Easol, the leading experience commerce platform, is announcing an investment of $25 million from Tiger Global with participation from existing investors Notion Capital, Foundation Capital, Y Combinator and FMZ Ventures led by Michael Zeisser, the former Chairman of US investments at Alibaba who is also joining the board. According to CrunchBase, this will be the fifth largest Series A fundraise of all time for a UK-based SaaS company*.