- 10 Companies at the address Wilhelm-Binder-Straße 15, 78048 Villingen-Schwenningen
- ARCHIVITA GmbH- Villingen-Schwenningen - Management and consultancy services (M70) 
- AltiMed Institut GmbH- Villingen-Schwenningen - Research & Development (M72) 
- Center of Efficiency GmbH- Villingen-Schwenningen - IT (J62) 
- HAUPTWERK GmbH- Villingen-Schwenningen - Wholesale and retail trade of motor vehicles and motorcycles (G45) 
- HAUPTWERK GmbH & Co. KG- Villingen-Schwenningen 
- HAUPTWERK Verwaltungs GmbH- Villingen-Schwenningen - Holdings and financial services (K64) 
- REWISTA RECHTSANWALTSGESELLSCHAFT mbH- Villingen-Schwenningen - Auditors, tax consultants, lawyers (M69) 
- WiBiS GmbH- Villingen-Schwenningen - Real estate (L68) 
- WiBiS OHG Energie & Service- Villingen-Schwenningen 
- evems AG- Villingen-Schwenningen - Electrical equipment (C27)