The ranking drew from an initial pool of over 7,000 of the Asia-Pacific's largest and most influential companies. A rigorous three-step methodology was applied to identify the Top 500.

Companies were eligible for consideration if they had a significant operational presence in the Asia-Pacific region. Headquarters did not need to be located in APAC; however, companies were required to employ at least 1,000 people in the region and maintain operational sites in at least two of the following APAC markets: Australia, Hong Kong, India, Indonesia, Japan, China, Macau, Malaysia, New Zealand, the Philippines, Singapore, South Korea, Taiwan, Thailand, and Vietnam.

The survey was conducted using several online access panels to guarantee a representative sample of employees across the region. Participants were asked, through an open-ended question with an auto-complete function, to name their current employer. This method ensures neutrality and prevents companies from influencing the selection of respondents. The survey gathered a representative sample of over 80,000 employees, including both part-time and full-time employees in the region.