SaaS and platforms

Your SaaS ready for many customers, not just the first one

We build SaaS platforms with per-customer data isolation, plans, recurring billing and white label. The architecture is ready for your hundredth customer, so you don't rewrite everything when the product takes off.

  • Multi-tenant with data isolated per customer
  • Plans, subscriptions and recurring billing
  • White label and custom domain per customer
  • Public API and integrations

What works for one customer breaks at the tenth

Many products start as a system for a single customer and stall when the next ones arrive: mixed data, settings hard-coded, manual billing. A well-designed SaaS separates each customer, automates billing and lets you grow without multiplying the work.

What we deliver

The foundation of a product that scales

Multi-tenant

Each customer's data isolated, with their own settings and permissions.

Plans and billing

Subscriptions, plan limits, trial periods and payment provider integration.

White label

The customer's brand, colors and domain, for resellers and partners.

API and integrations

Documented API for customers and partners, webhooks and ERP integrations.

Performance and observability

Metrics, logs and alerts so you know what is happening before customers complain.

Security and data privacy

Access control, auditing, backups and personal data handled under Brazil's LGPD.

Who it's for

Companies that want to turn software into a product

Startups, companies that want to sell their internal system as a service and operations with many customers, branches or franchises.

  • Startups launching their first product
  • An internal system about to become a product
  • Chains, franchises and multi-unit operations
  • Platforms for partners and resellers
  • Marketplaces and B2B portals
  • Migrating a single-customer system to SaaS
How we work

How we build

From the minimum product to operating with many customers.

  1. 1

    Discovery

    Business model, plans, user profiles and integrations.

  2. 2

    Multi-tenant MVP

    The product core, already with data isolation and billing.

  3. 3

    Scale

    White label, API, reports and automation as customers arrive.

  4. 4

    Operations

    Monitoring, support and evolution in short cycles.

Have an idea and a pilot customer?

Full Ventures builds the SaaS of selected founders in exchange for equity in the company.

Discover Full Ventures

Already started with AI?

If the product was born in Lovable, Bolt or Cursor, we take it over and deliver what it needs to scale.

See AI-built app rescue

Frequently asked questions: SaaS and platforms

What companies usually ask before getting started.

What is a multi-tenant SaaS?

It is a platform where many customers use the same system, each with isolated data, their own settings and their own users. This lets you grow the number of customers without maintaining a copy of the system for each one.

Do you integrate recurring billing?

Yes. We implement plans, subscriptions, plan limits and payment provider integration, plus handling of overdue accounts inside the system.

Can the system carry the customer's brand?

Yes. With white label each customer or partner can use their own brand, colors and domain.

My current system serves a single customer. Can it become a SaaS?

In most cases, yes. We assess the system during discovery and plan the move to multi-tenant without disrupting current users.

Tell us which product you want to bring to market.

Tell us who the customer is, how you plan to charge and what already exists.