I don't think there are any European companies manufacturing HDDs themselves. Some, for example German Intenso, sell HDDs under their name, but the actual manufacturer will be a different one. For SSDs, there's Swissbit and Goodram.

I’m not aware of any EU companies that actually manufacture drives. Just a few like Synology who rebadge JP made drives.

https://www.goodram.com/en/categories/consumer/consumer-ssd-en/

All European fediverse instance admins should look at this!

Remember, a local backup isn't a real backup. I have setup a storage system with my brother. He stores his stuff on my server and I store my stuff on his. All encrypted and synced daily, plus we do periodic verify to prevent bit rot. When we need expansion we pool our money and both expand our servers the same amount.

Europe and manufacturing in one sentence? That is not possible!

I came to suggest HGST but apparently I've been living under a rock, it's been sold to WD over a decade ago. And yes, I know Hitachi is not European. Brand name is still around and the drives seem to be pretty decent, but they (too) are owned by US company and manufactured in China/Thailand.