RWA tokenization services: developers and audits

Real-world asset tokenization services turn a claim on an asset (real estate, a fund share, a loan, an invoice, a commodity) into tokens that can be issued, held and transferred on a blockchain, with the issuer's rules written into the smart contracts. On smart-contract.com, you describe your tokenization project once and receive comparable quotes from vetted developers, then from independent auditors.

Tokenization is not a simple token launch. The contracts must enforce who may hold the token, when it may move and what happens when an investor loses access to a wallet. These rules come from your legal structure, which is why the technical work starts after, not before, your advisers have defined the framework.

What a tokenization project covers

A tokenization vendor designs and builds the on-chain part of your offering, and often the tools around it. Depending on your brief, the scope can include:

• The security token contract: issuance, supply management, decimals, and a standard adapted to regulated assets (an ERC-20 base with compliance extensions is common on EVM chains).
• Compliance rules in the token: whitelists of verified investors, transfer restrictions by country or investor category, lock-up periods, holding limits, and checks run before every transfer.
• Administrative controls: freezing an address, forced transfers or recovery ordered by the issuer, pausing, and role management, ideally behind a multisig and a timelock.
• Corporate actions: dividend or coupon distributions, redemptions, snapshots for votes.
• Integrations: identity and KYC providers, price or net asset value feeds through an oracle, custody solutions.
• The platform around the contracts: an investor portal (front end), an issuer back office and an indexer for reporting.
• Tests, deployment scripts and documentation, ready to hand over to an auditor.

When you need it

You need a tokenization developer when the legal and business framework is set and you want the rules of the offering to be enforced on-chain. Typical situations:

• An issuer or asset manager preparing a first tokenized offering.
• A real estate project that wants to represent shares of a property company as tokens.
• A platform adding tokenized products to an existing investment service.
• A prototype that must be rebuilt for production, or ported to another blockchain.

Regulatory point. Whether a token is a security, a crypto-asset under MiCA in the EU or something else depends on the jurisdiction and on the rights it gives. Rules differ from one country to another, and you must consult a specialized lawyer. smart-contract.com does not provide legal advice and does not assess the legality of projects beyond its own review of each request. Developers implement the rules your advisers define; they do not replace them.

How it works on smart-contract.com

1. Describe the project once. The guided request asks for the asset, the target chain, the investor rules, the options and your budget (minimum 1,000 EUR or USD). An AI drafts a specification (the brief) that every vendor quotes against. You can prepare it first with the free brief generator.
2. Review and invitations. The platform reviews the request, then up to 6 matching vendors are invited automatically.
3. Comparable quotes. Every quote follows the same format: price, currency, duration, scope, team, and whether a re-audit is included. You compare them side by side; an AI assistant working for you flags scope gaps and unusual prices. You exchange with each vendor through a dedicated message thread.
4. Independent audit. Once development is contracted, you can request an audit of the same project in one click. The independence rule is enforced in the database: the company that develops your contracts can never be invited to audit them.

The service is free for clients and you commit to nothing until you choose a vendor. Vendors pay a single 10% commission when a contract is declared and confirmed by both parties. Project payments do not go through the platform.

What drives the price

In the public model behind the development cost calculator, real-world asset tokenization is estimated at 25 to 55 developer-days for the contracts and their tests on an EVM chain, before options. The model then adds 15% for project management and quality assurance.

Indicative figures from that model, with a Western European vendor on an EVM chain:

• Contracts only: 29 to 64 developer-days, about 19,000 to 70,000 EUR, 3 to 7 weeks with two developers.
• With an investor front end: 46 to 110 days, about 30,000 to 121,000 EUR.
• With a front end and a back end or indexer: 58 to 138 days, about 38,000 to 152,000 EUR.

The same contracts-only scope with an Eastern European vendor gives about 12,000 to 48,000 EUR. Other factors move the estimate:

• Upgradeable contracts: +3 to 6 days, frequent for long-lived assets.
• Oracle integration for valuations or rates: +3 to 8 days.
• Each additional chain: +3 to 6 days.
• Non-EVM chains: a factor of 1.2 (Move) to 1.3 (other chains) on the whole estimate, 1.25 for Solana.

These are orders of magnitude, not quotes. Budget on top of them the audit and its re-audit (about 20% of the first audit price in the site's audit model, see the audit cost calculator), legal fees, identity and custody providers, and deployment gas. The guide on smart contract development cost details every parameter.

How to choose the vendor

Tokenization rewards vendors who understand both the code and the rules of regulated assets. When comparing quotes, check:

• Experience with permissioned tokens: ask for public repositories or audit reports of transfer-restricted tokens they built.
• How compliance is modelled: where the whitelist lives, how rules are updated, who can change them and with which delays.
• Recovery and forced transfers: how the issuer handles lost keys or court orders without creating an unchecked admin power.
• Test coverage of every transfer rule, including edge cases (expired investor status, lock-up end, partial transfers).
• What is excluded: front end, KYC integration, deployment, support after launch.

Red flags: a quote that treats the token as a standard ERC-20 with a few extra lines, a vendor who offers to settle the legal qualification for you, an admin role held by a single key, or a vendor who proposes to audit its own code. The guide on how to write a smart contract brief helps you state these requirements clearly, and developer and auditor independence explains why the audit must come from another company.

Related blockchains

Most tokenization projects run on EVM chains, where compliant token standards and tooling are mature, but other ecosystems also host regulated assets. Browse vendors by chain on the Ethereum, Polygon and Avalanche pages, where each page also explains what is specific to building on that network. Base, Arbitrum and Solana have their own pages in the directory too, and you can search the whole directory of development vendors by service, blockchain and country.

Next step

Write down the asset, the investor rules and the chain you target, then describe your project to get quotes. The AI turns your answers into a precise brief, the platform invites matching developers, and you compare their quotes in the same format before choosing. When the contracts are ready, request an independent audit on the same project.