To verify a technical company in Haicheng, a systematic approach can be followed:

1. **Company Registration**: Start by verifying if the company is registered with the appropriate local authorities, such as Haicheng Bureau of Industry and Information.

2. **Online Presence**: Check the company’s official website or any recognized business platforms to see if it has a valid presence in Haicheng.

3. **Reviews & Feedback**: Look for reviews from previous clients or online rating systems to gauge the company’s reputation in Haicheng.

4. **Industry Certifications**: Verify if the technical company is certified by relevant professional organizations, which indicate their competence and adherence to industry standards.

By following these steps, you can effectively verify a technical company in Haicheng.