Top Custom SaaS Development FirmCustom SaaS
We build custom SaaS platforms for B2B and B2C. Ship your MVP in 8-12 weeks with a fixed price.
IRPR is a top custom SaaS development firm. We build multi-tenant B2B and B2C platforms using React, Node.js, AWS, and PostgreSQL. Every project includes Stripe or Recurly billing integration from day one.
We ship your SaaS with a complete CI/CD pipeline, error monitoring (Sentry), and uptime alerts (PagerDuty). Timeline is 8-12 weeks for an MVP. Fixed pricing starts at $80,000 and goes to $250,000 depending on scope. We handle SOC 2, HIPAA, and PCI-DSS compliance out of the box.
Our clients are SaaS founders launching a new product, CTOs scaling an existing platform, product managers at enterprises building internal tools, and innovation teams at Fortune 500s. They all need a reliable partner that delivers on time and on budget.
Types of software we ship.
B2B SaaS Platform
Subscription-based tools for businesses with role-based access, billing, and analytics. Uses Stripe Billing and Auth0.
B2C Subscription App
Consumer-facing services with recurring payments, onboarding flows, and engagement features. Integrates with Recurly and SendGrid.
Multi-Tenant SaaS
Single codebase serving multiple customers with isolated data. Built on AWS ECS with PostgreSQL row-level security.
White-Label SaaS
Customizable platform that clients rebrand as their own. Includes theming, custom domains, and API access.
API-First SaaS
Headless platforms where the core is a REST/GraphQL API. Used by developers to build frontends on top. Documented with Swagger.
Marketplace SaaS
Two-sided platforms connecting buyers and sellers. Handles payments, escrow, and dispute management via Stripe Connect.
Vertical SaaS for Healthcare
HIPAA-compliant platforms for clinics, telehealth, and patient management. Uses AWS HIPAA-eligible services and Twilio for video.
Enterprise SaaS
Large-scale platforms with SSO (Okta), audit logging, and custom reporting. Deployed on Kubernetes with 99.9% uptime SLA.
We build for every business type.
Healthcare
Fintech
Ecommerce
Real Estate
Logistics
Why IRPR is a Top Custom SaaS Development Firm
We have shipped 200+ SaaS products across 50 countries with a 98% on-time record.
Every project starts with a two-week Roadmap phase where we define the scope, architecture, and fixed price. You get a detailed plan before any code is written.
Our engineers are senior-level only. We do not outsource or use junior developers. This means fewer bugs, faster delivery, and cleaner code from day one.
How We Differ from Other SaaS Development Firms
Most agencies overpromise and underdeliver. IRPR gives you a fixed price and a real timeline.
We do not bill by the hour. Every project has a fixed quote agreed in the Roadmap phase. No surprises, no scope creep.
Our engineers work in your time zone overlap hours. You get daily standups, weekly demos, and a Slack channel with the whole team.
- Hourly billing with no cap
- Junior developers on your project
- Vague requirements gathering
- No compliance expertise
- You own nothing until final payment
- Post-launch support is extra
- Fixed price from Roadmap phase
- Senior engineers only (10+ years)
- 2-week Roadmap with full spec
- Built-in SOC 2, HIPAA, PCI-DSS
- Full code ownership from day one
- 3 months of free post-launch support
Our SaaS Development Process
From idea to production in 8-12 weeks. We follow four phases.
Each phase has a clear deliverable and a go/no-go decision point. You are never locked into a project that isn't working.
We use agile sprints with 2-week cycles. Every sprint ends with a working demo you can test.
What Ships with Your SaaS Platform
You get more than just code. Every project includes these deliverables by default.
No hidden costs. Everything listed here is included in the fixed price.
You own all intellectual property. We give you the source code, credentials, and access to every service.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions
- Staging and production environments on AWS
- Sentry error tracking and performance monitoring
- PagerDuty alerting for critical failures
- Stripe or Recurly billing integration
- Auth0 or Clerk authentication with SSO
- PostgreSQL database with automated backups
- Swagger/OpenAPI documentation for APIs
- 3 months of post-launch support and bug fixes
What we ship in this practice.
Telehealth Patient Portal
Built a HIPAA-compliant platform for a chain of 12 clinics. Patients can book appointments, video chat with doctors, and pay online. Reduced no-shows by 40%. Tech stack: Next.js, PostgreSQL, Twilio Video, Stripe.
B2B Invoice Automation SaaS
Developed a multi-tenant platform that automates invoice generation, approval workflows, and payment reconciliation. One client reduced manual data entry by 8 hours per week. Tech stack: React, Node.js, MongoDB, Stripe Connect.
Subscription Box Management Platform
Created a white-label SaaS for a subscription box company. Handles inventory, recurring billing, and customer portal. Scaled to 10,000 subscribers in 6 months. Tech stack: Ruby on Rails, PostgreSQL, Recurly, SendGrid.
Real Estate MLS Integration Tool
Built a SaaS that syncs property listings across MLS, Zillow, and Realtor.com. Agents can manage leads and schedule showings from one dashboard. Increased lead response time by 60%. Tech stack: Next.js, Python, Django, PostgreSQL, Redis.
EdTech Assessment Platform
Developed a FERPA-compliant platform for a K-12 school district. Teachers create assignments, students submit work, and parents get progress reports. Handled 5,000 concurrent users during peak hours. Tech stack: React, Node.js, AWS Lambda, DynamoDB.
Logistics Route Optimization SaaS
Built a SaaS that optimizes delivery routes for a fleet of 50 trucks. Uses Google Maps API and custom algorithms. Reduced fuel costs by 15% and delivery time by 20%. Tech stack: Vue.js, Go, PostgreSQL, Redis, Docker.
Why teams hire us.
Fixed Price, Not Hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we write a single line of code.
Senior Engineers Only
Our team averages 12 years of experience. We do not use junior developers or outsource to low-cost regions. Every engineer writes production-ready code with tests.
Compliance Built In
We handle SOC 2, HIPAA, PCI-DSS, and FERPA compliance as part of the build. No separate compliance project needed. We use AWS HIPAA-eligible services and encrypt data at rest and in transit.
8-12 Week MVPs
We ship a working MVP in 8-12 weeks. Our record is 6 weeks for a B2B SaaS with billing. You can start collecting feedback and revenue fast.
Full Code Ownership
You own everything we build. Source code, documentation, design assets, and deployment scripts. We transfer all accounts and credentials at launch.
Post-Launch Support Included
Every project includes 3 months of free post-launch support. We fix bugs, deploy patches, and help with scaling. After that, we offer maintenance at a flat monthly rate.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.