the directors of a company or other organization hold formal meetings

[kadioguy]

boardroom
NOUN
a large room where the directors of a company or other organization hold formal meetings, usually with one large table around which everyone sits
https://www.macmillandictionary.com/dictionary/british/boardroom
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a. a large room where the directors of a company or other organization hold formal meetings ...
b. a large room where the directors of a company or other organizations hold formal meetings ... [my version]

Do both work and mean the same? I think that "other + plural noun" seems more common.

 

[probus]

In my opinion your version (b) is incorrect.

 

[5jj]

a. a large room where the directors of a company or (an) other organization hold formal meetings ...

.