Family office  ·  Maribor  ·  Operating globally

Capital for the
architects of what comes next.

93invest is a private family office backing the founders building foundational technology — from artificial intelligence and advanced computing to aerospace, defense, and the financial rails of tomorrow.

StructureSingle-family office
MandateLong-horizon, conviction-led
CapitalPermanent, our own
01 — Approach

A family office,
not a fund.

We invest our own capital, on our own timeline, into the companies we believe will define the next century.

93invest operates without a fund cycle, redemption pressure, or external limited partners. That freedom shapes everything: how we select what to back, the conviction we bring to each position, and our willingness to hold through the cycles that others cannot weather.

We partner with founders working at the frontier of what is technically possible — and we stay close long after the wire clears.

14+
Active portfolio positions
0
External LPs  ·  no outside capital
∞
Time horizon
02 — Portfolio

Where we have
conviction.

A selection of the companies we have backed across artificial intelligence, advanced computing, aerospace, defense, and the next generation of financial infrastructure.

SpaceX
Reusable orbital launch and the Starlink satellite network.
Aerospace
Shield AI
Autonomy software for defense aircraft and unmanned systems.
Defense · AI
Perplexity
Conversational answer engine for the post-search era.
Artificial intelligence
PsiQuantum
Photonic, fault-tolerant quantum computing at million-qubit scale.
Quantum
Polymarket
Information markets and the price discovery of truth.
Markets
Kalshi
Regulated US event-contracts exchange.
Markets · fintech
Glean
AI-native search and reasoning over enterprise knowledge.
Enterprise AI
Cursor
AI-native code editor redefining how software gets written.
Developer tools · AI
Lightmatter
Photonic interconnect and accelerated compute substrates.
Silicon · photonics
Positron
Energy-efficient inference silicon for foundation models.
AI hardware
d-Matrix
In-memory compute architecture for transformer inference.
AI hardware
Tenstorrent
RISC-V based AI compute, led by Jim Keller — open silicon for the next era.
AI hardware · RISC-V
Lambda
GPU cloud and on-prem infrastructure powering frontier AI training and inference.
AI infrastructure · Cloud
Ramp
Corporate spend and finance automation at modern scale.
Fintech
—
Additional positions held privately. Disclosed where appropriate.
Reserved
03 — Thesis

Where the
frontier lives.

I.

Artificial intelligence

Foundation models, agentic systems, and the application layer reshaping how knowledge work, scientific discovery, and decision-making get done.

II.

Advanced computing

Quantum, photonic, and post-Moore architectures — the substrates required for the next order of magnitude in capability.

III.

Aerospace & defense

Sovereignty, autonomy, and the renewed industrial base of the democratic world.

IV.

Financial infrastructure

Information markets, programmable money, and the financial primitives of an internet-native economy.

V.

Foundational science

Biology, energy, and materials — where the physical world meets compute, and where the largest unsolved problems remain.

“

We are operators, allocators, and builders — patient with capital and impatient with progress.

93invest  —  Operating principle
04 — Contact

Building something
foundational?

Correspondence
info@93invest.com
Office
Partizanska cesta 13a
2000 Maribor  ·  Slovenia  ·  Planet Earth
Entity
93 Invest, d.o.o.