United States development

Positron Dynamics

Positron Dynamics is a California deep-tech propulsion company developing antimatter-based and positron propulsion concepts for spacecraft.

Headquarters
Livermore, United States
Founded
2012
Type
startup
positrondynamics.com
Founded
2012
Headquarters
Livermore, United States
Ownership
Private
Last round
Undisclosed round 2016-03
Quick Facts
Country
United States
Founded
2012
Type
startup
Status
development

About Positron Dynamics

Updated 2026-09-19

Positron Dynamics is a California deep-tech propulsion company developing antimatter-based and positron propulsion concepts for spacecraft. Its core innovation involves generating intense beams of cold positrons using array moderators combined with radioisotope sources, aiming toward propulsion systems far more energy-dense than chemical or fission approaches. Near term, the company intends to apply its technology to maneuver and de-orbit small satellites, with a longer-term vision of enabling interplanetary travel. Founded by Dr. Ryan Weed, a positron physicist and former Blue Origin physicist, the company has been backed by Breakout Labs and angel investors.

Key People

Ryan Weed (co-founder, CEO)

Funding history

1 event
DateRoundAmountInvestorsSource
2016-03-03Undisclosed round—— Form D filed 2016-03-03: Propel (Positron Dynamics) LLC (CIK 0001667936). Offering amount in the filing.sec.gov

Team

Ryan Weed (co-founder, CEO)

Signals

Verification
Verified 2026-09-19

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Frequently asked about Positron Dynamics

Quick answers to the questions readers most often search for.

When was Positron Dynamics founded?
Positron Dynamics was founded in 2012 in United States.
Where is Positron Dynamics headquartered?
Positron Dynamics is headquartered in Livermore, United States.
What does Positron Dynamics do?
Positron Dynamics is a California deep-tech propulsion company developing antimatter-based and positron propulsion concepts for spacecraft. Its core innovation involves generating intense beams of cold positrons using array moderators combined with radioisotope sources, aiming toward propulsion systems far more energy-…
Is Positron Dynamics a public or private company?
Positron Dynamics is a privately held startup and is not listed on any stock exchange.
What sector does Positron Dynamics operate in?
Positron Dynamics works in propulsion, Research and Space technology.

Data Accuracy Notice: Information about Positron Dynamics is compiled from publicly available sources including company websites, press releases, regulatory filings, and industry reports. Data is reviewed periodically but may not reflect the most recent developments.

Matched to SEC EDGAR · data pass September 19, 2026
Editorial owner: Dr. Donovan, Editor-in-Chief Company representatives may submit corrections This page does not constitute an endorsement or affiliation Learn about our data methodology