Tokenized Securities & Bonds
We build policy-gated security token contracts (ERC-3643, ERC-1400) with whitelist registries, transfer restrictions, and exemption-pattern transfer logic embedded at the contract layer as your counsel specifies.
Our Services
Compliant on-chain representation of regulated assets - engineered for transfer restrictions, NAV attestation, qualified custody, and the operational realities of regulated issuance.
$1.2B+
Regulated asset value tokenized across deployments
50+
Issuance programmes shipped across asset classes
12+
Jurisdictions covered across deployments
8+
Years of regulated infrastructure engineering
Our services
Nine RWA engineering disciplines - from policy-gated issuance and NAV oracle integration to fund administration interfaces and qualified custody coordination - each scoped independently and engineered for regulated production environments.
We build policy-gated security token contracts (ERC-3643, ERC-1400) with whitelist registries, transfer restrictions, and exemption-pattern transfer logic embedded at the contract layer as your counsel specifies.
We deploy property-backed token contracts with SPV-anchored ownership, rent-distribution logic, and title-verification oracle integration - designed for regulated transfer flows and investor onboarding.
We engineer fund-share token contracts with NAV oracle integration, subscription/redemption queues, and fund administrator integration for regulated open-end and closed-end vehicles.
We build commodity-backed and carbon-credit token contracts with attestation oracles, custodian-anchored mint paths, and registry-compatible burn-on-retirement logic.
We deploy private credit and trade finance token contracts with cash-flow waterfall logic, originator attestation, and investor reporting infrastructure for regulated credit programmes.
We implement KYC/AML attestation flows, accredited investor verification, jurisdictional transfer restrictions, and lock-up enforcement at the contract layer - producing audit trails your examiners can review.
We design signer-quorum NAV update flows, third-party attestation integrations, and on-chain proof-of-reserve mechanisms for fund administrators and custodians.
We connect tokenized issuance to qualified custodians, transfer agents, and traditional settlement rails - including T+0/T+1 reconciliation patterns and bank custody bridges as your programme defines.
We build KYC-gated subscription flows, accredited investor verification, regulatory reporting dashboards, and audit-ready transaction lineage for issuers and regulators.
Next step
Share your asset class, jurisdictions, and target launch - we respond within one business day with a scoped recommendation, not a sales pitch.
Delivery scope
Every engagement produces a defined artifact set. Scope is agreed upfront; nothing is a billable surprise.
Asset class, exemption framework your counsel selects, and transfer restriction matrix documented in coordination with your counsel before architecture decisions.
Standard selection (for example ERC-3643, ERC-1400, or a custom pattern), whitelist registry design, and on-contract compliance logic specified for the asset class and jurisdictions in scope.
Signer quorum, attestation cadence, and fallback procedures for NAV updates, proof-of-reserve, and custody confirmations defined and stress-tested.
Integration interfaces with qualified custodians, transfer agents, and fund administrators specified - including reconciliation flows and break procedures.
Natspec-complete contracts with invariant tests, compliance simulation, and gas profiling - handed to your audit firm or ours with no preparation gap.
Documented procedures for mint/burn ceremonies, NAV updates, transfer disputes, regulatory reporting, and audit-trail export - handed to your operations and compliance teams.
Tooling stack
Chosen for regulatory compatibility, custodian integration track record, and production reliability across regulated issuance programmes.
Default stack
Solidity · ERC-3643 · Chainlink Proof-of-Reserve · Hyperledger Besu · OpenZeppelin
EVM contracts
Audit-friendly EVM
Tooling & SDKs
Solana SPL securities
Permissioned chain modules
Compliance modelling
Hyperledger Fabric chaincode
Test & deploy framework
Dev environment
Aptos & Sui
T-REX security token
Security token standard
Restricted transfers
Tokenised vault
Secure libraries
Compliance framework
Security token toolkit
Issuance platform
RWA blockchain
RWA architecture
Public L1 issuance
Enterprise EVM
EVM scaling
Subnet for regulated assets
L2 issuance
RWA-native L1
Cross-border settlement
Permissioned EVM
Permissioned
Privacy-preserving DLT
Reserve attestation
Off-chain computation
Cross-chain messaging
AML monitoring
Compliance screening
KYC verification
KYC/AML platform
Institutional custody
Qualified custody
Traditional custody bridge
Trust & diligence
We coordinate audit and code review with recognised third-party firms your stakeholders, regulators, custodians, and institutional allocators already trust - a critical signal for regulated issuance programmes and fund administrator diligence.
Third-party names and marks belong to their respective owners.
