for a local and independent source of electricity, heating, clean water & food production. We provide scalable, modular, solutions for zero-carbon emissions energy production. Geothermal energy is the only renewable source of clean & baseload energy, available 24/7/365 rain or shine. PLASMABIT brings a significant reduction in operational time & cost savings, drilling faster, deeper, & cheaper through any material, including hard rock and steel. PLASMABIT’s utmost potential is to unlock ultra-deep geothermal power almost anywhere globally. This will have potential to replace all fossil fuel energy generation & a massive positive impact on climate change. The technology is the result of years of R&D, with registered 23+ patents, supported by a full-time team of 70+ engineers and researchers, industrial funding, investors, 20+ EU research grants and strategic technical development partnerships with drilling industry leaders. If you would like to be part of our team and believe “Our Values”, we would like to hear from you. We Believe in: Trust * Giving and receiving trust is fundamental for us. Creativity * We always think big and seek ways which others dont. Exceptionality * We are the best in things that matter. Courage * Striving for success, learning from failures, & getting through anything. Ownership * Personal accountability for our own actions & results. We offer a fascinating and exciting opportunity for experienced professionals to continue to deliver this unique disruptive innovation to market. We seek highly professional and enthusiastic individuals with an adventurous spirit. Interested? Contact career@gadrilling.com or visit |www.gadrilling.com|
Board Member
Jan 2017
At Conny we are building a universal Justice-as-a-Service (JAAS) legal tech platform to enforce consumer rights across Europe – especially when going to a lawyer is not worth the hassle. With our first brand, wenigermiete.de, we are disrupting the way tenants enforce their rights against landlords: it’s convenient, risk-free and affordable! Currently, we are gaining a lot of traction with our flagship product rent control (Mietpreisbremse) where we already helped thousands of tenants in Germany to significantly reduce their monthly rent.
early stageLegal Services
Board Member
Jan 2014
Sensorberg is an innovation-minded company that has developed intelligent hardware and software for digitizing and automating all types of buildings, particularly in Self- Storage, Coworking, and Office Spaces. We believe that a building is not just a concrete building but a place where people spend more than half of their lives. Therefore, the functionality of a building should be adapted as much as possible to the requirements and needs of its users. The key to success is to embark on the path of digitalization, which begins with implementing an intelligent and reliable access system that should provide users with the highest level of security, comfort, and productivity while enabling operators and owners to manage and use their buildings with maximum efficiency.
Experience · 11 entries
All (11)
Investments (6)
Founder (3)
Board (6)
2025
Board Member
Aug 2025
Global regulators are mandating a $5 trillion transition from diesel to electric fleets by 2040—an impossible demand in a fragmented, undercapitalized market. NexDash solves this by building the world’s most advanced freight infrastructure: autonomous, zero-emission, and orchestrated by AI, robotics, and embedded capital.
2024
Board Member
Sep 2024
Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen. Unser Team aus kompetenten Installateuren und Elektrikern kümmert sich dabei um alles rund um die Installation einer Wärmepumpe. Von der Antragstellung der KfW-Förderung über den Einbau bis zur Wartung - wir bieten unseren Kunden ein Rundum-sorglos-Paket für den Heizungswechsel. Deutschlandweit ohne Aufpreis!
2022
Co-Founder
Oct 2022
Smart SelfStorage Solutions for Private and Business Customers
early stageWarehousing
2020
Co-Founder & Partner
Sep 2020
Extantia is a venture capital firm backing pioneers in climate. As a leading climate tech generalist, the firm’s investment strategies — Extantia Flagship and Extantia Allstars — are dedicated to supporting climate-focused companies and venture funds. Founded in 2020 and headquartered in Berlin, the firm manages approximately €300M in AuM. Extantia Flagship directly invests in software and hardware solutions that address large, near-term market opportunities with the power to redefine industries. It focuses on Seed to Series A rounds across Europe, with initial tickets ranging from €1-5 million.
2018
Board Member
Nov 2018
fliit – Joining forces in food logistics We are a young and diverse team with years of industry experience, founded with the ambition to disrupt the logistics industry, in Germany and globally. Our goal is to make food logistics easy and efficient and to bring peace of mind to shippers and carriers. Therefore, we build a platform that connects both for optimal capacity utilization, increased flexibility and transparency. We ensure transparency and performance through access to dashboards with tracking and all essential KPIs. Thereby, we deliver one central integration for our clients that allows them to effortlessly organize their logistics and to maximize their operations'​ performance.
Show all 11 entries ↓
Investment activity
2014–2025 · 6 investments
2014120172201812024120251
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