Under the Information and Consultation of Employees Regulations 2004 (ICE), there are rights to employee information and consultation if you work for a company or organisation with more than 50 employees. Where the number varies, this is calculated as an average over the last 12 months. Some employers could choose to count part-time employees (those contracted to work 75 hours or less in a month) as half an employee for the purposes of this calculation.
The Regulations apply to public or private undertakings 'carrying out an economic activity, whether or not operating for gain'.
If you are unclear whether you are covered by the Regulations, you should seek advice from your union if you have one.
Even if you work for an undertaking carrying out economic activity and with the required numbers of employees, these rights are still not given automatically. Various processes need to be followed to obtain these rights. In particular, groups of employees will need to trigger negotiations with employers.