Software development / Custom software development
Custom software, built around how your business works.
A custom software development company for web platforms, mobile apps and AI-powered business software, built end to end by one team and supported after launch.
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Custom software development services. From one workflow to a full product platform.
Business platforms
Software that connects the steps of a workflow into one system.
Web applications
React and Next.js platforms for customers, partners and staff.
Mobile apps
Native iOS and Android apps on a shared backend.
SaaS products
Multi-tenant products with plans, payments and admin.
AI features
Extraction, assistants, agents and recommendations built into the software.
Integrations
Connections to the CRM, ERP, payment and data systems you already use.
Roles and audit
Permissions and audit trails for teams and regulated work.
QA and releases
Testing, production releases and performance monitoring.
Support and scale
New features, performance and reliability as usage grows.
Software we have built. Each result comes from a delivered engagement.
AI SaaS for fit-out & construction
An AI SaaS platform from drawing to quotation, for English and Chinese-speaking teams.
5-stage connected workflow AI · InsuranceFull-stack AI platform for insurance
Fragmented policy, claims and correspondence data connected into one structured workflow.
~2.5x faster processing AI · SocialProject Nova: AI social discovery platform
Native iOS and Android apps and a React and Next.js web platform on one backend, with AI-assisted discovery. UK.
3 apps on one shared backend AI · Workflow automationWorkflow automation platform
AI extraction feeding a deterministic rules engine, with consistency checks built in.
~70% faster document prepHave a process your off-the-shelf tools cannot handle?
The technology behind our products. What our delivered platforms run on.
01 / 07
Mobile
Native apps and in-app payments.
- Native iOS
- Native Android
- Apple Pay
- Google Pay
02 / 07
Web
Web apps and dashboards.
- React
- Next.js
03 / 07
Backend
The services and APIs behind the product.
- Ruby on Rails
04 / 07
Data
Where product data lives.
- PostgreSQL
- Redis
05 / 07
Cloud and app services
Hosting, auth and app services.
- AWS
- Firebase
06 / 07
Payments and analytics
Taking payments and measuring what users do.
- Stripe
- Amplitude
07 / 07
AI
Models and tooling for AI features.
- OpenAI
- Anthropic Claude
- OpenRouter
- LangChain
- Langfuse
From idea to production. Four stages, with a working version reviewed at each one.
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Discovery
Map the workflow, the systems and data involved, and what good looks like.
Discovery notes
- How the work happens today
- The systems and data involved
- What good looks like
-
Scope & architecture
Agree the architecture, success measures and delivery milestones.
Solution design
- System architecture
- Integrations plan
- Delivery milestones
-
Build
Build against real data, with a working version reviewed at each milestone.
Working build
- Working software at each milestone
- Tests on real data
- User feedback
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Ship & support
Roll out to production with monitoring and a defined support window.
Production rollout
- Production rollout
- Monitoring
- Support window and roadmap
Why Avinya for custom software. One team from the first workshop to production.
Full-stack delivery
Web, mobile, backend, data and AI from one team.
Proven platforms
Construction, insurance, social and e-learning platforms in production.
Built to change
Modular architecture so the software keeps up with the business.
We stay after launch
A defined support window and a roadmap, not a handover and a goodbye.
Results from the software we built. Each number links to the engagement it came from.
Engagement models. Pick the shape that fits where you are.
Dedicated team
A dedicated team that works as an extension of yours, from first release to scale.
Project-based
A defined scope, milestones and delivery date for a specific product or workflow.
Consulting & advisory
Architecture and readiness advice before you commit to a build.
What our clients say.
AI SaaS for construction
“Avinya Labs delivered exactly what we needed. When a critical issue came up, the team stayed up until midnight so we weren't left hanging.”
Guides on this topic. Plain answers to the questions buyers ask first.
How to Build an MVP: Steps, Timeline and Cost Drivers
Seven steps from one customer and one job to a first release.
Read the guide → GuideWhy a Minimum Lovable Product Beats an MVP
What an MLP adds to an MVP, and when to choose it.
Read the guide → GuideWhat Does a Fractional CTO Do? When to Hire One (2026)
What a fractional CTO owns, and when a startup should hire one.
Read the guide →Custom software development FAQs.
What kind of custom software do you build?
Business platforms, SaaS products, web applications and mobile apps, often with AI built in. See our case studies.
Can you work with our existing systems?
Yes. We integrate with the CRM, ERP, payment and data systems you already use.
Do you build the mobile apps too?
Yes. See mobile app development.
How long does it take?
It depends on scope, platforms and integrations. We agree milestones up front and review a working version at each one.
Who owns the code?
Ownership, licensing and handover are agreed in the contract before work starts.
How does a custom software development company rescue a failing project?
We review the code, the backlog and the deployment first, then fix the biggest risks before adding features. Software project rescue is part of our custom software development, with security checked against the NIST Secure Software Development Framework.
Free tool
How ready is your business for AI?
Twenty questions, about four minutes. You get a score across five areas and what to fix first.