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B-Trust is the trademark of the services, provided by the company as an accredited certification service provider - issuance, renewal, re-issuance and management of Qualified Electronic Signature Certificates, Qualified Electronic Time Stamps, Advanced Electronic Signatures, Electronic Certificates, Server Certificates. Providing electronic signing and electronic signature validation services.

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41 Tsar Boris III Blvd. 1612 Sofia

working hours:every working day: 08:30 – 17:30

phone:0700 199 10
for Vivacom fixed network subscribers - at the price for a single city call
for subscribers of mobile networks - at the price for a call within the network, according to the customer's tariff plan

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