Audited, always
Independent external audit before mainnet, with findings remediated and re-reviewed. No exceptions.
Distributed Trust
Blockchain where shared truth is the actual problem
Distributed ledgers solve a narrow problem exceptionally well: multiple parties who do not fully trust each other needing one agreed record. We build for those cases — provenance, settlement, credentials, tokenised assets — and we tell you plainly when a database would serve you better.
0+
Blockchain engagements
0%
Contracts externally audited pre-launch
0 chains
Production networks supported
Overview
Engineering discipline applied to immutable code
Smart contracts are unforgiving: deployed code is public, adversarial incentives are real, and a mistake can be unrecoverable. We work accordingly — threat modelling first, formal specification of invariants, property-based and fuzz testing, internal review, then an independent external audit before any mainnet deployment.
Most enterprise value sits on permissioned networks or Layer 2 rollups, where throughput and cost are predictable and participants are known. We design the governance and upgrade model as carefully as the contract logic.
Off-chain matters just as much. Indexing, event handling, key custody, wallet UX and integration with your ERP determine whether the solution is usable, and that is where most of our engineering effort lands.
Invariant-driven testing
Properties specified formally, then attacked with fuzzing, symbolic execution and fork-based scenario tests.
Upgrade & governance design
Explicit admin roles, timelocks, multisig custody and pause mechanisms decided before deployment.
Honest fit assessment
We will recommend a conventional database when there is no genuine multi-party trust problem to solve.
What we build
Capabilities you get on day one
The components below are engineered patterns we have shipped repeatedly — not concepts we would be exploring for the first time on your project.
Security-first contracts
Threat model, invariant specification, fuzz and property testing, internal review and independent external audit.
Provenance tracking
End-to-end custody chains with tamper-evident events, IoT sensor attestation and consumer-facing verification.
Enterprise integration
ERP, WMS and payment connectivity so on-chain state stays reconciled with your systems of record.
Indexing layer
Event indexers, subgraphs and read APIs that make chain data queryable at application speed.
Key custody design
HSM and MPC custody, multisig treasury policy, role separation and documented recovery procedures.
Usable Web3 UX
Account abstraction, gas sponsorship and fiat on-ramps so users are not required to understand the plumbing.
Capabilities
Everything inside our blockchain & web3 practice
The full scope of the practice. Engagements typically draw on a focused subset — this is the bench you have access to.
Smart Contracts & Protocol
- Smart contract development (Solidity)
- Rust contracts (Solana, NEAR, CosmWasm)
- Contract security auditing & remediation
- Gas & storage optimisation
- Upgradeable proxy patterns
- Multisig & timelock governance
- Oracle integration (Chainlink)
- Cross-chain bridging patterns
Enterprise Ledger
- Hyperledger Fabric networks
- Permissioned consortium design
- Supply chain traceability & provenance
- Trade finance & settlement workflows
- Document notarisation & timestamping
- Carbon & ESG credit registries
- Tokenised real-world assets
- Regulatory reporting on-chain
Identity & Credentials
- Decentralised identity (DID)
- Verifiable credentials (W3C VC)
- Self-sovereign identity wallets
- KYC / AML integration patterns
- Zero-knowledge proof applications
- Access control via on-chain attestation
- Academic & professional credentialing
- Consent & data-sharing registries
Web3 Applications
- dApp front-end development
- Wallet integration & account abstraction
- NFT platforms & marketplaces
- Crypto wallet development
- Token design & tokenomics review
- Subgraph & indexing infrastructure
- Node operation & RPC infrastructure
- Custody & key management architecture
Business impact
The outcomes clients measure
Figures are medians across delivered engagements in this practice. We will baseline your own numbers during discovery rather than promise these.
↓ 70%
Faster dispute resolution
A shared, tamper-evident record removes the reconciliation argument between counterparties.
Full
Chain-of-custody visibility
Auditable provenance from raw material to end customer, verifiable independently.
↓ 90%
Lower transaction cost
Layer 2 settlement and batching versus mainnet execution for high-volume flows.
0
Post-launch critical findings
Across audited contracts deployed under our security process.
Technology stack
Blockchain & Web3 technology stack
Selected per engagement against your existing estate, your team's skills and total cost of ownership — never by partnership tier.
