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Supabase Agency

SUPABASETHE POSTGRESBACKEND

Supabase is an open-source backend platform on PostgreSQL: database, authentication, realtime, storage and automatic APIs from one source.

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Quick answer

What does a Supabase agency do?

A Supabase agency builds, migrates and operates backends on Supabase – the open-source platform on PostgreSQL. nextlevels covers the data model, auth, Row Level Security policies, realtime and edge functions, connects Next.js and native frontends, and runs the backend managed or self-hosted – without vendor lock-in.

We build withSupabase

Supabase turns PostgreSQL into a full backend platform. We use it to get apps into production quickly and without boilerplate.

  • PostgreSQL with auto-generated APIs
  • Auth, Row Level Security and policies
  • Realtime updates and storage
  • Edge Functions for custom logic
Image about: We build with Supabase

PostgreSQL as the foundation

Supabase relies on real PostgreSQL rather than a proprietary database. Existing SQL knowledge and tooling stay usable.

APIs without building your own

REST and realtime APIs emerge straight from the schema, greatly shortening the path from data model to a working app.

Illustration zu PostgreSQL as the foundation und APIs without building your own

Auth and security built in

Authentication and Row Level Security are integrated. Access rights are enforced at the database level instead of scattered through app code.

Open source and portable

As an open-source stack, Supabase runs managed or self-hosted – a safeguard against vendor lock-in.

Illustration zu Auth and security built in und Open source and portable

Selected references

Reference project ENRA: SAFE RIDE – DIGITAL INSURANCE

ENRA

SAFE RIDE – DIGITAL INSURANCE

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  • Webdesign
  • PHP

Services &delivery

We support Supabase projects from data model to operations.

  • Data model, policies and API design
  • Auth and permission concepts
  • Integration with Next.js and native apps
  • Edge Functions, hosting and monitoring
Image about: Services & delivery

Fast product MVPs

With database, auth and APIs from day one, prototypes and MVPs go live without heavy backend setup.

Realtime applications

Thanks to realtime subscriptions, Supabase suits collaborative tools, dashboards and live updates.

Illustration zu Fast product MVPs und Realtime applications

Frequently asked questions about Supabase

When is Supabase the right fit for our project?
Supabase makes sense when you need a complete backend fast, without building database, auth, storage and APIs separately. Because there is a real PostgreSQL underneath, it is especially strong when your data is relational and you want long-term SQL power and open standards instead of vendor lock-in. For apps, MVPs and web products on Next.js or native frontends, it brings speed from day one.
How do you actually approach building a Supabase backend?
We start with the data model in PostgreSQL and derive the auto-generated APIs from it, instead of hand-writing CRUD code. In parallel we define the auth flows and Row Level Security policies so access rules are enforced right inside the database. Custom logic goes into Edge Functions, and files run through Supabase Storage.
How do you integrate Supabase into our existing frontend?
We connect Supabase through its official client libraries, typically to Next.js or native apps. Auth, data access and realtime updates run directly against the generated APIs, secured by Row Level Security. Where server-side logic or third-party systems are needed, we add Edge Functions or a dedicated API layer in between.
We're coming from Firebase. Is switching to Supabase worth it?
Supabase is an open alternative to Firebase, but it builds on PostgreSQL instead of a NoSQL database. The switch pays off mainly when your data is relational, you need complex queries or you want to avoid vendor lock-in, since Supabase is open source and can also be self-hosted. For a migration we move the data model, auth users and permission logic step by step, and we are upfront about the differences between the two models.
What drives the cost of Supabase and what should we watch in operations?
Cost is driven mainly by database size, storage, realtime connections and Edge Function calls, not by a fixed licence fee. In operations the most important task is keeping Row Level Security policies clean, because that is where security and data access are decided. We set up monitoring and backups, and if you need full control over your data and infrastructure, we can self-host Supabase as well.
What does building a Supabase backend cost?
We work project-based and estimate effort by scope: an MVP with a data model, auth and a few APIs is far leaner than a mature application with complex policies, Edge Functions and third-party integrations. Your biggest lever is the data model and the permissions – set up cleanly, they save expensive rework later. After a short conversation we give you a reliable range before we start.
Can Supabase be hosted GDPR-compliant in Germany or the EU?
Yes. Supabase Cloud offers EU regions, and because the stack is open source it can also run fully self-hosted in German or European data centres. That gives you full control over storage location and data processing – a frequent argument over purely US-bound platforms like Firebase. We set up hosting, backups and the access model to match your compliance requirements.
Is Supabase suitable for larger applications, not just MVPs?
Yes. Underneath Supabase sits full PostgreSQL, which with indexes, read replicas, connection pooling and a clean data model also carries production applications with real traffic. What matters is less the early MVP speed than the architecture behind it: we focus on scalable queries, well-designed Row Level Security and monitoring, so the application grows with you instead of hitting walls.

Your edge with Supabase

Supabase removes backend boilerplate – but the data model, security and operations stay engineering work. That is exactly where we come in, instead of just wiring together click flows.

  1. Row Level Security policies that actually hold

  2. A clean PostgreSQL data model instead of sprawl

  3. Managed or self-hosted – without vendor lock-in

  4. Integration with Next.js, native apps and third-party systems

Supabase backend, self-hosting or Firebase?

As a backend, the options are managed Supabase, self-hosted Supabase and Firebase. The right choice depends on data sovereignty, compliance and growth goals – here's a rough guide to help you decide.

CriterionSupabase (Managed)Supabase self-hostedFirebase
DatabasePostgreSQL, full SQL accessPostgreSQL, full SQL accessFirestore (NoSQL), limited queries
Auth & permissionsBuilt-in, Row Level SecurityBuilt-in, Row Level SecurityFirebase Auth, Security Rules
Realtime & functionsRealtime, Edge Functions, Storage out of the boxFull feature set, self-operatedRealtime DB, Cloud Functions
Hosting & GDPREU region selectable, managed operationOwn infrastructure, full data sovereigntyGoogle Cloud (US company), check GDPR
Vendor lock-inLow, open source, exportable any timeNone, full code & data accessHigh, proprietary ecosystem
Pricing modelUsage-based, predictable from free tierPure infrastructure & operating costsUsage-based, can jump at scale
Ideal forFast start with room to scaleStrict compliance & full controlMobile-first MVPs in the Google stack

Typical market positioning as of 2026 – no binding prices. Which option fits, we clarify after a look at your use case.

Ready for your Supabase project?

Let's talk about your requirements – we'll get back to you within 24 hours with concrete next steps.

Profile picture of Paul Kalisch, Executive Partner
Paul Kalisch
Executive Partner
info@next-levels.de +49 (0) 2161 539 71 60

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