Partner with us
RWA tokenization isn't DeFi with a regulatory veneer. A misconfigured transfer restriction creates an unregistered securities offering. A failed NAV update strands fund subscriptions. A custody integration that breaks reconciliation triggers an SEC inquiry, not a Twitter post-mortem. We build for issuers, fund administrators, and asset managers who treat tokenization as regulated financial infrastructure - with compliance logic at the contract layer, attested NAV flows, and operational handoff that satisfies your auditors, regulators, and qualified custodians from day one.
Why Bitronix
Not a feature list. Six specific reasons issuers, fund administrators, and asset managers choose Bitronix for tokenization programmes that must clear legal review, satisfy regulators, and integrate with traditional custody and settlement infrastructure.
We don't bolt compliance onto crypto contracts. Whitelist registries, transfer restrictions, jurisdictional logic, and lock-up enforcement are designed at the contract layer - coordinated with your counsel before development begins. Your regulators see compliance as code, not as a policy document hoping the contract behaves.
We integrate with qualified custodians (Anchorage, Fireblocks, BNY Mellon), transfer agents, and fund administrators as a default deliverable - not as a custom add-on. The reconciliation flows, break procedures, and operational handoffs are specified before contract development, not improvised after.
You see every architectural decision, every test result, and every compliance-logic output as we build. Your legal, compliance, and operations teams get a live documentation trail they can review at any phase - and hand to regulators, auditors, and institutional allocators during diligence.
We deploy across public L1s, permissioned networks (Hyperledger Besu, Quorum, Canton), and privacy-preserving chains based on your regulatory and counterparty requirements - not on our tooling preferences. Custodian integration, observability, and transfer-agent compatibility drive the chain decision.
Documentation, regulatory reporting flows, and audit-trail exports are part of the engagement, not a change order. Your compliance team takes over with confidence - or we stay on retainer through your regulatory examinations and audits.
Our case studies are public, our tech stacks are listed, and our partners are named. Read the architecture, check the chains, verify the firms. We give regulators, custodians, and allocators the evidence to decide - not asks to trust.
Security & testing methodology
Most RWA tokenization failures aren't smart contract bugs - they're compliance gaps, custody integration breaks, and NAV reconciliation failures that surface during regulatory examination. We engineer the preventable ones out so your programme earns regulatory confidence, not enforcement action.
Before contract code is written, we map your asset class to the exemption framework your counsel selects (for example Reg D, Reg S, Reg A+, MiCA, MAS). Transfer restrictions, holding period requirements, jurisdictional gating, and accredited investor verification are documented before architecture decisions - so the contract enforces what your counsel intends.
Whitelist registries, transfer restrictions, and lock-up enforcement are encoded as on-chain compliance logic and tested against every transfer scenario your asset class encounters: secondary transfers, inheritance, custodian rebalancing, jurisdictional changes. Logic errors are caught before they become operational incidents.
Signer quorum failures, custodian downtime, oracle delays, and attestation discrepancies are simulated before launch. NAV update flows, proof-of-reserve verification, and fund administrator integration are tested under failure modes - not only nominal paths.
We integrate with qualified custodians, transfer agents, and traditional settlement infrastructure (including DTCC-aligned patterns where applicable, bank custody, and fund administrator platforms) and validate end-to-end reconciliation. Break procedures are documented before launch, not improvised during the first reconciliation incident.
Every regulated action - mint, burn, transfer, NAV update, compliance check - produces an audit trail your regulators, auditors, and fund administrators can export and verify. Reporting flows are validated against your existing compliance reporting cadence.
Every engagement produces a structured handoff: natspec-complete code, documented invariants, compliance logic specification, custodian and transfer-agent integration documentation, NAV attestation flow diagrams, and a threat model your auditors and regulators can due diligence end to end.
Our methodology is available to review before you engage.
Asset classes
Nine asset categories where tokenization is replacing legacy issuance, settlement, and investor servicing infrastructure - under regulated conditions.
Property-backed tokens, fractional ownership instruments, and rent-distributing receipts - issued through SPVs with regulated transfer restrictions, title-verification oracles, and NAV reporting integrated with property administrators.
Learn morePrivate credit, trade finance, and direct lending tokens with cash-flow waterfall logic, originator attestation, and investor reporting - engineered for regulated credit programmes and qualified institutional buyers.
Learn moreFund-share tokens for private funds, money market funds, and tokenized treasuries - with NAV oracle integration, subscription/redemption queues, and fund administrator integration.
Learn moreTokenized treasury bonds, municipal debt, and CBDC pilots - issued on permissioned or hybrid networks with regulator-grade reporting and traditional settlement integration.
Learn moreGold, oil, and agricultural commodity tokens with custodian-anchored mint paths, attestation oracles, and physical-delivery redemption flows.
Learn moreCarbon credit issuance, retirement, and trading instruments with registry integration (Verra, Gold Standard), attestation oracles, and ESG reporting infrastructure.
