AI Development Company in Madrid
The best AI Development Company in Madrid, 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.
Madrid is Spain's corporate and financial centre, home to the headquarters of large banks, telecom operators, utilities, construction and insurance groups, as well as the central government. Much software is bought through large integrators and consultancies, and mid-sized companies increasingly want specialists who can deliver a defined piece of AI or data work underneath those relationships.
In Madrid, AI work frequently sits underneath a larger integrator contract. We take the AI and data layer, such as agents, retrieval and voice, while the integrator keeps the client relationship, with scope and checkpoints agreed in writing.
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
AI Data Analyst
Madrid's large companies and their mid-sized suppliers run on databases that finance and operations teams query constantly through a few overloaded analysts. A read-only analyst inside their own cloud gives them answers quickly without new data leaving their control.
What Madrid 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 in Spain by the AEPD (Agencia Española de Protección de Datos), an active enforcer, alongside the national LOPDGDD. Spain created AESIA, the Spanish Agency for the Supervision of Artificial Intelligence, as its lead AI Act authority, and a draft organic law on the good use and governance of AI was before the Cortes in 2026 and should be checked for its final form. Spain had not yet completed NIS2 transposition at the time of writing, so the earlier Royal Decree-law 12/2018 still applies, and suppliers to the public sector work to the Esquema Nacional de Seguridad. DORA has applied to banks and insurers since January 2025, and most EU AI Act high-risk duties 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
Four or more hours of daily overlap across your morning, Central European time, with same-day replies on working days.
Can you work as a subcontractor to our integrator?
Yes. That is a common arrangement in Madrid. The integrator holds the contract and the client relationship, and we deliver the AI or data component underneath, with acceptance criteria agreed in writing and code delivered into the client's repositories.
What does AESIA mean for an AI project in Spain?
AESIA supervises the EU AI Act in Spain, and the national AI law that will set its full powers was still going through parliament. We classify each system against the AI Act and document its use, so you are ready whichever final form the law takes.
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.