Press Kit
Access to space as easy as mailing a package
We give researchers, manufacturers, and R&D teams access to microgravity without requiring them to become an aerospace company to get it.
About Tumbleweed
Microgravity enables breakthroughs in pharmaceuticals, biotechnology, semiconductors, and advanced materials.
Yet sending something to space today can take years, millions of euros, and a team of aerospace specialists.
Tumbleweed is changing that.
We are building the infrastructure that allows researchers and companies to send experiments to orbit as easily as mailing a package.
Founded in November 2024, Tumbleweed is a space infrastructure company based in Vienna, with an additional office in Delft, the Netherlands.
Our mission is simple: make access to space as easy as mailing a package.
At the core of the platform are two technologies:
Pod: A modular payload container that allows customers to integrate their experiments without needing aerospace expertise.
Oasis: A free-flying orbital platform designed to host Pods in orbit and return them safely to Earth.
Together, Pod and Oasis create a plug-and-play system for space access, reducing timelines from years to months.
About the Team
Tumbleweed is an interdisciplinary team of 21 engineers and operators with backgrounds in aerospace engineering, mechanical design, embedded systems, and business development.
Headquartered in Vienna, with an additional office in Delft, the team combines experience from the European Space Agency, Thales Alenia Space, Rocket Lab, and leading technical universities.
Founders
Julian Rothenbuchner — Co-Founder & CEO: Aerospace engineer and entrepreneur leading partnerships and strategy.
Leonhard "Lenny" Goliasch — Co-Founder & COO: Responsible for operations, business development, and scaling the company.
Guillaume Brault — Co-Founder & CTO: Space engineer with experience at Thales Alenia Space, Rocket Lab, and TNO. Leads hardware and mission design.
“Space should not be limited to billion-dollar missions and specialized aerospace teams. At Tumbleweed, we are making orbit accessible to anyone with a great idea.”
— Julian Rothenbuchner, CEO
Key Milestones
2024 — Tumbleweed is founded
2025 — First customers secured: initial payloads booked for the inaugural mission.
July 2026 — Oasis Alpha, our first mission, launches to space, carrying payloads from four different customers.
Future — Oasis Beta: Our next mission with expanded capabilities including return functionality.
Fast Facts
Oasis Alpha
Press Releases
7 Jul 2026
Oasis Alpha is in orbit: Austria’s first commercial satellite successfully deployed
Tumbleweed confirms separation from SpaceX Transporter-17, four European research teams reach space for the first time
6 Jul 2026
The Countdown is on: Austria’s first commercial satellite launches tomorrow aboard Transporter-17 rideshare mission
Built in nine months, Oasis Alpha carries four European research teams to space for the first time
4 Jun 2026
HyPrSpace (France) and Tumbleweed (Austria) Sign Strategic Partnership to Deliver Dedicated European Microgravity Launch Services
3 Jun 2026
5x Faster to Space: Austrian Space Startup Tumbleweed Delivers Country's First Commercial Satellite
Vienna-based startup, Tumbleweed, delivers Austria’s first commercial satellite hardware in under 9 months, proving that microgravity research can finally move 5x faster than the industry standard.
Media Assets
Available upon request:
- Founder photos (available upon request)
- Mission graphics (available upon request)
- Development and cleanroom images (available upon request)