20+ Best Alternatives to Pillar Security in 2026
The security platform for AI applications and agents
Looking for an alternative to Pillar Security? Below are 20 AI startups working in the same space — ranked by our Neuron score so the most credible options come first. Each card shows what makes the tool a viable substitute, pricing signals, and funding stage.
- 1View alternative →
GitGuardian
$106MSecrets detection and non-human identity security platform
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Free
- 2View alternative →
Astrix Security
$70MIdentity security for AI agents and non-human identities
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 3View alternative →
Aurascape
$50MAI-native security to discover, govern, and protect enterprise AI use
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Free
- 4View alternative →
Lumia Security
$18MGovernance and control for enterprise AI agents
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 5View alternative →
Knostic
$14MNeed-to-know access controls and security for enterprise AI
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Free
- 6View alternative →
WitnessAI
$85.5MAI safety and governance platform for the enterprise
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 7View alternative →
Klaimee
$500KLiability insurance for AI agents — you deploy them, we cover you.
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Contact-sales
- 8View alternative →
Saviynt
$870MAI-powered identity security for humans, machines, and AI agents
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 9View alternative →
HiddenLayer
UndisclosedTotal AI Security for the enterprise.
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 10View alternative →
Lakera
UndisclosedThe leading AI-native security platform to secure your AI future and accelerate GenAI, agents, and MCPs for enterprise teams.
Why it's similar: Shares categories with Pillar Security — AI Governance, AI for Cyber Defense.
💵 Enterprise · Contact sales
- 11View alternative →
Chainguard
$256MSecure, minimal container images for software and AI supply chains
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Free
- 12View alternative →
Semgrep
$204MAutonomous code security and static analysis for developers
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Free
- 13View alternative →
Alcatraz AI
$100MAI facial authentication that replaces the access badge with your face
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Hardware + subscription (contact sales)
- 14View alternative →
Horizon3.ai
$178.5MAutonomous penetration testing with NodeZero, run continuously at production scale
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Enterprise · Contact sales
- 15View alternative →
BlinkOps
$90MAgentic security automation platform built on no-code micro-agents
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Free trial
- 16View alternative →
Armilla AI
$31MInsurance and warranties built for AI risk
Why it's similar: Shares categories with Pillar Security — AI Governance.
💵 Insurance premiums / assessment fees (contact sales)
- 17View alternative →
Artemis Security
$70MAI-native protection platform for modern security operations
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Contact-sales
- 18View alternative →
TENEX.AI
$27MAI-native, human-led managed detection and response
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Managed service subscription (contact sales)
- 19View alternative →
Vijil
$23MTrust infrastructure to make AI agents reliable, secure, and safe
Why it's similar: Shares categories with Pillar Security — AI Governance.
💵 Free trial
- 20View alternative →
Pixee
$15MAgentic AppSec platform that auto-triages and fixes code vulnerabilities
Why it's similar: Shares categories with Pillar Security — AI for Cyber Defense.
💵 Free
Frequently asked questions
What are the best alternatives to Pillar Security?
The top-ranked alternatives to Pillar Security on NeuronFeed are GitGuardian, Astrix Security, Aurascape, Lumia Security, Knostic. Rankings are based on our Neuron score, which weighs funding, momentum and editorial signal.
Is there a free alternative to Pillar Security?
Yes — GitGuardian, Aurascape, Knostic offer a free plans. See the pricing column for each alternative above.
How is this list ranked?
We rank alternatives by shared categories with Pillar Security, then by our proprietary Neuron score (0–100) which combines funding, team quality, momentum, and editorial input. The list refreshes every 30 days.
Pillar Security vs GitGuardian — which is better?
It depends on use case. GitGuardian (Secrets detection and non-human identity security platform) is the #1-ranked alternative. See the full side-by-side at /compare/pillar-security-vs-gitguardian.
Explore more around Pillar Security
Contextual paths to related AI startups, deals and rankings.