
Relativity Space
What they do:
Building humanity’s multiplanetary future.
Quick facts:
HQ: Los Angeles, CA, United States
This list has 12 startups and was last updated on Oct 15, 2026. 3 of them are hiring right now. Largest teams: Relativity Space, AON3D, and ArchForm. Latest round: VenoStent raised $10M (May 1, 2026).

What they do:
Building humanity’s multiplanetary future.
Quick facts:
HQ: Los Angeles, CA, United States

What they do:
Absorbable wrap for blood vessels
Quick facts:
HQ: Houston, TX, United States
Funding:
$10M · Debt · May 2026

What they do:
Additive Manufacturing with advanced materials
Quick facts:

What they do:
Replacing orthodontic braces with our clear aligner and software
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Gigascale Nanomanufacturing
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Physics-based foundation models for CAD optimization.
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Accelerating scaled plastics with additive technologies
Quick facts:
HQ: El Segundo, CA, United States

What they do:
Acquired by MakerBot in February 2014. A marketplace for 3D…
Quick facts:
HQ: San Francisco, CA, United States

What they do:
3D printing beautiful, high-quality, and sustainable homes.
Quick facts:
HQ: San Francisco, CA, United States

What they do:
AWS for manufacturing.
Quick facts:
HQ: New York, NY, United States
What they do:
Simple 3d modeling software for 3d printers.
Quick facts:
HQ: San Francisco, CA, United States
What they do:
Functional 3D printing materials.
Quick facts:
HQ: Emeryville, CA, United States
There are 12 startups on this list, last updated on Oct 15, 2026.
3 of them are hiring right now, including Relativity Space, AON3D, and ArchForm.
By team size: Relativity Space (2,500 employees), AON3D (40 employees), and ArchForm (23 employees).
Latest rounds: VenoStent — $10M Debt (May 2026).