Quantropi is a cybersecurity company focused on post-quantum cryptography (PQC) and quantum-secure communications. The company develops and offers the QiSpace™ platform, which provides encryption and entropy services designed to protect data, IoT devices, and network communications against threats posed by quantum computing — a risk horizon the company refers to as "Y2Q." The QiSpace™ platform is built around three product families: - MASQ™: A post-quantum cryptography (PQC) library offering digital signatures and public key operations, positioned as a NIST PQC candidate with small key/signature sizes. - QEEP™: A quantum-secure symmetric encryption solution designed to bridge classical and quantum systems, claimed to be faster than AES-256. - SEQUR™: Quantum entropy services enabling synchronized quantum-secure key distribution (Digital QKD) over existing networks. Quantropi also offers specific solutions built on QiSpace™, including a Quantum Secure Boot Loader (uLoadXLQ) for IoT devices, a QiSpace™ SEQUR PPK Generator browser extension for quantum-securing IPsec VPNs, and a TrUE TLS upgrade for quantum-securing TLS 1.3 transport layer communications. The company targets use cases where lightweight, resource-efficient cryptography is critical, particularly in the IoT space where compute and memory constraints limit traditional encryption. Their platform is designed to operate on today's existing internet infrastructure without requiring new hardware. Quantropi addresses the "Harvest Now, Decrypt Later" threat model, where adversaries collect encrypted data today to decrypt it once quantum computing matures.