Company lists · Data refreshed September 2026
Top 25 Custom software engineering partners based in Barcelona, Spain
RevenueBase identified 105 custom software engineering partners headquartered in Barcelona, Spain as of September 2026 and tracks 542 professional contacts across them, including 81 with verified work emails. Madrid is the largest hub.
This list covers custom software engineering partners headquartered in Barcelona, 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.
The 25 largest custom software engineering partners based in Barcelona, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 50 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 28 contacts → | ||||
Indirect evidence “Internet Services nace en 2001 con un objetivo claro: poner nuestra pasión por el diseño de soluciones tecnológicas eficientes al servicio de empresas e instituciones que buscan.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 18 contacts → | ||||
Strong evidence “Sonomics provides custom enterprise software development for organizations of various sizes across industries such as finance, logistics, healthcare, manufacturing and education.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 16 contacts → | ||||
Indirect evidence “Llevamos desde 1996 ofreciendo soluciones digitales a empresas.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 14 contacts → | ||||
Indirect evidence “3ASIDE és una empresa especialitzada en desenvolupar solucions per cobrir qualsevol necessitat en el camp de les TIC.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 11 contacts → | ||||
Indirect evidence “En EsceniT Digital Development ayudamos a las empresas a optimizar sus procesos, mejorar su productividad y acelerar su crecimiento mediante soluciones tecnológicas adaptadas a…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “Software a medida para empresas.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Partial evidence “Somos una factoría de software que ofrece a sus clientes superar con éxito transformaciones de sistemas, ayudándoles en el diseño, desarrollo e implantación, utilizando las…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Strong evidence “Are you working on a new software idea where a mobile app or a custom software solution is critical to your success?” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5 contacts → | ||||
Partial evidence “Innovación tecnológica para Pymes en desarrollo de Software personalizado y Diseño Digital.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Indirect evidence “Web applications development studio in Barcelona.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “En Nyxidiom creemos en el poder de la tecnología para transformar ideas en realidades.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Indirect evidence “We specialize in web and mobile development and our team of professionals is dedicated to delivering high-quality products and providing ongoing support.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “Creamos soluciones de software e imagen corporativa que transforman la presencia digital de las empresas.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Partial evidence “Exceptia facilita el desarrollo de software personalizado de calidad para una variedad de plataformas e industrias.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “We are Modo, a company focused on building disruptive software solutions.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Indirect evidence “Lluert Serveis Telemàtics es una empresa dedicada a ofrecer soluciones informáticas a la pequeña y mediana empresa.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Partial evidence “We started 5 years ago, as a software development group, and we started this journey sharing one common goal, to make and transform technology, closing it to the people, and we…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Zentense is an information technology and services company based out of Spain.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “Somos una empresa que desarrolla software a medida, aplicaciones para móviles, consultoría TI, soluciones a medida, mantenimiento y soporte informático.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “Welcome to Parallax Solutions!” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “Our experience includes decades of Corporate experience on Software Services in multiple countries and for clients of different sizes.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “At Starkit we develop innovative and personalized software solutions with the best technologies.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Servicios de consultoría tecnológica en la áreas de Sistemas y Desarrollos.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
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 engineering partners. 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 engineering partners.
- Partial evidence
- Its own public description names part of custom software engineering partners, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name custom software engineering partners. 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 105 custom software engineering partners based in Barcelona, Spain
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Custom software engineering partners based in Barcelona, Spain at a glance
As of Sep 24, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Barcelona, so it is reported there. Company counts and contact totals on this page are exact for Barcelona, over 105 companies.
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 engineering partners, 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 Barcelona, Spain whose own description of what they do matches “custom software engineering partners”. 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 engineering partners), 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 engineering partners, and records with no verified work email. Companies headquartered outside Barcelona 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, 81 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 engineering partners by metro in Spain
- Custom software engineering partners in Madrid155
- Custom software engineering partners in Barcelona105
- Custom software engineering partners in Valencia53
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 engineering partners, 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 engineering partners are there based in Barcelona, Spain?
RevenueBase identified 105 custom software engineering partners headquartered in Barcelona, 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?
Carver Advanced Systems S.L, headquartered in Barcelona, tops this list with the largest team on record.
Which city has the most custom software engineering partners?
Madrid leads with 155 headquartered companies, followed by Barcelona (105) and Valencia (53).
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 81 verified decision-maker contacts tracked across these 105 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.
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