Company lists · Data refreshed September 2026

Top 25 Custom software development services based in Spain

Name: Custom software development services based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,092 companies tracked

RevenueBase identified 1,092 custom software development services headquartered in Spain as of September 2026 and tracks 7,441 professional contacts across them, including 1,014 with verified work emails and 87 with mobile numbers. Madrid is the largest hub.

This list covers custom software development services headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

1,092Companies

7,441Contacts tracked

1,014Verified emails

87Mobile numbers

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The 25 largest custom software development services based in Spain

Ranked by team size

Top 25 of 1,092 custom software development services based in Spain, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Atsistemas	Strong evidence	Las Rozas, SpainHQ checked Sep 24, 2026	1,001-5,000	391 contacts →
	Strong evidence “With about 2200 experts atSistemas delivers IT consulting, services and software development which to help organizations to be more efficient and profitable.” Source: RevenueBase Database · checked Sep 24, 2026
2	Metaenlace Sistemas DE Información	Indirect evidence	Murcia, SpainHQ checked Sep 24, 2026	201-500	269 contacts →
	Indirect evidence “Diseñamos soluciones informáticas únicas e inteligentes, flexibles y adaptadas a las necesidades de nuestros clientes, aplicando talento y experiencia.” Source: RevenueBase Database · checked Sep 24, 2026
3	Convotis Iberia	Indirect evidence	Elche, SpainHQ checked Sep 24, 2026	1,001-5,000	209 contacts →
	Indirect evidence “TERALCO GROUP es un referente de desarrollo tecnológico que impulsa la transformación digital de tu empresa aportando soluciones a medida y creando ventajas competitivas, basadas…” Source: RevenueBase Database · checked Sep 24, 2026
4	Trevenque Group	Indirect evidence	Granada, SpainHQ checked Sep 24, 2026	51-200	188 contacts →
	Indirect evidence “Trevenque Sistemas de Información nace en 1992 con el principal reto de convertirse en uno de los primeros grupos empresariales, capaz de ayudar a las empresas a mejorar sus…” Source: RevenueBase Database · checked Sep 24, 2026
5	Bitbox S.L	Partial evidence	Telde, SpainHQ checked Sep 24, 2026	201-500	187 contacts →
	Partial evidence “Estamos especializados en el desarrollo de todo tipo de soluciones de software, desde aplicaciones web, escritorio, smartphones, tablets, capturadores ¡y muchas más!” Source: RevenueBase Database · checked Sep 24, 2026
6	Nano Nino INC	Indirect evidence	Alicante, SpainHQ checked Sep 24, 2026	51-200	166 contacts →
	Indirect evidence “Welcome to Nano Nino Inc.” Source: RevenueBase Database · checked Sep 24, 2026
7	Innocv Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	155 contacts →
	Indirect evidence “INNOCV es una empresa sostenible que se diferencia por poner a las personas en el centro de sus decisiones, mejoramos cada año la calidad de vida de los que trabajamos en ella…” Source: RevenueBase Database · checked Sep 24, 2026
8	Nazaries Intelligenia	Indirect evidence	Granada, SpainHQ checked Sep 24, 2026	51-200	133 contacts →
	Indirect evidence “With over 15 years of experience and a team of 170+ passionate professionals, we are a dynamic and innovative technology partner dedicated to driving transformative change for…” Source: RevenueBase Database · checked Sep 24, 2026
9	Slashmobility	Indirect evidence	Barcelona, SpainHQ checked Sep 24, 2026	51-200	96 contacts →
	Indirect evidence “We are a Mobile Corporate Solutions company founded in Barcelona in 2010, our mission is focused on accelerating the technological digitalization of society through 360º Mobile…” Source: RevenueBase Database · checked Sep 24, 2026
10	Carver Advanced Systems S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 24, 2026	51-200	95 contacts →
	Indirect evidence “Carver Advanced Systems es una empresa con sede en Barcelona, fundada el año 2002 y orientada a la realización de servicios en el ámbito de las Tecnologías de la Información, con…” Source: RevenueBase Database · checked Sep 24, 2026
11	Bluumi SA Create Apps IOS And Android	Indirect evidence	Seville, SpainHQ checked Sep 24, 2026	11-50	56 contacts →
	Indirect evidence “Bluumi is the trademark of Mill Aplications Company SA, it was born in 2010 with the sole objective of being one of the main players in what we call the ERA MOBILE.” Source: RevenueBase Database · checked Sep 24, 2026
12	Itequia	Indirect evidence	Barcelona, SpainHQ checked Sep 24, 2026	51-200	52 contacts →
	Indirect evidence “Our selection of technologies and our methodology allow us to create "code" and "low-code" solutions in less time.” Source: RevenueBase Database · checked Sep 24, 2026
13	Qualitapps	Strong evidence	Barcelona, SpainHQ checked Sep 24, 2026	51-200	50 contacts →
	Strong evidence “At QualitApps, we are experts in software development, such as web and mobile applications, web design and eCommerce.” Source: RevenueBase Database · checked Sep 24, 2026
14	Solbyte Servicios Informáticos	Partial evidence	Málaga, SpainHQ checked Sep 24, 2026	11-50	47 contacts →
	Partial evidence “Somos una empresa tecnológica, formada por un equipo de 30 profesionales y creada en 2008, especializada en el desarrollo de software a medida y en la consultoría tecnológica.” Source: RevenueBase Database · checked Sep 24, 2026
15	Meisters Solutions	Strong evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	46 contacts →
