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Kraftblock
Kraftblock provides an eco-friendly, cost-efficient and highly scalable, modular thermal energy storage system
About Kraftblock
Kraftblock is a pioneering startup that specializes in thermal energy storage systems. Their core technology revolves around a uniquely designed Thermal Energy Storage System, which is both eco-friendly and cost-efficient. This system is highly scalable and modular, making it suitable for large-scale applications. Kraftblock's technology is particularly notable for its use of up to 85% recycled materials and its ability to operate with a variety of heat transfer media, such as air, flue gas, and oil.
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The company primarily serves industrial clients who need to manage waste heat and electrical power more efficiently. These clients are often in sectors where energy consumption and production can vary significantly over time. By using Kraftblock's storage systems, these industries can stabilize their energy usage, thereby improving efficiency and reducing costs.
Kraftblock operates in the renewable energy market, focusing on the critical need to decouple energy production from consumption. This is essential for the global transition to renewable energy sources like solar and wind, which are not always available when energy demand is high. The company's mission aligns with the broader goal of combating climate change by making renewable energy more reliable and accessible.
The business model of Kraftblock involves selling their modular thermal energy storage systems to industrial clients. These systems are designed to be extendable, with containers ranging from 30 to 60 MWh, allowing clients to scale up as needed. The company generates revenue through the sale of these systems and potentially through long-term service agreements for maintenance and support.
In summary, Kraftblock is addressing a critical need in the renewable energy sector by providing a scalable, cost-efficient, and eco-friendly solution for energy storage. Their technology not only helps industries manage waste heat and electrical power more effectively but also supports the global shift towards sustainable energy.
At a glance
- Status
- Operational
- Founded
- 2014
- Headquarters
- Sulzbach/Saar, Germany
- Employees
- 45
- Open positions
- 2
- Dealroom signal
- 89.3/100
- Sub-industry
- Energy Storage
- Sector
- Energy, Sustainable Development Goals, EIC, Thermal Energy Storage, Climate Tech, Stationary Energy Storage, Novel Energy, Other Categories Novel Energy, Circular Economy, EIT Supernovas
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SUPPORT PROGRAM✓Other financing | May 2025 | $0 | — | Third Derivative | ↗ |
| SERIES B✓Equity / VC | Aug 2023 | $22M | $88M | Redstone | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Kraftblock is 9.1K monthly website visits, up 46.8% over the last three months. Kraftblock's team grew 2.3% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed5 investors entered at this stage
- SWSaarländische Wagnisfinanzierungsgesellschaft
Freigeist Capital
Frank Thelen
EIT Climate KIC
European Innovation Council
Series A2 investors entered at this stage
Koolen Industries
Redstone
Other known investors9 additional known investors
Third Derivative
VERBUND X Accelerator
A&G Energy Transition Tech Fund
EnergyLab
Finindus
Plug and Play
RESPOND Accelerator
TechQuartier
Xpreneurs
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Kraftblock on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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