Where are the major NIRS device manufactures? You can see from the map below.
There are NIRS manufactures in US, Japan, Europe and Korea.
If you are a NIRS manufacture and would like to add to this list, please let me know (leave a comment in this post).
If you are interested in creating a map like this, please let me know (leave a comment in this post).
Related: NIRS manufactures products https://www.alivelearn.net/?p=1335