Privacy policy

Thesio Group B.V., including Thesio B.V. and Thesio Software Factory B.V., located at De Holle Bilt 25, 3732HM De Bilt, is responsible for the processing of personal data as described in this privacy statement.

Contact details

Adres:  De Holle Bilt 25, 3732HMde Bilt
Telefoonnummer: 088 22 23 800

Personal data that we process

Thesio processes your personal data because you make use of our services and/or because you provide us with these data yourself. Below you will find an overview of the personal data we process:

  • Name and surname
  • Gender
  • Date of birth
  • Address details
  • Telephone number
  • E-mail address
  • Company data
  • Other data that you actively provide in correspondence and by telephone, for example your CV.

We only process the data that we need in order to carry out our services.

Special and/or sensitive personal data that we process

In some cases, Thesio processes the following special and/or sensitive personal data of you:

  • Citizen service number (BSN)
  • Legitimation

Our website and/or service has no intention of collecting data on website visitors who are under 16 years of age. Unless they have permission from their parents or guardian. However, we cannot verify whether a visitor is over 16 years of age. We therefore recommend that parents be involved in the online activities of their children, in order to prevent data being collected on children without parental permission. If you are convinced that we have collected personal data on a minor without such consent, please contact us at and we will delete this information.

For what purpose and on the basis of which basis do we process personal data?

Thesio processes your personal data for the following purposes:

  • Identification
  • Contact about possible interesting vacancies at Thesio
  • Contact by telephone or e-mail if this is necessary for us to be able to carry out our services
  • Informing about changes to our services
  • Possible company data in order to be able to give an offer or for the execution of our services

Thesio only processes your personal data if you have given your consent. This applies to all your data. We will always ask you if we can save your data. We will then use your details to inform you about suitable vacancies or to inform you about our services.

Automated decision-making

Thesio does not make decisions on the basis of automated processing that could have (significant) consequences for people. These decisions are made by computer programmes or systems, without a human being (for example an employee of Thesio) being involved.

How long we keep personal data

Thesio will not store your personal data any longer than is strictly necessary to realise the goals for which your data are collected. We use the following retention periods for the following (categories) of personal data:

Personal details

There is no fixed retention period for your personal data. In consultation with you, we will keep your details and CV in our administration in order to be able to contact you at a later date about suitable vacancies at Thesio.

If you indicate that you no longer wish to be in our system, we will delete your data.

Address details

We use your address data for the same purposes as your other data. With this information we can approach you for suitable projects. If we know where you live, we can check whether the location of an assignment is not too far away, for example. This information is stored in our database together with your other personal details. Every year, we will ask whether your address details are still up-to-date. If you indicate that you no longer wish to be in our database, we will remove this information.

Contact details

Thesio gebruikt je contactgegevens om contact met je op te kunnen nemen, zowel telefonisch als per e-mail, om je passende vacatures bij Thesio voor te leggen. Ook deze gegevens slaan we van je op en zullen wij verwijderen wanneer je aangeeft niet meer in onze database voor te willen komen.

Special personal data

Thesio needs your BSN and proof of identity and processes these at the moment you join us.

Sharing of personal data with third parties

Thesio does not sell your data to third parties and only provides them if this is necessary for the execution of our contract with you or to meet a legal obligation. We have an agreement with companies that process your data on our behalf, to ensure the same level of security and confidentiality of your data. Thesio will remain responsible for this processing.

We only share your personal data with third parties if you have given us your consent to do so.

Cookies, or similar technologies, that we use

Thesio only uses technical and functional cookies. And analytical cookies that do not infringe on your privacy. A cookie is a small text file that is stored on your computer, tablet or smartphone when you first visit this website. The cookies we use are necessary for the technical functioning of the website and your ease of use. They ensure that the website works properly and remember, for example, your preferences. They also enable us to optimise our website. You can unsubscribe from cookies by configuring your internet browser in such a way that it no longer saves any cookies. In addition, you can delete all information previously stored using your browser settings.

Cookies gebruiken wij onder andere voor Google Analytics, waarmee wij o.a. de volgende zaken opslaan in cookies:

  • IP-adres;
  • technische kenmerken zoals de browser die je gebruikt (zoals Chrome, Safari, Internet Explorer of Firefox) en de resolutie van jouw computerscherm;
  • vanaf welke pagina je op de Thesio website bent gekomen;
  • wanneer en hoe lang je de Thesio website bezoekt of gebruikt;
  • of je gebruik maakt van functionaliteiten van een Thesio website;
  • welke pagina’s je bezoekt op de Thesio website;

Onderstaand het volledige overzicht van tooling die gebruikt wordt en waarvoor cookies worden opgeslagen:

  • Google Analytics (GA4) - Voor website statistieken en metingen die eerder zijn beschreven in dit artikel.
  • Leadinfo - Voor tracking van websitebezoek en het aanbieden van gepersonaliseerde CTA's voor bedrijven.
  • LinkedIn - Voor het meten van de effectiviteit van onze LinkedIn campagnes en het optimaliseren van onze advertenties.
  • Microsoft Clarity - Voor tracking van bezoekers en klikgedrag.
  • Datadog - Voor o.a. monitoring van onze website.

Viewing, modifying or deleting data

You have the right to view, correct or delete your personal data. In addition, you have the right to withdraw your consent for data processing or to object to the processing of your personal data by Thesio and you have the right to data portability. This means that you can request us to send the personal data we have about you in a computer file to you or another organisation named by you. You can send a request for inspection, correction, deletion, data modification or request to withdraw your permission or objection to the processing of your personal data to

We will respond to your request as quickly as possible, but within four weeks. Thesio would also like to point out that you have the option of submitting a complaint to the national supervisory authority, the Autoriteit Persoonsgegevens. You can do so via this link.

How we secure personal data

Thesio takes the protection of your data seriously and takes appropriate measures to prevent abuse, loss, unauthorised access, unwanted disclosure and unauthorised changes. If you have the impression that your data is not properly secured or there are indications of misuse, please contact us via

The mandatory cookie notice, because we too use cookies. Although we do so to a very limited extent. When 'Accepting' we temporarily place some cookies for improving and analyzing website usage. Want to know more? View our Privacy Policy.