DuckDuckGo: Bang - Search thousands of sites directly from DuckDuckGo
DuckDuckGo Privacy App & Extension - Privacy, simplified. Available on all major platforms.
Land Ho! - Incognito search where you maintain your own search history.
Searx - Open source metasearch engine
Chataco - The social network for an easy, fun, objective internet
Search Encrypt - Search Encrypt was designed from the ground up with privacy as its core value. Search Encrypt protects your privacy by encrypting your search terms, expiring your browsing history, and forcing advanced SSL encryption