Companies by Prefecture
- Hokkaido 388 companies
- Aomori 71 companies
- Iwate 81 companies
- Miyagi 145 companies
- Akita 62 companies
- Yamagata 75 companies
- Fukushima 121 companies
- Ibaraki 127 companies
- Tochigi 124 companies
- Gunma 121 companies
- Saitama 361 companies
- Chiba 299 companies
- Tokyo 5884 companies
- Kanagawa 615 companies
- Niigata 144 companies
- Toyama 121 companies
- Ishikawa 114 companies
- Fukui 61 companies
- Yamanashi 42 companies
- Nagano 159 companies
- Gifu 130 companies
- Shizuoka 287 companies
- Aichi 732 companies
- Mie 131 companies
- Shiga 100 companies
- Kyoto 204 companies
- Osaka 945 companies
- Hyogo 332 companies
- Nara 21 companies
- Wakayama 32 companies
- Tottori 38 companies
- Shimane 40 companies
- Okayama 121 companies
- Hiroshima 190 companies
- Yamaguchi 90 companies
- Tokushima 39 companies
- Kagawa 109 companies
- Ehime 99 companies
- Kochi 40 companies
- Fukuoka 432 companies
- Saga 54 companies
- Nagasaki 67 companies
- Kumamoto 91 companies
- Oita 70 companies
- Miyazaki 62 companies
- Kagoshima 86 companies
- Okinawa 132 companies