Blockchain & Web3 Development Company in Zurich

Audit tier and FINMA token classification move a Zurich smart-contract budget — a scoped smart-contract MVP for a Crypto Valley foundation grant or a Swiss fintech, a production protocol build with full Tier-1 external audit (Trail of Bits, OpenZeppelin, ConsenSys Diligence, Sigma Prime) and FINMA token-classification documentation, or full institutional digital-asset platforms with custody integration (Fireblocks, BitGo, Sygnum), DLT Act register implementation, and FINMA outsourcing documentation. Scope drivers include Solidity development, unit tests, fuzzing harness, and one round of internal review. Zurich rates sit at the top of European blockchain pricing, equal to London and ahead of Berlin. We quote fixed-fee against a written scope, never open T & M.

Switzerland’s Federal Act on the Adaptation of Federal Law to Developments in Distributed Ledger Technology (DLT Act) entered into force 1 August 2021 — the world’s first comprehensive crypto framework. Key elements: Article 973d-973g OR creates the uncertificated register security (Registerwertrecht), legally equivalent to a certificated security but native to DLT; Article 11a BankG creates a new DLT trading facility licence type; Article 1b BankG creates a sandbox up to CHF 1M deposits. Our scoping documents which provisions apply, structures the token (typically an asset token classified as a security with Article 973d OR plumbing), and aligns the issuance prospectus with Article 35-44 FinSA (Financial Services Act) where public-offering thresholds apply. Swiss-counsel coordination (MME, LEXR, Bär & Karrer, Homburger) is built into the workplan.

Yes. Institutional Swiss digital-asset platforms demand FINMA-bank-grade controls: FINMA Circular 18/3 outsourcing approval, full segregation-of-duties, four-eyes change control, immutable audit logs, sanctions screening (SECO list, OFAC, UN, EU consolidated), travel-rule compliance under FINMA-GwV revised in 2024 (Article 10 cross-border crypto transfers above CHF 1,000 require originator/beneficiary information per FATF Recommendation 16), and Suspicious Activity Reporting (SAR) to MROS (Money Laundering Reporting Office Switzerland). Custody architecture uses Fireblocks, BitGo, Copper, or Sygnum’s DLT Custodian, with HSM-backed key management (Thales nShield, AWS CloudHSM) and Swiss-resident multisig signers documented to FINMA. Architecture decision records are delivered in German, French, or English.

We default to Tier-1 audit firms for any contract handling user funds or carrying meaningful TVL: Trail of Bits (often the standard for DeFi), OpenZeppelin (Solidity ecosystem leader, OpenZeppelin Contracts library author), ConsenSys Diligence, Sigma Prime, Spearbit, Code4rena (competitive audit marketplace), and Sherlock (audit-as-insurance). For Solana, Ottersec and Halborn are commonly engaged. For Cosmos and Polkadot, Informal Systems and Sigma Prime have ecosystem depth. We scope audits at design phase, deliver code in audit-ready state (full NatSpec, invariant tests, fuzzing harness), and coordinate the response cycle through to mainnet deployment. Where TVL exceeds USD 100M or counterparty risk justifies the spend, we layer formal verification (Certora, Runtime Verification) on top of the audit.

Swiss crypto AML sits inside the GwG (Geldwäschereigesetz) and FINMA-Geldwäschereiverordnung. Codazz wires KYC/KYB via Onfido, Sumsub, or Swiss-resident PXL Vision for enhanced due diligence on Crypto Valley clients, sanctions screening via WorldCheck or Refinitiv, and transaction monitoring via Chainalysis KYT or TRM Labs. Travel-rule compliance under FINMA-GwV Article 10 (revised 2024 to drop the threshold to CHF 1,000 for crypto transfers) is implemented via TRP (Travel Rule Protocol) or Sumsub Travel Rule integration with Sygnum, AMINA, Bitcoin Suisse, and other Swiss VASP counterparties. Suspicious Activity Reports to MROS (Money Laundering Reporting Office Switzerland at fedpol) are draftable from the case management system. SRO membership (VQF is the common SRO for Crypto Valley non-bank FIs) integration is documented.

Yes. Ethereum Foundation, Solana Foundation, Polkadot Treasury, Cosmos Hub Community Pool, Aragon, dYdX Grants, Optimism RPGF, and Arbitrum DAO all run ecosystem grants out of Zug-registered legal entities or Cayman foundations administered from Zug. We have shipped grant-funded technical execution for indexers, developer tooling, governance frontends, formal-verification harnesses, and protocol upgrades. We deliver the deliverables-and-milestones tracking grant committees expect, publish open-source under MIT or Apache-2.0 (per grant terms), and coordinate with the foundation’s technical leads on code review. For multi-tranche grants we structure invoicing in CHF or stablecoin per the foundation’s preference (most Crypto Valley foundations pay in USDC or ETH against CHF or USD-denominated invoices).

The revised Federal Act on Data Protection (FADP, nFADP) entered into force 1 September 2023 and modernises Swiss data protection to align broadly with GDPR while retaining Swiss specifics. For Zurich Web3 clients we apply data minimisation, purpose limitation, and transparency at the smart-contract design layer (pseudonymous-by-default, off-chain personal data in EU/Swiss regions, no PII on-chain). Cross-border transfers benefit from the EU adequacy decision in both directions. Data processing inventories are maintained per Article 12 nFADP, DPIA (Data Protection Impact Assessment) per Article 22 nFADP is filed for high-risk processing. The FDPIC (Federal Data Protection and Information Commissioner) is the supervisory authority. Penalties under nFADP can reach CHF 250,000 for individuals — meaningful for Vorstand and Geschäftsleitung.

Yes. Tokenisation projects under Article 973d-973g OR (uncertificated register securities, Registerwertrechte) are a major Codazz workload. Real-estate tokenisation: fractional ownership of Zurich, Geneva, Basel commercial and residential property, with the Registerwertrecht as the legal wrapper and ERC-1400/ERC-3643 (T-REX) as the technical implementation. Equity tokenisation: private-company shares, growth-stage cap-table digitisation, often integrated with Aktionariat (Zurich-based, SIX-listed cap-table-on-blockchain). Fund tokenisation: real-asset fund units, often on SDX-adjacent rails or on Sygnum’s desygnate platform. We deliver the smart-contract layer, the DLT Act register implementation, the Article 35-44 FinSA prospectus alignment where public-offering thresholds apply, and the AMLA controls. Swiss counsel (MME, LEXR are common Crypto Valley firms) is built into the workplan from week one.