Complete list of Event supplier names

General information for the business: We supply digital media to event companies
Industry: Entertainment
Geographical areas: London
Description of Business Development: In the attached spreadsheet, which has been started, I need the following information for the remaining 47 names:
- Website
- Company Address
- Social Media (Simply Yes ('Y') or No ('N') to the social media channels used - Twitter, FB, Linkedin Instagram is all I care about.
- Contact Number (both landline and mobile if possible)
- Email address
- Comments - in this section a brief description of the company and a key person to contact if you can find it.
Extra notes: Should not take any longer than two hours with a good run at it.
Happy to take questions if necessary.
Looking for the work to be done by end of day.