What more information do you need?
I am a lawyer but no longer in practice. I now work in legal publishing and I am updating some procedural guides for litigators on enforcement of judgments. The current version says "In the County Court, warrants are executed by bailiffs, who are employees of HM Court Services." I assume they are now to be known as "enforcement agents" but am not sure if they are still employed by the HM Court Service or whether they are now like High Court enforcement agents and largely employed by civil agencies.