Company lists · Data refreshed September 2026

Top 11 Spacetech companies based in the Netherlands

RevenueBase identified 29 spacetech companies headquartered in the Netherlands as of September 2026 and tracks 1,578 professional contacts across them, including 180 with verified work emails. Delft is the largest hub.

This list covers spacetech companies 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 19, 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 19, 2026 86% judged on-target in blind review
29Companies
1,578Contacts tracked
180Verified emails
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The 11 largest spacetech companies based in the Netherlands

Ranked by team size
Top 11 of 29 spacetech companies based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to spacetech companies: 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 evidenceDelft, NetherlandsHQ checked Sep 19, 202651-200159 contacts →

Indirect evidence

“ISISPACE Group is a vertically integrated small satellite company, focused on providing high value, cost-effective space solutions by making use of the latest innovative…”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceHeerle, NetherlandsHQ checked Sep 19, 202651-20064 contacts →

Indirect evidence

“Our expertise is founded in space propulsion and mobility.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceDelft, NetherlandsHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“Founded in 2013 Hyperion Technologies joined AAC Clyde Space in 2020 and are now known as AAC Hyperion.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“OTB Ventures is a pan-European VC fund specializing in early growth stages, late Seed, and Series A rounds.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceEindhoven, NetherlandsHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“Our goal is to create a satellite to test and increase the Technology Readiness Level (TRL) of several components, with the focus on photonic components, in space.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceGemeente Noordwijk, NetherlandsHQ checked Sep 19, 20261-1014 contacts →

Indirect evidence

“NL Space Campus, the Dutch hub for international space industry NL Space Campus is the meeting place for the (inter)national space sector, with ESA ESTEC and the Galileo Reference…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceDelft, NetherlandsHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“T-Minus Engineering B.V.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceDelft, NetherlandsHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“The mission of the TU Delft Space Institute is to bundle and create expertise on Space for local, regional and global impact on research, education and valorization.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceRosmalen, NetherlandsHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“SEMiLLA IPStar develops a space technology portfolio in collaboration with an exclusive range of industrial customers in the area of biobased circular economy, sustainability…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceDen Haag, NetherlandsHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“RocketBerry is a Dutch high tech consultancy and development company.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceLeiden, NetherlandsHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“Delta-Utec is a Dutch space technology R&D company specialized in satellite (systems) design, systems engineering, simulations and space education.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 11 of 29 spacetech companies based in the Netherlands

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Spacetech companies based in the Netherlands at a glance

As of Sep 19, 2026
11.4%Verified-email coverage
54.4Average contacts per company
11-50Median size (employees)
17.2%Largest-city concentration · Delft
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
8
51-200
4
201-500
2
501-1,000
1

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 29 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 spacetech companies, 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 “spacetech companies”. 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 spacetech companies), 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 spacetech companies, 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, 180 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 19, 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 spacetech companies, 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 spacetech companies are there based in the Netherlands?

RevenueBase identified 29 spacetech companies 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?

Isispace Group, headquartered in Delft, tops this list with the largest team on record.

Which city has the most spacetech companies?

Delft leads with 5 headquartered companies, followed by Noordwijk (5) and Amsterdam (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 180 verified decision-maker contacts tracked across these 29 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 19, 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.