I remember reading about a tech company 20 years or so ago (cant remember the name or industry) that attributed their success to splitting divisions in two when the head count exceeded 600. 600 was the maximum size where everyone knew everybody's name.
My experience is that 100 is a very good size to join. It's small enough that an individual can have an impact, that everyone knows who you are, that stock options mean something, and that you get paid every month.
I think you are talking about BSO-Origin. I worked there for 4 years, and they called divisions "cells" for that reason. I think it worked wonderfully for IT services, and I wonder why other companies didn't adopt that model as well.
BSO-Origin also had something called "Environmental Accounting", where the environmental impact of each project was estimated, and a certain amount was re-invested in environmental projects.
The founder (Eckart Wintzen) was a true visionnaire, and unfortunately he passed away recently. Here is a great article about him, back from the 90s:
My experience is that 100 is a very good size to join. It's small enough that an individual can have an impact, that everyone knows who you are, that stock options mean something, and that you get paid every month.