Alex Rubalcava
InvestorManaging Partner at Amplify.LA · Board director at Gray Matter · Board director at Sound Commerce · Board director at SPIDR Tech
Los Angeles, California
Writes $500K – $1M checks · typically $750K
Find your path to Alex
326 people in our graph can introduce you to Alex.
Each arrow is one introduction. Sign up to fill in the first one.
Ask Brian Mesic to introduce you to Alex
You →Brian · together at Anthem Venture Partners (2002–2004) →Alex
Ask Jamie Chen to introduce you to Alex
You →Jamie · 3 people · together at Amplify.LA →Alex
Ask Sam Okafor to introduce you to Alex
You →Sam · together at Abett →Alex
Sign up to find every way you can get introduced to Alex
- Your email: the people you already email who know Alex
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Alex
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
About
Alex Rubalcava is a Managing Partner at Amplify.LA, where he focuses on seed-stage investments in enterprise software companies addressing significant operational challenges.
Invests in
AI & Machine LearningDeep TechDefense TechEnterprise SoftwareHardwareSpace Tech
Board director at Gray Matter
Intro paths
In turn, Alex can intro founders to Gray Matter's investors below.
Gray Matter's investors · 11
Co-founders at Gray Matter

Board director at Sound Commerce
Intro paths
In turn, Alex can intro founders to Sound Commerce's investors below.
Sound Commerce's investors · 3
Co-founders at Sound Commerce

Board director at SPIDR Tech
Intro paths
In turn, Alex can intro founders to SPIDR Tech's investors below.
SPIDR Tech's investors · 5
Co-founders at SPIDR Tech
Experience
- Amplify.LAManaging Partnercurrent2026 — present
- Stage Venture PartnersPartnercurrent2015 — presentLos Angeles, California, United States
- WeGiveBoard Membercurrent2024 — present
- Mission Control AIBoard Membercurrent2022 — present
- GrayMatter RoboticsBoard Member & Board Observercurrent2021 — present
- CallypsoBoard Member2022 — 2025
- AbettBoard Member2020 — 2024
- Dyania HealthBoard Member2019 — 2023
- BaltoBoard Member2018 — 2020Greater St. Louis Area
- WhiteFox Defense Technologies, Inc.Board Member2017 — 2019San Luis Obispo, California Area
- SPIDR TechBoard Member2017 — 2019Manhattan Beach, CA
- WhereTo - Business Travel ReimaginedBoard Member2017 — 2018
- Thrive ScholarsDirector2007 — 2016
- self-employedInvestor2005 — 2011
- Los Angeles Animal ServicesCommissioner2003 — 2005
- Anthem Venture PartnersAnalyst2002 — 2004
Skills & more
From Alex's professional profile.
Deals · 29
Sound CommerceBoard seat
via Stage Venture Partners · filed Jun 2019 · $6.5M raise
RetrocausalSolo GP
via Stage Venture Partners · filed Nov 2023
SysGitSolo GP
via Stage Venture Partners · filed Sep 2023
Building SwellSolo GP
via Stage Venture Partners · filed Mar 2023
Gray MatterSolo GP
via Stage Venture Partners · filed Aug 2022
WeGiveSolo GP
via Stage Venture Partners · filed Jul 2022
Epsilon3Solo GP
via Stage Venture Partners · filed May 2022
AbettSolo GP
via Stage Venture Partners · filed Jan 2020
Dyania HealthSolo GP
via Stage Venture Partners · filed Nov 2019
AbstractSolo GP
via Stage Venture Partners
BaltosoftwareSolo GP
via Stage Venture Partners
CandidSolo GP
via Stage Venture Partners
DatchSolo GP
via Stage Venture Partners
Elementary SystemsSolo GP
via Stage Venture Partners
First ResonanceSolo GP
via Stage Venture Partners
GlacierGridSolo GP
via Stage Venture Partners
Mission ControlSolo GP
via Stage Venture Partners
Placer AISolo GP
via Stage Venture Partners
Slingshot AerospaceSolo GP
via Stage Venture Partners
SunairioSolo GP
via Stage Venture Partners
TrackstreetSolo GP
via Stage Venture Partners
ValiotSolo GP
via Stage Venture Partners
VeriSIM LifeSolo GP
via Stage Venture Partners
VNTANASolo GP
via Stage Venture Partners
WhiteFox DefenseSolo GP
via Stage Venture Partners
GraphlitSolo GP
via Stage Venture Partners
InhouseSolo GP
via Stage Venture Partners
KuonaSolo GP
via Stage Venture Partners
UpdateAISolo GP
via Stage Venture Partners
Attribution from SEC filings, press coverage, and firm rosters. Some rows are inferred. Not right? Tell us.
Other disclosed investments
Investor
Unstruk DataWhiteFox Defense Technologies
Sources: curated public sources · SEC Form D filings.
Colleagues at Amplify.LA
Network2
Investors connected to Alex in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Alex Rubalcava?
- Alex Rubalcava is a Managing Partner at Amplify.LA, where he focuses on seed-stage investments in enterprise software companies addressing significant operational challenges.
- Where does Alex Rubalcava work?
- Alex Rubalcava is Managing Partner at Amplify.LA and Board director at Gray Matter and Board director at Sound Commerce and Board director at SPIDR Tech.
- What does Alex Rubalcava invest in?
- Alex Rubalcava invests in AI & Machine Learning, Deep Tech, Defense Tech, Enterprise Software, Hardware, Space Tech.
- What check size does Alex Rubalcava write?
- Alex Rubalcava typically writes checks of $500K – $1M.
- What boards does Alex Rubalcava sit on?
- Alex Rubalcava holds tracked board seats at Sound Commerce.
- What companies has Alex Rubalcava invested in?
- Investments tracked here include Dyania Health, Gray Matter, Unstruk Data, WhiteFox Defense Technologies.
- Where did Alex Rubalcava go to school?
- Alex Rubalcava studied at Harvard University (BA, Government).
- Does Alex Rubalcava lead rounds?
- Yes — Alex Rubalcava has led 1 tracked investment.
Same school
Also attended Harvard University2,000
+ 1,994 more
Shared employers
Also worked at Abett1
Also worked at Balto8
+ 2 more

.jpeg)
























































