Horizon Quantum is a Singapore-based quantum software infrastructure company. Its core product is Triple Alpha, an integrated development environment (IDE) for quantum computing that lets developers write, compile, optimize, and deploy quantum programs across multiple hardware platforms. The central problem Horizon addresses is accessibility: today, fewer than a few hundred specialists worldwide can write quantum algorithms from scratch. Triple Alpha aims to let conventional software developers — without deep quantum expertise — program quantum computers. Triple Alpha includes three proprietary languages forming a high-to-low-level stack: Beryllium (object-oriented, previewed in late 2025), Helium (a BASIC-like hybrid classical/quantum language), and Hydrogen (an assembly-level, hardware-agnostic language). A key technical differentiator is Horizon's execution infrastructure, which enables advanced control flow on quantum hardware that doesn't natively support it. Horizon also owns and operates its own quantum hardware testbed in Singapore. Triple Alpha is in early access, and Horizon has not yet generated meaningful revenue. Horizon plans to generate revenue through usage-based pricing for cloud-run quantum jobs and software licensing for on-premises deployments, with a potential third stream from offering cloud access to its own hardware. Target customers include quantum hardware vendors, quantum software developers, and enterprise users in finance, pharma, chemicals, and AI. Horizon's go-to-market strategy emphasizes ecosystem partnerships with hardware vendors — including Rigetti, Alice & Bob, Oxford Quantum Circuits, and QuEra — rather than competing with them, with the goal of making Triple Alpha the default development environment embedded in hardware vendors' ecosystems.