Tercera supplies web-based software for the Environmental Act, serves as an advisory body to the government and specializes in the digitization of spatial plans. Tercera is the first company to develop a working digital link via software with the National Facility for Publication (LVBB). Since 2001, Tercera has been involved in digitizing and co-drafted five practice guidelines (PRPP2006, PRpSV2008, PRPV2008, PRPT2012 and PRSV2012). The organization serves more than 130 authorities, including all provinces, three water boards and a Ministry. Examples of customers are the province of South Holland and the municipality of Haarlemmermeer.