RelayLink is a blockchain development company. We design, build and operate blockchain technology for enterprises and product teams — smart contracts, decentralized applications, enterprise integrations and managed blockchain infrastructure.
// Provision a blockchain environment with the RelayLink Platform
import { RelayLink } from '@relaylink/platform';
const chain = await RelayLink.deploy({
network: 'polygon',
contracts: ['./contracts/AccessRegistry.sol'],
monitoring: true
});
console.log('Blockchain live at ' + chain.rpcUrl);From the first architecture workshop to production operations — one team owns the entire blockchain development lifecycle.
Architecture, chain selection, feasibility studies and technical roadmaps for blockchain technology adoption.
Audit-ready smart contracts in Solidity and Rust — token standards, access control, governance and escrow logic.
Production dApps with wallet integration, on-chain data indexing and reliable user experience across devices.
Connect ERP, CRM and core banking systems to blockchain networks through hardened APIs and data pipelines.
Manual and tool-assisted smart contract audits with a written report, severity ratings and remediation support.
Nodes, RPC gateways, indexers and monitoring — operated by RelayLink with defined service levels.
Our platform accelerates blockchain development with managed networks, developer tooling and production monitoring — so your team ships blockchain technology instead of maintaining it.
The RelayLink Platform gives your engineers a managed blockchain environment from day one: private and public networks, contract deployment pipelines and indexed on-chain data.
Every deployment ships with observability: block explorers, node health, transaction monitoring and alerting built into the platform.
Blockchain projects fail when the technology is treated as an experiment. Our process de-risks every stage.
We map your business process, define the on-chain scope and choose the right blockchain technology.
Architecture, data model, smart contract interfaces and a delivery plan with clear milestones.
Test-driven development, internal review and a full security pass before anything reaches production.
Deployment, monitoring, upgrades and support — we stay accountable for the system in production.
Our engineers work across public and permissioned blockchain networks — and we recommend the one that fits your requirements, not the one that is fashionable.
Ethereum, Polygon, Arbitrum, Optimism and Base — smart contracts, L2 scaling and account abstraction.
High-throughput programs in Rust, on-chain accounts and low-latency application design.
Hyperledger Fabric and Corda for permissioned, compliance-driven enterprise blockchain deployments.
Bridges, message passing and interoperability layers that move data safely between networks.
Static analysis, fuzzing, formal methods and independent review integrated into every build.
Subgraphs, custom indexers and analytics pipelines that make on-chain data usable in your product.
A selection of engagements where RelayLink delivered blockchain systems that are running today.
"RelayLink designed and delivered our settlement layer on a permissioned blockchain network. The integration passed our external audit on the first attempt."
"They understood our compliance constraints from week one and shipped a system our auditors signed off on."
Marcus Webb, Head of Security
"Our dApp went from architecture to production in six weeks. The smart contracts passed two independent audits with zero critical findings."
"The RelayLink team is the rare combination of blockchain depth and real product discipline."
Aisha Rahman, Product Lead
Start with a fixed-price audit, move into a build package, or hand us the ongoing care.
Full package details on the pricing page. Every package includes a named technical lead.
Teams that trusted RelayLink with their blockchain technology.
"RelayLink delivered our smart contract layer and enterprise integration in a single quarter. The code passed two external audits without a critical finding."
"Their engineers speak both blockchain and enterprise. That combination is why our permissioned network went live on schedule."
"From architecture to production in six weeks. The dApp RelayLink built handles our entire onboarding flow on-chain."
Smart contracts are immutable — so security engineering happens before deployment, not after.
Every contract is reviewed before it ships. Static analysis, adversarial testing and a manual review are part of our standard delivery process. Read more on our security page.
What companies usually ask before starting a blockchain project with us.
A complete blockchain technology solution: architecture and network selection, smart contract development, application and API integration, security review, deployment and ongoing operations. You get working software and the documentation your team needs to own it.
We start from your requirements — throughput, privacy, compliance, cost and ecosystem. Public EVM networks fit many product use cases; permissioned networks such as Hyperledger Fabric or Corda fit regulated enterprise processes. The recommendation is documented in the discovery phase.
Yes. Most of our enterprise engagements connect blockchain networks to existing ERP, CRM, identity or payment systems through hardened APIs, event pipelines and indexed on-chain data.
Yes. Our security team performs independent smart contract audits with a written report, severity ratings and remediation guidance — for code we wrote or for an existing codebase.
A focused smart contract or integration typically runs 2–3 weeks. A complete build with a dApp, backend and integrations usually runs 4–6 weeks. The audit produces a milestone plan before you commit to the full build.
Yes. The monthly care plan covers node operations, monitoring, upgrades, incident response and continued development. Service levels are defined in the plan.
Tell us what you want to build on blockchain technology. We will come back with an architecture, a plan and a realistic estimate.
Talk to a Blockchain Engineer