On-demand event space start-up 'thisopenspace' launched in New York City last month, and is now expanding across the United States. The Canadian start-up, founded by Yashar Nejati in 2016, now has more than 500 locations across the five boroughs of New York. Nejati says the company's open marketplace stands out because it allows multiple retailers--with no previous brick-and-mortar position--inside their pop-up. 'Thisopenspace' is also recently launched a $30,000 Space Fund to fuel start-ups featured in their spaces. The company has yet to disclose VC funding.