For work questions, I 'd like to hear your suggestions [for a moment]

I recently resigned from my job at home. The more I watched the Olympics, the more I found my job, and the more I threw away my company.
Currently, we are mainly optimistic about the two companies, with the same treatment. You can help us with the following:

1. US-funded radio and television companies are mainly engaged in Video-related software development. At the early stage of development, there are currently about 50 people, and American investors are very famous in the industry.
2. Private enterprises cooperate with telecom equipment manufacturers in the 3G network management project. Due to the project relationship, it is urgent to expand the number to about 40 people.

Analysis:
1. The company's strength is relatively strong and stable. There are many foreign projects and work for 10 minutes. I am worried that the level of the field is narrow, many rely on hardware, and there is little space for software.
2. The company is relatively small and has poor stability, but can cooperate with large telecom hardware manufacturers to accumulate some big project experience.

I haven't changed my job for a long time. Please give me some suggestions. Thank you!