Gengo - People-powered translation at scale.

Crowdin - Localize your product in a seamless way

Clickworker - Clickworker is a leading micro tasking marketplace, catering data management and web research services as well as AI algorithms training.

POEditor - The translation and localization management platform that's easy to use *and* affordable!

Rev.com - Transcriptions, captions, and subtitles that are affordable, fast, and high-quality.

Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.