IRRO-Reisen LTE Leave To Explore
- Bus operator based between Berlin and Hamburg. Suggested itineraries for hires and all inclusive group offers across several countries.
- http://www.irro-incoming.com

Custom Tours Europe
- Company offering custom itineraries for groups with our without special interest. Based in the UK.
- http://www.customtourseurope.com

European Connoisseurs Travel
- Group tour operator selling short breaks to Europe to UK-based company employees, clubs and societies. Also offer a wholesale service to the group travel trade. Based in Bath, UK.
- http://www.ecttravel.com

Travel Tours Agency - Student Tours in Europe
- A Switzerland based wholesale tour operator providing educational student group tours in Europe. Specialization in catholic tours, student tours, leisure tours and special interest travel for groups.
- http://www.studenttours.com

Rondo Travel
- Travel company organising group visits in Europe for schools, colleges, universities and adults. Based in England.
- http://www.rondotravel.co.uk