- 12 Companies at the address Aachener Straße 1042 a, 50858 Köln
- Andreae & Mayer GmbH- Köln - Management and consultancy services (M70) 
- Enterofagos GmbH- Köln - Foodstuffs (C10) 
- Mayer Anlagen-Verwaltungsgesellschaft mbH- Köln - Holdings and financial services (K64) 
- Pauly Snacks GmbH- Köln - Wholesale trade (G46) 
- Pfeifer & Langen Auslandsbeteiligungen GmbH- Köln - Holdings and financial services (K64) 
- Pfeifer & Langen Beteiligungsgesellschaft mbH- Köln - Holdings and financial services (K64) 
- Pfeifer & Langen Familienholding Innovation Capital GmbH- Köln - Holdings and financial services (K64) 
- Pfeifer & Langen GmbH & Co. KG- Köln 
- Pfeifer & Langen IP GmbH- Köln - Management and consultancy services (M70) 
- Pfeifer & Langen Industrie- und Handels-KG- Köln 
- Pfeifer & Langen Logistik GmbH- Köln - Logistics (H52) 
- Pfeifer & Langen Zucker-Beteiligungen GmbH- Köln - Holdings and financial services (K64)