“One of the pioneering firms in web3 solutions, digital assets and tokenization, recognized for its innovation and solid reputation across Spain and Latin America.”
Jorge CorredorLawyer, Rincón Cuéllar & Asociados
We are your blockchain development company in Portugal
We build blockchain products for companies in Portugal with our in-house team, designing each project around MiCA and the way supervision is split between Banco de Portugal and the CMVM.
Tell us about your project
Blockchain development in Portugal, from idea to production
We take your use case to a product you can launch, operate and extend. One team designs the architecture, writes the contracts and connects them to your systems.
Tell us what you want to buildThe Portuguese framework, from the architecture
We separate how the token is classified from the permission held by whoever provides the service. Banco de Portugal handles CASP authorisation and the CMVM reviews conduct and client protection, which shapes custody, permissions and records.
Contracts ready for an audit
We write your business logic with tests and peer review. Every contract is documented and prepared for an external audit, then deployed in stages before it runs in production.
In English or Spanish, on your schedule
You work in English, or in Spanish if your team prefers, directly with the people who design and write the code. Meetings fit your working day, and the rest is followed through shared documentation and a stable technical channel.
A foundation built to grow
We hand over documented code with deployments and monitoring planned. Your team gets a technical foundation for maintaining the product and adding new features.
Services
Blockchain development services in Portugal
We cover the full Web3 product lifecycle: idea, MVP, mainnet deployment, audits and maintenance.
Connect your operations
Represent assets and rights
Use cases
Blockchain use cases in Portugal
Cases that build on controls Portugal already applies, from the Port wine seal to the first sale of fish at auction.
Port wine seal
Every bottle is sold with the guarantee seal issued by the IVDP; the record links each seal to the approved wine batch and its bottling date.
Blockchain for Agribusiness
Cork traceability
From cork oak to stopper factory, in a sector that exports over 90% of its output: every cork lot linked to its estate and its processing batch.
Blockchain for Supply Chain & Logistics
Auctioned fish
Every lot auctioned at Docapesca, which runs the public first-sale service for fish, linked to its vessel and followed through to the fishmonger.
Blockchain for Agribusiness
Collective solar self-consumption
Neighbours and businesses sharing the output of a renewable installation, with the split recorded and the EGAC under Decree-Law 15/2022 dealing with the grid operator.
Blockchain for Energy & Sustainability
Technologies we build blockchain with in Portugal
Our stack covers every layer of your product: smart contracts, blockchain networks and integration with your systems. We use it to build, test and deploy software tailored to your business.
- Solidity
The smart contract language for verifiable rules on EVM networks.
- Rust
Performance and memory safety for contracts, nodes and Web3 tooling.
- Ethereum
EVM contracts, tokens and final settlement on an open Proof of Stake network.
- Hardhat
An environment to compile, test and deploy contracts on EVM networks from Node.
- Foundry
Solidity tests, invariant fuzzing and command-line tooling for EVM networks.
- Chainlink
Oracles for external data, randomness and cross-chain messaging for contracts.
- Polygon
Polygon PoS: EVM contracts secured by its own validators, with low fees.
- Solana
Programs, accounts and parallel execution on a high-throughput layer 1.
- OpenZeppelin
Audited Solidity contracts for tokens, access control and upgradeable systems.
European Union: MiCA / BdP · CMVM
Blockchain regulatory framework in Portugal
In Portugal, MiCA applies directly and Law 69/2025 divides supervision: Banco de Portugal receives CASP authorisation applications and has powers over ART and EMT tokens, while the CMVM covers offers of other crypto-assets, market abuse and conduct. A token that qualifies as a financial instrument falls outside MiCA and is assessed under securities rules. Since 1 July 2026, the former virtual asset registration no longer stands in for MiCA authorisation.
See blockchain regulation in PortugalPortuguese framework
Milestones enabling blockchain in Portugal
The dates that set how a crypto-asset project is authorised in Portugal today. Each milestone links to its source.
See the regulation guide for PortugalGeneral MiCA application
General application of the EU regulation begins, distinct from subsequent national implementing measures.
ESMA · MiCAPublication of Laws 69/2025 and 70/2025
National measures on MiCA and on anti-money laundering and transfer information are published.
Portugal · Law 69/2025End of former registration transition
The Article 30 maximum period for continuing activities under former registration expires.
Portugal · Law 69/2025
Reviews in Portugal
What do our clients think of Metlabs?
“We structured the tokenization of real estate projects with them, and I value the team's ability to understand our corporate needs and genuinely solve them.”
Joan MejíaManager, GLOBYNE
“They advised us on the feasibility of tokenizing real estate assets in Uruguay with direct, cordial treatment. A professional team, responsive and always available.”
Álvaro Silva SantamaríaCEO, Sp Inmuebles
“Great professionals at structuring tokenized projects, with technical command and attention to detail that inspire full confidence at every stage of the work.”
Francisco BetancourtVerified Google review
“As a blockchain lawyer, I value their experience and professionalism in consulting and executing tokenization projects. Technology partners you can fully trust.”
Vanessa RivasBlockchain lawyer, El Salvador
“Great professionals, very attentive to their clients and always mindful of every detail. Working with their team has been a genuine pleasure from start to finish.”
CriptorentVerified Google review
“A very professional yet approachable company that empathizes with your doubts and needs. Highly recommended for entrepreneurs with a tokenization project.”
Javier EspasaTokenization entrepreneur
“Exceptional in every sense. From legal support I value their rigor and transparency: working with Metlabs means professionalism, innovation and security.”
