01
Launch
Vehicles, ranges, and the ground systems that make departure repeatable. Access to orbit is the threshold: without it, nothing else in the thesis compounds.
Fig. 01Conceptual orbital infrastructure
Investingbeyond thehorizon.
Frontier conviction. Long-term perspective.
We explore the technologies expanding what is possible—from access to orbit and satellite networks to the emerging potential of orbital computing.
Start a conversationLinkedIn (opens in a new tab)01 — Thesis
An investment perspective for the new space age.
Neptuno backs infrastructure and the ideas that give it purpose: systems that may shape the next era, and the founders building them.
Future-proof, in our language, is a philosophy. It means a long-term perspective and a bias toward resilience through change. It is not a guarantee of outcomes, and it is not a promise that capital is protected.
The thesis on this page is space. It does not recast Neptuno’s history as an exclusively space-focused record.
Our early investment in SpaceX reflects our conviction in the new space age.
A long horizon is a discipline.
02 — Frontiers
Where the thesis looks.
Four directions organize the work. They are areas of inquiry, not a list of holdings. Neptuno does not manufacture spacecraft, and nothing here is a facility the firm owns.
02
Orbital infrastructure
Platforms, logistics, and servicing. The less visible layer that lets hardware remain useful once it is up — infrastructure in the older sense of the word.
03
Satellites
Constellations and instruments that turn a vantage point into signal: communications, sensing, and timing that only orbit can provide.
04
Space-enabled computation
Orbital data centers are an emerging thesis — the possibility that some computation may one day sit in orbit, closer to where data is gathered and under different limits on power and heat. It is early and unsettled. We do not describe it as a mature industry, and we do not describe it as Neptuno’s.
03 — Partner
Fabio Ribeiro
Founding Partner, Neptuno
Fabio Ribeiro is the Founding Partner of Neptuno. For more than 25 years he has invested in technology, including early investments in many breakthrough companies such as Apple, Tesla and SpaceX.
He helped create the internet in Brazil at iG, in the early days of the Brazilian internet. He built an entrepreneurial venture in the aviation industry and carried it through to an exit, and he co-founded TUZ Ventures. He brings all of this, including his years managing Neptuno, to founders building at the frontier.
EducationFabio has a BA in Administration, a master's in Economics from Bocconi and an MFA in Interactive Media from the University of Miami.
Fabio RibeiroLinkedIn (opens in a new tab)04 — Connect
Start a conversation.LinkedIn (opens in a new tab)
Neptuno welcomes a conversation with founders building in these frontiers, and with people who have an opportunity that belongs in the same thesis.