Insights

Strategic Acquisition Phase Four has recently divested propulsion assets to Apex and Quantum Space, signaling ongoing consolidation in the propulsion subsystem market. This presents an opportunity to position our offerings as complementary or upgraded solutions for customers who acquire or integrate these assets, addressing continuity, support, and lifecycle management needs.

Cost Efficiency The company emphasizes high performance at a fraction of traditional price with shorter delivery timelines and longer lifespan. This creates a compelling value proposition for satellite operators seeking to optimize propulsion cost of ownership and accelerate constellation deployment.

Near-term Market Signals Recent news indicates active sale or transfer of Maxwell and multimode propulsion assets to other players, implying a shift in supplier landscape. Proactively engaging potential acquirers, integrators, and operators in this transition can capture replacement or upgrade opportunities.

Sustainability & Reliability Phase Four's focus on eliminating common failure points and baked-in manufacturability aligns with durability and mission assurance requirements for constellations. This can be pitched to customers prioritizing long service life, reduced maintenance windows, and higher launch cadence.

Strategic Partnerships History of collaborations and MOUs with Orbit Fab and other space infrastructure players suggests receptivity to ecosystem partnerships. Targeting integrators, refueling services, and in-orbit servicing platforms could yield co-sell arrangements and expanded market reach.

Phase Four Tech Stack

Phase Four uses 8 technology products and services including ISO 9001, Amazon Web Services, WordPress, and more. Explore Phase Four's tech stack below.

  • ISO 9001
    Certificates
  • Amazon Web Services
    Cloud Hosting
  • WordPress
    Content Management System
  • Deltek Costpoint
    Customer Relationship Management
  • C++
    Programming Languages
  • HTML
    Programming Languages
  • X-Content-Type-Options
    Web & Portal Technology
  • Contact Form 7
    Web Platform Extensions

Media & News

Phase Four's Email Address Formats

Phase Four uses at least 1 format(s):
Phase Four Email FormatsExamplePercentage
First.Last@phasefour.ioJohn.Doe@phasefour.io
82%
First@phasefour.ioJohn@phasefour.io
16%
Middle@phasefour.ioMichael@phasefour.io
2%

Frequently Asked Questions

What is Phase Four's phone number?

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You can contact Phase Four's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Phase Four's official website and social media links?

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Phase Four's official website is phasefour.io and has social profiles on LinkedInCrunchbase.

How much revenue does Phase Four generate?

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As of August 2026, Phase Four's annual revenue is estimated to be $1M - $10M.

What is Phase Four's SIC code NAICS code?

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Phase Four's SIC code is 3761 - Guided Missiles and Space Vehicles NAICS code is 336414 - Guided Missile and Space Vehicle Manufacturing.

How many employees does Phase Four have currently?

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As of August 2026, Phase Four has approximately 23 employees across 3 continents, including North AmericaAfricaEurope. Key team members include Chief Information Officer: C. E.President: C. B.Head Of Information Technology: I. K.. Explore Phase Four's employee directory with LeadIQ.

What industry does Phase Four belong to?

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Phase Four operates in the Defense and Space Manufacturing industry.

What technology does Phase Four use?

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Phase Four's tech stack includes ISO 9001Amazon Web ServicesWordPressDeltek CostpointC++HTMLX-Content-Type-OptionsContact Form 7.

What is Phase Four's email format?

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Phase Four's email format typically follows the pattern of First.Last@phasefour.io. Find more Phase Four email formats with LeadIQ.

How much funding has Phase Four raised to date?

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As of August 2026, Phase Four has raised $36M in funding. The last funding round occurred on Jan 09, 2025.

When was Phase Four founded?

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Phase Four was founded in 2015.
Phase Four logo

Phase Four

Defense and Space ManufacturingCalifornia, United States11-50 Employees

Phase Four is a defense and space manufacturing company based in Hawthorne, California, that concentrates on satellite propulsion. The business aims to support the rapid expansion of satellite constellations by addressing the propulsion subsystem, a historically costly and high‑risk part of spacecraft design. Its approach emphasizes reliability and manufacturability by reducing common failure points and simplifying fabrication compared with legacy systems. The customers it serves are satellite operators and spacecraft developers seeking dependable propulsion with shorter lead times. In 2023, Phase Four announced the Maxwell Block 3 turn-key propulsion thruster, reflecting ongoing product development.

The company describes its propulsion solution as delivering performance comparable to traditional options at a lower price and with faster delivery, while offering a longer expected lifespan. This aligns with a focus on enabling broader maneuverability and operation for small to mid-sized satellite fleets. Within the defense and space manufacturing sector, Phase Four remains a relatively small firm concentrating on advancing its propulsion technology.

Section iconCompany Overview

Phone number
SIC Code
3761 - Guided Missiles and Space Vehicles
NAICS Code
336414 - Guided Missile and Space Vehicle Manufacturing
Founded
2015
Employees
11-50

Section iconFunding & Financials

  • $36M

    Phase Four has raised a total of $36M of funding over 8 rounds. Their latest funding round was raised on Jan 09, 2025as a series_c.

  • $1M - $10M

    Phase Four's revenue is estimated to be in the range of $1M - $10M

Section iconFunding & Financials

  • $36M

    Phase Four has raised a total of $36M of funding over 8 rounds. Their latest funding round was raised on Jan 09, 2025as a series_c.

  • $1M - $10M

    Phase Four's revenue is estimated to be in the range of $1M - $10M

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