Case Studies

Blockchain Systems
Running in Production

Selected engagements across finance, product dApps, enterprise integration and security. Names are used with client permission; details are summarised.

NexTrade Exchange — Settlement Network

"RelayLink designed and delivered our settlement layer on a permissioned blockchain network. The integration passed our external audit on the first attempt."

Faster settlement
40%Lower reconciliation cost
$2.1MAnnual savings

NexTrade needed to settle transactions between member institutions without a central operator. RelayLink designed a permissioned network with private data channels, built the smart contract settlement logic, and integrated it with the existing core systems. Delivery ran for five months from discovery to production.

Hyperledger Fabric Enterprise Integration Security Audit

OrbitFi — dApp & Smart Contracts

"Our dApp went from architecture to production in six weeks. The smart contracts passed two independent audits with zero critical findings."

6 wkTo production
150K+On-chain transactions

OrbitFi required a production-grade application with on-chain logic and reliable transaction handling. RelayLink delivered the contract suite, the indexed data layer and the frontend, then handed over documentation and a maintenance retainer.

Solidity dApp Engineering Indexed APIs

ChainForge — Smart Contract Security Review

"The audit report was precise, prioritised and genuinely useful. Their remediation support closed every finding before we deployed."

14Findings resolved
0Critical issues at launch

ChainForge engaged RelayLink for an independent review of a contract system already in development. Our team performed static analysis, adversarial testing and a manual review, then supported the engineering team through remediation and re-testing.

Security Audit Remediation Support

Meridian Labs — Enterprise Blockchain Integration

"They connected our legacy systems to a blockchain network without disrupting daily operations. The rollout was uneventful — exactly what we wanted."

4Systems integrated
99.99%Integration uptime

Meridian Labs needed to anchor compliance records to a blockchain network while keeping personal data off-chain. RelayLink built the integration layer, the proof-verification service and the operational monitoring, then trained the internal team.

Data Integrity API Integration Managed Infrastructure

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