1, Zhiyuan OA system: Founded in 2002, Zhiyuan Internet is a high-tech enterprise focusing on collaborative management software, providing customers with professional collaborative management software products, solutions, platforms and cloud services, with more than 10000 government agencies, enterprises and customers.

2. Pan-micro OA system: it is a well-known brand in the field of collaborative management software. The products of mobile office OA industry cover a series of collaborative management software products, covering all kinds of organizations and personalized application scenarios.

3. Lanling OA system: Lanling is a professional digital service provider in China, focusing on the field of smart office, committed to empowering and innovating enterprise organizations, successfully serving many Fortune 500 enterprises to realize digital transformation, and providing integrated solutions such as smart office, mobile portal, knowledge management, contract management, digital operation and financial enjoyment.

4. Huatian Electric Power OA System: An earlier domestic enterprise engaged in OA research and development in collaboration software provides users with advanced collaborative office platforms and solutions, and is committed to integrated management of business, office and decision-making.

5. Wan Hu OA system: Wan Hu Internet is committed to the field of enterprise collaborative management informationization, providing intelligent interconnection solutions for enterprise information systems, covering unified portal, business integration, collaborative office, triple and one big, supervision and supervision, etc.