Company lists · Data refreshed August 2026

Top 23 Cloud native operations companies based in Spain

Name: Cloud native operations companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 51 companies tracked

RevenueBase identified 51 cloud native operations companies headquartered in Spain as of August 2026 and tracks 444 professional contacts across them, including 93 with verified work emails and 8 with mobile numbers. Madrid is the largest hub.

This list covers cloud native operations companies 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

51Companies

444Contacts tracked

93Verified emails

8Mobile numbers

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The 23 largest cloud native operations companies based in Spain

Ranked by team size

Top 23 of 51 cloud native operations companies based in Spain, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to cloud native operations companies: 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	Realnaut	Partial evidence	Madrid, Spain	51-200	64 contacts →
	Partial evidence “At Realnaut, we excel in delivering cutting-edge cloud services and tailored solutions designed specifically to meet your business needs.” Source: RevenueBase Database · checked Aug 31, 2026
2	Opennebula Systems	Partial evidence	Madrid, Spain	51-200	51 contacts →
	Partial evidence “OpenNebula Systems is the open source company behind OpenNebula, supporting its community and providing SLA-based support, consulting, and managed cloud services to corporate…” Source: RevenueBase Database · checked Aug 31, 2026
3	Niubits Technologies	Partial evidence	Palma De Mallorca, Spain	11-50	29 contacts →
	Partial evidence “Empresa especializada en Kubernetes, Cloud y Observabilidad” Source: RevenueBase Database · checked Aug 31, 2026
4	Cartagon	Partial evidence	Madrid, Spain	11-50	28 contacts →
	Partial evidence “Cartagon is the leading provider of Managed Cloud Services in Spain, specialized in hybrid cloud solutions.” Source: RevenueBase Database · checked Aug 31, 2026
5	Ausum Cloud	Partial evidence	Barcelona, Spain	11-50	27 contacts →
	Partial evidence “En Ausum Cloud, ofrecemos nuestra colaboración con un modelo de acompañamiento de 360 grados.” Source: RevenueBase Database · checked Aug 31, 2026
6	Pentasoft	Partial evidence	Madrid, Spain	11-50	26 contacts →
	Partial evidence “Cloud Thinking Serverless · Microservices · IoT · AWS” Source: RevenueBase Database · checked Aug 31, 2026
7	Kumorisystems	Partial evidence	Valencia, Spain	51-200	17 contacts →
	Partial evidence “Kumori PaaS, an Operating System for the Cloud The core of Kumori PaaS is Kubernetes, giving it an incredibly powerful engine to run reliable and scalable applications.” Source: RevenueBase Database · checked Aug 31, 2026
8	Kenmei Technologies	Strong evidence	Paterna, Spain	51-200	16 contacts →
	Strong evidence “Kenmei offers cloud-native solutions that enhance efficiency by automating network processes and ensuring an optimal customer experience.” Source: RevenueBase Database · checked Aug 31, 2026
9	Santa Clara Tech	Indirect evidence	Las Rozas De Madrid, Spain	11-50	15 contacts →
	Indirect evidence “Santa Clara is focused on providing services to those companies willing to keep their data in their own Data Center(s) to avoid dependency on third parties.” Source: RevenueBase Database · checked Aug 31, 2026
10	Prefapp Cloud Consulting S.L	Partial evidence	Santiago De Compostela, Spain	1-10	13 contacts →
	Partial evidence “Prefapp somos una firma de consultoría especializada en proveedores cloud (AWS y Azure); containerización y orquestación (Docker y Kubernetes); administración de sistemas y…” Source: RevenueBase Database · checked Aug 31, 2026
11	Resizes	Indirect evidence	Gijon, Spain	11-50	12 contacts →
	Indirect evidence “Resizes is the technology core that orchestrates complete technology stacks: applications, AI agents, APIs, databases, MCPs, and every component a business runs on.” Source: RevenueBase Database · checked Aug 31, 2026
12	Aindeep Technology Solutions	Strong evidence	Bilbao, Spain	11-50	10 contacts →
	Strong evidence “Technology consulting firm with experience in cloud environments, specialized in the transformation, implementation and operation of applications and vertical solutions for…” Source: RevenueBase Database · checked Aug 31, 2026
13	Bluekiri	Partial evidence	Palma, Spain	51-200	8 contacts →
	Partial evidence “We design, deploy and manage 24/7 the cloud architecture that best suits your business needs.” Source: RevenueBase Database · checked Aug 31, 2026
14	Todo EN Cloud	Partial evidence	Madrid, Spain	11-50	6 contacts →
