To verify a technical company operating in Chongqing, you would typically follow these steps:

1. **Check the Business Registration**: The first step is to find information about the company on official government platforms, such as the Chongqing Enterprise Information Query System.

2. **Review the Company Certificate**: Look for any valid business license or registration certificate issued by the Chongqing Administration Bureau.

3. **Check Online Reviews and Ratings**: Visit websites like “CQBusiness” or review platforms to see if other customers have left feedback about the company.

4. **Contact the Company Directly**: If you still have doubts, consider contacting the company directly via phone or email to inquire about their verification status.

Remember that verifying a technical company in Chongqing is essential for ensuring the authenticity and reliability of the business.