| Name | : Pirttilä & luotonen open systems |
| Business Number | : 1523058-9 |
| Category | : Partnership |
| Primary language | : Finnish |
| Place of taxation | : Tampere  | Date of registration | : 28/04/1999 |
| Activity | : Software consultancy and supply |
| Alias | : Pirttilä & Luotonen Open Systems, Pirttilä & Luotonen & Hannunen Open Systems |