On 2 May 2008 Colin Llewellyn celebrated 20 years of service as the Chief Executive Officer of Presbyterian Social Services. The milestone was commemorated with a lunch with his wife Rosalie Llewellyn, Executive committee members and fellow staff held on 8 May 2008. He was thanked for his loyal dedicated service to the ministries of Presbyterian Social Services and for making such a difference to the lives of so many people.