Company lists · Data verified August 2026

Top 20 B2B SEO agencies based in Barcelona, Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 76 companies tracked

There are 76 B2B SEO agencies headquartered in Barcelona, Spain (RevenueBase, August 2026). RevenueBase tracks 456 professional contacts across them, including 65 with verified work emails and 14 with mobile numbers. Madrid is the largest hub.

This list covers B2B SEO agencies headquartered in Barcelona, 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.

76Companies

456Contacts tracked

65Verified emails

14Mobile numbers

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The 20 largest B2B SEO agencies based in Barcelona, Spain

Ranked by team size

Top 20 of 76 B2B SEO agencies based in Barcelona, 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	Bigseo	Barcelona	51-200	110	17
2	Keyweo	Barcelona	11-50	39	10
3	Nothingad Consultoría DE Marketing B2B	Barcelona	11-50	15	3
4	SEO Coaching	Barcelona	11-50	15	2
5	Estudio34	Barcelona	11-50	13	7
6	Gracia Media WEB	Barcelona	11-50	9	3
7	Adrenalina Marketing Online	Barcelona	11-50	8	3
8	Orchid BOX	Barcelona	11-50	8	2
9	AM Consultores	Barcelona	1-10	6	3
10	Jf-Digital Agencia DE Marketing Digital	Barcelona	1-10	6	3
11	Vandelay Digital Marketing Agency	Barcelona	11-50	5	1
12	Iseolator	Barcelona	1-10	5	1
13	Orbitalia SEO Agency In Barcelona	Barcelona	1-10	4	2
14	OK Otto Agency	Barcelona	1-10	4	1
15	Clickcrows	Barcelona	1-10	3	2
16	Hema Arts & Solutions	Barcelona	1-10	2	1
17	Artilet	Barcelona	1-10	1	1
18	Altoclick	Barcelona	1-10	1	1
19	Atipicdigital	Barcelona	1-10	1	1
20	Kannon Media	Barcelona	1-10	1	1

Showing 20 of 76 B2B SEO agencies based in Barcelona, Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 65 reachable decision-makers.

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B2B SEO agencies based in Barcelona, Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 115 HQs

14Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

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 Barcelona, 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; 1 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 Barcelona, Spain?

There are 76 B2B SEO agencies headquartered in Barcelona, Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Bigseo, headquartered in Barcelona, 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 65 verified decision-maker contacts tracked across these 76 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.