In the Hong Kong Free Enterprise Zone they own contracts for fire and medical service and cooperate with DocWagon. They also cooperate with Ares Macrotechnology and Evo for crisis reaction plans for desasters like mega-taifuns. SINless people dislike the corp for it's slow reactions on fires and general emergency calls in Kwoloon and the practise of sending patients without proper insurances to clinics with bad reputation. The Red Dragon Triad is deeply involved with them and instrumentalized the Hong Kong Branch of Yokogawa Fire for their protection rackets. In their Japanese home turf Yokogawa has relations with the Kodachi-gumi of the Yakuza for the same reasons. The 289s Hong Kong Triad - on the other hand - tend to attack Yokogawa's rescue teams to steal drugs and equipment. - This may lead to a Triad-war between them and the Red Dragons.
Its subsidiaries include
- Emeral Crisis Management
- NPI Instruments
- Yokogawa Fire
- exterritorial business zone in the Republic of Québec