An effective way of sourcing new leads for your business is by looking for
companies that are similar to your existing customers. Similar both in terms of
size, but also market--essentially going after your customer's competitors.

Clearbit's Discovery API [https://clearbit.com/discovery] can help you find
these leads programatically using our clustering algorithms to search for
similar companies. Our most successful outbound campaign to date has been
powered by a similar lead list.

For example