Certum was founded over 20 years ago, making it one of the oldest Certificate Authorities in Europe.
Certum certificates are a good choice for small and medium-sized businesses that place high value on securing their sites and excellent browser acceptance. Certum is a part of the listed Assecco Group, which develops innovative software solutions with over 27,000 employees worldwide.
Certum certificates are a good choice for small and medium-sized businesses that place high value on securing their sites and excellent browser acceptance. Certum is a part of the listed Assecco Group, which develops innovative software solutions with over 27,000 employees worldwide.
Email signature and encryption
S/MIME email certificates from Certum guarantee the authorship and integrity of the email and provide effective protection against unauthorized reading by encrypting the content. Protect your email communication today with an affordable S/MIME certificate from Certum.

Certum Email ID Individual
From EUR 12/yr
for a 3-year certificate
S/MIME EMail Certificate
for Individuals- 1 year: EUR 15
- 2 years: EUR 13/yr
- 3 years: EUR 12/yr
- Class 1 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- Issued instantly
- 15 day Refund Policy
Certum Email ID Business
From EUR 33/yr
for a 3-year certificate
S/MIME EMail Certificate
for Professionals- 1 year: EUR 45
- 2 years: EUR 39/yr
- 3 years: EUR 33/yr
- Class 2 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- Paperwork required
- 15 day Refund Policy
Certum Email ID Enterprise
From EUR 49/yr
for a 3-year certificate
S/MIME EMail Certificate
for Organizations- 1 year: EUR 59
- 2 years: EUR 55/yr
- 3 years: EUR 49/yr
- Class 3 S/MIME EMail Certificate
- Sign & Encrypt Emails
- Validation of EMail Address
- + First Name & Family Name
- + Company Name
- Paperwork required
- 15 day Refund Policy