Company lists · Data refreshed September 2026

Top 25 Patent attorneys based in the Netherlands

RevenueBase identified 52 patent attorneys headquartered in the Netherlands as of September 2026 and tracks 785 professional contacts across them, including 499 with verified work emails. Eindhoven is the largest hub.

This list covers patent attorneys 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 21, 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 21, 2026 86% judged on-target in blind review
52Companies
785Contacts tracked
499Verified emails
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The 25 largest patent attorneys based in the Netherlands

Ranked by team size
Top 25 of 52 patent attorneys based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to patent attorneys: 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 evidenceThe Hague, NetherlandsHQ checked Sep 21, 2026201-500153 contacts →

Indirect evidence

“As one of Europe’s leading intellectual property firms, we believe in the power of innovation to drive progress.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceThe Hague, NetherlandsHQ checked Sep 21, 2026201-500145 contacts →

Indirect evidence

“V.O.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceDen Haag, NetherlandsHQ checked Sep 21, 202651-200136 contacts →

Indirect evidence

“Arnold & Siedsma has a unique and broad expertise protecting intellectual property.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceRijswijk, NetherlandsHQ checked Sep 21, 202651-20077 contacts →

Partial evidence

“EP & C is a law firm specialized in protecting your ideas and commercial assets by patents and designs.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceEindhoven, NetherlandsHQ checked Sep 21, 202651-20075 contacts →

Indirect evidence

“For more than 55 years, we have been committed to innovation and the protection of intellectual property.”

Source: RevenueBase Database · checked Sep 21, 2026
6Strong evidenceAmsterdam, NetherlandsHQ checked Sep 21, 202611-5028 contacts →

Strong evidence

“De Vries & Metman is a leading patent attorney firm in the Netherlands.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceEindhoven, NetherlandsHQ checked Sep 21, 202611-5018 contacts →

Partial evidence

“DeltaPatents is a full-service patent firm with more than 20 years of experience in providing patent services to our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceThe Hague, NetherlandsHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“Vriesendorp & Gaade is your expert for complete and personal services with respect to legally protecting your inventions, designs, trademarks and other intellectual legacy…”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceLeiden, NetherlandsHQ checked Sep 21, 20261-1013 contacts →

Indirect evidence

“Abcor Trademark & design agency”

Source: RevenueBase Database · checked Sep 21, 2026
10Strong evidenceHilversum, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Strong evidence

“DOGIO stands for “De OctrooiGemachtigde bij Innovatie en Ontwikkeling”; the Patent Attorney for Innovation and Development.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceEindhoven, NetherlandsHQ checked Sep 21, 202611-5011 contacts →

Partial evidence

“LIOC Patents & Trademarks is patent, trademark and design firm operating nationally and internationally.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceBreda, NetherlandsHQ checked Sep 21, 20261-108 contacts →

Indirect evidence

“BRIGHT ip lawyers is een nichekantoor gespecialiseerd op het gebied van intellectueel eigendom (IP).”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceDe Bilt, NetherlandsHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“English text below) IP Maison is een full-service octrooibureau gevestigd in Nederland.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceWageningen, NetherlandsHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceRotterdam, NetherlandsHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“IPCO Law takes Intellectual Property (IP) protection to the next level.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceRijswijk, NetherlandsHQ checked Sep 21, 202611-505 contacts →

Indirect evidence

“Hortis Legal (formerly known as: Hortis Holland B.V.) is a legal consultancy in the area of intellectual property law.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceThe Hague, NetherlandsHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“IPEG is a consulting firm of highly experienced intellectual property professionals.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“KLOS c.s.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceApeldoorn, NetherlandsHQ checked Sep 21, 20261-104 contacts →

Partial evidence

Patent Business provides patent services and helps to implement patents as a business tool: Patents for a reason.”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceSteenwijk, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Strong evidence

“Together with a talented team, we at VanBuren Patent Management help patent attorneys and companies with the administrative and formal processes to get and keep their patent and…”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceAlmere, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Octrooibureau NOVOPATENT is a privately held IP Law Firm based in the centre of The Netherlands.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceXs, NetherlandsHQ checked Sep 21, 202611-503 contacts →

Indirect evidence

“Los & Stigter is a well-known brand in the field of intellectual property and its protection.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceAn, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Protecting your intellectual property, invention or technology is crucial to your success.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceOuderkerk Aan De Amstel, NetherlandsHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

“Good Law B.V.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceHaarlem, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 52 patent attorneys based in the Netherlands

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Patent attorneys based in the Netherlands at a glance

As of Sep 21, 2026
63.6%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
7.7%Largest-city concentration · Eindhoven
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
9
51-200
3
201-500
2

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 52 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 patent attorneys, 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 “patent attorneys”. 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 patent attorneys), 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 patent attorneys, 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, 499 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 21, 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 patent attorneys, 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 patent attorneys are there based in the Netherlands?

RevenueBase identified 52 patent attorneys 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?

NLO European Patent And Trademark Attorneys, headquartered in Da, tops this list with the largest team on record.

Which city has the most patent attorneys?

Eindhoven leads with 4 headquartered companies, followed by Ca (2) and Delft (2).

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 499 verified decision-maker contacts tracked across these 52 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 21, 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.