SaaS Development Services

Building a SaaS product is not the same as building any other software. Multi-tenancy, subscription billing, role-based access, data isolation, and the architecture decisions that constrain you at 10,000 users were made at 10, these are SaaS-specific problems that general software development companies get wrong.
We build SaaS products with the constraints of the model built in from day one: multi-tenant architecture, subscription infrastructure, usage-based billing, and the compliance posture your enterprise buyers will expect at Series A.

See our work
  • SaaS products from lean MVP to multi-tenant enterprise platform in 10-16 weeks

  • Multi-tenant architecture with row-level, schema-per-tenant, or database-per-tenant isolation

  • Stripe billing, subscription management, usage-based pricing, and feature flags built in

  • Full source code ownership, no lock-in, no dependency on us to keep your product running

Recent outcomes

B2B SaaS · Food delivery platform

3x revenue

Built multi-tenant food order management platform with Stripe billing; acquired by Runchise after launch.

Marketing SaaS · Referral platform

250% sales lift

Shipped GrowViral referral SaaS with usage-based billing and analytics dashboard in 14 weeks.

B2B SaaS · Decision-making platform

14 weeks to launch

Launched PSi voice collaboration SaaS with 300+ concurrent users and real-time multi-tenant data isolation.

4.9 / 5 on ClutchSee our work

The problem

Sound familiar?

  • Architecture decisions from your MVP now blocking you from selling to enterprise customers?

  • Subscription billing, tenant isolation, or usage metering bolted on as an afterthought?

The short answer

RaftLabs builds SaaS products for startups across the US, UK, Europe, Canada, GCC, South Africa, and Southeast Asia: multi-tenant architecture, Stripe billing, and role-based access designed in from day one. 100+ products shipped since 2015. Fixed cost, 10-16 week delivery, full source code ownership.

Key Takeaways

  • RaftLabs has shipped 100+ software products since 2015, including B2B SaaS platforms for US and UK startups.
  • A focused SaaS MVP with multi-tenancy and subscription billing is delivered in 10-16 weeks at a fixed cost.
  • Pricing starts at $25,000-$60,000 for a core-workflow SaaS; complete platforms with multiple modules run $60,000-$150,000.
  • Multi-tenancy model is selected based on buyer type: row-level security for SMB SaaS, schema-per-tenant for B2B, database-per-tenant for regulated industries requiring HIPAA or SOC 2 compliance.
  • Stripe Billing is integrated as standard, covering recurring billing, usage-based metering, plan upgrades, and feature flags.
  • Full source code ownership is transferred at project end with no vendor lock-in and no proprietary frameworks.

Trusted by

Vodafone
Nike
Microsoft
Cisco
T-Mobile
Aldi
Heineken
GE

Software delivery, by the numbers

software products shipped
100+
average time to first production release
12 weeks
rated by clients on Clutch
4.9/5
years delivering software for established businesses
9+

Build the architecture you'll need at Series A, from day one

RaftLabs is an AI-first tech studio that builds SaaS products for startups and growth-stage companies. Since 2015, we've shipped 100+ products including B2B SaaS platforms, marketplace apps, and AI-native tools for clients including Aldi, Nike, and Vodafone. We deliver SaaS products in 10-16 weeks at a fixed cost with full source code ownership and no vendor lock-in. RaftLabs is a tech studio, not an agency. One team owns your product from architecture through launch, no handoffs, no relay race between four vendors.

According to Gartner, worldwide SaaS revenue grew 16.7% to $218.5 billion in 2024, making it the fastest-growing segment of enterprise software spending. That growth means more SaaS buyers with higher expectations for data isolation, compliance posture, and billing flexibility — all architecture decisions that have to be right from the first sprint.

The architecture decisions you make when building your MVP constrain you at every subsequent stage. Shared-schema multi-tenancy that works at 50 customers breaks at 5,000. Subscription billing bolted on after launch is harder to change than if it was designed in. Role-based access retrofitted after enterprise deals require it is a rebuild.

SaaS development done right means making the right architectural decisions at the start, not paying for them at Series B.

Key Insight

Two SaaS platforms we've built since 2015 were acquired after launch: Gula (acquired by Runchise) and a food logistics SaaS (acquired by Gojek). In both cases, the multi-tenant architecture we shipped held up under the acquiring company's scale without a rebuild.

