Registered 15. juuli 2026, primary activity: Research and experimental development on natural sciences and engineering. Main place of business in Nõmme linnaosa, Tallinn, Harju maakond.
Altenburg Infra OÜ is connected to 11 other companies through 1 person who hold a role here and elsewhere. The strongest tie runs through Taavi Madiberk (11 companies).
| Company | Role | Reg. code |
|---|---|---|
| Car Bond OÜ | Shareholder 100%Founder | 17334490 |
| Frankenburg Technologies OÜ | Shareholder 28%FounderSupervisory board member | 16901751 |
| Optical Reality OÜ | Board member | 17568383 |
| OÜ Pronto Eesti | Board member | 11683775 |
| OÜ Skeleton Technologies Group | Board member | 12421505 |
| OÜ Stargate Hydrogen | Supervisory board member | 16191501 |
| OÜ Venture22 | Shareholder 100%Board member | 11556545 |
| RothCap Global OÜ | Board member | 17535875 |
| RothCap Investments OÜ | Shareholder 100%FounderBoard member | 12709643 |
| Sirbi investeeringud OÜ | Shareholder 80%FounderBoard member | 16616200 |
| Sovereign Europe Fund OÜ | Shareholder 100%FounderBoard member | 17439438 |