After a few years I still use Listary as my main search/launcher. It's very quick, has a very nice look and great system of filters and projects. There are problem with new version to be released, but I'm talking about version number 5.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Omnigo - Omnigo ensures a safer tomorrow by delivering security management, incident reporting, and public safety software for law enforcement, education, dispatch, and more
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
Mobotix - MOBOTIX offer uncompromisingly reliable products that keep unique events in the field of view - even when the surrounding conditions are bitterly cold, hot or explosive.
Wox - An effective launcher for windows. A full-featured launcher, access programs and web contents as you type. Be more productive ever since. Wox is free for use and open-sourced at Github, Try it now! Download .
Silvertrac Software - Real-time incident reporting software, guard tour system, and security officer management for in-house & contract security teams.