AI Development Company in Lisbon
The best AI Development Company in Lisbon, at the best available price.
Most of what gets sold here as AI development is a team of five with one person who has shipped, and a bill that reflects the other four. This is the opposite arrangement: the engineer who scopes it is the engineer who builds it, the price is fixed before anything starts, and you pay nothing until a checkpoint is delivered and you accept it.
Lisbon has grown into a base for international founders, remote teams and the engineering centres of European companies, with Web Summit, the city's Unicorn Factory and a strong engineering school feeding the scene. Many companies here are young and distributed, with founders who relocated from elsewhere in Europe or beyond, and they buy pragmatically: small, fixed engagements that prove themselves before anything larger.
Lisbon startups often want an AI feature at the centre of the product, such as a support agent, a document workflow or a voice line. We build it with evaluation and logging, in your own cloud account, and hand over the code.
What you get
- One senior engineer end to end: the person on your first call architects it, writes it and hands it over
- LLM features, retrieval over your own documents, agents that call real tools, and voice where it earns its place
- Deployed in your own cloud account in a regional data centre, or on your own hardware where residency demands it
- Fixed price and fixed scope agreed in writing before work starts, invoiced per accepted checkpoint
- Code and infrastructure in your repository and your accounts, written to make us replaceable on purpose
Nothing payable upfront. You hold every dollar until a checkpoint is delivered and accepted, and thirty days of defect correction is included. Final scope and price are settled on a call before any work begins.
Invoiced in USD or EUR, payable by Wise or bank transfer.
Request a callback
You speak to the engineer who does the work. No sales rep, no deck.
Who builds here
Fractional CTO Services
Lisbon is full of relocated founders running distributed teams who have reached the point where no one owns the technical direction. A fractional CTO gives them that, part time and month to month, which suits companies still proving their model.
What Lisbon companies build with us
Get it built at $0.
That is not a discount. It is when you pay. The work is split into checkpoints with acceptance criteria written down before anything starts, and each checkpoint is invoiced only after you have seen it and accepted it. No deposit.
- $0 to start
- You hold every dollar until a checkpoint is delivered and you accept it. No approval, no invoice.
- Fixed cost, unlimited features
- Or hire the team outright: one fixed monthly cost, unlimited feature development, any stack.
- The engineer takes your call
- The person on your first call is the one who architects and writes it. No account managers, no bench time.
A US agency quotes $50,000 to $150,000 for the same build and asks for 40 to 50% of it before a line is written. Account managers, project managers, sales commission and bench time. None of it appears in your product.
Three stages, nothing hidden.
Twenty-minute call
You talk to the engineer who will build it. We scope the problem, and if this is the wrong fit for you, you get told so on that call rather than three weeks into a proposal.
Fixed proposal in 48 hours
Fixed price, fixed timeline, defined deliverables, in writing. No hourly billing, no open-ended scope, and no change-request business model.
Checkpoints until it ships
Working software at each checkpoint, with acceptance criteria agreed before that checkpoint starts and an invoice only after you accept it. Direct access throughout, not a ticket queue.
What actually applies here.
Regulation and data
GDPR is supervised in Portugal by the CNPD (Comissão Nacional de Proteção de Dados). NIS2 is transposed by Decree-Law 125/2025, the new cybersecurity legal regime, in force since 3 April 2026, with the National Cybersecurity Centre (CNCS) at its centre. Portugal has named ANACOM as its lead authority for the EU AI Act, working with the CNPD, Banco de Portugal and the CMVM in their own fields, and has not passed a separate national AI law. DORA has applied to financial entities since January 2025. EU AI Act transparency duties apply from August 2026, and most high-risk obligations are now due from December 2027.
Contracting and payment
You contract with an individual consultant based in India. Invoices in EUR or USD, paid by Wise or bank transfer. Your accountant handles an overseas supplier in the usual way, and any documentation they need is provided before access is granted.
Working hours
Your whole morning overlaps with my afternoon, so calls fit before lunch and replies come the same day.
How do the hours work with Lisbon?
Your whole morning overlaps with my afternoon, so calls fit before lunch in Lisbon and replies come the same day. Work done in the late afternoon is written up so it is waiting for you the next morning.
Can our data stay in Portugal or the EU?
Yes. We deploy into an EU region of your own cloud account, or onto servers you control in Portugal, and the model, serving layer and logs stay there. Nothing is routed through an external AI provider unless you choose that.
Why would we use an overseas engineer rather than a local integrator?
Often you should use both. An integrator holding the prime contract and the local relationship, with a specialist doing the AI and data layer underneath, is a common and sensible structure here. What you should not do is pay integrator rates for engineering that one person is actually doing.
Can the system run entirely inside our own infrastructure?
Yes, and in this region that is frequently the requirement rather than the preference. Model serving on your own hardware or in your own cloud account in a regional data centre, with no outbound calls, up to fully air-gapped.
Who owns the code?
You do, entirely. It ships into your repository on your own cloud accounts, documented so your team or your next hire can carry it without us, and all our access is removed at handover with written confirmation.
AI Product Development
LLM apps, agents, RAG and MCP tooling, architected by the builder of AccioMatrix.