Company lists · Data refreshed September 2026

Top 25 Internal medicine practices based in the Netherlands

RevenueBase identified 271 internal medicine practices headquartered in the Netherlands as of September 2026 and tracks 899 professional contacts across them, including 122 with verified work emails. Amsterdam is the largest hub.

This list covers internal medicine practices headquartered in the Netherlands, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
271Companies
899Contacts tracked
122Verified emails
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The 25 largest internal medicine practices based in the Netherlands

Ranked by team size
Top 25 of 271 internal medicine practices based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to internal medicine practices: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceAlmere, NetherlandsHQ checked Sep 20, 202611-5022 contacts →

Indirect evidence

“Huisartsenpraktijk de Waterlelie biedt persoonlijke en professionele huisartsenzorg op maat, met aandacht voor uw wensen en situatie.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceHulst, NetherlandsHQ checked Sep 20, 202611-5017 contacts →

Partial evidence

“Huisartsenpraktijk Pallion is a medical practice company based out of Blaauwe Hofke 100, HULST, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“Wij huisartsen is een huisartsenpraktijk in Amersfoort Vathorst en Bunschoten.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceHarlingen, NetherlandsHQ checked Sep 20, 202611-5014 contacts →

Partial evidence

“Het Reizende Koffertje is a medical practice company based out of Harlingen, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceJoure, NetherlandsHQ checked Sep 20, 202611-5013 contacts →

Partial evidence

“Maatschap Jouster Huisartsen is a medical practice company based out of It Beaken 2, JOURE, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceUtrecht, NetherlandsHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Gezondheidscentrum Ondiep is een huisartsenpraktijk, gevestigd aan het Boerhaaveplein 100c te Utrecht.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceAmersfoort, NetherlandsHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceBodegraven, NetherlandsHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSchiedam, NetherlandsHQ checked Sep 20, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceOss, NetherlandsHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceDokkum, NetherlandsHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“Huisartsen Centrum Dokkum in Dokkum.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceBreda, NetherlandsHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“Onze Visie We streven naar een persoonlijke en duurzame relatie met onze patiënten.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceHoogeveen, NetherlandsHQ checked Sep 20, 20261-107 contacts →

Partial evidence

“Huisartsenpraktijk de Wielewaal is a medical practice company based out of Hoogeveen, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceHaarlem, NetherlandsHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“De nieuwe huisartsenpraktijk in Haarlem”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceHierden, NetherlandsHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceHazerswoude-dorp, NetherlandsHQ checked Sep 20, 202611-506 contacts →

Partial evidence

“Apotheek Lindehof is a medical practice company based out of Hazerswoude-Dorp, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceRotterdam, NetherlandsHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceDongen, NetherlandsHQ checked Sep 20, 202611-505 contacts →

Partial evidence

“Huisartsenpraktijk Kloosterpad is a medical practice company based out of Kloosterpad 2A, DONGEN, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceKlazienaveen, NetherlandsHQ checked Sep 20, 202611-505 contacts →

Partial evidence

“Huisartsenpraktijk Dokwerk in Klazienaveen is a medical practice company based out of Klazienaveen, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceAlmelo, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceGroningen, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Partial evidence

“Huisartsenpraktijk De Vecht is a medical practice company based out of Vechtstraat 80, GRONINGEN, Netherlands.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceValkenswaard, NetherlandsHQ checked Sep 20, 202611-504 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceDwingeloo, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceBilthoven, NetherlandsHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceDen Haag, NetherlandsHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Hoe gezond u bent, wordt ook bepaald door hoe u zich voelt en kunt omgaan met allerlei dingen in uw leven, zoals familie, uw werk of school, uw financiën en uw normen en waarden.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 271 internal medicine practices based in the Netherlands

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Internal medicine practices based in the Netherlands at a glance

As of Sep 20, 2026
13.6%Verified-email coverage
3.3Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · Amsterdam
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
198
11-50
67

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 271 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among internal medicine practices, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the Netherlands whose own description of what they do matches “internal medicine practices”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names internal medicine practices), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among internal medicine practices, and records with no verified work email. Companies headquartered outside Netherlands are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 122 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names internal medicine practices, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many internal medicine practices are there based in the Netherlands?

RevenueBase identified 271 internal medicine practices headquartered in the Netherlands as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

DE Waterlelie, Huisartsenpraktijk, headquartered in Almere, tops this list with the largest team on record.

Which city has the most internal medicine practices?

Amsterdam leads with 10 headquartered companies, followed by Jn (5) and Almere (4).

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 122 verified decision-maker contacts tracked across these 271 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.