Niumba

Niumba is an online marketplace for arranging or offering lodging, primarily homestays. The website has 334,000 listings, 22% of which are located in Spain. 
It is a subsidiary of TripAdvisor.
History.
Niumba was formed in 2005 by Grupo Intercom, a Barcelona based business incubator, with María José González-Barros as the co-founder.
In 2013, it was acquired by TripAdvisor.