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Tim Ellis

Founder and CEO of Relativity Space.

Tim Ellis co-founded Relativity Space in 2015 with Jordan Noone, his USC Rocket Propulsion Lab colleague, after five years at Blue Origin as a propulsion development engineer (where he brought metal 3D printing in-house and worked on BE-4/New Glenn/Crew Capsule RCS thrusters). He holds a BS and MS in Aerospace Engineering from USC. Relativity secured an initial $500K commitment from Mark Cuban via a cold email and later raised $650M in a Series E at a $4.2B valuation (June 2021). Ellis stepped down as CEO in March 2025 — Eric Schmidt became CEO — and continues as co-founder and board member.

Overview

Role
Co-founder & Board Member (former CEO)
Based in
Long Beach, CA
Prior experience
Blue Origin

Companies1

Affiliated funds0

No linked records yet.

Frequently asked

Who is Tim Ellis?
Tim Ellis co-founded Relativity Space in 2015 with Jordan Noone, his USC Rocket Propulsion Lab colleague, after five years at Blue Origin as a propulsion development engineer (where he brought metal 3D printing in-house and worked on BE-4/New Glenn/Crew Capsule RCS thrusters). He holds a BS and MS in Aerospace Engineering from USC. Relativity secured an initial $500K commitment from Mark Cuban via a cold email and later raised $650M in a Series E at a $4.2B valuation (June 2021). Ellis stepped down as CEO in March 2025 — Eric Schmidt became CEO — and continues as co-founder and board member.
What is Tim Ellis's role?
Tim Ellis is Co-founder & Board Member (former CEO), based in Long Beach, CA.
Where did Tim Ellis work before?
Tim Ellis's prior roles include Blue Origin.

Tags

founderspace3d-printingaerospace

Sources & citations2

Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.

  1. 1

    Tim Ellis is an American aerospace engineer and co-founder of Relativity Space; earned BS/MS Aerospace Engineering from USC; worked 5 years at Blue Origin bringing metal 3D-printing in-house; co-founded Relativity in 2015 with Jordan Noone; stepped down as CEO in March 2025.

    Wikipedia: Tim Ellis (engineer)
    Reported2026-07-20
  2. 2

    Relativity names Eric Schmidt as CEO, confirming Tim Ellis's transition from CEO to co-founder/board member in March 2025.

    SpaceNews: Relativity names Eric Schmidt as CEO as it updates Terran R development
    Verified2025-03-17