General Info
Clemens Kaiser, an angel investor based in Germany, focuses on investments in Messaging and ClimateTech/CleanTech at seed and Series A stages. He has a typical investment range of $5K to $50K with a sweet spot at $25K. Clemens has made recent investments in OroraTech in rounds ranging from $620K to $17M. Additionally, Clemens Kaiser is known for his partnership and collaboration styles developed through his experience as the Managing Director & CTO at KLEO Connect and Chief Program Officer at Rivada Space Networks. He has a background in Programme Development at EUMETSAT and has expertise as a Systemic Coach Agile Scrum Master.
Location:
Country: Germany
Industries: Not available
Investment Regions: EU
Investment Stages: pre-seed, seed
angel-individual
EU
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🤖 AI Activity Report
Status: very-active
AI Reasoning: OroraTech press release dated November 30, 2022 lists Clemens Kaiser as an investor. From that date to the reference date used for classification, the most recent known investment is within more than 2 years; however, additional sources show OroraTech had subsequent funding activity in 2024-2025 (Series B in Oct 2024 and extensions in 2025) and Clemens Kaiser is listed among investors in the 2022 extension; no later individual investment by Clemens Kaiser was found. Given evidence of investment activity associated with OroraTech and mentions in 2022, and more recent OroraTech rounds in 2024-2025 though without explicit new Clemens Kaiser participation found, the classification chosen reflects recent active investing. The startup invested: OroraTech.
Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.
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