One short form: legal name, website, country and the segment you work in. Everything else can wait.
The same form claims an entry that is already here. Send it from an address on the company’s own domain and the record becomes yours to edit, free, for as long as it exists.
A working website that describes real battery work, a European base and a segment this directory already covers. A trading name that matches a public register entry helps. It is not required.
Three things keep a company out. A website that resells other people’s stock without saying where it comes from. Stock photography and no technical detail. No European operation. A submission that fails gets an answer with the reason in it, so it can be fixed and sent again.