Senior B2B SaaS Website Development FirmDevelopment Firm
We build complex B2B SaaS websites and web apps. Senior engineers deliver in 8-12 weeks with fixed pricing.
IRPR builds senior-level B2B SaaS websites and web applications using React, Next.js, Node.js, and Python. These are not brochure sites - they are full-featured platforms with authentication, dashboards, API integrations, and billing.
We ship an MVP in 8-12 weeks with a fixed price starting at $80K and ranging up to $250K. Compliance with SOC 2, PCI-DSS, and HIPAA is baked into our architecture for B2B clients.
Our clients are mid-market CTOs needing to launch a new SaaS product, founders scaling beyond MVP, enterprise IT teams replacing legacy portals, and product managers building customer-facing B2B apps.
Types of software we ship.
B2B SaaS portal
Multi-tenant web app with role-based access, usage tracking, and subscription billing. Built with Next.js, Stripe, and Auth0.
Customer dashboard
White-labeled analytics and reporting interface for B2B clients. Connects to your API and displays real-time KPIs.
Enterprise pricing page
Complex tiered pricing with quote requests, usage-based billing calculator, and Salesforce integration.
Partner portal
Self-service portal for resellers and affiliates. Includes commission tracking, documentation, and ticket submission.
SaaS knowledge base
Searchable help center with versioned articles, inline feedback, and Algolia search. Integrates with Intercom.
Integration marketplace
Directory of third-party integrations with OAuth flows and automated setup. Ships with a public API.
SaaS marketing site
High-conversion landing pages with A/B testing, analytics, and CMS. Optimized for SEO and lead capture.
B2B checkout flow
Multi-step checkout with approval workflows, purchase orders, and Net 30 terms. Payment via Stripe or Braintree.
We build for every business type.
Professional Services
Healthcare
Fintech
Ecommerce
Enterprise
Why a senior B2B SaaS website development firm matters
Hiring junior developers costs you time and money. Senior engineers ship faster with fewer bugs.
IRPR only hires senior engineers with 10+ years of experience. Our team has shipped over 200 products across 50 countries. We use battle-tested stacks like Next.js, Node.js, and PostgreSQL so you don't have to rebuild after launch.
Every B2B SaaS site we build includes SOC 2 audit-ready logging, automated CI/CD pipelines, and 99.9% uptime architecture. We deliver an MVP in 8-12 weeks - not 6 months.
Generic web agency vs. senior B2B SaaS firm
Most agencies build marketing sites. We build revenue-generating SaaS platforms.
A generic agency will deliver a static brochure site on WordPress. Your sales team will struggle to log in, manage users, or integrate with Stripe.
IRPR builds multi-tenant SaaS with billing, dashboards, and APIs. You own the code, and we set up monitoring from day one.
- Builds brochure sites
- Uses WordPress or Wix
- No multi-tenant architecture
- No billing integration
- No API design
- No security audit
- Builds B2B SaaS platforms
- Uses React/Next.js + Node/Python
- Multi-tenant with RBAC
- Stripe or Braintree billing
- REST and GraphQL APIs
- SOC 2 and HIPAA ready
How we build your B2B SaaS website
A repeatable 4-phase process that de-risks your investment.
We start with a discovery week where we map your user flows, data model, and integrations.
Then we produce a detailed roadmap with wireframes, architecture diagram, and fixed price.
What ships with every B2B SaaS website
These aren't optional - they're included in your fixed price.
Source code in your private GitHub repo. CI/CD pipeline on GitHub Actions. Automated tests with Jest and Cypress.
Sentry error tracking. Datadog performance monitoring. User authentication via Auth0 or Clerk. Stripe billing integration.
- Full source code in your GitHub repo
- CI/CD pipeline with GitHub Actions
- Automated tests (Jest, Cypress)
- Sentry error tracking
- Datadog or New Relic monitoring
- Auth0 or Clerk user authentication
- Stripe or Braintree billing integration
- PostgreSQL or DynamoDB data store
- REST and GraphQL API documentation
- 99.9% uptime architecture on AWS
What we ship in this practice.
B2B subscription platform for a fintech startup
Built a multi-tenant platform with usage-based billing and investor dashboards using Next.js, Stripe, and PostgreSQL. Reduced manual invoicing by 12 hours per week.
Partner portal for a SaaS company
Developed a white-labeled portal for 200+ resellers with commission tracking, lead management, and automated payouts using React, Node.js, and Salesforce API.
Enterprise pricing and quoting tool
Replaced a manual spreadsheet process with a dynamic quoting engine that generates PDFs and integrates with Salesforce. Cut quote turnaround from 3 days to 2 hours.
Healthcare provider dashboard
Built a HIPAA-compliant dashboard for a telehealth startup. Handles 50,000+ patient records with real-time appointment scheduling via Twilio and AWS HealthLake.
B2B ecommerce wholesale portal
Created a B2B storefront with custom pricing per customer, purchase order approval, and QuickBooks integration. Increased average order value by 30%.
Real estate investment platform
Built a platform for accredited investors to view properties, run DCF models, and invest online using Next.js, Python, and Plaid for ACH transfers.
Why teams hire us.
Senior engineers only
Our team averages 12 years of experience. We don't outsource to juniors. Every engineer has shipped at least 10 production SaaS products.
Fixed price, no hourly billing
You get a fixed price after the Roadmap phase. No surprise invoices. We've delivered 200+ projects on budget.
8-12 week MVPs
We ship a working SaaS website in 8-12 weeks. Our process is optimized for speed - we've launched products in 6 weeks for simple use cases.
Full code ownership
You own all source code, infrastructure, and IP. No locked-in contracts. We set up your own AWS or Azure account from day one.
SOC 2 and HIPAA ready
Our architecture includes audit logs, encryption at rest, and role-based access. We've passed SOC 2 Type II audits for clients.
Post-launch support included
We include a 2-week warranty after launch. We also offer ongoing maintenance at $5K/month for 10 hours of senior engineer time.
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.
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