To verify a technical company in Shenzhen, follow these steps:

1. **Company Information Check**: Start by researching the company’s name or website. Make sure you have the official business registration number (such as “9138010XXN”), which is unique to each company.

2. **Online Reputation Check**: Utilize online search engines like Google, Bing, or Baidu to check reviews, ratings, and news articles about the company.

3. **Industry Certification Verification**: If the company specializes in a specific technology or industry, verify that they hold the relevant certifications from recognized bodies.

4. **Contact the Company Directly**: Finally, if all checks pass, you can attempt to contact the company directly through their official email address, phone number, or customer service portal.

Remember, verifying a technical company requires due diligence and cannot be entirely guaranteed without physical inspection or direct contact.