Company lists · Data refreshed September 2026

Top 11 Offshore back office services based in the Netherlands

RevenueBase identified 42 offshore back office services headquartered in the Netherlands as of September 2026 and tracks 475 professional contacts across them, including 37 with verified work emails. Amsterdam is the largest hub.

This list covers offshore back office services 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
42Companies
475Contacts tracked
37Verified emails
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The 11 largest offshore back office services based in the Netherlands

Ranked by team size
Top 11 of 42 offshore back office services 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 offshore back office services: 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 evidenceHeelsum, NetherlandsHQ checked Sep 21, 202611-5032 contacts →

Indirect evidence

“Tolzo is een frisse nieuwkomer in de markt van business support.”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceHoorn, NetherlandsHQ checked Sep 21, 202611-5022 contacts →

Indirect evidence

“De financiële wereld is in beweging.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceRg, NetherlandsHQ checked Sep 21, 20261-1015 contacts →

Partial evidence

“Uw ideale office assistant op afstand.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceDen Haag, NetherlandsHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“Wij geloven dat consultancy- en adviesbureaus alle ruimte verdienen om zich te richten op waar ze écht goed in zijn: hun klanten verder helpen.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 21, 202651-20010 contacts →

Indirect evidence

“Centric is een onafhankelijke serviceprovider met een breed aanbod aan BPO-diensten.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceWaardenburg, NetherlandsHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“Welkom bij Key-Factor | innovatieve office support!”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceEindhoven, NetherlandsHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Ieder bedrijf heeft een specialiteit: vernuftige producten of onmisbare diensten aan hongerige markten voeden.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceArnhem, NetherlandsHQ checked Sep 21, 202651-2005 contacts →

Indirect evidence

“DIRECT Teleservice zorgt professioneel en adequaat voor uw bereikbaarheid, desgewenst dag en nacht.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceOud Gastel, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Foliero Office Support BV ontzorgt bedrijven in het MKB.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

“Ik ben jouw ondersteuner op afstand.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceVeghel, NetherlandsHQ checked Sep 21, 20261-101 contacts →

Indirect evidence

“As an organization you want to improve your results, seize opportunities and further expand your business.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 11 of 42 offshore back office services based in the Netherlands

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Offshore back office services based in the Netherlands at a glance

As of Sep 21, 2026
7.8%Verified-email coverage
11.3Average contacts per company
11-50Median size (employees)
7.1%Largest-city concentration · Amsterdam
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
13
51-200
4
201-500
3
501-1,000
1
1,001-5,000
1
10001+
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 42 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 offshore back office services, 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 “offshore back office services”. 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 offshore back office services), 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 offshore back office services, 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, 37 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 offshore back office services, 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 offshore back office services are there based in the Netherlands?

RevenueBase identified 42 offshore back office services 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?

TOLZO, headquartered in Heelsum, tops this list with the largest team on record.

Which city has the most offshore back office services?

Amsterdam leads with 3 headquartered companies, followed by Alkmaar (2) and Rotterdam (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 37 verified decision-maker contacts tracked across these 42 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.