Quantum infrastructure software, built in Europe
SoftQuantus is an Estonian deep-tech company. We build QCOS — an operating system for governed quantum infrastructure — together with the security and evidence layers that enterprises and research institutions need to govern quantum workloads.
We make quantum hardware governable
Quantum hardware is becoming commercially accessible — but it is still difficult to operate in production. Hardware drifts, results are hard to verify, providers are fragmented, and there is no standard layer for governance or compliance.
SoftQuantus solves this with a software control layer that sits above the hardware: QCOS for orchestration and evidence, QuantumLock for licensing and security, SynapseX for AI-assisted research workflows, and QCOS Bench for reproducible benchmarking. We build for enterprises, national labs, HPC centers, and hardware vendors who need governed quantum infrastructure.
Our principles
These core values guide everything we build.
Reproducibility First
Every quantum circuit execution should be reproducible across any hardware provider.
Provider Agnostic
No vendor lock-in. Work with trapped-ion, superconducting or neutral-atom providers through one interface.
Audit Ready
Every run produces an evidence bundle that can be verified offline.
Open Standards
Built on OpenQASM, MLIR, and open formats. No proprietary lock-in.
Our journey
Foundation
SoftQuantus founded with a vision to make quantum computing reproducible and accessible
QCOS™ Launch
First release of the Quantum Computer Operating System
QuantumLock™
Post-quantum cryptography and license management system launched
SynapseX™
AI platform for research and development workflows
Cloud Platform
Unified cloud platform bringing all products together
Join us in shaping the quantum future
We're always looking for talented people who share our vision.