Zettazip Ltd develops a high-performance lossless compression and query engine purpose-built for financial market data. Its type-aware codec produces far smaller archives than general-purpose compressors on tick data, order books, and time-series feeds, and its query engine runs directly on the compressed form, returning only the data each question needs without unpacking the archive first. Distributed as a native library for Linux, Windows, and macOS with a command-line interface, it drops into existing data pipelines and storage workflows without migration to a proprietary format.