Durham Large Business Directory

I need a comprehensive directory of every company in Durham and the surrounding area that employs at least 200 people. Businesses with international operations or ownership are especially valuable, but I still want any qualifying firm even if it is purely UK-focused.

For each company, place one row in a Google Sheet and capture:
• Contact details (main telephone number, generic email or contact form link, and the website URL)
• Latest head-count figure, confirmed to be 200+ accept if just under like 188 or 190.
• Physical headquarters address (street, city, postcode, country)

All sectors are in scope, so don’t limit the search to technology, manufacturing, or healthcare alone—include any industry as long as the staff threshold is met.

Please keep the sheet well-structured with clear column headers, include the source link you used for each data point, and make sure everything is up to date.

Before payment will be made Tuesday 5th May test calls will be made to make sure list is accurate. This is because we already hired and someone made a list up and not usable.