Company lists · Data verified August 2026

Top 25 Enterprise telecom consulting companies based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 500 companies tracked

There are 500 enterprise telecom consulting companies headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 7,523 professional contacts across them, including 841 with verified work emails and 91 with mobile numbers. Madrid is the largest hub.

This list covers enterprise telecom consulting 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.

500Companies

7,523Contacts tracked

841Verified emails

91Mobile numbers

Unlock all 500 companies Free account · no credit card · 2 minutes

The 25 largest enterprise telecom consulting companies based in Spain

Ranked by team size

Top 25 of 500 enterprise telecom consulting 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	Zelenza	Getafe	1,001-5,000	1,123	115
2	Nunsys	Puerto De Sagunto Valencia	1,001-5,000	738	156
3	NAE	Madrid	501-1,000	504	56
4	SIRT	Zaragoza	201-500	441	78
5	Airon Group	Madrid	201-500	162	18
6	Experience IT Solutions	Boecillo	201-500	153	7
7	Aldaba	A Coruna	51-200	148	14
8	Smartel España	Camas	51-200	110	14
9	Einzelnet	Barcelona	51-200	107	17
10	MDTEL	Madrid	51-200	91	1
11	BE Beyond	Mairena Del Aljarafe	51-200	89	3
12	B2com	Valencia	51-200	72	11
13	Businessgo	Madrid	51-200	61	9
14	Contecnow	Barcelona	51-200	59	14
15	Divigroup	Madrid	51-200	51	15
16	ISP Grup	Les Franqueses Del Valles	201-500	50	4
17	Gotor Comunicaciones	Zaragoza	51-200	44	7
18	Acuntia Axians	Madrid	501-1,000	38	6
19	Autronic Comunicaciones	Badajoz	51-200	34	2
20	Zertia Telecomunicaciones S.L	Madrid	51-200	29	8
21	Serval Networks	Alcobendas	51-200	28	3
22	TRC	Madrid	51-200	25	7
23	Leadmarket	Pozuelo De Alarcon	51-200	23	5
24	Sercaman	Toledo	51-200	23	3
25	ISC	n/a	51-200	22	3

Showing 25 of 500 enterprise telecom consulting companies based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 841 reachable decision-makers.

Free account · no credit card

See all 500 companies

Enterprise telecom consulting companies based in Spain at a glance

As of Aug 28, 2026

11-50Median size (employees)

MadridLargest hub · 104 HQs

91Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

245

11-50

191

51-200

201-500

501-1,000

1,001-5,000

Enterprise telecom consulting companies by metro

Metro	Companies
Enterprise telecom consulting companies in Madrid	104
Enterprise telecom consulting companies in Barcelona	49
Enterprise telecom consulting companies in Valencia	15
Enterprise telecom consulting companies in Malaga	10
Enterprise telecom consulting companies in Tarragona	9
Enterprise telecom consulting companies in Murcia	8
Enterprise telecom consulting companies in Zaragoza	7

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 telecom consulting 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 telecom consulting companies are there based in Spain?

There are 500 enterprise telecom consulting companies headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Zelenza, headquartered in Getafe, tops this list with the largest team on record.

Which city has the most enterprise telecom consulting companies?

Madrid leads with 104 headquartered companies, followed by Barcelona (49) and Valencia (15).

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 841 verified decision-maker contacts tracked across these 500 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.

Ready to reach these companies? Verified emails and direct dials for all 500 enterprise telecom consulting companies based in Spain. Start with a free account, no credit card.

Get the full list

Related lists

Enterprise telecom consulting companies by geography

Browse the directory

Browse: Companies home · All Spain lists · All Enterprise telecom consulting companies lists · New lists

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.