Verifying a trade company in Beijing typically involves a series of steps. Here’s an outline:

1. **Company Registry Check**: Start by accessing the Beijing Municipal Corporate Affairs Bureau (MCAB) website. This is where official records of registered companies are maintained.

2. **Company Name Search**: Input the name of the company you wish to verify. The system will display any existing companies with a similar or identical name.

3. **Legal Entity Verification**: If the company you’re looking for matches the search results, you’ll need to obtain more detailed information. This might involve requesting the company’s registration certificate or business license.

4. **Third-Party Verifiers**: If you don’t have direct access to MCAB or other official channels, you may consider using a certified company verification service. These services often provide faster and more reliable results.

Remember that the process may vary slightly depending on the specific needs of your situation.