Legacy MES vs. Epsilon3

The modern alternative to legacy manufacturing execution systems for space, defense, and complex hardware.

Legacy MES was built for the factory floor of the past. Epsilon3 is built for teams that build, test, and fly on today's timelines: engineers write, run, and change procedures themselves, from integration through live operations.

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Legacy MES vs. Epsilon3 at a glance

Six differences that decide whether an operations platform gets adopted or shelved.

Epsilon3 vs. Legacy MES
  
        Criterion
        Legacy MES
        Epsilon3
      
        Speed to value
        Multi-month to multi-year rollouts, typically led by integrators
        Configured in the product by your own team; first procedures running in two weeks
      
        Engineer ownership
        Changes routed through IT, consultants, or change requests
        Engineers author, redline, and route approvals directly
      
        Build-to-ops in one place
        Production-floor focus; test, quality, and operations often live in separate tools
        Procedures, manufacturing, quality, maintenance, test, and live operations on one connected record
      
        Built by operators
        General manufacturing software heritage
        Founded by former SpaceX mission operations leaders
      
        Proven switch
        Migration risk keeps teams on aging versions
        Runs alongside your current MES; [a government space program] has already made the move
      
        Government-ready
        Authorizations and hosting options vary by vendor and version
        FedRAMP High authorized; cloud, GovCloud, on-premises, and hybrid deployment