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.

True Talents For China (TTC) is a digital and intelligent professional talent service company that provides digital platforms, business platforms, data platforms, enterprise cloud services, and other services.

HireArt is an online recruitment platform that engages in the pre-screening process for suitable job seekers. It improves the job candidate's pre-screening process by creating online interviews that simulate a real job. The candidates are asked to complete tasks that are similar to what they would encounter on the job