Deutsche Telekom-backed 9Flats and Rocket Internet-backed Wimdu are set to merge and will form an online accommodation platform with an estimated 500,000 listings.

Short-term accommodation marketplaces Wimdu and 9Flats.com, the latter backed by telecommunications group Deutsche Telekom, have agreed a merger, WiWo reported yesterday.

Wimdu was founded in 2011 and received $90m in funding from e-commerce holding group Rocket Internet and investment firm Kinnevik the same year. It has more than 1 million registered users and oversees a network of 300,000 properties across 100 countries.

Founded, like Wimdu, in Germany in 2011, 9Flats operates a marketplace made up of some 200,000 properties spanning…