Builtwith has sort of been the industry standard for providing data about websites and their technologies. The Australian company has been around since 2007 according to Crunchbase. They consistently crawl the web to see which companies and websites use specific technologies. For example, you might want to know which companies use Marketo or Hubspot.
Recently, Datanyze launched. They focused not just on crawling the www for technologies, but crawling them every single day. This is helpful for sales people because you can find out which companies are testing out your competitors’ products and then offer your services as well. For example, let’s say you are a lesser known marketing automation SaaS like LoopFuse. Wouldn’t it be interesting for you to see which companies are testing out the Marketo solution?
Today, Builtwith launched their version of this solution with the featured called “Builtwith Alerts” – You can see more information . We recently added a new feature to our Enterprise solution that allows users to select specific technologies when creating/exporting our company and people lists. So you not only get to find out which websites are using what, but you also get to download specific executives.