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Phase Four

US
commercialFounded 2015
Hawthorne, California, United States
www.phasefour.io/
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0.0-5.0

All verified mentions of this organization in source documents.

Phase Four of the proposed orbital debris cap-and-trade model would run from 2060 to 2070.

PlanValue 2.0Jun 29, 2026Security and sustainability in space: a proposed cap-and-trade model for orbital debris mitigation

The EU Emissions Trading System is now in phase four, which will last until 2030.

LegalPlanValue 2.4Jun 29, 2026Security and sustainability in space: a proposed cap-and-trade model for orbital debris mitigation

Phase Four would increase the non-compliance fee to $200 per ten-centimeter debris fragment.

LegalPlanValue 2.0Jun 29, 2026Security and sustainability in space: a proposed cap-and-trade model for orbital debris mitigation

Apex acquired Phase Four’s assets.

RelationshipsValue 4.0Jun 8, 2026Impulse Space Series D Supply Chain: Helios Sub-Tier Map 2026

The acquisition of Phase Four’s assets removed a qualified electric propulsion supplier from the open market.

RelationshipsValue 3.4Jun 8, 2026Impulse Space Series D Supply Chain: Helios Sub-Tier Map 2026

Phase Four supplies radio frequency ion propulsion systems for small satellites.

CapabilityRelationshipsValue 4.0Apr 23, 2026Muon Space’s Inorganic Growth Playbook

Quantum Space spent $40 million to acquire Phase Four's propulsion technology to support its defense initiatives.

RelationshipsFinancialValue 4.2Oct 22, 2025Quantum Space Readies its Ranger Spacecraft to Fly in 2026

Ranger 2000 will be equipped with Phase Four’s electric propulsion technology to enhance maneuverability for various missions.

CapabilityValue 3.6Oct 22, 2025Quantum Space Readies its Ranger Spacecraft to Fly in 2026

The acquisition from Phase Four includes an integration and test facility located in Los Angeles.

RelationshipsCapabilityValue 3.0Sep 28, 2025A Strategic Acquisition for Quantum Space, and More Power for Astro Digital.

Quantum Space acquired a technology that allows a single system to operate in both high-thrust chemical and high-efficiency electric modes from Phase Four.

RelationshipsCapabilityValue 4.0Sep 28, 2025A Strategic Acquisition for Quantum Space, and More Power for Astro Digital.

Acquiring Phase Four’s multi-mode propulsion assets marks a major inflection point for Quantum Space.

RelationshipsValue 2.8Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Quantum Space acquired Phase Four's technology that operates in both chemical and electric modes.

RelationshipsCapabilityValue 4.0Sep 23, 2025Phase Four Propulsion Assets Acquired by Quantum Space

Partnership with Quantum Space ensures that Phase Four's technology scales for important missions.

RelationshipsCapabilityValue 2.2Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Phase Four developed a breakthrough technology enabling a single system to operate in both chemical and electric modes.

CapabilityValue 3.5Sep 23, 2025Phase Four Propulsion Assets Acquired by Quantum Space

Quantum Space has acquired Phase Four’s multi-mode propulsion assets.

RelationshipsValue 4.2Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Phase Four’s multi-mode propulsion technology allows a single system to operate in both chemical and electric modes.

CapabilityValue 3.5Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Phase Four's multi-mode capability expands Rangers' rapid maneuvering for responsive missions.

CapabilityValue 2.8Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Phase Four's radio frequency propulsion technology bridges the gap between traditional chemical performance and electric efficiency.

CapabilityValue 2.2Sep 23, 2025Quantum Space acquires Phase Four’s multi-mode propulsion assets to boost space mobility

Apex acquired Phase Four’s Hall-effect thruster technology, including hardware and personnel.

RelationshipsValue 4.3Sep 22, 2025Quantum Space Acquires Phase Four’s Propulsion Tech

Quantum Space has acquired Phase Four’s integration and test facility in Hawthorne, California, capable of producing up to 100 engines per year.

RelationshipsCapabilityGrowthValue 4.6Sep 22, 2025Quantum Space Acquires Phase Four’s Propulsion Tech
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