Learn moreRoyalty-backed tokens for pharmaceutical revenue streams, clinical-trial financing instruments, and tokenized receivables - designed for regulated investor pools and HIPAA-compatible attestation.
Learn moreCatastrophe bonds, reinsurance treaty tokens, and parametric coverage instruments - settling against oracle-verified events with regulated transfer restrictions.
Learn moreFractionalized fine art, luxury asset tokens, and collectibles-backed instruments - with custodian-anchored authenticity attestation and regulated investor onboarding.
Learn moreExecution model
No handoffs that lose context. The team that scopes your RWA tokenization programme ships it and supports it post-launch. Every phase produces a defined artifact - nothing moves forward without it.
Timeline: 1-2 weeks
Asset class, exemption framework your counsel defines, jurisdictional scope, custodian arrangements, and compliance requirements mapped in coordination with your counsel before architecture decisions.
Timeline: 2-4 weeks
Token standard, whitelist registry, compliance logic, NAV oracle topology, and custody integration interfaces documented - including alignment with counsel's interpretation of applicable rules.
Timeline: 4-12 weeks depending on scope
Token contracts, compliance logic, oracle infrastructure, and integration services built against the spec with continuous compliance simulation in CI.
Timeline: 3-8 weeks depending on audit firm availability
Contracts submitted to chosen firm; compliance logic validated against legal review; custodian and transfer-agent integration end-to-end tested. Findings triaged and remediated through to sign-off.
Timeline: 1-3 weeks
Deterministic deployment, custodian onboarding, transfer-agent integration cutover, regulatory reporting activation, and investor-facing infrastructure go-live against explicit launch criteria.
Timeline: Ongoing - retainer or per-incident
Compliance monitoring, NAV update operations, custodian reconciliation oversight, regulatory reporting cycles, and incident response under defined SLAs.
Timelines assume responsive client feedback at phase gates and prompt counsel review at regulatory checkpoints. Legal review of compliance logic, custodian onboarding, and audit firm scheduling are typically the pacing items - programmes targeting a specific regulatory window should engage Discovery 4-6 months before target issuance.
How we partner
Three ways to engage - structured around how your team works, not how we prefer to sell. Every model operates on the same delivery standard, the same engineering team, and the same accountability chain.
3-12 months · 2-5 engineers · Full-time exclusive
Your RWA tokenization programme gets a lead contracts engineer, compliance-aware reviewer, and integrations specialist working exclusively on your issuance - no context-switching. Suited to full issuance programmes, multi-asset rollouts, and post-launch operations.
Best for: Flagship issuance, regulated multi-jurisdiction programmes, teams replacing vendors mid-flight
1-6 months · 1-3 engineers · Integrated with your team
We embed with your legal, fund ops, and engineering teams - working in your repositories and programme rooms. You retain counsel-led regulatory interpretation; we bring contract-layer compliance encoding, custodian integration depth, and NAV attestation expertise.
Best for: In-house teams shipping a major issuance, asset managers extending to new instruments, treasury-led tokenization
4-16 weeks · Fixed deliverables · Fixed price
Defined scope and price agreed before work begins. Issuance programmes, custodian integration sprints, and regulatory readiness reviews are common project-based formats - milestone gates and no billable surprises.
Best for: Issuance programmes, custodian integration sprints, regulatory readiness reviews, NAV oracle cutovers
Not sure which model fits? Book a 30-min scoping call → - we'll recommend the right structure based on your team, timeline, and RWA tokenization programme scope.
Case studies
Regulated issuance programmes, custodian integrations, and investor reporting - programmes you can diligence end to end. Case narratives are placeholders; verify against real client work before publishing.
RWA tokenization development - policy-gated minting, NAV oracle quorum, and qualified-custodian segregation on Ethereum
Harbor is on-chain settlement infrastructure we built for tokenizing real-world assets (RWAs). It connects off-chain custody and attestations to transferable reference tokens: mint and burn paths are policy-gated, NAV updates are bound to a signer quorum, and redemption queues stay observable to both issuers and investors. Bitronix engineered the full settlement surface - core contracts, compliance modules, and verification tooling - to mirror fund rules while keeping investor data off-chain.
$28M in regulated asset references settled on-chain across 6 institutional counterparties with zero reconciliation breaks across 11 months.
Tech stack
DeFi lending protocol development - isolated pools, configurable LTV, risk-bounded liquidations, and Chainlink oracle safeguards
Meridian is an isolated-pool DeFi lending protocol we engineered for institutional desks. It pairs aggressive capital efficiency with conservative risk controls: per-asset silos, configurable loan-to-value (LTV) and liquidation bonuses, and predictable auction paths that keep solvency provable under stress. Bitronix delivered the full lending-protocol surface - Solidity markets, oracle safeguards, and a composable liquidation router - built audit-ready from day one.
