Best Organic European Flour

Hi Guys, I own a small artisan (hate that much abused term) bakery in Ireland. Currently I source all my flour from Shipton Mill and Doves Farm in the UK but due to Brexit it seems that I will no longer be able to import goods from the UK. Currently I import around 15 tons of 12% white flour and a mix of malthouse, wholemeal, spelt, rye, ect. My only option is to import from mainland europe, France and the Netherlands would be most cost effective in terms of haulage. 

So I'm wondering if anyone here could recommend some good mills in western europe?

Kind regards,

Adam