Top B2B SaaS Development FirmDevelopment Firm
Ship your multi-tenant B2B SaaS platform in 12 weeks. Fixed price, senior engineers, full compliance.
IRPR is the top b2b saas development firm for founders and enterprises who need production-grade platforms. We build with React, Node.js, Python, and AWS, and ship on time with a fixed price.
Every project delivers a full-stack SaaS in 8-12 weeks with pricing from $80K to $250K. We handle HIPAA, PCI-DSS, and SOC2 compliance out of the box, so you can sell to regulated industries from day one.
Our clients are SaaS founders who need a v1 to raise seed funding, enterprise product managers replacing legacy systems, CTOs at Series A startups scaling their tech, and venture studios spinning out new B2B ventures.
Types of software we ship.
Customer Portal
A branded portal where your clients log in to manage their account, see invoices, and submit support tickets. Integrates with Stripe and Salesforce.
Billing & Usage Platform
Track API calls, seats, or storage with real-time metering. Generate invoices and enforce limits via Stripe Billing.
Analytics Dashboard
Custom dashboards with charts, CSV exports, and role-based views. Built with D3.js and Cube.js for live querying.
Multi-tenant Admin Panel
One backend serving hundreds of customers with isolated data. Uses Postgres row-level security and dedicated subdomains.
Subscription Management
Handle trials, upgrades, downgrades, and cancellations with Stripe webhooks. Sync plans across users and teams.
API Gateway
Rate-limited, authenticated API layer for your product. Includes Swagger docs, usage logs, and developer keys.
Internal Tool
Admin dashboards, workflow automation, and data entry apps for your ops team. Connected to your existing databases via Retool or custom React.
White-label SaaS
A platform you can rebrand and resell to your clients. Includes tenant onboarding, custom domains, and feature flags per tenant.
We build for every business type.
Healthcare
Fintech
Ecommerce
Real Estate
Logistics
Why IRPR is the Top B2B SaaS Development Firm
We ship production-grade B2B SaaS platforms faster and with fewer defects than generic dev shops.
IRPR has delivered over 200 products across 50+ countries, with 98% of projects finishing on time. Our developers average 10+ years of experience and have built SaaS platforms handling millions of API calls per day.
We use a fixed-price framework called Idea-Roadmap-Product-Release. In week 2 you get a detailed roadmap with wireframes and a fixed quote. No hourly billing, no scope creep. The average project costs between $80K and $250K.
B2B SaaS Development – The IRPR Difference
Most agencies bill hourly and change scope. We fix the price and the timeline up front.
A typical development relationship starts with a vague estimate and ends with change orders. IRPR inverts this: we spend Week 2 building a roadmap with wireframes and a binding fixed price.
Our clients get full code ownership, a CI/CD pipeline, and a 30-day warranty after launch. We also include Sentry error tracking and Datadog monitoring so you know exactly how your platform performs.
- Hourly billing with no cap
- Scope creep in every sprint
- Junior developers on your project
- No compliance guarantees
- Source code may be retained
- No post-launch monitoring
- Fixed price from week 2
- Scope locked in roadmap
- Senior engineers only (10+ yr avg)
- HIPAA, PCI, SOC2 built in
- Full code ownership from day one
- Sentry + Datadog monitoring included
How We Build Your B2B SaaS Platform
Four phases from idea to production – each with a clear milestone and decision point.
Phase 1 (Idea) is a 3-day workshop where we define user personas, core workflows, and compliance needs. Phase 2 (Roadmap) delivers a fixed-price plan with wireframes by end of week 2.
Phase 3 (Product) is a 8-12 week build sprint with weekly demos. Phase 4 (Release) includes staging, production deployment, and a 30-day warranty with monitoring.
What Ships With Every B2B SaaS Build
Every project includes the following deliverables – no add-ons, no hidden fees.
When you hire IRPR as your top b2b saas development firm, you get a fully production-ready platform. We don't just hand over code; we hand over a running system with monitoring and documentation.
All source code is placed in your GitHub repository from the first commit. You own everything – no IP restrictions, no license fees.
- Source code in your private GitHub repo
- CI/CD pipeline via GitHub Actions
- Staging environment on AWS (or your cloud)
- Production deployment with auto-scaling
- Sentry error tracking configured
- Datadog monitoring dashboard
- API documentation (Swagger/OpenAPI)
- Admin panel for managing users and tenants
- Stripe integration for subscriptions
- 30-day warranty with developer support
What we ship in this practice.
Customer Portal for a B2B Telecom Company
Built a multi-tenant portal where enterprise clients manage their phone lines, invoices, and support tickets. Reduced support emails by 40% using React, Node.js, and Stripe for payments. Industry: Telecom (Media).
HIPAA-Compliant Patient Scheduling Platform
Designed a white-label scheduling system for a healthcare SaaS startup. Handles 10,000+ appointments per month with FHIR integration. Tech stack: Next.js, PostgreSQL, Twilio. Industry: Healthcare.
Subscription Billing Engine for a Fintech Platform
Replaced a manual invoicing system with an automated billing engine that handles usage metering, proration, and dunning. Cut billing errors by 90%. Stack: Python, Django, Stripe Billing. Industry: Fintech.
Real Estate MLS Syndication Tool
Built a SaaS that syndicates property listings to Zillow, Realtor.com, and MLS boards. Syncs 5,000+ listings daily. Used Ruby on Rails, Redis, and AWS Lambda. Industry: Real Estate.
Ecommerce Inventory Management Dashboard
Developed a real-time dashboard for a dropshipping company to track stock across 3 warehouses and 20 suppliers. Reduced stockouts by 60%. Stack: Vue.js, Node.js, MySQL. Industry: Ecommerce.
API Gateway for a Logistics SaaS
Created rate-limited API gateway that handles 2M requests/day for a delivery tracking platform. Includes usage analytics and developer portal. Tech: Express, Redis, Docker. Industry: Logistics.
Why teams hire us.
Fixed Price From Week 2
Every project gets a binding fixed quote after the Roadmap phase. No hourly billing, no surprise invoices. Our average project is $80K-$250K with a 12-week delivery.
Senior Engineers Only – 10+ Years Average
Our developers average 10+ years of experience and have built SaaS platforms at scale. No juniors, no offshore teams. You work directly with the engineers.
Compliance Built In – HIPAA, PCI, SOC2
We design for compliance from day one. Every SaaS includes audit logging, encryption, and data isolation required for health, finance, and enterprise sales.
Full Code Ownership
You own 100% of the code from the first commit. No licensing, no IP restrictions, no royalties. IRPR does not retain any rights.
30-Day Warranty With Monitoring
After launch we provide 30 days of on-call support plus Sentry and Datadog monitoring. We fix any bugs found during that period at no cost.
99.9% Uptime SLA
We deploy on AWS with auto-scaling and redundancy. Every platform we build supports a 99.9% uptime guarantee, verified by Datadog.
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.