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Mach33 Financial Group

VC

USDeep TechClimateOther

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Investment thesis

Mach33 Financial Group is the Space Finance Group financing human expansion through a comprehensive suite of financial products and services dedicated exclusively to space. We are constructing the financial engine for the next generation of space infrastructure, built upon decades-long relationships. We firmly believe that this grand vision can only come to fruition when founded on trust and integrity. Our partners, investors, and operators all share a common vision of human expansion. We study expansion technologies poised to define the next era of human progress. Every investment we make is the direct result of that research. Mach33 is a physics-first, research-led investor. We test every claim through a concentric set of constraint envelopes. The physics envelope is the innermost. If the laws of nature do not permit it, we stop. Engineering, manufacturing, operations and reliability, and product market fit are each outer layers, tested in sequence.

Notable quotes

Jeff's track record pioneering propulsion at SpaceX, Stratolaunch and [Amazon's Project] Kuiper gave us early confidence in Portal. But the team's rapid transformation of technical breakthroughs into staggering customer demand sealed our decision to double down this round.

Aaron Burnett · LinkedIn · 2026-04

We believe the same capital formation is required for the expansion of humanity…[and] our journey into the stars.

J. Brant Arseneau · LinkedIn · 2024-02

For investors evaluating SpaceX, I highly recommend seeing Starship launch. Don't delegate - go yourself. Forever changes one's perspective on this extraordinary company - and where humanity is headed. You'll have higher conviction to ride through the ups and downs…ultimately capturing stronger returns over time.

Aaron Burnett · Ted Merz Blog

Team

Aaron Burnett

Founder, Group CEO

Deep Tech

J. Brant Arseneau

Founder, Group Chairman, CIO

Deep Tech

Brad Arseneau

Group COO

Alex Darvishian

VP, Venture, Capital Markets

Deep Tech

Vlad Saigau

Associate, Research

Deep Tech

Nathan Whigham

Advisor, Asset Management

Recent investments

CompanyRoundSizeDate
Portal Space SystemsSeries A$50m2026-04
Portal Space SystemsSeed$18m2025
Stoke SpaceSeries C$260m2025-01
Cosmic Shielding CorporationPre-seed$1m
Orbital CompositesUnknown
Infinite CompositesEquity$500k
XairosUnknown
ApptronikUnknown
Interstellar LabUnknown
Relativity SpaceUnknown

Frequent co-investors

VC firmDeals together
AlleyCorp2
FUSE2
Geodesic Capital1
ARK Invest1
Booz Allen Ventures1
SpaceFund1

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