Question 1

How many companies use mod_ssl vs OpenSSL?

Accepted Answer

48 companies use mod_ssl and 1,690 companies use OpenSSL in our database. OpenSSL is more widely adopted with 35.2x more companies than mod_ssl.

Question 2

What percentage of mod_ssl users also use OpenSSL?

Accepted Answer

100% of companies using mod_ssl also use OpenSSL (48 companies). This overlap suggests the tools serve complementary rather than competing purposes.

Question 3

Which industries prefer mod_ssl over OpenSSL?

Accepted Answer

The top industries using mod_ssl are Other, E-commerce & Retail, Media & Content, Financial Services & Fintech, Education & Learning. For OpenSSL, the top industries are Media & Content, Other, E-commerce & Retail, Education & Learning, Operations & Logistics.

Question 4

Can I get a list of companies using both mod_ssl and OpenSSL?

Accepted Answer

Yes. AgentData tracks 48 companies that use both mod_ssl and OpenSSL. Subscribe to access the full list with emails, tech stacks, and contacts via CSV or API.

	mod_ssl	OpenSSL
Companies	48	1,690
Category	Web server extensions	Web server extensions
Emails available	31	3,948
Overlap	100% of mod_ssl users also use OpenSSL (48 companies)

mod_ssl vs OpenSSL

Side-by-side comparison

Company adoption

Top industries

Top companies using mod_ssl

Top companies using OpenSSL

Related comparisons

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