In Star Trek: Insurrection, Son'a fly some very powerful high-tech ships and in general boast a high-tech base/infrastructure.
But, as we find out (quoting Wiki)
The Son'a are a breakaway faction of younger Ba'ku who a century previously, wanted to give up their bucolic existence and re-embrace the use of technology.
While Ba'ku obviously possess a great deal of technical expertise, having come originally from a high-tech civilization, there are VERY few of them.
Therefore, Son'a - whom there are then even fewer - somehow, with almost no people, managed to rebuild an extremely powerful tech base (including starships rivaling Enterprise, RoboMaid, etc...) in only 100 years.
Is there any explanation in canon for how they managed that organizational (not technological) feat?