You can build a SaaS product without using AWS, Azure, or GCP by choosing European alternatives for each layer of your stack. EU software providers have reached a point where every core layer has at least one credible option.
For hosting and compute, Hetzner is a cost-effective choice with Linux-friendly servers, while Scaleway offers managed services similar to AWS. For billing and payments, Mollie provides a clean API and supports European payment methods out of the box. Bunny.net is a reliable CDN that's more affordable than Cloudflare. Plausible and Simple Analytics are EU-based analytics options that prioritize privacy.
You don't need Google Analytics or SendGrid for transactional email; Ahasend, Lettermint, and MailerLite offer free tiers with generous limits. Building a SaaS on an entirely European infrastructure is now a practical choice, not just an ideological one. It's no longer necessary to make compromises, as every core layer has a production-ready EU option that's often more affordable than its US-based counterparts.