Company Contact Details Research

I'm seeking an expert in data mining and research to find contact details for a list of companies. The data will be provided to you in a spreadsheet.

Key Requirements:
- Find Email, Phone number, Mailing address, website and LinkedIn details for the provided company names
- Use the provided data as your primary source
- Proficient in spreadsheet software (Excel, Google Sheets)

Ideal Skills:
- Strong data mining skills
- Attention to detail
- Good knowledge of LinkedIn
- Experience with Excel and Google Sheets

Please ensure that the contact details are accurate and comprehensive. Thank you.