Abstract: A modular well intervention assembly includes a jack assembly having increased stroke length that can be installed directly over a well or above a BOP assembly. Modular work platforms and a telescoping mast assembly can be installed and secured in place around the jack assembly. Tongs can be suspended from a hydraulically operated “track system”, eliminating the need for a conventional tong pole and spring. Pipe can be manipulated relative to the well intervention assembly using a hydraulically powered pipe handling device.