Web3 Development / dApp & smart contract development
dApp & smart contract development, audited before launch.
Custom contracts and decentralized apps for exchanges, DEXs and tokenization platforms, deployed across the chains you need.
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dApp & smart contract services. Contracts built, audited and deployed as one engagement.
Custom smart contracts
Contracts for exchanges, DEXs and asset-tokenization platforms.
dApp development
Web front ends that connect users to your contracts.
DEX & AMM logic
Swap and market maker contracts built for correctness.
Token contracts
Token standards and custom rules for your economy.
Governance contracts
On-chain governance, DAO-ready when you need it.
Multi-chain deployment
One engagement across every chain in scope.
Audit before launch
Every finding worked through before go-live.
Wallet connection
Smooth wallet onboarding for users.
Upgrades & support
Safe upgrade paths and support after launch.
Smart contract work we have shipped. Each result comes from a delivered engagement.
Smart contract audit & deployment
A full audit and multi-chain deployment, closing every finding before launch.
0 critical findings Web3 · TokenizationTokenization platform
A token economy and DAO-ready governance for a real-world-asset platform.
Market-ready token design Web3 · ExchangeCentralized crypto exchange
Matching engine, custody and KYC/AML built from scratch in a 20-week build.
99.9% uptime since launchBuilding a dApp?
From idea to launch. Four stages, with a working version reviewed at each one.
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Discovery
Map the dApp, the systems and data involved, and what good looks like.
Discovery notes
- Users and flows
- Chains in scope
- Launch date
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Scope & architecture
Agree the architecture, success measures and delivery milestones.
Solution design
- Contract architecture
- Audit plan
- Delivery milestones
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Build
Build against real data, with a working version reviewed at each milestone.
Working build
- Contracts and app built
- Audit findings closed
- Review at each milestone
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Ship & support
Roll out to production with monitoring and a defined support window.
Production rollout
- Multi-chain launch
- Monitoring
- Defined support window
Why Avinya for dApps and smart contracts. The contracts and the app built together.
Audited before launch
Contracts audited and every finding closed before deployment.
Contracts and app together
Smart contracts and the app are built by one team, so they fit.
Multi-chain support
Deployment coordinated across every chain in scope.
Built to stay live
99.9% uptime since launch on our exchange build.
Compliance from day one
KYC/AML and regulatory considerations are part of the architecture, not a retrofit.
Web3 and AI under one team
One studio for on-chain infrastructure and, where it helps, AI systems.
Results from our smart contract work. 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.
“We needed a custom NFT marketplace with royalty management and multi-chain support. Avinya Labs delivered beyond expectations. The platform is fast, visually appealing, and secure. Amazing work!”
“The custom-built DEX solution exceeded our expectations … Security and speed were top-notch, making user onboarding effortless!”
“We tokenized real estate assets on the blockchain with Avinya Labs, and they made the complex process feel simple.”
Guides on this topic. Plain answers to the questions buyers ask first.
Smart Contracts Explained: How They Work, Uses, Risks
What smart contracts are, where businesses use them and how to keep them secure.
Read the guide → GuideSmart Contract Audit Cost: What Drives the Price (2026)
What drives the price of an audit, and how to prepare for one.
Read the guide → GuideHow to Choose a Web3 Development Partner: A Checklist
What to check before hiring a blockchain development company.
Read the guide →dApp & smart contract FAQs.
Which chains do you work with?
We choose per use case after comparing chains, custody and infrastructure options. Our smart contract work has shipped across multiple chains.
How do you handle security?
Contracts go through a full audit before launch and every finding is worked through before deployment. Our most recent audit launched with zero critical findings.
Can you build the front end too?
Yes. We build the dApp interface and wallet connection alongside the contracts.
How long does a Web3 build take?
It depends on scope. For reference, we delivered a centralized exchange in 20 weeks and stablecoin payment rails in 5. We agree milestones up front.
How do you approach smart contract development safely?
Small, readable contracts, automated tests, an independent audit and a plan for upgrades and incident response. Our smart contract development follows the practices in the ethereum.org guide to smart contracts.