WeWork has acquired digital visitor sign-in system developer Welkio less than six months after it was spun out of consulting agency Hathway with $400,000.

Welkio, a US-based spinout of consulting agency Hathway that has developed a mobile sign-in platform for visitors, was acquired by workspace provider WeWork on Friday for an undisclosed amount.

Founded by Hathway employees DJ Tarazona and Florent Ferere, Welkio has created a mobile visitor sign-in system for buildings that can be used to collect and store names, e-mail addresses, photos and signatures. It was publicly launched in October 2015 with $400,000 of pre-seed funding from Hathway.

The acquisition is WeWork’s second and follows the $430m in series F funding it raised at a $16bn valuation earlier this month.

WeWork said in a blog post announcing the purchase: “This is only the beginning of our technological growth as a company – a journey we look forward to embarking on in the year ahead as we continue to find the greatest teams and partners to build more valuable spaces and help our members be more successful.

“With Welkio’s ability to help modernize the workplace in this simple and effective way, we know the product will strengthen the WeWork member experience worldwide, and we are excited to work together to take the product to another level.”