Marc Klingen
Co-Founder @ Langfuse
Marc Klingen is a pre-seed investor at Langfuse focused on Clean Energy and Energy Storage.
- Total investments:
- 1
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Marc Klingen invests in
Stages Marc Klingen invests in
Countries Marc Klingen invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Clean Energy 1 (100%)
- Energy Storage 1 (100%)
- Renewable Energy 1 (100%)
- Artificial Intelligence 1 (100%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Celsio
|
Celsio operates as a next-generation electricity provider transforming power market volatility into savings for heat-intensive industries. The company integrates electric heating assets (Power-to-Heat) and thermal storage into existing fossil-fueled industrial infrastructure without disrupting manufacturing processes. Utilizing a proprietarycross-market AI algorithm, Celsio forecasts trading opportunities across short-term electricity and balancing power markets | $1.4M / Pre-Seed / Jul 28, 2026 |
Co-Investors
About Langfuse
Finto solves quote-to-cash (QTC) for sales-led B2B SaaS companies with the promise that 'whatever you quote, Finto bills automatically. Users can use Finto to create flexible sales quotes, convert them into active subscriptions, invoice customers, upsell/cross-sell on top of an existing subscription at any time, reconcile payments, andhave a unified view of each customer
Langfuse Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Clemens Rawert
Co-Founder
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Marc Klingen
Co-Founder
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Maximilian Deichmann
Co-Founder
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FAQ
What does Marc Klingen invest in?
Marc Klingen invests primarily in Clean Energy, Energy Storage and Renewable Energy startups, most often at Pre-Seed stage. Most of the 1 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Marc Klingen?
For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Marc Klingen last invest?
The most recent investment recorded for Marc Klingen closed in Jul 2026. Shizune tracks 1 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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