Gula is one example. We built the multi-platform food order management SaaS, including multi-tenant data isolation and Stripe billing, in 16 weeks. It was acquired by Runchise shortly after launch. Read the full case study.

"RaftLabs elevated my ideas and brought them to life when everything seemed impossible." - Grady Lakshmono, CoFounder, Moka (acquired by Gojek) & Gula (acquired by Runchise)

Capabilities

What we build

  • 01
    Multi-tenant SaaS platforms

    SaaS products where one codebase serves many customers with complete data isolation. The tenancy model matches your buyer, and cross-tenant isolation is enforced by an automated security test suite, not a one-time design decision.

    Built with
    PostgreSQL · Temporal.io · Step Functions
  • 02
    Subscription and billing infrastructure

    Recurring subscriptions, trials, proration, usage-based metering, and invoicing, with webhook events processed idempotently. A dunning sequence runs from the first payment-failure email through account suspension at day 14, and any feature can be plan-gated without a code deployment.

    Built with
    Stripe Billing · LaunchDarkly · Unleash · Lago
  • 03
    B2B SaaS features

    Team and workspace management, audit logs, API key management, and webhook delivery for product events. The access controls enterprise buyers check before procurement approval, built in from the start, not added when the first enterprise deal requires them.

    Built with
    SSO · SAML · OAuth · RBAC
  • 04
    SaaS API and integration layer

    Public API for third-party integrations, webhook delivery for product events, and native integrations with the tools your customers already use. The integration surface that makes your product a platform, not a silo.

    Built with
    Zapier · Make · Slack · Salesforce · HubSpot
  • 05
    Admin and operations tooling

    Internal admin dashboard for managing tenants, monitoring usage, and handling billing overrides without database access. Usage analytics and churn signals surface to your customer success team, so they can run the product without relying on engineers for every support task.

  • 06
    SaaS infrastructure and DevOps

    Production infrastructure with staging environments, database backups, monitoring and alerting, and auto-scaling. It supports zero-downtime deployments and handles traffic spikes, deployed to your cloud account and managed by you after handoff.

    Built with
    AWS · Vercel · GCP · CI/CD

100+ products shipped since 2015. We know what breaks SaaS products at scale.

Fixed cost. 10-16 week delivery. Full source code ownership. No dependency on us to run your product.

Process

How we build SaaS products

  • 01
    Architecture first

    Before writing code, we design the data model, tenancy model, and API structure. The architecture review catches decisions that are cheap to change now and expensive later, then documents them for your sign-off before development starts.

  • 02
    Fixed cost on defined scope

    We scope the product before pricing it: a discovery session, a wireframe to validate scope, and a defined feature list set the fixed cost. If scope exceeds your budget, we cut to the essential core and build the rest in a later phase, with no hourly billing.

  • 03
    Working software at every milestone

    We build in two-week sprints with a deployed build at the end of each, so you see working software every two weeks, not a finished product after 16. Problems surface at sprint review when they cost hours, not at launch when they cost weeks.

  • 04
    Built for your engineering team to take over

    We write code as if we're handing it to a different engineering team, because we usually are: standard frameworks, documented APIs, a clean codebase, and infrastructure-as-code. Your future engineers can extend it without reverse-engineering our decisions.

SaaS architecture decisions made right the first time

Multi-tenancy, subscription billing, and enterprise features designed in from day one. Fixed cost.

How we work

From scope to shipped

Every project follows the same four phases. Scope is locked and price is fixed before development starts.

  1. Week 1
    01

    Discovery and scope

    We map the problem, the user, and the workflow. You leave week 1 with a written scope document, a defined feature list, and a fixed-price quote. No development starts without your sign-off.

  2. Weeks 2-3
    02

    Architecture and design

    We design the data model, tenancy model, and API structure before writing code. Wireframes validate the UX. Architecture decisions made here cost a fraction of changes made in week 8.

  3. Weeks 4-12
    03

    Build, integrate, and QA

    Working software deployed to staging at the end of sprint one. Bi-weekly demos with milestone sign-off before the next payment. QA runs in parallel with every sprint, not as a phase at the end.

  4. Weeks 12+
    04

    Launch and handoff

    Production deployment with monitoring activated on launch day. 8 weeks of post-launch support included. Full source code, infrastructure definitions, and documentation transferred to you at project end.

