Best Energy Tech Companies in State of Hessen, Germany
The 36 best Energy Tech companies in State of Hessen, Germany in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: wind-turbine.com.
Our analysis of 50 Energy Tech companies
$5.9b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2023.
Ranked: Best Energy Tech companies in State of Hessen
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | wind-turbine.com Online marketplace of wind turbines | $6M | 49 mo ago | Funding Raised | Bernd Weidmann Managing Director | 2016 | LeafletChart.jsCentOS+18 | — | — |
| 2 | Enercast Provider of specialized forecasting solutions for renewable energy integration and trading | $3M | 141 mo ago | Series B | — | 2011 | WordPressMySQLSalesforce+15 | — | 1 job opening |
| 3 | Otark Platform providing procurement solutions for renewable energy and power purchase agreements 16Talent top 38%Tech bottom 48%Funding bottom 40%Global bottom 29% All 5 signals ▾Talenttop 38% Techbottom 48% Fundingbottom 40% Globalbottom 29% Marketbottom 25% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Tech: 20 technologies across 4/8 capability areas · Cloud: Amazon Web Services, Cloudflare rank vs industry peers · Fliar Intelligence Index 16/100 | $3M | 24 mo ago | Seed | Jan Quecke Co-Founder & CEO | 2023 | WebflowGSAPAmazon Web Services+17 | — | — |
| 4 | Preventio AI & SaaS-driven building diagnosis solution for buildings | $1M | 53 mo ago | Seed | Frederic Büdel Founder | 2021 | — | — | — |
| 5 | Bettervest Developer of a P2P lending platform for energy efficiency projects | $224K | 128 mo ago | Funding Raised | Marilyn Heib Mitbegründer und CEO | 2006 | WordPressMySQLPHP+26 | — | — |
| 6 | Retroflow Planning and modelling of grid networks | — | 40 mo ago | Funding Raised | Leon Thurner Co-Founder & Managing Director | 2021 | — | — | — |
| 7 | enexion Energy management software provider | — | 202 mo ago | Seed | Theo Parpan Managing Director | 2008 | — | — | — |
| 8 | Benchmark Drives Developer of electric biycle drive systems | — | — | Acquired | Ron Waltz Founder | 1982 | — | 9 patents Patents concentrated in transport & manufacturing processes | — |
Top 7 Energy Tech companies in State of Hessen
#1
Seed · Frankfurt, State of Hessen · founded 2023$2.8Mraised▾
Platform providing procurement solutions for renewable energy and power purchase agreements. It offers a marketplace for standardized and individual power purchase agreements. The platform facilitates the origination, execution, and trading of renewable energy. It provides tools for digital tendering, intelligent comparison, and access to a network of project developers. The platform also offers solutions for managing renewable energy portfolios.
- Sep 2024Seed$2.8M
#2
Funding Raised · Gelnhausen, State of Hessen · founded 2016$5.5Mraised▾
Online marketplace of wind turbines. It is a marketplace for the wind industry, providing a platform for companies to buy and sell wind turbines, components, and spare parts. Users can purchase the wind energy products via the website. The platform aggregates market data and trends, offering insights to the industry.
- Jul 2022Grant (prize money)$1.7M
- Jul 2021Grant (prize money)$3.8M
#3
Seed · Frankfurt, State of Hessen · founded 2021 · 9 employees$1.5Mraised▾
AI & SaaS-driven building diagnosis solution for buildings
- Apr 2022Seed$1.5M
#4
Series B · Kassel, State of Hessen · founded 2011 · 21 employees$3Mraised▾
Provider of specialized forecasting solutions for renewable energy integration and trading. The company offers services that enable more efficient management of energy resources. It delivers accurate predictions to support operational planning and decision-making. The focus is on improving the reliability and cost-effectiveness of energy systems.
- Dec 2014Series B—
- Apr 2012Series A$3M
#5
Funding Raised · Frankfurt, State of Hessen · founded 2006 · 12 employees$224.5Kraised▾
Developer of a P2P lending platform for energy efficiency projects. Every single crowd investor is a party to the loan contract with the project owner. The investor receives an annual payment, consisting of interest and repayment. The platform charges a commission based on the initial investment sum and an annual handling fee from the project owner.
- Jan 2016Grant (prize money)$107.2K
- Mar 2015Grant (prize money)$54.3K
- Jan 2014Grant (prize money)$63.1K
#6
Funding Raised · Kassel, State of Hessen · founded 2021—raised▾
Planning and modelling of grid networks
- May 2023Grant (prize money)—
#7
Seed · Schwalbach am Taunus, State of Hessen · founded 2008 · 13 employees—raised▾
Energy management software provider. It provides an energy management software product. The software offered is called e-EMS which can be used for energy certification, pre-audits, risk management & recertification. Can also be used for prequalification, assessment, prioritization, summary, and approvals of energy efficiency projects.
- Nov 2009Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in Germany
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 1,774 Germany-affiliated papers.
- Karlsruhe Institute of Technology193
- Forschungszentrum Jülich120
- RWTH Aachen University110
- Helmholtz-Institute Ulm98
- Deutsches Zentrum für Luft- und Raumfahrt e. V.92
- Battery (electricity)10→100
- Electrolyte8→97
- Electrochemistry8→79
- Cathode6→64
- Renewable energy1→54
- Battery (electricity)10→181
- Renewable energy11→159
- Electrolyte2→97
- Electrochemistry7→87
- Thermal energy storage2→79
- Battery (electricity)8→70
- Renewable energy3→38
- Electrolyte2→35
- Electrochemistry1→26
- Anode2→23
Where energy storage is researched across Germany
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy storage patents in Germany
Germany energy storage patent filing is accelerating — 3,168 filings from 1,277 assignees (2016–2025), led by Robert Bosch, Siemens, Bayerische Motoren Werke; annual filings 223→391.
- Robert Bosch710
- Siemens633
- Bayerische Motoren Werke455
- AUDI214
- LI TEC Battery189
- Varta Microbattery168
- Daimler140
- Continental Automotive91
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.