Steffen Maier (麦義峰)

Investor. Coach. Entrepreneur.

📍 Netherlands🔄 Updated September 2026💼 4 investments📅 6 years investing🗓 Last invested Jan 2025
Operator-angel🌍 Netherlands
4
Total investments
1
Early stage
0
Mid stage
1
Late stage
6y
Years active

Portfolio

4 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
2025
IREN is a leading AI Cloud Service Provider, delivering large-scale GPU clusters for AI training and inference. IREN’s vertically integrated platform is underpinned by its expansive portfolio of grid-connected land and data centers in renewable-rich regions across the U.S. and Canada.
Angel Investor
Oct 2022
Technology has the power to transform how the world’s growing energy demands are met. Kitepower takes wind energy to the next level by replacing rigid constructions with smart controls and lightweight wings to produce cost-efficient and clean electricity. We develop mobile airborne wind energy systems that make green electricity affordable for everyone. Kitepower is a commercial spin-off from the kite power research group of TU Delft and a first time industry applicant, currently funded by the EU Horizon 2020 Fast Track to Innovation Program REACH. When hearing about wind energy most people currently think of conventional wind turbines consisting of a tower with a heavy generator on top to which two or three blades are attached. While this design has grown in acceptance as much as it has is size, it comes with certain downsides. With increasing height, the costs for the tower rise exponentially and a sophisticated infrastructure for transporting the heavy components and assembling the power plant is required. Furthermore, the outermost part of the huge and heavy blades create the most energy. Airborne wind energy make use of this fact and significantly simplifies the design of wind based power generators. The concept of airborne wind energy replaces the tower by a lightweight tether which connects an airborne kite to the ground. Different shapes and materials are possible for the kite, from fixed wings like a glider airplane to completely soft wings as used by surfers. The kite itself is the equivalent to the blade tips in a conventional turbine. It flies in circles or figures of eight to increase the effective wind speed. Power generation with an airborne wind energy system is either realized by small turbines mounted on the wing or by a generator on the ground in a so called pumping concept. By removing the heaviest component parts from the system, this type of power plant is much more mobile in terms of location, and considerably cheaper in construction.
Executive Consultant, Coach and Investor
Jul 2020
Angel Investor and Mentor
Jun 2020
people who kær are people who only want the best for (their) pets. With our effective supplements for prevention and treatment of the most frequent diseases we accompany our four-legged friends from puppy age to senior age and empower them to have a long and happy doggy life. We offer our customers a new level of quality & transparency and redefine the standards in pet care. Our products include supplements supporting our dogs’ joints, digestion and immune system and freeze-dried treats.
Experience · 7 entries
All (7)
Investments (4)
Founder (2)
2025
Investor
2025
IREN is a leading AI Cloud Service Provider, delivering large-scale GPU clusters for AI training and inference. IREN’s vertically integrated platform is underpinned by its expansive portfolio of grid-connected land and data centers in renewable-rich regions across the U.S. and Canada.
2023
Partner Success Manager DACH
Feb 2023
Were on a journey to empower our customers so they reach the sweet spot of optimal pricing and customer experience on their own online channel. Convious is an end-to-end sales & marketing platform powered by Artificial Intelligence that drives online traffic, delivers the best customer experience, and implements dynamic pricing in real time.
2022
Angel Investor
Oct 2022
Technology has the power to transform how the world’s growing energy demands are met. Kitepower takes wind energy to the next level by replacing rigid constructions with smart controls and lightweight wings to produce cost-efficient and clean electricity. We develop mobile airborne wind energy systems that make green electricity affordable for everyone. Kitepower is a commercial spin-off from the kite power research group of TU Delft and a first time industry applicant, currently funded by the EU Horizon 2020 Fast Track to Innovation Program REACH. When hearing about wind energy most people currently think of conventional wind turbines consisting of a tower with a heavy generator on top to which two or three blades are attached. While this design has grown in acceptance as much as it has is size, it comes with certain downsides. With increasing height, the costs for the tower rise exponentially and a sophisticated infrastructure for transporting the heavy components and assembling the power plant is required. Furthermore, the outermost part of the huge and heavy blades create the most energy. Airborne wind energy make use of this fact and significantly simplifies the design of wind based power generators. The concept of airborne wind energy replaces the tower by a lightweight tether which connects an airborne kite to the ground. Different shapes and materials are possible for the kite, from fixed wings like a glider airplane to completely soft wings as used by surfers. The kite itself is the equivalent to the blade tips in a conventional turbine. It flies in circles or figures of eight to increase the effective wind speed. Power generation with an airborne wind energy system is either realized by small turbines mounted on the wing or by a generator on the ground in a so called pumping concept. By removing the heaviest component parts from the system, this type of power plant is much more mobile in terms of location, and considerably cheaper in construction.
2020
Executive Consultant, Coach and Investor
Jul 2020
Angel Investor and Mentor
Jun 2020
people who kær are people who only want the best for (their) pets. With our effective supplements for prevention and treatment of the most frequent diseases we accompany our four-legged friends from puppy age to senior age and empower them to have a long and happy doggy life. We offer our customers a new level of quality & transparency and redefine the standards in pet care. Our products include supplements supporting our dogs’ joints, digestion and immune system and freeze-dried treats.
Show all 7 entries ↓
Investment activity
2020–2025 · 4 investments
202022022120251
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