home/ portfolio/ quantum-brilliance
Deep tech · Active

Quantum Brilliance

Room-temperature
quantum computing.

SectorDeep tech
Entry2022
Rampersand roleSeries A · follow
StatusActive
Founded
2019
Canberra
Founders
Andrew, Marcus & Mark
CEO · CSO · COO
Rampersand role
Follow
Seed
Latest round
A$25.7M
Seed · Feb 2023
Why we invested

Why Quantum Brilliance,
and why then.

Most quantum computers need cryogenic fridges and physics labs. Quantum Brilliance's diamond qubits run at room temperature – meaning quantum computing can live in datacentres, cars, and satellites.

Co-founders Dr Andrew Horsley (CEO), Dr Marcus Doherty (CSO) and Mark Luo (COO) spun the company out of ANU's world-leading diamond quantum science group in 2019. The technical bar is insane; so is the upside.

The journey so far

Quantum Brilliance ×
Rampersand

2022

Seed extension

Rampersand joined the syndicate backing Quantum Brilliance's room-temperature diamond quantum chips.

2023

Pre-Series A

Breakthrough Victoria and Main Sequence co-led; Rampersand followed on.

$18M
2025

Series A

Closed with Main Sequence, IQT and Intervalley Ventures.

$20M

Partner

PN

Paul Naphtali

Managing Partner

Paul partners with the team on deep-tech commercialisation, defence & national-security customer motions.

Explore more

Other Rampersand
companies.

See full portfolio