The logistics layer of the in-space economy.

The propulsion and vehicles for in-space operations.

Explore the products ↗ ► The mission

HTP

Propellant architecture

LEO → Cislunar

Operating envelope

Reuse

In-orbit

20 years

Combined experience

Why now

Launch is solved. What comes next isn't.

The problems

P / 1

Propulsion

Legacy systems are toxic, slow, and expensive.

P / 2

Reuse

Every asset launches with a fixed operational life.

P / 3

Reach

The Moon and in-orbit assets stay out of routine reach.

What we do

Propulsion

HTP engines for reusable spacecraft.

Vehicle

Refuelable vehicles with cislunar range.

Logistics

Routing, servicing, and supply across the in-space economy.

The hardware

The propulsion layer and the vehicles it powers.

Modern hypergolic propulsion.

In development

A modern alternative to toxic legacy systems, built for repeated operations.

Thrust class 100-500 N

Isp 300 s

Propellant HTP bipropellant

Satellite class >250 kg

Reusable in-space vehicles.

Concept

Vehicles built around P78 propulsion. One platform, many missions.

Transfer LEO → Cislunar payload delivery

Service Refuel, inspect, reposition

Carry Multi-payload, multi-orbit deployment

Recover Active deorbit & debris capture

Careers

Come work with us.

We are a small team building the vehicles an orbital economy depends on. Come build them with us.

01 Propulsion Intern Internship Propulsion ↗ 02 Materials Intern Internship Propulsion ↗ 03 Propellant Intern Internship Propulsion ↗ 04 Open Application Tell us your story Any team ↗

Partner with us

Build, back, or partner with P78.

Infrastructure for the in-space economy. Customers and partners — we'd like to hear from you.