Spain
Madrid.
Our registered office is at Calle Electrónica 6, 28027 Madrid. From Madrid and Amsterdam we build websites, products and AI for companies across Spain, in Spanish, English and Dutch.
In detail · Madrid
How we work here.
For example: 100 / 100 / 100 Lighthouse mobile: accessibility, best practices, SEO. KD.tech
The registered office
Polargate's registered office is Calle Electrónica 6, 28027 Madrid. The legal entity is POLARGATE, S.L., CIF B24895005, so a Spanish company gets a Spanish invoice in euros with Spanish VAT and none of the paperwork of contracting abroad. Pedro Ciordia, founder and CTO, leads the architecture and the code review on every project. We work from Madrid and Amsterdam, in Spanish, English and Dutch.
What Spanish companies ask us for
- BUILD: corporate websites, e-commerce, internal portals, mobile apps, AI features and integrations. Recent Spanish work includes a trilingual golf club site with an official handicap calculator, a premium tableware shop rebuilt off WooCommerce, and an operations platform for a hotel refurbishment company.
- GROW: SEO and AI-search visibility, content, paid media and analytics. Our Spanish sites are pre-rendered as static HTML, so ChatGPT, Perplexity, Claude and Google read real text instead of an empty JavaScript shell.
- CARE: monthly maintenance and evolution through a multi-tenant ServiceDesk, with an hour balance the client can see and an autonomous fix agent that handles routine work.
The Spanish details that decide whether a project works
Building for Spain is not building in English and translating afterwards. What we have already solved here:
- Card payments through a Spanish bank. We integrated an Abanca virtual terminal operated by Cecabank (CECA protocol, not Redsys or Stripe): amount re-read server-side, signature verification, anti-replay operation numbers, idempotent notifications and a documented refund procedure. The first real charge went through in August 2026.
- Shipping the way Spanish carriers actually charge. Weight by zone for Madrid, peninsula and Baleares, Correos for light parcels, preparation fees, VAT applied per line, free-shipping thresholds that do not quietly give away margin, and Canarias, Ceuta and Melilla handled explicitly.
- Regional regulation before marketing. For a rural property in the Sierra de Guadarrama we mapped what the holiday-rental rules of the Comunidad de Madrid allow before writing a single line of commercial copy, then built the strategy around products that could legally be sold.
- Spanish that reads as Spanish. European Spanish written natively, ES and EN versions (French too when needed) with localised URLs per language, reciprocal hreflang and a canonical per language. No machine translation bolted on top.
- Sector data, not filler. A course handicap calculator built on official federation slope and course rating data, with WHS rounding and Spanish decimal notation, is the level of specificity we work at.
Sectors we serve from Madrid
Hotels, resorts and hospitality technology. Travel and tourism, including employee portals and digital identity. Premium direct-to-consumer retail. Industrial and B2B technology with bilingual documentation, careers pages and customer ticketing. Back-office software for construction and hotel refurbishment. Leisure venues, nightlife and festivals.
How a company in Madrid or the rest of Spain starts
Every engagement starts with a paid, fixed-price Discovery Sprint. You get the scope, the data model, the risks and a real quote, and the document is yours whether or not you continue with us. The quote is private and comes in writing. The Care retainer scales with the surface being maintained.
Working with us in practice
Kickoff, discovery workshops and delivery reviews can happen in person, in Madrid or at your office. If you run an international operation with a Spanish arm, we can run the project in your language and deliver the Spanish side from here. Everything we build lives in infrastructure you own: your Supabase project, your GitHub repository, your Vercel account, your domain and your DNS. If you stop working with us, nothing stops working.
Location
Our registered office is in Madrid.
POLARGATE, S.L., the company that signs your contracts and invoices, is registered here. We work from Madrid and Amsterdam.
- What it is
- Registered office
- What we do
- Websites, products and AI for companies across Spain.
- Languages
- Spanish · English
- Address
- Calle Electrónica 6, 28027 MadridGet directions
Other locations
- 01We work from hereAmsterdamWebsites and portals in Dutch.
- 02MarketDublinClient portals and product.
- 03MarketHamburgOnline shops and B2B portals.
- 04MarketMunichSoftware for industrial companies.
- 05MarketNew YorkCRM and technical direction.
- 06MarketMiamiHotels in Florida and the Caribbean.
- 07MarketLos AngelesDevelopment and platforms.
- 08MarketSanto DomingoHotels and companies in the Dominican Republic.
For example: 11 modules delivered in Phase 1. Elite Smart Build
Work
A selection of our work.
Real projects, with the figures we measured. Open one to see how it was done.

KD.tech
Semiconductors and automotive optical connectivityOne platform for a semiconductor company: site, ServiceDesk and admin portal on a single codebase
327 bilingual pages in the sitemap accepted by Search Console
BuildGrowCare

Elite Smart Build
Construction and hotel refurbishmentA custom operating system for Elite Smart Build
23 Postgres tables with row-level security forced
BuildCare

Malacca Tables
Premium tableware and home linen, direct to consumer retailA homeware shop rebuilt so AI search can read the catalogue
65 routes pregenerated at build time with their own metadata and JSON-LD
BuildGrowCare

Hotel Talavera
Hotels and hospitalityA bilingual hotel website that crawlers and AI assistants can read
27 published FAQs with FAQPage schema
BuildGrowCare
For example: 105,212 characters of body text readable by AI crawlers across 65 URLs, up from zero. Malacca Tables
FAQ
What people ask us.
Where is Polargate based in Madrid?
How much does a website cost with a Madrid studio like Polargate?
Do I need to be in Madrid to work with Polargate?
Can Polargate invoice a Spanish company with VAT?
What kind of Spanish companies do you work with?
Can you take over a website another agency built?
Can you build a site in Spanish, English and Dutch?
For example: 16 indexable URLs, Spanish and English. Hotel Talavera
Get started
Tell us what you want to build.
Websites, apps, custom systems and AI for companies that need them in production in weeks. Fill in the form or book a 30 minute call: a senior engineer answers within 48 business hours with a first take on scope, timeline and price.
First step
Two weeks to close scope, architecture and price before anything is built.
No price list. You get a private quote, in writing, after a short call.
Then, to build, always at a fixed price
Not ready yet?
- AI visibility auditOne-off, fixed price.