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HOME/PEOPLE/TOM MUELLER
// PERSON

Tom Mueller

ROLE CEO & CO-FOUNDERAT IMPULSE SPACEMENTIONS 18LAST SEEN JUNE 15, 2026
// BIO

Founder, CEO & CTO of Impulse Space and SpaceX Employee #1, led development of Falcon/Dragon propulsion.

Discussed in
// RECENT MENTIONS
// SIGNALS
18 SIGNALS
01
funding·Sourcery Newsletter·JUNE 15, 2026

137 co-led the $500M Series D with BANNER VC at a $4B valuation; founded by SpaceX propulsion veteran Tom Mueller.

02
mention·Sourcery·JUNE 14, 2026

Tom's the guy you want to use if you're trying to get things to move in space. Right, if you want to put up a constellation, Tom's a good guy to talk to.

Source
03
mention·Sourcery Newsletter·JUNE 4, 2026

"Vertically integrated, hire the best, and move fast. That's what we learned at SpaceX."

04
mention·Sourcery Newsletter·JUNE 4, 2026

"Compute needs to move to space... All you need as an input is power, and all you have as an output is data. So you move it to space, you have all the power you would ever need."

05
mention·Sourcery Newsletter·JUNE 4, 2026

"Elon's great to work with. Generally, he just energizes you. He's got this infectious enthusiasm and gets you just hyped up to go do crazy stuff... He's also really good at finding and recruiting talent."

06
mention·Sourcery Newsletter·JUNE 4, 2026

Participants: Molly O'Shea

07
mention·Sourcery·JUNE 4, 2026

When I left, I had the plan of launch mostly being solved or being solved. It's like the next big opportunity is to move all that payload, all that cargo around in space. So I started Impulse Space to do in-space transportation as opposed to from Earth to space transportation.

Source
08
product·Sourcery·JUNE 4, 2026

Impulse's product suite reflects this: Mira (orbital transfer/maneuvering vehicle), Helios (high-energy transfer stage), and future lunar landers.

Source
09
product·Sourcery Newsletter·JUNE 4, 2026

building Mira (maneuvering spacecraft), Helios (kick stage), and the Deneb engine

10
hire·Sourcery·JUNE 4, 2026

Tom Mueller — Founding propulsion engineer at SpaceX; creator of the Merlin engine; led Starship propulsion for 6 years; now founder/CTO of Impulse Space.

Source
11
mention·Sourcery·JUNE 4, 2026

Jared Isaacman said, we're going to build a base on the moon and we're going to stay there. And that's right on, man. That's exactly what I want to do.

Source
12
mention·Sourcery·JUNE 4, 2026

Elon's great to work with. Generally, he just energizes you. He's got this infectious enthusiasm and gets you just hyped up to go do crazy stuff... He's also really good at finding and recruiting talent.

Source
13
mention·Sourcery·JUNE 4, 2026

We have three on orbit right now. We did a rendezvous last year between two of them. Got within 1,200 meters of each other, which is really damn close in space.

Source
14
m_and_a·Sourcery·JUNE 4, 2026

The bigger one there is a tank for Vast space station. We provided the whole propulsion system for Vast, including the thrusters.

Source
15
mention·Sourcery·JUNE 4, 2026

There's actually some commercial companies like LeoLabs that track things and they just tell you, hey, you've got a potential [collision].

Source
16
funding·Sourcery Newsletter·JUNE 2, 2026

Impulse Space Raises $500M Series D... Co-led the $500M Series D as a returning investor... Co-led the $500M Series D as a new investor... Participating investors in the Series D round

Source
17
mention·Sourcery·JUNE 2, 2026

Tom left SpaceX. He was there for almost 20 years... I think without Tom, I don't think that company [SpaceX] goes in the first days.

Source
18
mention·Sourcery Newsletter·JUNE 2, 2026

Romo himself was employee #13 at SpaceX; CEO Tom Mueller was employee #001.

AI-extracted from podcast / newsletter / paper summaries. May contain errors.