Flite Software (Flite Software N.I. Ltd.) is a specialist hydraulic engineering software company established in 1984 and based in Londonderry, Northern Ireland. Its main off-the-shelf product is FluidFlow, a pipe system design and analysis application, and it also develops component-based technology for fluid equipment selection and configuration software. It also provides training and support services. Its software is used by over 1,000 companies in more than 20 industries worldwide.