The Ningxia region is known for its vibrant culture and diverse economy. One aspect of the Ningxia region that has made it a hub of technological innovation is the presence of numerous large and medium-sized technology companies based in the region.

Some of the most popular technological companies based in Ningxia include:

1. ZTE Corporation: ZTE is one of the largest smartphone manufacturers in the world, with facilities located throughout the Ningxia region.

2. China Mobile Communications Corporation: China Mobile, a leading mobile telecommunications service provider in China, has its headquarters and primary manufacturing facility located in the Ningxia region.

3. Huawei Technologies Co., Ltd.: Huawei, a multinational technology company headquartered in Shenzhen, China, has its primary manufacturing facilities and headquarters located in the Ningxia region.

4. ZTE Corporation: ZTE is one of the largest smartphone manufacturers in the world, with facilities located throughout the Xinjiang region.

5. ZTE Corporation: ZTE is one of the largest smartphone manufacturers in the world, with facilities located throughout the Xinjiang region.

6. Xiaomi Group Co., Ltd.: Xiaomi, a Chinese multinational technology company headquartered in Beijing, China, has its headquarters and primary manufacturing facilities located in the Xinjiang region.

7. Baidu Technology Co., Ltd.: Baidu, a Chinese multinational technology company headquartered in Beijing, China, has its headquarters and primary manufacturing facilities located in the Xinjiang region.

8. HUAWEI Cloud Services Company Limited: HUAWEI Cloud Services Company Limited is a subsidiary of HUAWEI Corporation, based in Shenzhen, China, with its headquarters located in the Xinjiang region.

9. ZTE Corporation: ZTE is one of the largest smartphone manufacturers in the world, with facilities located throughout the Xinjiang region.

10. China Mobile Communications Corporation: China Mobile, a leading mobile telecommunications service provider in China, has its headquarters and primary manufacturing facilities located in the Xinjiang region.

These are just a few examples of some of the most popular technological companies based in Ningxia. The specific companies that make up this list may vary depending on factors such as industry, size, and location of their facilities.