Company lists · Data verified August 2026

Top 25 Enterprise IT infrastructure companies based in Spain

Name: Enterprise IT infrastructure companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 625 companies tracked

There are 625 enterprise IT infrastructure companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 29,849 professional contacts across them, including 8,353 with verified work emails and 4,248 with mobile numbers. Madrid is the largest hub.

This list covers enterprise IT infrastructure companies headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

625Companies

29,849Contacts tracked

8,353Verified emails

4,248Mobile numbers

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The 25 largest enterprise IT infrastructure companies based in Spain

Ranked by team size

Top 25 of 625 enterprise IT infrastructure companies based in Spain, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Insight	Alcobendas	10001+	13,105	6,929
2	Fractalia	Madrid	1,001-5,000	1,526	1
3	Logicalis Spain	Madrid	501-1,000	544	1
4	Grupo Solutia	Madrid	501-1,000	464	57
5	SIRT	Zaragoza	201-500	441	78
6	ABAST	Palma	501-1,000	386	113
7	Nextret	Barcelona	201-500	236	3
8	EDISA	San Cibrao Das Vinas	201-500	227	46
9	Fibratel	Sevilla	201-500	214	60
10	Tigloo	Zaragoza	201-500	162	45
11	AELIS	Madrid	51-200	153	29
12	Powernet	A Coruna	51-200	149	21
13	Omega Peripherals	Erandio	51-200	146	31
14	Inet Smart ITC	Cornella De Llobregat	201-500	139	6
15	Ipm, A Ricoh Company	Sant Cugat Del Valles	201-500	138	42
16	EDGED	Madrid	51-200	134	21
17	Sistel	Alicante	51-200	130	1
18	Einzelnet	Barcelona	51-200	107	17
19	Factum	Madrid	51-200	99	15
20	Quark Unlimited Engineering	Madrid	51-200	88	4
21	Myclouddoor	Madrid	201-500	86	22
22	Serban Group - Europa	Bilbao	51-200	82	11
23	Prosol	Madrid	51-200	73	10
24	Italtel Spain	Ciudad Real	201-500	68	17
25	Claranet Spain	Hospitalet De Llobregat	1,001-5,000	66	23

Showing 25 of 625 enterprise IT infrastructure companies based in Spain

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Enterprise IT infrastructure companies based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 129 HQs

4,248Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

332

11-50

202

51-200

201-500

501-1,000

1,001-5,000

10001+

Enterprise IT infrastructure companies by metro

Metro	Companies
Enterprise IT infrastructure companies in Madrid	129
Enterprise IT infrastructure companies in Barcelona	64
Enterprise IT infrastructure companies in Valencia	16
Enterprise IT infrastructure companies in Sevilla	14
Enterprise IT infrastructure companies in Malaga	12
Enterprise IT infrastructure companies in Zaragoza	9
Enterprise IT infrastructure companies in Sant Cugat Del Valles	9

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “enterprise IT infrastructure companies”, with match quality audited by blind human judging, and headquartered in Spain.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many enterprise IT infrastructure companies are there based in Spain?

There are 625 enterprise IT infrastructure companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Insight, headquartered in Alcobendas, tops this list with the largest team on record.

Which city has the most enterprise IT infrastructure companies?

Madrid leads with 129 headquartered companies, followed by Barcelona (64) and Valencia (16).

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 8,353 verified decision-maker contacts tracked across these 625 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.