Website development agency in Madrid
Websites designed and built for Madrid companies, from our own Madrid office at Paseo de la Castellana 259C.
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Website development in Madrid, in short
UnFoldMart is a website development agency in Madrid, a city of 3,255,944 people, with our office at P.º de la Castellana 259C, Planta 19, 28046 Madrid. Sites go live on WordPress, Shopify, Webflow or custom React and Next.js, checked against Spanish rules before launch. A first 30-minute call costs nothing; an audit is €3,000 and builds start at €7,000.
Recent website work to compare for Madrid
Wishlink
40% faster page load times
Healic
Healthcare website moved from WordPress to Webflow.
What is Madrid known for?
- Madrid is one of Europe’s largest financial centres, and the largest in Spain.
- It is the leading Spanish-speaking city in terms of webpage creation.
- Its stock market is the third largest in Europe, home to the IBEX 35 index.
- Services make up 86% of the city’s economy.
- 41% of economically active people are university graduates, against 24% for Spain as a whole.
- The city has 17 universities and over 30 research centres.
// City facts: Wikipedia: Madrid
population · 3,255,944 (GeoNames)
region · Community of Madrid, Spain
time zone · Central European Time (CET/CEST)
our office · P.º de la Castellana 259C, Planta 19, 28046 Madrid · 7 km from the city centre
searched for
“diseño web madrid” 4,400, “desarrollo web madrid” 1,300 and “empresa desarrollo web madrid” 90 searches a month, all in Spanish (Semrush, Spain, 28 Oct 2026)
The sectors behind Madrid’s economy
Business and finance
- Banks based in Madrid carry out 72% of the banking activity in Spain.
- Leading employers include Telefónica, Iberia, Prosegur, BBVA, Urbaser, Dragados and FCC.
- The Bank of Spain has been in Madrid since 1782.
Manufacturing and engineering
- Madrid is Spain’s second industrial centre after Barcelona, specialising in high-technology production.
Technology and software
- Growing services include research and development, information technology and technical accountancy.
Airports, ports and trade fairs
- Many of the city’s trade fairs are coordinated by IFEMA, the Trade Fair Institution of Madrid.
- Madrid-Barajas is the fourth largest airport in Europe.
- The high-speed AVE network has brought Seville and Barcelona within 2.5 hours.
Visitors and tourism
- Madrid attracts about 8 million tourists a year, more than Barcelona.
What we build for Madrid companies in these sectors
- Banks, insurers and head offices: service and careers sites in several languages, with the legal pages Spanish rules require.
- Manufacturers and engineering firms: product catalogues, dealer finders and careers pages for skilled staff.
- For tech companies: fast product pages, documentation and campaign pages without developer tickets.
- For travel and transport businesses: booking or quote forms in the languages your customers use.
- Hotels and attractions: fast mobile sites with booking links and local search details.
How a Madrid website project runs
From brief to launch: four steps and 6 to 10 weeks. Workshops run by video or at our office at Paseo de la Castellana 259C, by appointment, in Central European Time (CET/CEST). Every week you get a demo and a link to the staging site.
Which rules must a Madrid website meet?
Every site we launch in Madrid covers these 4:
Consent before cookies
Storing or reading data on a visitor’s device is allowed only after the visitor has consented, having been given clear and complete information about it, in particular about its purposes.
BOE: Ley 34/2002 (LSSI), in Spanish
Business details always one click away
A Spanish business website gives permanent, easy, direct and free access to its name, its address, its e-mail address and, where it applies, its entry in the Mercantile Register.
BOE: Ley 34/2002 (LSSI), in Spanish
Privacy notice on every form
In Spain, as across the EU, anyone filling in a form learns who collects the data, how to contact them, what it is used for and on which legal basis.
Accessible online shops
Spanish e-commerce aimed at consumers has had to be accessible since 28 June 2025 under the European Accessibility Act; microenterprises providing services are exempt.
EUR-Lex: European Accessibility Act (Directive (EU) 2019/882)
From Madrid to our other offices
Our office is at P.º de la Castellana 259C, Planta 19, 28046 Madrid.
Madrid · P.º de la Castellana 259C, Planta 19, 28046 · this page
0 km
Paris office · website development page →
Zürich office · website development page →
London office · website development page →
Working with UnFoldMart in Madrid
office · P.º de la Castellana 259C, Planta 19, 28046 Madrid
time zone · Central European Time (CET/CEST), the same as Madrid
next office · Paris, 1,046 km away (office to office)
site languages · Spanish and English
Madrid website budgets, in euros
Eight answers for Madrid companies
Do you have an office in Madrid?
Yes, at P.º de la Castellana 259C, Planta 19, 28046 Madrid. You can visit us there by appointment, and day-to-day calls run by video in Central European Time (CET/CEST).
Have you built websites for Madrid companies?
Not one we can name here yet. Named website work on our case studies page includes Wishlink, a website revamp with 40% faster page load times, and Healic, a healthcare platform rebuilt on Webflow.
What does a website in Madrid need legally?
Four key rules: consent before cookies; business details always one click away; privacy notice on every form; accessible online shops. They are part of every build, with links to the law in the rules section.
How much does a Madrid website cost?
Prices do not depend on the city and are set in euros. Starter starts at €7,000 and Growth at €18,000; Scale is quoted per project, and a separate audit costs €3,000.
What do Madrid businesses search for when they need a website?
Semrush data from 28 October 2026 shows 4,400 searches a month for “diseño web madrid”, 1,300 for “desarrollo web madrid” and 90 for “empresa desarrollo web madrid”, all in Spanish; English phrases had no measurable volume.
Can our Madrid website be in Spanish and English?
Yes. Spanish is one of the languages our team works in (German, English, French, Polish, Dutch, Italian, Spanish and Portuguese), and we build multilingual sites run from one CMS.
Which Madrid industries do you build for?
We build for business and finance, manufacturing and engineering, technology and software, airports, ports and trade fairs, visitors and tourism. Above, each sector has a short list of the websites we make for it.
Where are your offices nearest to Madrid?
Paris (1,046 km), Zürich (1,241 km) and London (1,257 km): straight-line distances from our Madrid office. UnFoldMart has 10 offices in 10 markets.