Is this list just for generic web hosting, or is e-commerce hosting also in scope? I ask because Volusion, an e-commerce host, charges $89 per year for its own CA or a $99 fee to bring your own certificate. (Source) I haven’t asked support whether installation of a renewed certificate for the same SAN set from the same CA also incurs the $99 fee; if it does, renewal every 73 days becomes cost-prohibitive.
@PinoBatch HostGator also charges a similar fee, and it’s very annoying.
If you’re looking for an e-commerce provider that does support Let’s Encrypt, Shopify is probably the most popular one. I’ll add it to the list.
EDIT: in the interest of being fair, I reviewed SitePoint’s top 10 list of ecommerce providers for others that might support Let’s Encrypt. In addition to Shopify, both Wix and Squarespace integrate with Let’s Encrypt and were already listed. Additionally, BigCommerce offers free SSL certificates, but they are supplied by Symantec’s Encryption Everywhere program.
@Bashar anyone with Trust Level 1 can edit posts. A moderator night notice your post and grant you the permission, but if not, just visit some posts for a few days and hit the Like button on a few useful posts and you will be automatically granted access.
You could also add the Polish shared hosting provider Vipserv. Here’s their knowledge base article outlining Let’s Encrypt support (in Polish). In essence, one just chooses to enable HTTPS for a given (sub)domain hosted there and selects Let’s Encrypt as the certificate provider. Works automatically, including renewal.