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Head-to-head · Public Key Infrastructure Software

SSL.com Private Enterprise PKI vs XiPKI

  • Updated Nov 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score SSL.com Private Enterprise PKI #3 in Public Key Infrastructure Software 9.1/10 Free plan Free plan✓ 5 of 5 features Visit SSL.com
XiPKI #5 in Public Key Infrastructure Software 8.9/10 Open source ✓ 5 of 5 features Visit XiPKI

SSL.com Private Enterprise PKI leads on 0 checks, XiPKI on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSSL.com Private Enterprise PKI · 9.1/10
  • Free planonly SSL.com Private Enterprise PKI

SSL.com Private Enterprise PKI scores higher on our rubric for public key infrastructure software: 9.1 against 8.9 out of 10; our editors rank them #3 and #5.

On deployment model, XiPKI gives you On_premises where SSL.com Private Enterprise PKI offers Cloud.

SSL.com Private Enterprise PKI is the better fit for organizations wanting priced managed PKI. XiPKI is the better fit for open-source on-premises PKI teams.

  • SSL.com Private Enterprise PKI fits best

    Organizations wanting priced managed PKI

  • XiPKI fits best

    Open-source on-premises PKI teams

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Side by side

Feature SSL.com Private Enterprise PKI 9.1/10 Visit ↗ XiPKI 8.9/10 Visit ↗
At a glance
Editor score 9.1 8.9
Ranking #3 in Public Key Infrastructure Software #5 in Public Key Infrastructure Software
Best for Organizations wanting priced managed PKI Open-source on-premises PKI teams
Pricing model Free plan + paid Free
Starting price $2,000/yr Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud Self-hosted
Platforms Web Linux, macOS
Support Live chat, Tickets, Docs Tickets
Integrations 3 integrations 9 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features SSL.com Private Enterprise PKI 5/5 · XiPKI 5/5
ACME support ✓ ✓
SCEP support ✓ ✓
EST support ✓ ✓
HSM integration ✓ ✓
Certificate profiles ✓ ✓
Specs
Deployment model Cloud On_premises
Our review
Pros
  • Dedicated Root CA and Issuing CAs with HSM-backed keys
  • ACME, SCEP, EST, and REST API enrollment support
  • Certificate inventory, forecasting, audit logs, and SIEM/SOAR integration
  • Supports ACME, EST, SCEP, CMP, and REST enrollment
  • Integrates with multiple HSM products through PKCS#11
  • Combines CA, RA, OCSP, profiles, clustering, and post-quantum support
Cons
  • Lab plan is for development and testing, not production use
  • Private Enterprise PKI does not include the WebTrust compliance program
  • Pricing is indicative and subject to change
  • Requires on-premises deployment and infrastructure management
  • Runs on Linux or macOS with Java 11 or later
  • Its breadth may exceed the needs of teams seeking a hosted PKI service
Our verdict

SSL.com Private Enterprise PKI is a hosted private certificate authority service for organizations managing internal certificates across teams, devices, workloads, and applications. It provides a dedicated Root CA and Issuing CAs, with CA…

Read the review →

XiPKI is open-source public key infrastructure software for teams operating certificate infrastructure on premises. It provides certification authority and registration authority services, an OCSP responder, management components, and…

Read the review →
  1. SSL.com Private Enterprise PKIPublic Key Infrastructure Software 9.1Free plan
  2. XiPKIPublic Key Infrastructure Software 8.9Open source

Strengths and trade-offs

  • SSL.com Private Enterprise PKI — where it wins

    • Dedicated Root CA and Issuing CAs with HSM-backed keys
    • ACME, SCEP, EST, and REST API enrollment support
    • Certificate inventory, forecasting, audit logs, and SIEM/SOAR integration

    Where it doesn't

    • Lab plan is for development and testing, not production use
    • Private Enterprise PKI does not include the WebTrust compliance program
    • Pricing is indicative and subject to change

  • XiPKI — where it wins

    • Supports ACME, EST, SCEP, CMP, and REST enrollment
    • Integrates with multiple HSM products through PKCS#11
    • Combines CA, RA, OCSP, profiles, clustering, and post-quantum support

    Where it doesn't

    • Requires on-premises deployment and infrastructure management
    • Runs on Linux or macOS with Java 11 or later
    • Its breadth may exceed the needs of teams seeking a hosted PKI service
  • SSL.com Private Enterprise PKI9.1/10 · Free plan

    Managed private PKI with broad enrollment protocols, lifecycle controls, and published plan pricing.

    Visit SSL.comFull verdict →
  • XiPKI8.9/10 · Open source

    A technically broad, on-premises PKI platform for teams managing their own certificate infrastructure.

    Visit XiPKIFull verdict →

More comparisons

All public key infrastructure software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update