Advice on pension entitlements

I am a 45-year-old accountant working for a large multinational firm and earning €150,000. I am paying 25 per cent of my salary into my pension – a defined contribution scheme – and have paid contributions into this scheme for the last 20 years. I plan to retire early but, before doing so, would like to find out what my entitlements are under the scheme and what the value of my pension is ...