1. O.C.L.L. Snc, Italy. **
2. Officine B.R.G. Srl, Italy. **
3. Ognibene SpA, Italy. **
4. Olona Snc, Italy. **
5. O.M.A.Z. srl, Italy.
6. O.M.C. di Cattini Snc, Italy. **
7. O.M.F.B. SpA, Italy. **
8. Ommas snc, Italy. **
9. Ompi Srl, Italy. **
10. Orsi Group Srl, Italy. **
11. Ortolan Zappatrici Snc, Italy. **