DigiCert
The DigiCert ONE platform unifies PKI, DNS and certificate lifecycle management and prepares you for the quantum era.
United States
- Founded2003
- Headcount1,001 to 5,000
What this listing assures you
How QSECDEF membership works →- TrainingTeam members take part in continuous training and skills updates with our team.
- VettedWe have high confidence in this team's capabilities and skills base.
- Provable claimsCommitment to transparent and technically correct communications to customers.
- QSECDEF ContributorCommunity contributor and presenter.
- Membership CharterHas signed the Members' Charter, committing to fair and transparent business practices.
- LeadershipAttends the QSECDEF Annual Symposium.
About DigiCert
DigiCert exists to make digital trust endure. The company began by mastering PKI when the internet needed certainty. As certificate lifecycles shrank and complexity grew, trust could no longer be managed one certificate at a time, so DigiCert ONE now weaves visibility, automation and control into infrastructure that keeps working as everything else changes.
The AI-powered DigiCert ONE platform unifies PKI, DNS and certificate lifecycle management to secure infrastructure, software, devices, messages, AI content and agents. More than 125,000 customers, including over 90 per cent of the Fortune 500, rely on it across 180 countries.
DigiCert's experts help define how digital trust works through the CA/Browser Forum, IETF and ETSI, covering identity, encryption, certificate governance and post-quantum security. For PQC, the Quantum Central product and the open-source TrustCore SDK cover cryptographic inventory, migration, testing and proof of readiness.
Reviewed 30 October 2026 Source: digicert.com/about
What they offer
Quantum Central
Builds cryptographic visibility, applies readiness policies, turns gaps into remediation and proves PQC readiness over time.
digicert.comTrust Lifecycle Manager
Discovers and inventories certificates, automates issuance and renewal, and enforces policy to prevent outages.
digicert.comSoftware Trust Manager
Quantum-ready code signing with policy-driven workflows across builds, teams and release pipelines.
digicert.comDevice Trust Manager
Verifiable identity for connected devices from factory to field, with post-quantum cryptography for manufacturers.
digicert.comTrustCore SDK
Open-source SDK to embed post-quantum cryptography directly into applications and devices.
github.comTLS/SSL certificates
Publicly trusted TLS, code signing and S/MIME certificates with fast issuance and strong validation.
digicert.comWho they work with
Case studies
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Abbott
PKI modernised for long-life connected medical devices, trusted software and post-quantum readiness with DigiCert ONE.
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Rothschild & Co.
Certificates automated across Azure, on-premises and third-party systems, supporting compliance, crypto-agility and PQC readiness.
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Merck
Certificate management modernised across machine identities, devices and critical infrastructure, with post-quantum readiness.
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GE HealthCare
More than 140,000 certificates managed with Trust Lifecycle Manager, preventing downtime through automation.
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Kyndryl
Public and private PKI automated across 100,000+ human and millions of non-human identities, advancing self-service and crypto-agility.
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Zscaler
DigiCert supports Zscaler's ability to ensure trust when processing customers' sensitive traffic.
Proof
People
Leadership as listed on digicert.com/about/leadership, checked 30 October 2026
Jobs