Why us

Why SaaS founders choose RaftLabs

  • 01
    Senior engineers build what they scope

    The engineers who assess your product also build it. No bait-and-switch, no offshore handoff after the contract is signed. The team you meet in week 1 ships in week 12.

  • 02
    Fixed price before development starts

    We scope the product, calculate the cost, and lock it in writing before any development starts. A scope change is a change request: priced, agreed, or dropped. It never absorbs into the project and appears on the final invoice.

  • 03
    9 years and 100+ products shipped

    Clients include Vodafone, T-Mobile, Aldi, Nike, Cisco, and Lockheed Martin. Track record across B2B SaaS, marketplace, AI-native platforms, and fintech. We have shipped multi-tenant products for US, UK, and Australian buyers.

  • 04
    Compliance built in from the start

    GDPR, HIPAA, SOC 2 - compliance requirements are scoped in week 1, not retrofitted before launch. We have shipped HIPAA-compliant systems for US healthcare clients and GDPR-compliant products for European markets.

Stay on topic

More on SaaS development

Frequently asked questions

SaaS development is the process of building software delivered over the internet on a subscription basis, where one codebase serves multiple customers (tenants). What makes it different from building a single-customer application: (1) Multi-tenancy, the architecture must isolate each customer's data while running on shared infrastructure. (2) Subscription billing, recurring billing, trial management, plan changes, and usage-based pricing are core product features, not afterthoughts. (3) Role-based access, every SaaS product needs user, team, admin, and billing roles with appropriate permissions. (4) Observability, you're responsible for uptime and performance for all customers simultaneously, so monitoring and alerting are non-negotiable. (5) Scale, the architecture needs to handle growth without rebuilding at each new order of magnitude.

There are three models, each with different cost and isolation trade-offs. Row-level security (shared schema): all tenant data in shared tables with strict query-level isolation. Lowest infrastructure cost, easiest to scale operationally, right for B2C SaaS and SMB-focused products. Schema-per-tenant: each tenant gets their own schema within a shared database. Strong isolation, good compliance posture, manageable infrastructure cost, the right choice for most B2B SaaS products targeting growth-stage companies. Database-per-tenant: each customer gets a completely separate database. Maximum isolation, required for regulated industry buyers in healthcare and financial services, and for customers with strict data residency requirements. Higher infrastructure cost that scales with customer count. We recommend the model based on your target buyer and their procurement requirements, not a default preference.

We integrate Stripe Billing as the standard subscription layer, handling recurring billing, trial management, plan upgrades and downgrades, proration, and invoice generation. For usage-based billing (metering by API calls, seats, events, or other units), we implement Stripe Meters or build a custom metering system that reports usage to Stripe. Feature flags are implemented to control feature availability by plan without code deployments. If your pricing model is likely to evolve (and it will), we design the billing integration to support plan structure changes without breaking existing subscriptions.

A focused SaaS product, one core workflow, multi-tenancy, subscription billing, and a web interface, typically runs $25,000--$60,000. A more complete SaaS platform with multiple modules, mobile app, API for third-party integrations, and admin tooling runs $60,000--$150,000. SaaS products with complex data models, real-time features, or compliance requirements (HIPAA, SOC 2) run higher. Pricing is fixed cost based on scoped features, you know the number before development starts, not after.

A focused SaaS MVP with one core workflow, multi-tenancy, and subscription billing typically launches in 10-16 weeks. A more complete platform with multiple modules and enterprise integrations takes 16-24 weeks. We deliver working software every two weeks and hold milestone reviews before each payment, so you see progress throughout rather than only at launch. Timeline depends on scope complexity, the number of third-party integrations required, and how clearly the product requirements are defined at kickoff.

You own everything. All source code, infrastructure definitions, CI/CD configurations, documentation, and data are transferred to you at project end. We do not retain access to your systems after delivery, and we do not use proprietary frameworks that create lock-in. Your team or any future developer can take over the codebase without depending on us.

Work with us

Tell us what you need. We'll tell you what it would take.

We scope SaaS Development Services in 30 minutes. You walk away with a clear cost, timeline, and approach. No commitment required.

  • Scope and cost agreed before work starts. No surprises. No obligation.
  • Working prototype within 3 weeks of kickoff.
  • Pay by milestone. You see progress before each invoice.
  • 60-day post-launch warranty. Bug fixes, UI tweaks, and deployment support. No retainer.
  • All conversations are NDA-protected.