	Strong evidence “Meisters Solutions is a software development and digital services company whose goal is to become part of the infrastructure of its clients.” Source: RevenueBase Database · checked Sep 24, 2026
16	Fdsa Desarrollo	Partial evidence	Palma, SpainHQ checked Sep 24, 2026	51-200	44 contacts →
	Partial evidence “Una empresa mallorquina especializada en desarrollo de software B2B a medida.” Source: RevenueBase Database · checked Sep 24, 2026
17	SFY By Plexus	Indirect evidence	Barcelona, SpainHQ checked Sep 24, 2026	11-50	43 contacts →
	Indirect evidence “Desarrollo de Aplicaciones Iphone Ipad Android, y web.” Source: RevenueBase Database · checked Sep 24, 2026
18	Aditelsa	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	43 contacts →
	Partial evidence “Aditelsa fue fundada en 2002 y a lo largo de los años ha ido consolidando un sólido prestigio en el área de Desarrollos y Proyectos Software, especialmente en Gestores de Bases de…” Source: RevenueBase Database · checked Sep 24, 2026
19	Magnético	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	38 contacts →
	Partial evidence “Magnético es una empresa de desarrollo de software a medida especializada en el desarrollo de aplicaciones móviles y web.” Source: RevenueBase Database · checked Sep 24, 2026
20	Develoop Software	Partial evidence	Barcelona, SpainHQ checked Sep 24, 2026	11-50	38 contacts →
	Partial evidence “Develoop es una empresa de desarrollo e implementación de software con más de 20 años de experiencia.” Source: RevenueBase Database · checked Sep 24, 2026
21	Orienteed	Strong evidence	A Coruña, SpainHQ checked Sep 24, 2026	11-50	38 contacts →
	Strong evidence “Orienteed is one of Europe’s leading software development companies, specializing in digital solutions that drive business growth across various industries.” Source: RevenueBase Database · checked Sep 24, 2026
22	10code Software Design	Indirect evidence	Dos Hermanas, SpainHQ checked Sep 24, 2026	11-50	38 contacts →
	Indirect evidence “Desde 10Code queremos contribuir en el desarrollo de tu empresa ayudándola a conectar con el mundo gracias a desarrollos específicos y adaptados a sus necesidades.” Source: RevenueBase Database · checked Sep 24, 2026
23	Reappciona	Partial evidence	Erandio, SpainHQ checked Sep 24, 2026	11-50	37 contacts →
	Partial evidence “Desarrollo y consultoría de Software.” Source: RevenueBase Database · checked Sep 24, 2026
24	Qaroní	Partial evidence	Culleredo, SpainHQ checked Sep 24, 2026	11-50	37 contacts →
	Partial evidence “Soluciones tecnológicas para empresas que quieren avanzar En Qaroní, somos un equipo multidisciplinario de ingenieros, matemáticos y diseñadores de software comprometidos con…” Source: RevenueBase Database · checked Sep 24, 2026
25	Inforyde	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	11-50	34 contacts →
	Partial evidence “Customised solutions target both large corporations and small businesses, and are optimised using cutting-edge technologies.” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: custom software development services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names custom software development services.
Partial evidence: Its own public description names part of custom software development services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,092 custom software development services based in Spain

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Custom software development services based in Spain at a glance

As of Sep 24, 2026

13.6%Verified-email coverage

1.2%Mobile-number coverage

6.8Average contacts per company

1-10Median size (employees)

17.5%Largest-city concentration · Madrid

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

774

11-50

262

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

1,0760–30

32631–60

1961–90

190–180

2180+

Company record updated

Median 88.0d

00–30

2,42431–60

4,56661–90

3,21490–180

512180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among custom software development services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “custom software development services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names custom software development services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among custom software development services, and records with no verified work email. Companies headquartered outside Spain are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,014 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 24, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Custom software development services by metro

Custom software development services in Madrid191
Custom software development services in Barcelona140
Custom software development services in Valencia54
Custom software development services in Malaga26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names custom software development services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many custom software development services are there based in Spain?

RevenueBase identified 1,092 custom software development services headquartered in Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Atsistemas, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most custom software development services?

Madrid leads with 191 headquartered companies, followed by Barcelona (140) and Valencia (54).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,014 verified decision-maker contacts tracked across these 1,092 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.