CRPS does not publish a stable person identifier. This page is scoped to roles for one company; same-name records at other companies are kept separate.
Efdal Guner Guckiran owns 51% of Gectak, which earned 36,000€ in 2025.
Source: CRPS persons in company and company shares, fetched 15 Jun 2026. Direct registry relationships only. CRPS registry ↗