SaaS development built for your product and your industry.
SaaS development services for B2B, marketplace, and vertical products. From MVP and SaaS app development to rebuilding, scaling, and optimizing the platform you already run.
1,000+
Happy partners
20+
Countries serviced
220+
Team members
SaaS development across the entire product lifecycle.
From the first MVP to a mature platform, we cover the whole SaaS product for B2B, marketplace, and vertical teams — not just the codebase.
SaaS MVPs
A lean first release that validates the idea, onboards real users, and gives you a working product worth pitching and building on.
Custom SaaS app development
B2B, marketplace, and vertical products built around your users and business model, not squeezed into someone else's template.
Multi-tenant & scaling
Account structures, permissions, and architecture that hold up as you onboard your next thousand customers without things breaking.
Rebuilds & replatforming
Move off a stack you've outgrown without breaking the features and workflows your customers already depend on every day.
Performance & optimization
Slow load times, rising infrastructure bills, and reliability issues on an existing platform, found and fixed as you grow.
AI features & automation
Add the AI features, agents, and automations that are now possible, wired into your product and workflows instead of bolted on.
SaaS development built for your industry.
We build for B2B, marketplace, and vertical products, and we know the compliance, integrations, and edge cases each one runs into. The senior team stays the same. The playbook adapts to your space.
B2B SaaS
- Multi-tenant architecture and role-based permissions
- Subscription billing and usage metering
- API-first integrations with the tools your buyers already use
Marketplaces
- Two-sided marketplace logic and matching
- Split payments and payout routing
- Trust, ratings, and dispute-resolution workflows
Vertical SaaS
- Workflows shaped around one industry, not a generic tool
- Deep, industry-specific integrations
- Compliance and data handling built for your space
FinTech
- Payment processing and ledger systems
- Security built for financial platforms
- Performance that holds up at transaction scale
PropTech
- Investment calculators and underwriting tools
- Listing aggregation and data pipelines
- MLS and IDX integrations
HealthTech
- EMR and EHR integration
- Telehealth platform builds
- Patient data security and HIPAA compliance
What clients say after the build ships
A few more voices from the same founders and product teams featured in Proof.
The four questions we answer before a single line of code ships.
Development is the last of four moves, not the first.
Three steps between here and a clear plan.
Twenty minutes, scheduled around you — no discovery-call theater, no generic deck.
A little about your business
Three quick fields — that’s all we need before the call.
- Business email
- Website URL
- What you’re hoping to solve
Choose a slot that works
Grab any open 20-minute window on our calendar — nothing to coordinate by email.
- Live availability, no back-and-forth
- Instant confirmation + calendar invite
We walk through how, what & why
A RapidDev strategist looks at your business ahead of time and brings a point of view.
- What’s worth building right now
- Why it moves the business
- How an engagement would actually run
Outcomes we’ve helped drive.
A construction company was drowning in paper invoices. We built them an AI system that reads, checks, and approves invoices on its own. Processing time dropped from 18 days to under 3.
A 50 year old rep agency was still running commissions through spreadsheets. We built RepCentric, a CRM that does the math instantly instead of taking days.
WorldVia had a growing network of travel agents and no real technology behind it. We built the whole platform from scratch. Logins, payments, websites, everything in one place now.
Why SaaS companies choose RapidDev.
More than a dev shop. You get the product, engineering, and AI experience to build for your industry and take your platform from idea to launch, then keep it moving after.
Built by a team that knows SaaS
We've shipped products with subscriptions, multi-tenant setups, dashboards, permissions, and the integrations real customers expect.
1,000+ projects shipped
From MVPs to established platforms, we've helped companies build, launch, and improve digital products across industries.
One team for the whole product
Product strategy, design, development, QA, and DevOps work together from the first release through ongoing work.
Built to scale
We build the first version with what's next in mind: more customers, more features, more integrations, and more data.
Your platform, your code, your IP
The code, design, and product IP belong to you. Your SaaS business runs on technology you control, not something licensed back.
Senior engineers, AI-assisted speed
Get an experienced product and engineering team without months of recruiting, moving faster with AI-assisted development.
Common questions about working with us.
The things most founders and product teams ask before starting a project.
How much does custom SaaS development cost?
It depends on the scope of the platform, how complex it is, the integrations it needs, and the architecture behind it. A lean MVP and a multi-tenant enterprise platform aren't priced the same way, and building something new is different from working inside an existing codebase. The clearest way to get a real number is to walk us through the project on a strategy call, and we'll put together an estimate based on what you're actually building.
How long does it take to build a SaaS product?
Timelines move with the same factors that drive cost: scope, complexity, integrations, and whether we're building from scratch or extending what you have. A focused first release ships faster than a full multi-tenant build with billing, permissions, and integrations baked in. You'll get a realistic timeline once we understand the project. It's part of the scoping conversation, not a guess.
Can you work with our existing platform?
Yes, and a large share of our work is exactly this. Whether you need performance and infrastructure improvements, new features, a rebuild off a stack you've outgrown, or help getting ready to scale, we work within what's already there instead of starting over by default.
Do you build AI features into existing products?
Yes. We add LLM-backed features, agents, automations, and semantic search into products that are already live, wired into your real workflows rather than sitting off to the side. We handle the parts teams often miss too, like cost control, evaluation, and reliability, so the feature holds up in production.
Do you provide ongoing development after launch?
Yes. Development is one part of a larger engagement, and we stay close to the outcome after a product ships, not just the release date. Most platforms keep evolving after launch, and we keep building alongside your team as new features, integrations, and scale requirements come up.
Who owns the source code and IP?
You do. The code, design, and product IP belong to you. Your SaaS business is built on technology you control, not something we license back to you.
Find out what’s actually worth building.
20 minutes. No obligation. No sales pitch — just a clear read on your highest-value opportunity.
Book your free strategy call →
