Liveplan - LivePlan helps entrepreneurs and small-to-medium size business owners build dynamic business plans and track performance against their goals.
productboard - Beautiful and powerful product management.
Bizplan - Modern business planning for startups
Aha - Aha! is the new way to create visual product roadmaps. Web-based product management tools and roadmapping software for agile product managers.
IdeaBuddy - Innovative business planning software
ProdPad - ProdPad helps your team gather ideas, surface the best ones and turn them into product specs, and then put it all on a product roadmap.