Isolated lending markets with provable solvency semantics and conservative oracle fail-closed behaviour.
Tech stack
Uniswap-style AMM DEX development - constant-product and stable pools, swap router, and liquidity analytics on MERN + Solidity
ProSwap is a custom decentralized exchange (DEX) we built in the Uniswap tradition: an automated market maker with constant-product and stable-style pools, configurable slippage controls, and a swap router the client could brand and deploy to their target chain. Bitronix delivered the full AMM stack - Solidity pool and router contracts, a trader-facing swap app, pool analytics, and an operator panel - engineered for a controlled mainnet launch.
On-chain liquidity infrastructure suitable for tokenised asset pairs and controlled routing.
Tech stack
Polymarket-style prediction market development - outcome-share trading, Chainlink resolution, and collateral accounting on MEAN/MERN + Solidity
Uwin is a custom prediction market platform we built end-to-end, inspired by Polymarket: traders buy and sell outcome shares on real-world events, with transparent resolution rules and deep liquidity across binary and multi-outcome markets. Bitronix delivered the full surface - trader app, operator console, smart contracts, and oracle-backed settlement - rather than skinning a generic template.
Collateralised outcome markets with oracle boundaries suited to objective settlement workflows.
Tech stack
Google reviews
Verified feedback from our Google Business Profile.
Other services
Explore neighbouring practices - same delivery bar, shared architectural standards.
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View serviceNext step
Share your asset class, jurisdictions, and target issuance window - we respond within one business day with a scoped recommendation.
FAQ
Straight answers for issuers, fund administrators, asset managers, and procurement teams - before you enter diligence.
No - and any RWA partner who tells you they do should be a red flag. We are an engineering firm, not a law firm. We do not provide legal opinions on whether your tokenization programme satisfies Reg D, Reg S, Reg A+, MiCA, or any other regulatory framework. That work belongs with qualified securities counsel, and we coordinate closely with the firm you choose. What we do provide is engineering execution against the regulatory structure your counsel defines: encoding their transfer restrictions as on-chain compliance logic, integrating with the qualified custodian or transfer agent they approve, and producing the audit trails and regulatory reporting your compliance team will hand to examiners. We've worked with counsel from major securities firms across multiple jurisdictions - and we run engineering decisions past your counsel at every architecture checkpoint, not just at launch. If you don't have securities counsel engaged yet, we can recommend firms we've worked with before - but engaging counsel is the first step in any RWA programme, before any engineering scoping conversation. Anyone who tells you otherwise is selling you future regulatory risk.
ERC-3643 (T-REX-style), ERC-1400 family patterns, ERC-1404-style transfer hooks, ERC-4626 vault interfaces where applicable, and custom standards when counsel and auditors sign off. Framework references (for example Reg D / Reg S patterns, MiCA-aligned reporting hooks) are implemented as your counsel specifies - we encode requirements; we do not certify outcomes.
We specify API or message flows, reconciliation cadence, break procedures, and on-chain attestation boundaries - then build integration services and tests against those contracts. Named providers (Anchorage, Fireblocks, BNY Mellon, others) are wired when your programme selects them; we do not imply endorsement from any custodian without your executed arrangement.
Yes - Hyperledger Besu, Quorum, Fabric-adjacent bridging, Canton where applicable, and EVM-compatible private environments. The network choice follows regulatory posture, custodian connectivity, and transfer-agent requirements.
We design signer quorum, heartbeat checks, staleness handling, and failover paths - often integrating Chainlink Proof-of-Reserve or comparable attestations your custodian or fund administrator supports. Scenarios include delayed NAV, partial attestation failure, and custodian rotation.
Yes - jurisdictional matrices, investor eligibility, and lock-up rules are encoded per counsel's transfer restriction schedule. Secondary transfer rules, forced transfers, and administrative freezes are tested against your scenario list.
We integrate with platforms such as Sumsub, Onfido, or your existing stack: credential formats, allowlist updates, revocation, and audit logs. On-chain representation stays minimal; PII stays in approved systems.
Yes - event schemas, export formats, and scheduled reports aligned to your compliance cadence. Your team owns filing obligations; we deliver the technical artifacts and integration points.
Discovery through audit-ready issuance often runs 3-9 months depending on asset class, custodian integration depth, and audit scheduling. Core team: lead contracts engineer, compliance-aware reviewer, integrations engineer - scaled per scope.
Asset class, counsel contact, target jurisdictions, custody and transfer-agent arrangements (or intent to select), investor onboarding stack, reporting cadence, and target issuance window. We respond within one business day with a scoped recommendation.