Joerg Rheinboldt
Managing Director @ APX
Berlin, Germany
Joerg Rheinboldt is a pre-seed investor at APX in Berlin focused on Software and Artificial Intelligence. Joerg Rheinboldt is the General Partner of HEARTFELT. He previously worked at M10 GmbH as a Founder and Owner. Joerg Rheinboldt attended the University of Cologne.
- Total investments:
- 27
- Last investment:
- Lead investor:
- 26%
Last updated:
For AI agents: llms.txt
Industries Joerg Rheinboldt invests in
Stages Joerg Rheinboldt invests in
Countries Joerg Rheinboldt invests in
Contacts
| Type | Contact | Validation |
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| Work email | ||
| Personal email | ||
| Work phone | ||
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Investment Focus
Industry
- Software 7 (26%)
- Artificial Intelligence 4 (15%)
- Health Care 3 (11%)
- Information Technology 3 (11%)
- SaaS 2 (7%)
Stage
- Pre-Seed 14 (52%)
- Seed 8 (30%)
- Venture - Series Unknown 1 (4%)
Country
- Germany 9 (33%)
- United Kingdom 3 (11%)
- United States 2 (7%)
- Spain 1 (4%)
- France 1 (4%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Track Titan provides a platform for sim racers offering automated telemetry recording, analysis, and improvement guidance. The service records in-game driving data (on PC or supported consoles), analyzes where racers lose time in corners or braking/acceleration phases, and highlights exactly where performance gains are possible. It also offerscurated setups created by esports drivers and an “Academy” providing learning content, challenges, and personalized news about games and championships. Track Titan presents lap comparisons against reference drivers to help users understand precise differences in driving style or racing line. The company supports a wide array of sims and tracks, aiming to make racing-data analysis more accessible. | $5M / Seed / Dec 04, 2025 | ||
| Rulemapping Group is a rule-based AI platform that enables a level of end-to-end automation for rule-based processes. Automated decision-making solutions for digital legislation, administrative operations, legal procedures, and regulatory compliance. | $13.5M / Venture - Series Unknown / Apr 10, 2025 | ||
| CROWN is modernizing procurement negotiations through ethical eAuctions. | $2.1M / Pre-Seed / Feb 04, 2025 | ||
| Synergi provides smart electricity management combined with demand response in households. | $2.2M / Seed / Oct 08, 2024 | ||
| AI-powered digital platform for management of Alzheimer's and other dementias. | $701.7K / Pre-Seed / May 28, 2024 | ||
| Rototip is a manufacturing Marketplace. | $1.1M / Seed / Feb 26, 2024 | ||
| ContentRadar is a workflow automation SaaS that supercharges marketers in their day-to-day job, allowing them to orchestrate their content marketing and socials in seconds instead of hours. It includes AI-powered post creation for copy and graphics, scheduling, analytics for LinkedIn and X, and collaboration for teams and agencies. Create contentfast and create content that converts. | $730K / Pre-Seed / Sep 01, 2023 | ||
| Notch makes the b2b buyer purchasing process simple and collaborative with a customer-facing sales room designed for speedy deal completion. | $1.2M / Pre-Seed / Jun 26, 2023 | ||
| Duke is a technology company that operates a real time car logistics system. Our Mission is to provide an insane customer experience for car rental. Duke offers on demand rental cars through a 24/7 delivery service. | Seed / May 17, 2023 | ||
| Duke is a technology company that operates a real time car logistics system. Our Mission is to provide an insane customer experience for car rental. Duke offers on demand rental cars through a 24/7 delivery service. | Pre-Seed / May 16, 2023 | ||
| See all 27 investments → | |||
Co-Investors
About APX
APX is Europe’s leading very-early-stage VC. Based in Berlin and backed by Axel Springer and Porsche, we support and partner with the most ambitious founding teams from Europe and beyond - often as their first investor.We invest up to EUR 500K in startups until a series A starting with a quick EUR 50K investment, and within a few months,depending on traction and speed, we can invest further. Each month we invest in new teams who become part of the APX community, counting hundreds of other founders. Since 2018, we have invested in 100+ startups across 20+ industries with founders from 20+ countries together with 100+ co-investors.
APX Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Henric Hungerhoff
Managing Director
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Joerg Rheinboldt
Managing Director
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Luka Dremelj
Mentor
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Theodore Kim
Head of Venture Development and Investor
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Tobias Bauer
Mentor
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FAQ
What does Joerg Rheinboldt invest in?
Joerg Rheinboldt invests primarily in Software, Artificial Intelligence and Health Care startups, most often at Pre-Seed and Seed stage. Most of the 27 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 Joerg Rheinboldt?
Public channels for Joerg Rheinboldt include LinkedIn, X (Twitter) and the website linked on this profile. 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 Joerg Rheinboldt last invest?
The most recent investment recorded for Joerg Rheinboldt closed in Dec 2025. Shizune tracks 27 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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