Designing the Next Generation of Fault-Tolerant Quantum Computing Architectures

Iceberg Quantum is a quantum architecture company. We design fault-tolerant architectures based on LDPC codes that reduce the hardware overhead for quantum error correction by over an order of magnitude, making useful quantum computing possible much sooner.

New

Pinnacle and Series Seed

February 13, 2026

A new fault-tolerant architecture with 10x lower overhead, and our $6M Seed round.

New

Pinnacle and Series Seed

February 13, 2026

A new fault-tolerant architecture with 10x lower overhead, and our $6M Seed round.

Modular and Efficient Surgery

November 21, 2025

New explicit constructions enabling practical, low-overhead gates on LDPC codes

Modular and Efficient Surgery

November 21, 2025

New explicit constructions enabling practical, low-overhead gates on LDPC codes

Fast Surgery

October 13, 2025

A new method for compressing the time overhead in fault-tolerant quantum computing with LDPC codes

Fast Surgery

October 13, 2025

A new method for compressing the time overhead in fault-tolerant quantum computing with LDPC codes

Partnering with Diraq

August 1, 2025

We're working with Diraq to accelerate the path to useful quantum computing with spin qubits.

Partnering with Diraq

August 1, 2025

We're working with Diraq to accelerate the path to useful quantum computing with spin qubits.

Partnering with Oxford Ionics

July 17, 2025

We’re working with Oxford Ionics on an LDPC-based fault-tolerant architecture for trapped ions.

Partnering with Oxford Ionics

July 17, 2025

We’re working with Oxford Ionics on an LDPC-based fault-tolerant architecture for trapped ions.

Introducing Iceberg Quantum

March 25, 2025

We’ve raised a $2M pre-seed round from Blackbird and LocalGlobe, and are partnering with PsiQuantum.

Introducing Iceberg Quantum

March 25, 2025

We’ve raised a $2M pre-seed round from Blackbird and LocalGlobe, and are partnering with PsiQuantum.

Team

Larry Cohen

Co-Founder

Felix Thomsen

Co-Founder

Samuel Smith

Co-Founder

Paul Webster

Team

Nouedyn Baspin

Team

Omprakash Chandra

Team

Stephen Bartlett

Advisor

... and growing!

Felix Thomsen (CEO)

and

Samuel Smith (CTO)

and

Larry Cohen (CSO)

and

Stephen Bartlett (Advisor)

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and

and

and

and

Alex Townsend-Teague

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and

and

and

Pádraic Calpin

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and

Armanda O. Quintavalle

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Campbell McLauchlan

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If you are interested in joining the team, send us an email.

Partners

Investors

We are grateful for the support of Blackbird, LocalGlobe and DCVC.

Follow us on X/Twitter at @IcebergQuantum

info@iceberg-quantum.com