Google Custom Search - Google Custom Search enables you to create a search engine for your website, your blog, or a collection of websites.
mention - Media monitoring made easy with Mention. Create alerts on your name, brand, competitors and be informed in real-time of any mention on the web and social networks
Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
TVEyes - Founded in 1999, TVEyes' mission is to be the global search engine for TV and radio coverage. No matter where it appears in the world, if it aired on TV, you’ll find it on TVEyes.
Klevu - Klevu offers instant site search solution for eCommerce stores.
Critical Mention - Track. Measure. Share. Grow.