Company lists · Data refreshed September 2026
Top 24 Api integration consulting firms based in Spain
RevenueBase identified 195 api integration consulting firms headquartered in Spain as of September 2026 and tracks 2,816 professional contacts across them, including 496 with verified work emails. Madrid is the largest hub.
This list covers api integration consulting firms 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 27, 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 24 largest api integration consulting firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 267 contacts → | ||||
Partial evidence “Innova-tsn is a Spanish multinational consulting firm founded 21 years ago, which has grown to position itself as one of the undisputed industry leaders in the design and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 149 contacts → | ||||
Indirect evidence “Digital agility is the difference between businesses that thrive and those trying to survive.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 147 contacts → | ||||
Indirect evidence “Somos una consultoría tecnológica especializada en transformación digital, desarrollo de aplicaciones móviles, desarrollo web, big data y smart cities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 132 contacts → | ||||
Indirect evidence “En fhios somos mucho más que una consultora tecnológica, lo somos T-O-D-O: creamos experiencias digitales que transforman a través del marketing digital, la ciberseguridad y el…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 83 contacts → | ||||
Indirect evidence “En TIMIA ayudamos a las empresas a aplicar inteligencia artificial y los datos de forma realista y con impacto, no por que esté de moda.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 71 contacts → | ||||
Indirect evidence “Somos una consultora de tecnología de la información que transforma negocios mediante soluciones innovadoras y personalizadas.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 contacts → | ||||
Partial evidence “Startup specialiced in APIs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 64 contacts → | ||||
Indirect evidence “Tu tecnología impulsa tu negocio o lo frena?” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 61 contacts → | ||||
Indirect evidence “7Experts o una nueva manera de hacer consultoría En 2019, redefinimos un nuevo modelo de consultoría para ofrecer un enfoque fresco y efectivo con dos pilares fundamentales: el…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 55 contacts → | ||||
Indirect evidence “Somos un equipo dinámico y flexible especializado en consultoría de negocio, tecnológica, organización y optimización de procesos.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 32 contacts → | ||||
Partial evidence “En Constellation Consulting Ibérica, nos dedicamos a optimizar los procesos empresariales en todas las etapas de tus ventas y operaciones.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 contacts → | ||||
Partial evidence “S&M Services is a global IT consulting company, with headquarters in Bilbao and offices in Madrid, Barcelona, Vitoria-Gasteiz, Santiago de Chile, Buenos Aires and Bogotá.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 27 contacts → | ||||
Indirect evidence “At OOPTIMO, we connect technology and humans in the digital age.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Partial evidence “Macaque Consulting es una empresa emergente especializada en consultoría IT, con un enfoque especial en la inteligencia artificial.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Partial evidence “Mediacore Solutions is a cutting-edge digital consultancy specializing in integrating advanced technologies such as artificial intelligence to deliver measurable business outcomes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 contacts → | ||||
Indirect evidence “evoluxia es una consultora tecnológica boutique especializada en IA, dato, integraciones, desarrollo a medida y desarrollo de producto para transformar procesos y aumentar la…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 17 contacts → | ||||
Partial evidence “Blue Telecom Consulting becomes LAUDE Throughout all these years, we have built our leadership by relying on a principle of excellence, which we apply to everything we do.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Indirect evidence “Somos una consultora tecnológica líder en soluciones basadas en Inteligencia Artificial, Business Intelligence, Analítica Avanzada y RPA.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Indirect evidence “Somos una consultoría tecnológica creada en el año 2010 en Santiago de Compostela.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 16 contacts → | ||||
Indirect evidence “Certiorem, es una empresa con más de 15 años de experiencia, dedicada a la consultoría y servicios en las tecnologías de la información, más concretamente en la integración y…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Indirect evidence “Crata AI is a Barcelona-based applied AI consultancy that builds custom AI solutions, agents and automations to help mid-to-large companies reduce manual work and improve…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Indirect evidence “En Zeeker Solutions somos expertos en integración e implementación de servicios digitales.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Buscamos la solución tecnológica que se adapta a ti.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 contacts → | ||||
Indirect evidence “Venture studio building AI-Native companies.” Source: RevenueBase Database · checked Sep 27, 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: api integration consulting firms. 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 api integration consulting firms.
- Partial evidence
- Its own public description names part of api integration consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name api integration consulting firms. 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 24 of 195 api integration consulting firms based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 496 reachable decision-makers.
Free signup · no credit card
Api integration consulting firms based in Spain at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 195 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 api integration consulting firms, 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 “api integration consulting firms”. 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 api integration consulting firms), 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 api integration consulting firms, 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, 496 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 27, 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.
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 api integration consulting firms, 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 api integration consulting firms are there based in Spain?
RevenueBase identified 195 api integration consulting firms 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?
Innova-Tsn, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most api integration consulting firms?
Madrid leads with 54 headquartered companies, followed by Barcelona (30) and Malaga (7).
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 496 verified decision-maker contacts tracked across these 195 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 195 api integration consulting firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Api integration consulting firms by geography
- Api integration consulting firms based in Toronto, Canada
- Api integration consulting firms based in Vancouver, Canada
- Api integration consulting firms based in Ahmedabad, India
- Api integration consulting firms based in Bangalore, India
- Api integration consulting firms based in Bengaluru, India
- Api integration consulting firms based in Chennai, India
- Api integration consulting firms based in Gurgaon, India
- Api integration consulting firms based in Hyderabad, India
- Api integration consulting firms based in Mumbai, India
- Api integration consulting firms based in New Delhi, India
- Api integration consulting firms based in Noida, India
- Api integration consulting firms based in Pune, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Api integration consulting firms based in Toronto, Canada
- Api integration consulting firms based in Vancouver, Canada
- Api integration consulting firms based in Ahmedabad, India
- Api integration consulting firms based in Bangalore, India
- Api integration consulting firms based in Bengaluru, India
- Api integration consulting firms based in Chennai, India