Naylor Boxwood - Boxwood provides an e-mentoring system, mobile-optimized job board and career center Facebook application.
Cocorico - Cocorico is a state-of-the art Open Source solution to create an Airbnb or Blablacar for anything.
Jobiqo - Jobiqo is an Austrian-based company providing job board software solutions to companies.
MarketplaceKit - MarketplaceKit is a platform for building different types of online marketplaces.
Adicio - Adicio develops interactive classified advertising software solutions for job boards, real estate, and automotive markets.
Sharetribe - Build your online marketplace business. You don't need a developer.