Alibaba is a Chinese multinational technology company with multiple subsidiaries and brands.

The following are Alibaba's main branches and brands:

1. Alibaba Group: Alibaba's parent company, which owns Taobao, Tmall, Alibaba Cloud, Cainiao Network and other brands and businesses.

2. Taobao: China's largest online shopping platform, providing transaction services between consumers and merchants.

3. Tmall: Alibaba's high-end e-commerce platform, providing online shopping services including clothing, home furnishings, digital products and other categories.

4. Alibaba Cloud: Alibaba's cloud computing service provider, providing services including cloud computing, big data, artificial intelligence, etc.

5. Cainiao Network: Alibaba's logistics service provider, providing global intelligent logistics services.

6. Alimama: Alibaba's digital marketing platform, providing services including search engine marketing, display advertising, information flow advertising, etc.

7. Alibaba International Station: Alibaba's international business platform, providing transaction services for global buyers and sellers.

In addition to the above major branches and brands, Alibaba also has many other subsidiaries and brands, covering e-commerce, finance, culture and entertainment, sports, medical health and other fields.