Looking for data on Poland

Dear Searchers, I have recently started looking into the Polish market and its potential for a Search Fund.

My work experience lies in energy & sustainability - hence my first exercise will be to try and see how many companies are operating in this space, trying to focus on the SMEs.

I was pretty sure I could easily find some quality data with regards to energy at least (sustainability is a bit more tricky as it falls under many definitions) but in fact I have not been able to find much yet.

In case any of you has any data, or any suggestion on how to approach this (in the absence of good data), I'd be thrilled to learn. Thanks !!

Marcello