Company lists · Data verified August 2026

Top 22 B2B SEO agencies based in Madrid, Spain

Name: B2B SEO agencies based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 115 companies tracked

There are 115 B2B SEO agencies headquartered in Madrid, Spain (RevenueBase, August 2026). RevenueBase tracks 462 professional contacts across them, including 88 with verified work emails and 12 with mobile numbers. Madrid is the largest hub.

This list covers B2B SEO agencies headquartered in Madrid, 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.

115Companies

462Contacts tracked

88Verified emails

12Mobile numbers

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The 22 largest B2B SEO agencies based in Madrid, Spain

Ranked by team size

Top 22 of 115 B2B SEO agencies based in Madrid, 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	internet.republica	Madrid	51-200	73	32
2	Liten Lemon	Madrid	1-10	21	3
3	Connection H2h Human 2 Human	Madrid	11-50	19	7
4	Seoleverage	Madrid	11-50	9	5
5	TU Posicionamiento WEB	Madrid	11-50	9	2
6	Optimizaclick	Madrid	11-50	9	1
7	bocetos.com	Madrid	11-50	9	1
8	internet4e.com	Madrid	1-10	6	2
9	PEACK	Madrid	1-10	5	3
10	Entra EN LA RED	Madrid	1-10	4	1
11	Davilac	Madrid	1-10	3	3
12	Kala Agency	Madrid	11-50	3	2
13	Econsultoria	Madrid	1-10	3	2
14	Jrizo Agencia SEO	Madrid	1-10	3	1
15	Digitaltroupe	Madrid	1-10	3	1
16	Seoinhouse	Madrid	1-10	2	1
17	1magina Real Estate And Brand Coach Digital Marketing Experts	Madrid	11-50	1	1
18	Olea Comunicación	Madrid	1-10	1	1
19	Jbmoreno	Madrid	1-10	1	1
20	Kreitz	Madrid	1-10	1	1
21	Creativate Agencia Marketing Digital	Madrid	1-10	1	1
22	Emeka Online	Madrid	1-10	1	1

Showing 22 of 115 B2B SEO agencies based in Madrid, Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 88 reachable decision-makers.

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B2B SEO agencies based in Madrid, Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 115 HQs

12Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

B2B SEO agencies by metro in Spain

Metro	Companies
B2B SEO agencies in Madrid	115
B2B SEO agencies in Barcelona	76
B2B SEO agencies in Valencia	31
B2B SEO agencies in Alicante	15
B2B SEO agencies in Malaga	14
B2B SEO agencies in Sevilla	12
B2B SEO agencies in Bilbao	11

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 “B2B SEO agencies”, with match quality audited by blind human judging, and headquartered in Madrid, 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; 2 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 B2B SEO agencies are there based in Madrid, Spain?

There are 115 B2B SEO agencies headquartered in Madrid, Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most B2B SEO agencies?

Madrid leads with 115 headquartered companies, followed by Barcelona (76) and Valencia (31).

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 88 verified decision-maker contacts tracked across these 115 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.