STRUCTURE
| Company name | Sigma Corporation |
| CEO | Kazuto Yamaki |
| Business contents | Interchangeable lenses,Digital cameras,Electronic Flash etc. |
| Establishment | September 9, 1961 |
| Incorporated | March 8, 1968 |
| Capital | 100 million yen |
| Annual Turnover | 53,480,890,000 yen (As of August 2024) |
| Oversea subsidiaries | America |
| Germany | |
| France | |
| Benelux | |
| Hong Kong | |
| United Kingdom | |
| China | |
| Nordic (Sweden based) |
| Overseas sales network in addition to above | Canada |
| Italy | |
| Switzerland | |
| South Korea | |
| Taiwan | |
| Australia | |
| ( total of about 85 countries and regions as of December 2024) |
LOCATION
| Head Office | 2-8-15 Kurigi, Asao-ku, Kawasaki-shi, |
| Kanagawa 215-0033 Japan | |
| tel.: 81-44-989-7430 | |
| Customer Support Center | 2-8-15 Kurigi, Asao-ku, Kawasaki-shi, |
| Kanagawa 215-0033 Japan | |
| tel.: 81-44-989-7430 | |
| Aizu Factory | 6594 Aza-Nitchizaka, Ohaza-Ohtani, |
| Bandai-Machi, Yama-gun, | |
| Fukushima prefecture 969-3395 | |
| tel.: 81-242-73-2771 | |
| fax.: 81-242-73-3382 |