Company lists · Data verified August 2026

Top 21 Email marketing optimization firms based in Spain

Name: Email marketing optimization firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 108 companies tracked

There are 108 email marketing optimization firms headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 662 professional contacts across them, including 81 with verified work emails and 14 with mobile numbers. Barcelona is the largest hub.

This list covers email marketing optimization firms 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.

108Companies

662Contacts tracked

81Verified emails

14Mobile numbers

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The 21 largest email marketing optimization firms based in Spain

Ranked by team size

Top 21 of 108 email marketing optimization firms 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	Hustler Marketing	Barcelona	51-200	116	38
2	Digital Response	Barcelona	11-50	45	10
3	boluda.com	Mataro	1-10	25	1
4	Emailing Network	Barcelona	11-50	24	1
5	emredconsulting.com	Madrid	11-50	14	1
6	Mittum Viko Group	Barcelona	11-50	13	2
7	Acumbamail	Madrid	11-50	13	1
8	Doctorsender	Alcoy	11-50	10	2
9	Impresiona Comunicación	Mijas Costa	1-10	6	1
10	STRAT	Madrid	1-10	4	4
11	Easymailing	Alcobendas	1-10	4	2
12	Mediacom Lead	Madrid	1-10	4	1
13	Cinpy Marketing Online	Malaga	1-10	4	1
14	Evitamine Digital S.L.U	Madrid	1-10	3	1
15	Etactica	Barcelona	1-10	3	1
16	Niche Nudge	Barcelona	1-10	2	1
17	Banger Labs	Madrid	1-10	2	1
18	HR Monk	Barcelona	11-50	1	1
19	Email Marketing DE Influencia	Lucena	1-10	1	1
20	Kakeads	Madrid	1-10	1	1
21	Marketing Agency Orenda	Barcelona	1-10	1	1

Showing 21 of 108 email marketing optimization firms based in Spain

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Email marketing optimization firms based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

BarcelonaLargest hub · 32 HQs

14Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Email marketing optimization firms by metro

Metro	Companies
Email marketing optimization firms in Barcelona	32
Email marketing optimization firms in Madrid	31
Email marketing optimization firms in Valencia	5
Email marketing optimization firms in Malaga	2
Email marketing optimization firms in Terrassa	2
Email marketing optimization firms in Alcobendas	2
Email marketing optimization firms in Manilva	1

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 “email marketing optimization firms”, 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 email marketing optimization firms are there based in Spain?

There are 108 email marketing optimization firms headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Hustler Marketing, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most email marketing optimization firms?

Barcelona leads with 32 headquartered companies, followed by Madrid (31) and Valencia (5).

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 81 verified decision-maker contacts tracked across these 108 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.