Orbitfab

Orbitfab

In-space refueling service and propellant depots

Overview

OrbitFab provides in-space refueling for satellites by deploying propellant depots and using reusable fuel shuttles to create an orbital gas-station network. In practice, propellant such as hydrazine is stored in orbit and delivered to customers’ satellites on demand, with revenue from selling propellant and contracts with operators including the U.S. Space Force starting in 2025. It differentiates itself by building an end-to-end orbital supply chain for propellant and logistics, rather than only servicing satellites, enabling a scalable, recurring fuel infrastructure. Its goal is to establish a practical, ongoing in-space propellant supply system that increases satellite utility and supports broader space industries like manufacturing and tourism.

About Orbitfab

Simplify's Rating
Why Orbitfab is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Energy

Aerospace

Company Size

51-200

Company Stage

Series B

Total Funding

$86.5M

Headquarters

Lafayette, Colorado

Founded

2018

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Simplify's Take

What believers are saying

  • Peter Shaper joined July 7, 2026, bringing satellite-services operating experience.
  • Three demo missions over 18-24 months could unlock over $40 million in contracts.
  • July 2025 ESA funding and 2026 Shilling mission validate xenon and hydrazine expansion.

What critics are saying

  • Mid-2026 Tetra-5 refueling failure would stall customer adoption and backlog conversion.
  • Orbit Fab still needs a $30 million to $50 million Series B for 2027 demos.
  • Daniel Faber stepped aside March 13, 2026, raising execution risk during commercialization.

What makes Orbitfab unique

  • RAFTI standardizes satellite refueling ports across GEO, defense, and commercial spacecraft.
  • Orbit Fab signed ESA ARTES funding July 2025 for telecom refueling architecture.
  • Its first U.S. Space Force refuel mission targets Tetra-5 in mid-2026.

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Funding

Total Funding

$86.5M

Above

Industry Average

Funded Over

8 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Below Average

Industry standards

$35M
$30M
Patreon
$45M
Linktree
$65M
Substack
$100M
ClickUp

Benefits

Health Insurance

Paid Vacation

Flexible Work Hours

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

-3%

1 year growth

0%

2 year growth

0%
SpaceNews
Jul 7th, 2026
Orbit Fab raises $25M, appoints new CEO to commercialise satellite refueling

Orbit Fab has appointed Peter Shaper as chief executive and raised over $25 million in interim funding from Stride Capital. The Colorado-based satellite refueling company is transitioning from technology development to commercial operations. Shaper, who has three decades of private equity experience, previously led satellite services companies CapRock Communications and Speedcast. He aims to commercialise Orbit Fab's RAFTI docking and refueling interface technology. The company has three demonstration missions scheduled for the next 18 to 24 months, designed to refuel government satellites using hydrazine fuel shuttles. These demonstrations could unlock over $40 million in contracts for on-orbit refueling services. Orbit Fab is preparing to raise between $30 million and $50 million in a Series B round later this year. The funding will support at least two demo missions in 2027 and initial commercial contracts, targeting primarily US military customers.

SpaceWatch.Global
Mar 16th, 2026
Orbit Fab raises $20M Series B as CEO steps down amid shift to commercialisation

Orbit Fab has raised $20 million in a Series B round led by Stride Capital as it transitions from developing on-orbit refuelling technology to large-scale commercialisation. The funding will strengthen the company's capital foundation as it enters its next growth phase. Alongside the fundraising, CEO Daniel Faber has stepped down from day-to-day responsibilities. The company has established an Executive Committee to ensure stability and operational continuity during the leadership transition. The round marks a decisive stage in Orbit Fab's evolution as it scales its on-orbit refuelling capabilities.

Orbit Fab
Jul 25th, 2024
UK Pioneers Space Refuelling with £2m for Orbit Fab’s Innovative Technologies - Orbit Fab

Harwell, England – July 22, 2024 Global leader in on-orbit refuelling, Orbit Fab, lands £2m...

SpaceNews
Apr 17th, 2023
Orbit Fab raises $28.5 million

Orbit Fab, a startup developing in-space satellite refueling services, has raised $28.5 million to accelerate work on its first missions.

SpaceNews
Oct 25th, 2022
Orbit Fab secures new investor to support satellite refueling efforts

Orbit Fab, a startup developing infrastructure for in-space refueling of satellites, announced Oct. 25 it lined up a new investor to support those plans.

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