| Компания | Приходи 2010 г. (хил. лв) |
Приходи 2009 г. (хил. лв) |
Изменение | |
| 1 | Information Services Ltd. | 2 065 лв | 837 лв | 147% |
| 2 | ITCE Ltd. | 1 960,4 лв | 2 702,8 лв | -27% |
| 3 | New Horizons Ltd. | 985 лв | 992 лв | -1% |
| 4 | Lirex BG Ltd. | 975 лв | 930 лв | 5% |
| 5 | Siemens IT Solutions and Services 1 | 675 лв | - | - |
| 6 | DZU JSC | 425 лв | - | - |
| 7 | Bulmag JSC | 400 лв | 575 лв | -30% |
| 8 | CNSys Ltd. | 373,5 лв | - | - |
| 9 | Bonev Soft Auditing Ltd. | 301 лв | 473,6 лв | -36% |
| 10 | Sirma Group Holding JSC | 229,5 лв | 150 лв | 53% |
| 11 | CAD R&D Center `Progress` Ltd. | 200 лв | 26 лв | 668% |
| 12 | Aloe Co Ltd. | 198,9 лв | - | - |
| 13 | STEMO Ltd. | 198 лв | 277 лв | -29% |
| 14 | Interconsult Bulgaria Ltd. | 100,4 лв | 303,8 лв | -67% |
| 15 | Microinvest Ltd. | 94,3 лв | 94,3 лв | - |
| 16 | Global Consulting Ltd. | 80,1 лв | 622 лв | -87% |
| 17 | Varna Business Services Ltd. | 68,7 лв | 65,4 лв | 5% |
| 18 | Telecom Business Solutions Ltd. | 60,9 лв | - | - |
| 19 | Borica - Bankservice PLC2 | 59,4 лв | - | - |
| 20 | Stone Computers JSC | 55 лв | 52 лв | 6% |
| 21 | IPT Ltd. (Intellectual Products and Technologies) | 24,7 лв | - | - |
| 22 | Brain Storm Consult Ltd. | 10,6 лв | 6,4 лв | 65% |
| 23 | Kontrax JSC | 5,7 лв | 357 лв | -98% |
| 24 | Computel Ltd. | 2,5 лв | - | - |
