QuSecure expands post-quantum cybersecurity deployments

QuSecure develops post-quantum cybersecurity orchestration and cryptographic agility products. Founded: 2019. Estimated employees: 11-50. Known funding: $12M+ reported. Notable products: QuProtect.

Post-Quantum develops post-quantum identity, VPN, and cryptographic security technologies. Founded: 2009. Estimated employees: 11-50. Known funding: Unknown. Notable products: NTS-KEM, post-quantum VPN and identity products.

The Chicago Quantum Exchange-led Bloch Quantum Tech Hub received a reported nearly $55 million package centered on a $30 million U.S. Economic Development Administration award plus state and private-sector contributions for quantum manufacturing and supply-chain development in the Illinois-Wisconsin-Indiana region.

Innovate UK Business Connect's opportunities page lists 'Scaling performance of quantum computing hardware: CR&D', open from 2026-06-27 to 2026-09-18, where UK registered organizations can apply for a share of up to £33 million to develop device-level hardware and associated software for universal fault-tolerant quantum computers.

CORDIS lists REALCRYPT as a Horizon Europe ERC Proof of Concept project for protocol-level hybridisation of post-quantum and classical cryptographic protocols, coordinated by Bergische Universitaet Wuppertal with EUR 150,000 in EU contribution.

SpeQtral raised Series A funding for satellite quantum communications.

SBQuantum secured seed funding for diamond quantum magnetometry systems.

AOSense received government support and contracts for atom interferometry sensors.

A 21 August 2026 arXiv preprint compares classical and non-classical photon states for experiments seeking QED vacuum non-linearity, including PVLAS and all-optical four-wave-mixing configurations.

A 21 August 2026 arXiv preprint develops bounds on virtual-distillation success probability, framing the error-mitigation method as a spectral filter and deriving limits from a Slepian concentration operator.

An updated 20 August 2026 arXiv preprint presents fermionic quantum-machine-learning circuit architectures intended to balance trainability, expressivity, classical-simulation hardness, and gradient-evaluation cost.

A new arXiv theory paper studies how measurement feedback and correlated records shape work statistics in a quantum information engine, including a coherence-transition interference contribution.

A new arXiv paper evaluates quantum-jump descriptions of current fluctuations in non-additive open quantum systems and identifies conditions under which imperfect jump detection recovers Landauer-Büttiker results.

A new arXiv paper presents a hybrid workflow that keeps data assimilation and dynamical simulation classical while using a QUBO-to-Ising formulation for quantum-assisted parameter estimation.

Living QAtlas page for public quantum company records.

Living QAtlas page for public-sector quantum programs.

Living QAtlas page connecting companies, funding, research, agencies, and technologies.

QAtlas guide to quantum ecosystem categories and public-source mapping.

QAtlas guide to quantum company and organization profiles.

QAtlas guide to post-quantum security and cryptography signals.