Smart contracts and decentralised applications on Ethereum, BNB Chain, Polygon, Arbitrum, Optimism, Base, and Avalanche, from one Solidity codebase, deployed and audited across every chain your product needs.
The Ethereum Virtual Machine is the closest thing Web3 has to a standard. Ethereum itself settles the most value, BNB Chain and Polygon carry enormous transaction volume at low cost, and rollups like Arbitrum, Optimism, and Base give you Ethereum security at a fraction of the fee. They all run the same bytecode, which means one well-written Solidity codebase can serve all of them, provided it is written with the differences in mind.
We build across that whole surface: token and DeFi contracts, NFT platforms, DAO and governance systems, and the dApps and backends around them. Deployment is treated as engineering rather than a script: deterministic addresses across chains, verified sources on every explorer, upgrade authority held by a multisig, and monitoring in place before value arrives.
Block 21 480 933
12s block · 184 txs · 14 gwei · verified
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Contract deploy · source verified
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ERC-20 transfer · multicall batch
Contracts, applications, and deployments across the EVM ecosystem.
Solidity and Vyper contracts written to be read by an auditor: clear, tested, and no more complex than the problem requires.
Token launches and the financial primitives around them, with the arithmetic and incentive design reviewed properly.
Collections, minting infrastructure, and marketplaces built for the gas conditions they will actually launch into.
The front end and its plumbing: wallet connection, transaction states, and multi-chain switching that does not confuse users.
Independent review of contracts before they hold value, using the same tooling professional audit firms rely on.
Getting the same product live and consistent across several chains, with the bridging and configuration that requires.
The networks, contract toolchains, and client libraries behind a production Web3 application.
Ethereum, the major layer 2 rollups, and the EVM-compatible chains beside them.
Contract languages and the toolchains we write, test, and deploy them with.
The libraries and front-end stack behind a Web3 application.
Analysis, fuzzing, price feeds, and the infrastructure that keeps a deployment healthy.
Working with something else? Our teams pick up new tools quickly. Tell us about your stack.
The engineering behind contracts that survive contact with real money.
Checks-effects-interactions, guarded external calls, and role-based permissions applied consistently rather than case by case.
Storage packing, calldata efficiency, and hot-path profiling, so mainnet costs stay defensible without obscuring the code.
Proxy patterns with storage-gap discipline and timelocked, multisig-controlled upgrades, or deliberate immutability where that is safer.
Price manipulation, sandwiching, and liquidation ordering considered during design, not discovered during an incident.
Scripted, deterministic deployments with verified sources, so the contract on every chain matches the code you reviewed.
Subgraphs and event indexing plus alerting on contract activity, so anomalies surface before users report them.
Where the deepest liquidity and the largest developer ecosystem in Web3 pay off.
Exchanges, lending markets, vaults, and yield strategies built where the liquidity already is.
Collections, ticketing, and membership products on the standards every wallet and marketplace supports.
Token-weighted voting, treasuries, and timelocked execution for organisations run on chain.
Stablecoin flows, tokenised funds, and RWA platforms deployed on low-fee chains and rollups.
From contract specification to a verified, monitored mainnet deployment.
We define what the contracts must guarantee, then choose the chains: Ethereum for settlement and liquidity, BNB Chain or Polygon for volume and cost, a rollup where you want Ethereum security at L2 fees.
Contract boundaries, upgrade strategy, access control, and token standards specified up front, with the trust assumptions written down so everyone reviewing them sees the same picture.
Solidity development with Foundry from the first commit: unit tests, fuzz tests, invariant tests, and forked-mainnet integration tests against the protocols you depend on.
The dApp, wallet integration, and indexing built alongside the contracts, including the transaction and error states that decide whether users trust the product.
Internal review, static analysis, and fuzzing, then an external audit where value at risk warrants it, followed by remediation and a re-test before deployment.
Scripted deployments with source verification on each chain, multisig ownership handover, and monitoring and alerting live from the first transaction.
What teams ask before starting an Ethereum or EVM project.
Ethereum mainnet when settlement assurance and deep liquidity matter more than fees. Arbitrum, Optimism, or Base when you want Ethereum-derived security at a fraction of the cost. These are usually the default for new consumer-facing products. BNB Chain and Polygon when transaction volume is high and cost per transaction has to be near zero. Many products deploy to several, and because they share the EVM the contracts largely do not change; the configuration, oracles, and bridging do.
If they will hold or control meaningful value, yes, and no internal process replaces it. We build so that an audit goes smoothly: documented invariants, high test coverage including fuzz and invariant suites, static analysis in CI, and code written for readability. That reduces both audit cost and the number of findings. For low-value or internal contracts, a thorough internal review is sometimes proportionate, and we will say so rather than sell you an audit you do not need.
It is a trust trade-off, not a technical default. Upgradeable proxies let you fix bugs and ship improvements, but they mean whoever holds the upgrade key can change the rules, which users and auditors will scrutinise. We normally recommend upgradeability behind a multisig and a timelock during a protocol’s early life, with a documented path to making the core immutable once it has stabilised.
Mostly through design rather than micro-optimisation: minimising storage writes, packing structs into slots, keeping loops bounded, batching operations, and moving anything that does not need consensus off chain. We profile the hot paths with Foundry’s gas reports and optimise where it matters, without turning readable code into something an auditor cannot follow.
Yes, and we make the deployment reproducible: scripted, with CREATE2 for identical addresses across chains where that helps, and source verification on every explorer. What needs attention per chain is the surrounding configuration: oracle feeds, block time assumptions, native token decimals and wrapped assets, and any cross-chain messaging between deployments.
A token with vesting and a simple dApp is typically 6 to 10 weeks. A DeFi protocol or NFT platform with multiple contracts, a front end, indexing, and an external audit usually runs 4 to 8 months, with the audit and remediation cycle a meaningful portion of that. We deploy to a testnet in the first weeks so the flows can be exercised long before mainnet.
Not every product belongs on the EVM. We build across these ecosystems too.
Tell us what your contracts have to do and which chains you are targeting, and we will come back with an architecture, a security plan, and a delivery timeline.