Contracts
- Solidity
- Rust
- Vyper
- Foundry
- Hardhat
- OpenZeppelin
Networks
- Ethereum
- Polygon
- Arbitrum
- Base
- Solana
- Hyperledger Fabric
Security
- Slither
- Mythril
- Echidna
- Certora
- Tenderly
Infrastructure
- The Graph
- Alchemy
- Infura
- IPFS
- Chainlink
- Ethers.js
Identity
- W3C DID
- Verifiable Credentials
- Circom
- zk-SNARKs
- Sismo
Custody
- Fireblocks
- Safe (Gnosis)
- AWS CloudHSM
- MPC wallets
How we deliver
How a blockchain & web3 engagement runs
Six stages, each with a defined output. You can stop after any one of them and still hold something useful.
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Fit assessment
Test the multi-party trust premise honestly. If a shared database and signed audit log would suffice, we say so.
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Architecture & tokenomics
Network selection, on-chain versus off-chain boundary, data model, governance, upgrade path and economic design review.
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Contract development
Specification of invariants, test-driven implementation, gas profiling and continuous static analysis.
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Audit & remediation
Internal review, then independent external audit, remediation, re-review and a published report.
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Application & integration
dApp or portal, indexing layer, wallet and custody setup, and enterprise system reconciliation.
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Deploy & operate
Testnet rehearsal, staged mainnet launch, monitoring, incident playbooks and treasury operations support.
Industries we serve with this practice
Engagement models
How to start with Blockchain & Web3
Three commercial shapes. Most clients begin with an assessment and move into delivery once the plan is agreed.
Fixed-price assessment
From $12,000
Two to four weeks. Produces a prioritised backlog, target architecture, risk register and a costed delivery plan you own outright.
- Named architect
- Executive readout
- No obligation to proceed
Most common
Milestone delivery
Scoped per phase
Well-bounded phases priced against agreed acceptance criteria. Suited to migrations, integrations and defined product increments.
- Acceptance-based billing
- Change control included
- Fortnightly demos
Dedicated pod
Monthly retainer
An embedded team — lead, engineers, QA — working in your sprints and tooling with US-hours overlap from our India centre.
- Scale up or down monthly
- Your definition of done
- Direct team access
Indicative ranges for planning purposes. Final pricing follows scope confirmation — we do not quote before we understand the problem.
FAQs
Blockchain & Web3 — frequently asked
Do we actually need a blockchain?
Ask whether multiple organisations that do not fully trust one another need to agree on one record, without any single party controlling it. If yes, a ledger is a good fit. If a single company owns the data, a well-designed database with cryptographic audit logging gives you the integrity benefit at a fraction of the cost and complexity. We run that assessment first, and we regularly conclude "no".
How do you handle the risk of immutable bugs?
Layered defence: invariant specification, comprehensive unit and property-based testing, fuzzing, static analysis, internal review, independent external audit, testnet rehearsal, then a staged mainnet launch with pause capability and value caps in the early period. Upgrade paths are designed deliberately with timelocks and multisig control.
What about energy consumption?
That criticism applied to proof-of-work. Ethereum's move to proof-of-stake cut its energy use by over 99%, and permissioned networks like Hyperledger Fabric were never energy-intensive. Every network we recommend for enterprise use has negligible energy impact relative to conventional infrastructure.
Can blockchain data comply with GDPR?
Yes, with correct architecture. Personal data never goes on chain; only hashes, commitments or pointers do, with the underlying data held off chain where it can be corrected or erased. Getting this boundary wrong creates an unfixable compliance problem, so it is a design decision we make explicitly and document.
Do you provide contract audits as a standalone service?
Yes. Independent audits of contracts written by your team or another vendor, covering manual review, automated analysis, invariant testing and a formal report with severity-rated findings and remediation guidance, plus a re-review after fixes.
Related practices
Cyber Security
Offensive testing, SOC and SIEM, identity, cloud security and compliance programmes for ISO, GDPR and HIPAA.
Enterprise Software Development
Custom platforms, CRM, ERP, HRMS and workflow systems engineered for the way your business actually operates.
Emerging Technologies
AR/VR/MR, digital twins, spatial computing, robotics, edge AI and quantum-readiness advisory.
Data Engineering & Analytics
Lakehouse platforms, ETL/ELT pipelines and governed analytics that turn scattered systems into one trusted layer.
Distributed Trust
Ready to talk about blockchain & web3?
Send the context — current systems, constraints, what you have already tried. An architect from this practice will reply, usually within one business day.