	Partial evidence “Los clientes valoran a Todo en Cloud como uno de los principales actores en el escenario de la Computación en la Nube Estan especializados en Arquitecturas distribuidas con…” Source: RevenueBase Database · checked Aug 31, 2026
15	Edgecontinuum	Partial evidence	Vigo, Spain	1-10	6 contacts →
	Partial evidence “At edgeContinuum, we bridge the gap between public cloud agility and private infrastructure control.” Source: RevenueBase Database · checked Aug 31, 2026
16	Essi Projects	Strong evidence	Spain	11-50	5 contacts →
	Strong evidence “Essi Projects, ahora Grupo Castilla, es la unidad especializada en DevOps y diseño, arquitectura e implantación de servicios cloud-native.” Source: RevenueBase Database · checked Aug 31, 2026
17	Jackson Cloud	Partial evidence	Las Rozas De Madrid, Spain	1-10	5 contacts →
	Partial evidence “Jackson Cloud es una empresa líder en consultoría y servicios de TI especializada en un viaje exitoso a la nube.” Source: RevenueBase Database · checked Aug 31, 2026
18	Neterial	Indirect evidence	Barcelona, Spain	1-10	4 contacts →
	Indirect evidence “At Neterial, we're rebuilding the developer workflow with a simple premise: you shouldn't have to trade ownership for convenience.” Source: RevenueBase Database · checked Aug 31, 2026
19	Teralevel	Partial evidence	San Sebastian De Los Reyes, Spain	11-50	3 contacts →
	Partial evidence “We design, develop and manage infrastructure (cloud or local), and help the development and/or IT teams on continuous integration and continuous delivery processes.” Source: RevenueBase Database · checked Aug 31, 2026
20	Linajex	Partial evidence	Alicante Espana, Spain	1-10	2 contacts →
	Partial evidence “Certified specialists with extensive experience in Cloud architecture (AWS, Azure, GCP), DevOps, Containers (Kubernetes, Docker) and IT Compliance info@linajex.com” Source: RevenueBase Database · checked Aug 31, 2026
21	Napptive	Strong evidence	Madrid, Spain	1-10	2 contacts →
	Strong evidence “Napptive was born with the idea of simplifying the way developers build, share and run cloud-native apps.” Source: RevenueBase Database · checked Aug 31, 2026
22	Deckrun	Indirect evidence	Murcia, Spain	1-10	1 contacts →
	Indirect evidence “Seamless Deployments for any business.” Source: RevenueBase Database · checked Aug 31, 2026
23	Quadrabee S.L	Indirect evidence	Barcelona, Spain	1-10	1 contacts →
	Indirect evidence “Quadrabee provides consultancy, optimisation, migration planning, capacity planning, monitoring and infrastructure management to startups and companies as they migrate to Amazon…” Source: RevenueBase Database · checked Aug 31, 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: cloud native operations companies. 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 cloud native operations companies.
Partial evidence: Its own public description names part of cloud native operations companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cloud native operations companies. 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 23 of 51 cloud native operations companies based in Spain

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Cloud native operations companies based in Spain at a glance

As of Aug 31, 2026

20.9%Verified-email coverage

1.8%Mobile-number coverage

8.7Average contacts per company

1-10Median size (employees)

29.4%Largest-city concentration · Madrid

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 cloud native operations companies, 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 “cloud native operations companies”. 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 cloud native operations companies), 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 cloud native operations companies, 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, 93 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 August 31, 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 cloud native operations companies, 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 cloud native operations companies are there based in Spain?

RevenueBase identified 51 cloud native operations companies headquartered in Spain as of August 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?

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

Which city has the most cloud native operations companies?

Madrid leads with 15 headquartered companies, followed by Barcelona (7) and Valencia (2).

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 93 verified decision-maker contacts tracked across these 51 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.