Pedro A. Agúndez MéndezGoogle Local Guide
“Excellent service across blockchain development, asset tokenization and consulting. A very professional team that I recommend wholeheartedly, without reservation.”
José Luis DíazVerified Google review
“I have worked with them on several projects and they are very professional. A guarantee that everything turns out perfectly. Without a doubt, 100% recommended.”
Ignacio Fernández JiménezVerified Google review
“One of the pioneering firms in web3 solutions, digital assets and tokenization, recognized for its innovation and solid reputation across Spain and Latin America.”
Jorge CorredorLawyer, Rincón Cuéllar & Asociados
“Great professionals at structuring tokenized projects, with technical command and attention to detail that inspire full confidence at every stage of the work.”
Francisco BetancourtVerified Google review
“A very professional yet approachable company that empathizes with your doubts and needs. Highly recommended for entrepreneurs with a tokenization project.”
Javier EspasaTokenization entrepreneur
“I have worked with them on several projects and they are very professional. A guarantee that everything turns out perfectly. Without a doubt, 100% recommended.”
Ignacio Fernández JiménezVerified Google review
“We structured the tokenization of real estate projects with them, and I value the team's ability to understand our corporate needs and genuinely solve them.”
Joan MejíaManager, GLOBYNE
“As a blockchain lawyer, I value their experience and professionalism in consulting and executing tokenization projects. Technology partners you can fully trust.”
Vanessa RivasBlockchain lawyer, El Salvador
“Exceptional in every sense. From legal support I value their rigor and transparency: working with Metlabs means professionalism, innovation and security.”
Pedro A. Agúndez MéndezGoogle Local Guide
“They advised us on the feasibility of tokenizing real estate assets in Uruguay with direct, cordial treatment. A professional team, responsive and always available.”
Álvaro Silva SantamaríaCEO, Sp Inmuebles
“Great professionals, very attentive to their clients and always mindful of every detail. Working with their team has been a genuine pleasure from start to finish.”
CriptorentVerified Google review
“Excellent service across blockchain development, asset tokenization and consulting. A very professional team that I recommend wholeheartedly, without reservation.”
José Luis DíazVerified Google review
Security
Security in blockchain development in Portugal
Every delivery goes through the same checklist before it reaches mainnet. What changes between projects is the depth of each control, because an MVP does not carry the same risk as a contract that holds third-party funds.
Before mainnet
- Roles and permissions defined for every critical function
- Unit and invariant tests, and fuzzing on the logic that moves value
- Static analysis and peer review of every change
- Multisig and timelock on administration when the risk justifies it
- Custody and rotation of the deployment keys agreed
- External audit when the value at risk requires it
We work with leading audit firms
FAQ
Frequently asked questions about blockchain development in Portugal
What we are asked before a project starts.
Talk to our teamWhich regulations apply to a blockchain project in Portugal?
MiCA governs crypto-asset issuance and services, and Law 69/2025 sets out how Banco de Portugal and the CMVM take part. Providing those services requires CASP authorisation or, for certain financial entities, the Article 60 MiCA notification. AML obligations updated by Law 70/2025 also apply and, if the token is a financial instrument, so do securities rules. We analyse the fit of your case before writing any code.
Do you work with both startups and established companies?
Yes. With startups we work from MVP validation to a product ready to show in a funding round; with established companies, on tokenization, traceability and digital identity projects with demanding compliance requirements. Either way, smart contracts go through tests and review before they reach mainnet.
How do you work with Portuguese companies?
In English or Spanish, in direct contact with the people who design and build the product. Meetings adapt to your working day. Shared documentation, written decisions and a stable technical channel keep the work organised.
How long does blockchain development take?
It depends on product complexity, how many systems need integrating and the level of review required. Before development we set the scope, dependencies and deliverables of each phase, so you can decide what reaches production first and what waits for a second iteration. From the start, the plan separates an MVP from a complete architecture.
Which blockchain network is right for my project?
The one your product requirements call for, not the one in fashion. For EVM projects we compare Ethereum, Polygon, Arbitrum or Base on finality, costs, tooling, interoperability, custody and compliance, and we consider non-EVM networks when they fit better. The recommendation covers contracts, indexing, wallets and operations, and takes into account who the product is for.
Let's build the rails for your project in Portugal
Tell us about your case and we'll propose architecture, timeline and budget within a week.
Where we work in Portugal
We work remotely with teams throughout the country, and on site where the project calls for it.
Territorial coverage
- Aveiro
- Beja
- Braga
- Bragança
- Castelo Branco
- Coimbra
- Évora
- Faro
- Guarda
- Leiria
- Lisbon
- Portalegre
- Porto
- Santarém
- Setúbal
- Viana do Castelo
- Vila Real
- Viseu
- Azores
- Madeira
Blog
Articles on regulation and blockchain development
MiFID II and tokenization: classification, services and limits
MiFID II and tokens: financial instrument classification, investment services and the distinction from MiCA before designing an issuance.
What are the differences between security tokens and utility tokens?
How to distinguish financial rights from service access, what legal classification examines and why a token’s name does not determine its regulation.
How to build a blockchain project: decisions and stages
From the problem to deployment: architecture, network choice, tokens, testing and operations for a blockchain project with a verifiable scope.
Where we are
Blockchain development in Portugal and worldwide
Metlabs Offices
Av. García Sabell, 1, Edificio Proa 15009 A Coruña, Spain
We are also your blockchain development company in
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