Blockchain & Web3 Development Company in Tel Aviv

On-chain work is priced by what actually reaches mainnet: a scoped smart contract proof of concept at Tel Aviv rates, a production smart contract system (lending protocol, RWA tokenisation, MPC custody back-end, on-chain settlement), or full Web3 platforms with zk-rollup integration, ERC-4337 account abstraction, MPC wallet infrastructure, indexers, and mobile clients. Scope drivers include protocol design, Solidity or Cairo implementation, a Foundry test suite, and a hosted testnet demo. Tel Aviv rates sit above most European hubs because of the StarkWare and Fireblocks talent premium and the 8200 alumni pool. We give fixed-fee proposals in shekels with a USD reference, not open T and M estimates.

Yes. Our discovery phase runs an Israel Securities Authority classification on every token (is it a security under the Securities Law, 5728-1968, does the offering trigger prospectus obligations, does the platform need a Financial Asset Services license from the Capital Market, Insurance and Savings Authority, or a Hon Money Services license). For exchanges, custodians, and on-ramps we wire FATF Travel Rule (Recommendation 16) data sharing through Notabene, Sumsub Travel Rule, or TRP-protocol providers, integrate Chainalysis KYT or Elliptic Navigator for AML screening, and produce the policy documents the Capital Market Authority examiner expects on first inspection. We coordinate with Israeli crypto-specialist law firms (Herzog, Meitar, Pearl Cohen, Erdinast) on jurisdictional questions and do not give legal advice ourselves.

Yes, and Tel Aviv is the right city for it. StarkWare is headquartered here, the StarkNet ecosystem (Cairo language, Sierra IR, account abstraction native from day one) is locally supported, and we have shipped Cairo contracts and Account Abstraction wallets on StarkNet mainnet. We also build on zkSync Era, Scroll, Linea, Polygon zkEVM, and Base, with bridging through native L1 to L2 messengers and LayerZero, Wormhole, or Axelar when cross-rollup composition is needed. For applications that genuinely need zero-knowledge circuits beyond rollup execution (private voting, private DeFi, identity proofs), we work in Circom, Halo2, and Noir, and we scope formal review with Coinspect, Halborn, or ZK-specific firms like ZKSecurity and ChainSecurity for production deployments.

Tel Aviv defined modern MPC custody, so we build to that bar. For institutional clients we integrate Fireblocks (the dominant local platform) for trading desk, treasury, and exchange flows, with policy engines, address allow-listing, and travel-rule wiring. When a client needs sovereign key control we deploy self-hosted MPC using GG18, CMP, or Lindell-style protocols on hardware-isolated nodes inside AWS il-central-1 nitro enclaves or on-prem HSMs (Thales Luna, AWS CloudHSM, Marvell LiquidSecurity). Key ceremonies are filmed, witnessed, and documented for ISA inspection. We have shipped MPC integrations for Israeli OTC desks, family offices, and a regulated Capital Market Authority-licensed custodian, with full incident-response runbooks and recovery procedures tested twice a year.

When a project requires genuine cryptographic research (novel zk circuits, threshold-signature variants, post-quantum migration paths, formal-verification proofs of complex invariants), we scope collaborations with Tel Aviv University, Technion, Bar-Ilan, or Hebrew University cryptography labs rather than overselling in-house capability. Israeli academia produced the foundational work behind STARKs (Eli Ben-Sasson and the Technion group), MPC at scale (Yehuda Lindell at Bar-Ilan, also co-founder of Unbound and Coinbase Custody), and identity-based encryption. Our core team handles applied engineering, audit-ready Solidity and Cairo, indexers, and productionisation, which is where most Web3 projects actually stall. For standard work (ERC-20, ERC-721, ERC-4337, Safe modules, standard DeFi primitives) no academic partner is needed, and we will tell you up front which bucket your problem fits into.

Since 2023, all three hyperscalers run native Israeli regions. We default to AWS il-central-1 (Tel Aviv) for indexers, RPC fallbacks, MPC key shards, KYC document storage, and TheGraph self-hosted subgraphs. Azure Israel Central and GCP me-west1 (Tel Aviv) cover disaster recovery and cross-cloud HA. For ISA-licensed or Capital Market Authority-supervised entities that cannot offshore customer data or key material, this is the first time a fully sovereign-cloud blockchain stack is achievable in Israel without on-prem data centres. We document residency in the architecture diagram and the privacy and data-protection notice (Israeli Privacy Protection Law 5741-1981 and Privacy Protection Regulations on Data Security 5777-2017) so the Privacy Protection Authority examiner has a clear answer. Cross-border to AWS Frankfurt or Ireland is acceptable only for non-sensitive analytics and only after a documented impact assessment.

A typical Tel Aviv production system (lending protocol, RWA token, MPC custody back-end, perpetual exchange) takes sixteen to twenty-four weeks from kickoff to mainnet, assuming clear product requirements and audit time scoped from the start. Week 1 to 4 is protocol design, threat modelling, and economic review. Week 5 to 12 is Solidity or Cairo implementation, Foundry unit and invariant tests, Echidna fuzzing, and Halmos or Certora formal verification on critical paths. Week 13 to 16 is the external audit window (Halborn, Coinspect, OpenZeppelin, ChainSecurity), remediation rounds, and a second audit pass on changes. Week 17 to 20 is testnet deployment, bug bounty open on Immunefi, and shadow-mode operations. Week 21 onward is gradual mainnet rollout with TVL caps and gradual unlock. Skipping the audit window is the most common failure pattern, and we will refuse to push to mainnet without one.

Israeli blockchain R&D often qualifies for Innovation Authority (Rashut Hahadshanut) grants, including the Ideation Incentive Program, the Technological Incubators track, and R&D Fund support for novel protocol work, cryptographic research, and on-chain infrastructure that pushes the state of the art. Cairo compiler tooling, novel zk circuits, MPC research, and post-quantum migration paths typically clear the technological-uncertainty bar; standard ERC-20 issuance does not. The Trade-Up program supports later-stage scale-up and international expansion, and Yozma 2.0 channels matching capital through approved VCs. We deliver time-tracked engineering logs, technical narratives, experiment histories, and failed-hypothesis documentation suitable for an Innovation Authority application, but the grant submission and approval sit with your dedicated consultant and the Authority’s assessment committee. We do not draft the application itself.