AI Development Company in Barcelona
The best AI Development Company in Barcelona, 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.
Barcelona has a large startup community and is a common choice for the tech centres of international companies, helped by the 22@ district, Mobile World Congress and a large international workforce. Its scale-ups and tech hubs mostly buy engineering capacity and specialist skills, and English is the working language in much of the scene.
Barcelona scale-ups often want AI support agents, recommendation features or voice for multilingual customers. We build them with evaluation and a clear handoff to a person, in your repository and your cloud account.
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
Software Development Company
Barcelona's scale-ups and international tech hubs compete for the same senior engineers. A dedicated senior engineer on a fixed monthly cost adds capacity without joining that contest.
What Barcelona 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 enforced by Spain's AEPD, and the Catalan Data Protection Authority (APDCAT) supervises Catalan public bodies and the companies providing services to them. AESIA, based in A Coruña, is Spain's AI Act supervisor, and a national AI governance law was still before parliament in 2026, so check its final form. Spain had not yet finished transposing NIS2 at the time of writing, leaving Royal Decree-law 12/2018 in place for now. DORA has applied to financial entities since January 2025. The EU AI Act has applied in stages since August 2024, with transparency duties from August 2026 and most high-risk obligations 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
Four or more hours of daily overlap across your morning, Central European time, with same-day replies on working days.
We supply Catalan public bodies. Does APDCAT apply to us?
It can, when you process personal data on behalf of a Catalan public body. We build the deployment in your own environment and document data flows and access, so you can show APDCAT or your client's data protection officer exactly where data goes.
Can you work in English with an international team?
Yes. Calls, documentation, code review and tickets are all in English, with four or more hours of daily overlap across your morning, Central European time, and same-day replies. Written updates live in your tracker so the rest of the team can follow progress without extra meetings.
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.