Postquant Labs (operating as Hadamard Gate Inc dba Postquant Labs) is a post-quantum infrastructure and consulting company that helps organizations protect their assets from quantum computer threats. Its services span two main areas: Quantum Acceleration, which involves pilot studies and analysis to identify optimal quantum computing solutions for accelerating client workloads, and Post-Quantum Cryptography, which involves benchmarking quantum-resistant signatures, auditing existing processes for security leverage points, and migrating clients to battle-tested post-quantum cryptographic solutions. The company is led by CEO Colton Dillion, a veteran of cryptographic products including secure messaging and non-custodial MPC wallets (co-founder of Hedgehog, YC S21), and CTO Dr. Richard Carback, a security researcher known for co-building Scantegrity II and co-founding the XX Network, a quantum-resistant blockchain ecosystem. The company also builds and operates Quip Network, a decentralized marketplace for quantum compute that connects quantum processors, classical validators, and algorithm designers while providing quantum-resistant asset protection for transaction networks, and maintains the Quantum Doomsday Clock, an awareness initiative tracking the quantum computing threat to modern cryptography. Clients appear to include businesses and blockchain/transaction networks seeking to protect digital assets ahead of the anticipated arrival of cryptographically-relevant quantum computers ("Q-Day").