Ipsos is an EAP company that started earlier in China. Have a strong academic background, but also academic, professional but lifeless, and the service is not lively enough.
Shengxin Sunshine is a Sino-foreign joint venture, and most of its business is in Beijing, which is not good for the whole country.
The only famous EAP service center in China was established after Dr. Zhu Xiaoping returned to China. He has rich experience in EAP theory and practice, and the companies he has served are Johnson & Johnson, Alcoa, Agilent, China Mobile, Bank of China, Vanke, Maersk, Rio Tinto and other well-known companies.
In terms of ranking, Ipsos is the first, followed by China EAP Service Center and Shengxin Sunshine.