Construct a semantic core

Requires the services of a specialist in the preparation of the semantic core of the site. It is necessary to make a semantic core of the company's sites for wholesale music, lighting, sound equipment, switching, etc. German company Schulz and its partner companies.
The target audience is suppliers, dealers, partners, representatives. The sale is wholesale.
All production is strictly Germany (no China).
One site is geared towards equipment.
The other is switching, wires, adapters, etc.