Earthrise photographed by the Apollo 8 crew

Building the first
Earth-Moon freight line

Explore our vehicles ↗ ► The mission
2026
Founded
20 years
Combined experience
10 x
Cheaper than Earth dependent
LEO ↔ Lunar
Operating envelope
Our mission

Unlock routine access to
locations beyond Earth.

Today every kilogram in space is launched from Earth. We're building vehicles that refill along the way, turning one-off missions into regular routes.

Today

Launch. Use once. Discard.

P78

Refuel. Reuse. Repeat.

Our vehicles

The spacecraft enabling true
in-space logistics.

Rideshare OTV

A responsive OTV for precise last-mile delivery and tactical manoeuvres across LEO to cislunar.

Delta-v 500 m/s for 340 kg
Restarts > 100
Thrust > 400 N
Lifetime 5 years
Heavy-Lift OTV

A heavy-lift OTV for expedited mass delivery and high-thrust orbital transfers across LEO to cislunar.

Payload Up to 5000 kg
Delivery LEO to cislunar, and back
Transfer time Days, rather than months
Integration Launcher agnostic
Careers

Come work with us.

We are a small team solving the big problems.

01 Propulsion Engineering Intern Internship Propulsion ↗ 02 Propellant Chemistry Intern Internship Propulsion ↗ 03 Propulsion Systems Intern Internship Propulsion ↗ 04 Open Application Tell us your story Any team ↗
Paris photographed from the International Space Station
48.85°N 2.35°E — Paris, from the ISS
Get in touch

Build, back, or partner with P78.

Infrastructure for space logistics. Come build it with us.