Company lists · Data refreshed September 2026

Top 25 Business process outsourcing service providers based in the Netherlands

RevenueBase identified 76 business process outsourcing service providers headquartered in the Netherlands as of September 2026 and tracks 2,028 professional contacts across them, including 587 with verified work emails. Amsterdam is the largest hub.

This list covers business process outsourcing service providers 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 14, 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 14, 2026 86% judged on-target in blind review
76Companies
2,028Contacts tracked
587Verified emails
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The 25 largest business process outsourcing service providers based in the Netherlands

Ranked by team size
Top 25 of 76 business process outsourcing service providers based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to business process outsourcing service providers: 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 evidenceRotterdam, NetherlandsHQ checked Sep 14, 202610001+1,052 contacts →

Indirect evidence

“Wij zijn Yource.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 14, 202651-20083 contacts →

Indirect evidence

“a•s WORKS is een administratieve dienstverlener die klanten ontzorgt en helpt bij de bedrijfsvoering.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceNijmegen, NetherlandsHQ checked Sep 14, 2026201-50083 contacts →

Partial evidence

“Proud Experts verzorgt met ruim 250 professionals klantinteractie-processen voor banken, verzekeraars en de top van het financiële intermediair.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceArnhem, NetherlandsHQ checked Sep 14, 20261,001-5,00059 contacts →

Indirect evidence

“Wilt u moeiteloos meebewegen met aanpassingen in de markt, uw organisatie of wet- en regelgeving?”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceTilburg, NetherlandsHQ checked Sep 14, 202651-20056 contacts →

Indirect evidence

“Bij Repay bieden we HR-oplossingen afgestemd op jouw behoeften.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceAlmere, NetherlandsHQ checked Sep 14, 2026201-50035 contacts →

Indirect evidence

“Bij Inspire weten we hoe belangrijk goed georganiseerd klantcontact is voor het succes van uw organisatie.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceHeelsum, NetherlandsHQ checked Sep 14, 202611-5032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceHoofddorp, NetherlandsHQ checked Sep 14, 202611-5024 contacts →

Indirect evidence

“Dé allround specialist op het gebied van HR, Salaris en Financiële dienstverlening.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceAlmelo, NetherlandsHQ checked Sep 14, 202611-5019 contacts →

Indirect evidence

“So Toff beheert jouw HR- en salarisadministratie terwijl jij werkgever blijft.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceEindhoven, NetherlandsHQ checked Sep 14, 202651-20017 contacts →

Indirect evidence

“How do you get the most out of your marketing and sales resources?”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceRg, NetherlandsHQ checked Sep 14, 20261-1015 contacts →

Indirect evidence

“Uw ideale office assistant op afstand.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceMaastricht, NetherlandsHQ checked Sep 14, 202651-20014 contacts →

Indirect evidence

“Klantenservice uitbesteden of klantenservice verbeteren?”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceZoetermeer, NetherlandsHQ checked Sep 14, 202651-20010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceWaardenburg, NetherlandsHQ checked Sep 14, 202611-5010 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceTerneuzen, NetherlandsHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

“In Zaken | Loon & HRM gelooft in de kracht van gelukkige medewerkers en blije klanten.”

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceEindhoven, NetherlandsHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidenceOtterlo, NetherlandsHQ checked Sep 14, 20261-104 contacts →

Indirect evidence

“WIJ ZIJN ANDERZ Dat zijn we omdat we ervan overtuigd zijn dat ondernemen Anderz kan.”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceLelystad, NetherlandsHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“Integrio is een jong bedrijf dat andere bedrijven operationeel ondersteunt in de breedste zin van het woord.”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidenceAnna Paulowna, NetherlandsHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Welkom bij Aar Finance, jouw betrouwbare partner voor uitgebreide HR en salaris ondersteuning.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceTilburg, NetherlandsHQ checked Sep 14, 2026201-5002 contacts →

Indirect evidence

“We hebben dan ook alle facetten op het gebied voor het outsourcen van verkoop en/of marketing ondergebracht onder één holding.”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceEindhoven, NetherlandsHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

“Wat doen wij?”

Source: RevenueBase Database · checked Sep 14, 2026
22Partial evidenceRotterdam, NetherlandsHQ checked Sep 14, 20261-102 contacts →

Partial evidence

“ClientMind helps in improving and simplifying your business processes at a higher quality and at lower costs.”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceApeldoorn, NetherlandsHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceEnkhuizen, NetherlandsHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Met meer dan 20 jaar ervaring in de ICT en het automatiseren/optimaliseren van bedrijfsprocessen helpen we je graag met jouw volgende IT stap.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“We're the company that gives you a high-quality, low-cost alternative to in-house staff.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 76 business process outsourcing service providers based in the Netherlands

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Business process outsourcing service providers based in the Netherlands at a glance

As of Sep 14, 2026
28.9%Verified-email coverage
26.7Average contacts per company
1-10Median size (employees)
7.9%Largest-city concentration · Amsterdam
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
18
51-200
8
201-500
7
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 76 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 business process outsourcing service providers, 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 “business process outsourcing service providers”. 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 business process outsourcing service providers), 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 business process outsourcing service providers, 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, 587 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 14, 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 business process outsourcing service providers, 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 business process outsourcing service providers are there based in the Netherlands?

RevenueBase identified 76 business process outsourcing service providers 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?

Yource Group, headquartered in Rotterdam, tops this list with the largest team on record.

Which city has the most business process outsourcing service providers?

Amsterdam leads with 6 headquartered companies, followed by Rotterdam (4) and Eindhoven (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 587 verified decision-maker contacts tracked across these 76 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 14, 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.