Sign with confidence in ValidSign
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Trusted by thousands of organisations
Fully customisable to your company's design
Data securely stored in the Netherlands
eIDAS compliant
Sign anywhere, on any device

Qualified signing
Once Cleverbase is configured in your ValidSign account you can easily place qualified signatures (QES). This establishes the identity of the signer with the highest level of certainty and makes the digital signature legally valid.
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Sign as a registered accountant
With our professional certificate you sign and certify declarations with legal validity, with your title as RA or AA anchored in the signature. This also confirms that you sign in your professional capacity and meet the requirements for filing and submission.
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Sales
HR
Popular integrations
Easily have your documents signed in a qualified way
Easily sign your documents at a level that is legally valid and future-proof.
Create a new transaction and add the recipients
Set the signing method to Cleverbase for the recipient
Choose how the signature should appear in the document
The signing request is sent to the signer
Let people sign easily using the Cleverbase app
Done: your documents signed in a qualified way
Sign documents with your professional certificate
You can also sign documents using your professional certificate. Once configured, it is simply a matter of selecting the professional certificate after scanning the QR code.
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Trust services at low rates
Qualified trust services don't have to be expensive. With us you know where you stand and pay low rates.
Professional certificates
Sign and certify declarations as RA or AA.
per year
per certificate
excl. VAT¹
Qualified signing
Sign your remaining file documents in a personal capacity, or have others sign.
per person
per year
excl. VAT¹
1Excluding any platform costs
Add our services to your ValidSign account
Activate Cleverbase in ValidSign in two simple steps.
Inform ValidSign
Send an email to support@validsign.eu requesting that Cleverbase be activated in your account.
Set the signing method
Choose Cleverbase as the method for qualified signing.
Configure your professional certificate
Preparation
Download the Cleverbase app
Keep your passport & professional membership number to hand
Receive your certificate
Scan the QR code to start the registration
Need a tailored solution or advice?
Do you have questions, or are you running into something a little different? We are happy to think along with you. Send us a message and we will get in touch with you soon.