As the site name implies, Data Discoverers is a site developed by four students from NYU's Stern Business School. It is considered as your broker to crowdsourcing technology.
United States of America
The best thing about Data Discoverers is that the they were able to "cut the costs of in-house data collection by more than 50% and have increased the speed of data collection tasks by 10 times".
Data Discoverers manage crowdsourced projects for clients at a faster and more cost-effective rate. Their strategic position enables them to reduce their clients' cost by up to 60%, cut their processing time in half, and offer a workforce-in-demand.