Research and experimental development in the field of social sciences and humanities
- 72.20 — Research and experimental development in the field of social sciences and humanities
- 77.40 — Leasing of intellectual property and similar products, except for works protected by copyright
- 82.30 — Organization of congresses and trade fairs
- 82.91 — Activity of agencies for the collection of payments and credit bureaus
- 82.99 — Provision of other commercial services subsidiary, n.v.d.g.
- 59.20 — The edition of sound recordings
- 63.99 — Other information services n.v.d.g.