Qualified trust service provider
“DEPOSIT SIGN” LLC

By order of the Ministry of Digital Transformation of Ukraine dated 28.05.2020 No. 78, information about DEPOSIT SIGN LLC was included in the Trusted List of the Central Certification Authority.

The electronic service DEPOSITSIGN, developed and owned by DEPOSIT SIGN LLC, meets the requirements of the legislation of Ukraine in the field of information protection, which is confirmed by the decision of the Administration of the State Service for Special Communications and Information Protection of Ukraine dated 05.06.2026 on the inclusion of the information system of DEPOSIT SIGN LLC in the list of authorized security systems.

Main services we provide

1. Generation of qualified electronic signature and seal certificates
2. Storage of private electronic signature keys
3. Generation of qualified electronic timestamps (both as part of the QES creation service and separately)

Today, QTSP “DEPOSIT SIGN” LLC is:

• more than 90 service points throughout Ukraine
• more than 120 thousand active clients
• own signature server
• open API methods, including for signing and encrypting tax reports
• service availability level (SLA) for 4 years is 99.8%
• signing service speed is 3,000 requests/sec (in CAdES-X Long format)
• possibility of integration into any software product taking into account the client’s needs
• easy administration of QES within the organization thanks to the functionality “Company Administrator”
• user’s account, in which each QES owner has the opportunity to independently: block/unblock access to the QES personal key, block/cancel their qualified electronic signature certificate, generate temporary keys in a file container or on their own physical token (the validity of such certificates is limited in time and is determined by the owner)
• convenient and mutually beneficial affiliate program
• free QES for use in the software PRRO Checkbox
• controlled use of QES within the framework of a predetermined software or customer’s information system
• the ability to use our service to sign a set of documents
• an electronic identification tool with the highest level of trust
• early reminder about the need to extend the validity period of QES certificates