LinkedIn is a business and employment-focused social media platform that works through websites and mobile apps. Launched on May 5, 2003, owned by Microsoft. The platform is primarily used for professional networking and career development, and allows job seekers to post their CVs and employers to post jobs. From 2015 most of the company's revenue came from selling access to information about its members to recruiters and sales professionals. Since December 2016, it has been a wholly owned subsidiary of Microsoft. As of February 2022, LinkedIn has 830+ million registered members from over 200 countries and territories.

Wantedly is a Tokyo-based startup that uses the web to make work the most exciting it’s ever been.Wantedly is a social recruiting platform that allows users to find interesting jobs based on their social graphs.To make this happen,Wantedly has created a platform where people and companies meet based on passion and values, rather than money or benefits

JOBJACK is an online platform bridging the gap between job seekers and job providers by creating access and automating the entire entry-level recruitment process.