List UK IT Consultancies

I need the list of all UK companies working in the below fields:
IT consultancies
IT outsourcing companies
IT cloud management companies (cloud and data engineering)
IT Cyber Security companies
IT Support, Networking, VOIP, Telecom, Firewalls, Cabling, Software, OS providers
IT Cloud Implementation, Automation and Migrations
IT Digital Transformation agencies
IT Software providers and developer companies

The list should include:
contact phone number
email addresses
physical address
contact names (if possible).

It should be an Excel file.