1.

OPNTEC

2.

Opsdata 1999

3.

Opterna

4.

opticoatindia 1987-06-06

5.

OptimEyes AI 2016.0

6.

Optometristen Vereniging Nederland

7.

Opus 9-13

8.

ORANGEFOX 2017.0

9.

Orbisk 08.01.2018

10.

Orbita Capital Partners

11.

Orca Hub

12.

Orevon Partners