How we choose Disruptor companies
Now the company is completing work on the first rocket it plans to launch to orbit by the end of this year.
The company remains on schedule for the launch from its Cape Canaveral launch site later this year, Ellis said in an interview on CNBC's "TechCheck" on Thursday.
Additionally, Relativity in February unveiled plans to build a bigger and reusable rocket called Terran R, designed to take on the Falcon 9 rocket that has become the workhorse of Elon Musk's SpaceX.
Relativity already has the world's largest 3D printers, capable of manufacturing a single piece of metal up to 32 feet tall. About 95% of the parts for its Terran 1 rocket are 3D-printed, a process which Ellis touts as making the rocket many times less complex compared to traditional rockets. Additionally, Relativity says its simpler process will eventually be capable of turning raw material into a rocket on the launchpad in under 60 days.