I need a system to calculate email addresses when supplied name, co name and website.

General information for the business: We provide corporate wellbeing services and develop web based health and safety software systems.
Kind of development: New program from scratch
Num. of modules: 1
Description of every module: Will supply data in excel spreadsheet with the following information:
1. Full name
2. Company name
3. Web-site.
4. Location (country)

I will need the following:
To search the web search engines and populate the spreadsheet with the email address. This will need to be the United Kingdom email address and not the US one, unless it is the US address they use in the United Kingdom. Will need to search the UK web search engines.
Description of requirements/functionality: Will supply data in excel spreadsheet with the following information:
1. Full name
2. Company name
3. Web-site.
4. Location (country)

I will need the following:
To search the web search engines and populate the spreadsheet with the email address. This will need to be the United Kingdom email address and not the US one, unless it is the US address they use in the United Kingdom. Will need to search the UK web search engines.
OS requirements: Windows
Extra notes: