The search results do not provide specific information about E.R Services Group from the URLs provided. However, there are other companies with similar names: - ER Services LTD offers construction installation, painting, private security, and cleaning services[1]. - ersg is a recruiter specializing in the energy and infrastructure sectors, known for quality, responsiveness, and collaboration[2][4]. - ER Services Group is mentioned as operating in the training industry, but details are limited[3]. Without direct access to the specific company's website or LinkedIn page, it's challenging to provide precise details about E.R Services Group's services or target audience.