Company lists · Data verified August 2026

Top 25 Email marketing optimization firms based in the Netherlands

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 179 companies tracked

There are 179 email marketing optimization firms headquartered in the Netherlands (RevenueBase, August 2026). RevenueBase tracks 870 professional contacts across them, including 297 with verified work emails and 73 with mobile numbers. Amsterdam is the largest hub.

This list covers email marketing optimization firms headquartered in the Netherlands, 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.

179Companies

870Contacts tracked

297Verified emails

73Mobile numbers

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The 25 largest email marketing optimization firms based in the Netherlands

Ranked by team size

Top 25 of 179 email marketing optimization firms based in the Netherlands, 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	Blauwe Monsters Part Of Conclusion	Haarlem	51-200	45	25
2	Blinker	Da	51-200	43	2
3	Copernica Marketing Software	Amsterdam	11-50	35	21
4	OMG - NL	Aa	11-50	30	11
5	Online Dialogue	Utrecht	11-50	20	2
6	Intermail	Pj	51-200	19	7
7	Gonect Online Marketing	Cn	11-50	18	17
8	Marketingconcurrent	Veenendaal	11-50	18	9
9	Mailmeisters	Amsterdam	11-50	17	14
10	Onyourline	Tj	11-50	17	12
11	Rapidsugar	Vh	11-50	17	11
12	Leadscope	Amsterdam	51-200	17	7
13	Ematters	Vh	11-50	13	9
14	VOS Marketing	Rotterdam	11-50	12	8
15	The Distrikt We're Hiring	Hc	11-50	12	6
16	Game Online Marketing	Tilburg	1-10	12	1
17	Yelflow Personalisatie & Automation Agency	Gb	11-50	11	9
18	Lola Leads BV	Amsterdam	1-10	10	5
19	Smartworkers	Wc	11-50	10	4
20	Stormachtig	Dirksland	11-50	9	6
21	Databay	Amsterdam	11-50	9	3
22	Polaris Growth	Den Haag	1-10	8	4
23	Funnelboost	Utrecht	1-10	6	6
24	Mandad E-Mailmarketing	Amersfoort	1-10	6	5
25	Kotak Marketing	Den Haag	11-50	6	4

Showing 25 of 179 email marketing optimization firms based in the Netherlands

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Email marketing optimization firms based in the Netherlands at a glance

As of Aug 28, 2026

1-10Median size (employees)

AmsterdamLargest hub · 20 HQs

73Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

140

11-50

51-200

Email marketing optimization firms by metro

Metro	Companies
Email marketing optimization firms in Amsterdam	20
Email marketing optimization firms in Utrecht	9
Email marketing optimization firms in Zwolle	6
Email marketing optimization firms in Arnhem	5
Email marketing optimization firms in Rotterdam	5
Email marketing optimization firms in Haarlem	4
Email marketing optimization firms in Groningen	4
Email marketing optimization firms in Eindhoven	4

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 the Netherlands.
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 the Netherlands?

There are 179 email marketing optimization firms headquartered in the Netherlands as of August 2026 (RevenueBase).

What is the largest company on this list?

Blauwe Monsters Part Of Conclusion, headquartered in Haarlem, tops this list with the largest team on record.

Which city has the most email marketing optimization firms?

Amsterdam leads with 20 headquartered companies, followed by Utrecht (9) and Zwolle (6).

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 297 verified decision-maker contacts tracked across these 179 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.