# Best Certificate Lifecycle Management (CLM) Software - Page 4

*By [Brandon Summers-Miller](https://research.g2.com/insights/author/brandon-summers-miller)*


Certificate lifecycle management (CLM) and PKI software help companies with the process of authenticating and encrypting information using digital certificates. Public key infrastructure (PKI) is a cryptography framework that secures digital communication and protects data, devices, machines, and people from impersonation, unauthorized interception, tampering, or other attacks. The main benefit of this software is that it provides visibility and automation throughout the certificate lifecycle—certificate issuance, discovery, inventory, provisioning, deployment, securing, monitoring, renewal, and revocation. CLM and PKI software often replaces manual certificate management methods, such as tracking on spreadsheets, which helps companies prevent unplanned system downtime and system vulnerabilities stemming from errors or certificate expiration.

CLM and PKI software provide capabilities for the issuance, management, and automation of digital certificates, including but not limited to [SSL & TLS certificates](https://www.g2.com/categories/ssl-tls-certificates), client authentication certificates, digital signature, and SSH certificates. Use cases for PKI and CLM software include user authentication, machine-to-machine authentication for servers and containers, digitally signing code and documents, encryption and integrity for IoT devices, and much more.

To qualify for inclusion in the Certificate Lifecycle Management (CLM) and PKI category, a product must:

- Automate CLM, including discovery, inventory, provisioning, deployment, securing, monitoring, renewal, and revocation (some vendors will offer certificate issuance solutions via public certificate authority or private PKI functionality)
- Provide centralized visibility, control of, and reporting on certificates, keys, and ciphers
- Monitor and notify administrators when certificate expiration dates are nearing or use workflow to automatically take a specified action, such as certificate renewal or revocation
- Support certificates from multiple certificate authorities (CAs)






## G2 Grid® for Certificate Lifecycle Management (CLM) Software
![G2 Grid® for Certificate Lifecycle Management (CLM) Software plotting products by satisfaction and market presence](https://www.g2.com/categories/certificate-lifecycle-management-clm/grids.png?focus%5B%5D=139631&focus%5B%5D=20183&focus%5B%5D=99768&focus%5B%5D=168956&focus%5B%5D=10700&focus%5B%5D=56950&focus%5B%5D=23499&focus%5B%5D=146605)
Highlighted products: Sectigo Certificate Manager, AWS Certificate Manager, Keyfactor Command, Google Cloud Certificate Authority Service, Cloudflare Application Security and Performance, DigiCert ONE, AppViewX CERT+, and SecureW2 JoinNow.
Underlying data: [Grid® JSON](https://www.g2.com/categories/certificate-lifecycle-management-clm/grids.json?focus%5B%5D=sectigo-certificate-manager&focus%5B%5D=aws-certificate-manager&focus%5B%5D=keyfactor-command&focus%5B%5D=google-cloud-certificate-authority-service&focus%5B%5D=cloudflare-application-security-and-performance&focus%5B%5D=digicert-one&focus%5B%5D=appviewx-cert&focus%5B%5D=securew2-joinnow)


## How Many Certificate Lifecycle Management (CLM) Software Products Does G2 Track?
**Total Products under this Category:** 75

### Category Stats (Jul 2026)
- **Average Rating**: 4.4/5 (↑0.01 vs Jun 2026) The average rating of products in this category, based on all submitted ratings
- **Top Trending Product**: Cloudflare Application Security and Performance (+0.18%) - Among all products in this category, Cloudflare Application Security and Performance recorded the largest rating increase compared to last month
*Last updated: July 13, 2026*


## How Does G2 Rank Certificate Lifecycle Management (CLM) Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 1,700+ Authentic Reviews
- 75+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.


## Which Certificate Lifecycle Management (CLM) Software Is Best for Your Use Case?

- **Leader:** [Sectigo Certificate Manager](https://www.g2.com/products/sectigo-certificate-manager/reviews)
- **Highest Performer:** [EZCA](https://www.g2.com/products/ezca/reviews)
- **Easiest to Use:** [Sectigo Certificate Manager](https://www.g2.com/products/sectigo-certificate-manager/reviews)
- **Top Trending:** [Keyfactor Command](https://www.g2.com/products/keyfactor-command/reviews)
- **Best Free Software:** [Keyfactor Command](https://www.g2.com/products/keyfactor-command/reviews)


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## What Is Certificate Lifecycle Management (CLM) Software?

[Confidentiality Software](https://www.g2.com/categories/confidentiality)

## What Software Categories Are Similar to Certificate Lifecycle Management (CLM) Software?

- [SSL & TLS Certificate Tools](https://www.g2.com/categories/ssl-tls-certificate-tools)
- [Encryption Key Management Software](https://www.g2.com/categories/encryption-key-management)