ZertES-compliant qualified and advanced electronic signature

Repetitive e-signing solution for Switzerland

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Over 100 partners in Europe and Switzerland trust our e-signature solution.

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Product description

White-label remote e-signature service by Swisscom Trust Services

White-label remote e-signature service

The ZertEs-compliant qualified and advanced electronic signatures from Swisscom Trust Services streamline digital business processes and reduce paper, scanning, printing, and postage costs. Additionally, they enhance flexibility in digital contract conclusions and save time on administrative tasks.

Broad portfolio of identification and approval methods

Broad portfolio of identification and approval methods

To utilize the ZertES-compliant electronic signature, users undergo a one-time identity verification process and register a signature approval method. Following this, they can electronically sign as often as needed within a specified timeframe (repetitive e-signing). Swisscom Trust Services offers a comprehensive portfolio of audited identity verification and signature approval methods through its trust platform. As a Swisscom Trust Services software partner, you can tailor the appropriate identification procedures and preferred approval methods for your customers based on the specific use case, applicable legal jurisdiction (EU or Switzerland), and type of e-signature (qualified or advanced).


Ident-methods for ZertES e-signatures
Signature approval methods


Broker-orchestrated registration, identification and e-signature

Broker-orchestrated registration, identification, and e-signature

Our remote e-signature solution includes a broker orchestrating electronic signatures, online identification, and approval methods for a signature application provider. The broker provides the signer with the appropriate signature approval method. If this method is not yet registered, the broker also handles the registration and identification of the signer. Additionally, there is the option to use multiple identification methods as a backup in case the initially selected method fails for the signer. Then, the user can approve and trigger the e-signature in a digital signing process. The orchestration is decision-based, depending on the requirements of the respective jurisdiction (EU or Switzerland) and the signature level (qualified or advanced).

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Popular features through the integration of the remote e-signature solution

Pan-European certified solution

As the platform from a leading European provider, our innovative remote signing solution seamlessly integrates with the legal requirements of the EU/EEA and Switzerland. With our trust and certification service accreditation, Swisscom Trust Services meets the strict legal requirements of the EU eIDAS regulation and the Swiss Signature Act ZertES. Our solution allows you to securely and legally electronically sign confidential documents and contracts - regardless of the jurisdiction you are in.

Embedded signing software

Our embedded e-signing software offers a comprehensive orchestration of electronic signatures and online identification and approval methods that seamlessly integrate into your signature application. With the remote signing solution, you can use white-labeling to leverage the benefits of our cutting-edge technologies in the backend while presenting your application to your customers. You can also customize the solution to meet your customers' needs based on your specific use case and user experience.


Only a hash value of the electronically signed document is transmitted during the signature process in an application. This ensures that Swisscom Trust Services never has access to the contents of the digital documents. The processing of digital identities for electronic signature purposes occurs in georedundant data centers in Switzerland. Unlike most others, Swisscom Trust Services assumes full liability for properly issuing electronic signatures, timestamps, and certificates.

Audited and standardized

Our auditors continuously review our processes and systems as an accredited certification service in Switzerland and a provider of trust services in the EU. All identification and authentication methods are approved according to the signature level (qualified or advanced) in Switzerland and the EU jurisdictions. Additionally, our signature solution complies with the latest international standards, such as ETSI, ISO, RFC, Common Criteria, etc.

Explore service packages for e-signatures

Service packages

Why Swisscom Trust Services

Swisscom Trust Services is an accredited trust service provider in Europe and a certification service provider in Switzerland. We assist software applications and solutions providers in digitizing the final steps of processes by seamlessly integrating our legally secure electronic signatures and seals. We take into account our clients' industry-specific and regulatory requirements.

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Qualified and advanced electronic signatures - recognized in the EU and EEA


Qualified and advanced electronic signatures - recognized in Switzerland


GDPR and FADP compliance

Protection of our customer's privacy and personal rights by the data protection requirements in the EU and Switzerland



Our standardized APIs leverage OIDC and OIDC-PAR/CIBA and meet the requirements of ETSI Standards TS 119 432 for remote signatures

Discover how our partners are driving the digital transformation forward with ZertES e-signatures

A fast and uncomplicated way to a digital rental contract at Wincasa

A shorter way to an audit report at Gastroconsult

Complete digital processes in the finance industry with RockON and Swisscom Trust Services.

SIX digitizes contract management with cloud services of Swisscom Trust Services and DocuSign

Additional products available in the embedded signing platform