Company lists · Data refreshed September 2026

Top 17 Ip portfolio management firms based in the Netherlands

RevenueBase identified 31 ip portfolio management firms headquartered in the Netherlands as of September 2026 and tracks 882 professional contacts across them, including 568 with verified work emails. Eindhoven is the largest hub.

This list covers ip portfolio management firms 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
31Companies
882Contacts tracked
568Verified emails
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The 17 largest ip portfolio management firms based in the Netherlands

Ranked by team size
Top 17 of 31 ip portfolio management firms 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 ip portfolio management firms: 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 20, 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 20, 2026
2Indirect evidenceThe Hague, NetherlandsHQ checked Sep 20, 2026201-500145 contacts →

Indirect evidence

“V.O.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceDen Haag, NetherlandsHQ checked Sep 20, 202651-200136 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceRijswijk, NetherlandsHQ checked Sep 20, 202651-20077 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceEindhoven, NetherlandsHQ checked Sep 20, 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 20, 2026
6Indirect evidenceThe Hague, NetherlandsHQ checked Sep 20, 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 20, 2026
7Indirect evidenceHilversum, NetherlandsHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceEindhoven, NetherlandsHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceWageningen, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceThe Hague, NetherlandsHQ checked Sep 20, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSteenwijk, NetherlandsHQ checked Sep 20, 20261-103 contacts →

Partial 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 20, 2026
12Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

“Markedly is a boutique firm specializing in the protection of intellectual property.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceAlmere, NetherlandsHQ checked Sep 20, 20261-103 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceXs, NetherlandsHQ checked Sep 20, 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 20, 2026
15Indirect evidenceAn, NetherlandsHQ checked Sep 20, 20261-103 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceThe Hague, NetherlandsHQ checked Sep 20, 20261-102 contacts →

Partial evidence

“Unlock your business potential with Sybaris IP.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceWageningen, NetherlandsHQ checked Sep 20, 20261-101 contacts →

Partial evidence

“We provide Intellectual Property (IP) services, in particular patent advice.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 17 of 31 ip portfolio management firms based in the Netherlands

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Ip portfolio management firms based in the Netherlands at a glance

As of Sep 20, 2026
64.4%Verified-email coverage
28.5Average contacts per company
1-10Median size (employees)
16.1%Largest-city concentration · Eindhoven
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
5
51-200
4
201-500
4

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 31 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 ip portfolio management firms, 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 “ip portfolio management firms”. 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 ip portfolio management firms), 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 ip portfolio management firms, 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, 568 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 ip portfolio management firms, 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 ip portfolio management firms are there based in the Netherlands?

RevenueBase identified 31 ip portfolio management firms 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 ip portfolio management firms?

Eindhoven leads with 5 headquartered companies, followed by Amsterdam (3) and The Hague (3).

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 568 verified decision-maker contacts tracked across these 31 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.