Stefan Tietze
Angel Investor
Berlin, Germany
Stefan Tietze is a founder of gebraucht.de.
- Total investments:
- 7
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Stefan Tietze invests in
Stages Stefan Tietze invests in
Countries Stefan Tietze invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1.1M–$3.3M
- Pre-Seed
- $1.1M–$3.5M
Investment Focus
Industry
- Software 4 (57%)
- Internet 2 (29%)
- Compliance 2 (29%)
- Service Industry 2 (29%)
- Information Technology 2 (29%)
Stage
- Pre-Seed 3 (43%)
- Seed 2 (29%)
- Angel 1 (14%)
- Series A 1 (14%)
Country
- Germany 6 (86%)
- France 1 (14%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| SEAL Robotics builds modular robots that deliver reliability, safety, and traceability to dock operations, leveraging advanced automation, intelligent control systems, and flexible modular designs to improve efficiency, reduce operational risks, and enable transparent, data-driven management across port and logistics environments. | $2.1M / Pre-Seed / Jan 29, 2026 | ||
| Hyperdrives is a deep-tech engineering company that specializes in super-efficient, highly power-dense, and yet low-cost electric drive systems. | $3.5M / Pre-Seed / Sep 01, 2025 | ||
| FINDIQ is a young company based in the heart of the Ostwestfalen-Lippe industrial zone. We have developed a novel strategy as a software producer to intelligently integrate knowledge management and help solutions for machine service. FINDIQ develops its service solution with the industry, whether for machine makers, operators, or service providers. | $1.1M / Pre-Seed / Jun 27, 2023 | ||
| heyData is a legal tech company. HeyData offers a digitized data protection officer for companies. | $3.3M / Seed / Sep 13, 2022 | ||
| Lumiform is a specialized software for frontline teams to run inspections, audits and checklists at scale across distributed operations. Customers are mid-size and large companies such as multi-site retailers, restaurant chains, logistics fleets, warehouse operators, construction businesses and manufacturers with several plants. They all face thesame challenge: keeping standards consistently high across teams no manager can oversee in person. Lumiform lets teams build digital forms around their standards, capture data on mobile even offline, and resolve identified issues fast. Data turns into instant audit-proof reports and in-depth analytics. It's powerful enough to map the most complex requirements, yet simple to adopt in days. With Lumiform, organizations achieve measurable. improvements in quality, safety and efficiency. Companies like EDEKA, AmRest, Virgin Media and even testing, inspection and certification bodies rely on Lumiform. Rated 4.6 on G2, Lumiform is built in Europe, offering full data sovereignty and GDPR compliance. | $6.8M / Series A / Jun 01, 2022 | ||
| Building the global rule of law is everyone’s responsibility. Jus Mundi democratizes access to all legal resources thanks to a search engine that combines international legal expertise with artificial intelligence | $1.1M / Seed / Apr 01, 2020 | ||
| Superchat provides AI-powered customer communication software that combines messaging, CRM, automation, team chat, analytics, and AI agents in one platform. It helps businesses manage customer conversations across multiple communication channels. | Angel |
Co-Investors
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FAQ
What does Stefan Tietze invest in?
Stefan Tietze invests primarily in Software, Internet and Compliance startups, most often at Pre-Seed and Seed stage. Most of the 7 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Stefan Tietze invest in?
Stefan Tietze typically joins rounds of $1.1M–$3.3M at Seed and $1.1M–$3.5M at Pre-Seed. These are whole funding-round sizes, not Stefan Tietze's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Stefan Tietze took part in.
How do I contact Stefan Tietze?
Public channels for Stefan Tietze include LinkedIn. 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 Stefan Tietze last invest?
The most recent investment recorded for Stefan Tietze closed in Jan 2026. Shizune tracks 7 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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