PromptArmor · Jul 2026
PromptArmor reported that a large share of tracked connectors changed capabilities or permissions, highlighting connector drift, indirect prompt-injection risk, and the need for continuous monitoring.
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
PromptArmor is a San Francisco-based AI risk intelligence and third-party risk management platform for security, privacy, legal, and vendor-risk teams. It helps enterprises discover which vendors use AI, assess AI-specific risk, and continuously monitor vendor changes across the AI stack.
Primary product
PromptArmor platform (AIIdentify, AIAssess, AIMonitor, and AIAssurance) for AI vendor risk assessment and continuous monitoring
Founded
2023
Headquarters
425 Divisadero Street, Suite 4, San Francisco, CA 94117, United States
Team size
1-10
Industry
Software Development
Sub-industry
AI security / third-party risk management
Offices
425 Divisadero Street, Suite 4, San Francisco, CA 94117, United States
San Francisco, California, United States (2 offices listed on LinkedIn)
Business model
Enterprise SaaS
Quote-based enterprise sales
Managed onboarding and support
Funding
Stage
Seed
Total raised
$3.2M
Latest round
Seed · Apr 2024
Latest amount
$3.2M
Apr 2024 · Y Combinator
Mar 2024
Jan 2024
Jan 2024
People & investors
Leadership
Founder & CEO
Cofounder
Product Operations Lead
AI Security Director
Work & culture
Early-stage, mission-driven, research-heavy team of security researchers and AI experts with a strong emphasis on high-agency engineering and customer support.
Compensation
No public salary bands or compensation details were found on the company site or public profiles.
Product & market
Pricing
Enterprise, quote-based; public reporting says pricing is tiered by number of vendors and discounted for assessments, monitoring, or both.
Differentiators
- —Focuses on net-new AI security problems rather than generic AI DLP, AI cloud asset management, or shadow AI
- —Built specifically for third-party/vendor AI risk management
- —Continuous daily monitoring of vendor AI changes and policy shifts
- —Risk assessments mapped to OWASP LLM Top 10, NIST AI RMF, and MITRE Atlas
- —Covers 26 AI risk vectors across cyber, privacy, and legal domains
- —Combines original threat intelligence with managed onboarding and 24-hour expert support
Technology
Python
React
Kubernetes
Slack
OAuth
SSO
RBAC
API access
Core DNA
AMP
Customers
Fortune 50 companies
Fortune 100 enterprises
Am Law 50 firms
Top 100 law firms
Healthcare organizations
Financial services firms
HubSpot
Ropes & Gray
Texas Mutual Insurance
Competitors
TrojAI
Portal26
CalypsoAI
Lasso Security
WhyLabs
Harmonic Security
Fiddler AI
Liminal
Protect AI
DeepKeep
Scale & contact
Estimated revenue
Estimated $550K-$1M annual revenue/ARR (public estimates vary)
Estimated monthly visits
29.7K
Traffic estimate as of Jul 2026
Latest news
Dark Reading · Apr 2025
Dark Reading covered PromptArmor's launch and its focus on assessing and monitoring third-party AI risk, especially indirect prompt injection and vendor AI changes.
Artificial Lawyer · Apr 2025
Artificial Lawyer described PromptArmor's legal-sector focus, its 26 risk vectors, and its tiered pricing based on vendor count and monitoring scope.
LinkedIn (Chris Howard) · Apr 2025
Chris Howard posted about PromptArmor's platform launch and noted Ritual Capital's investment and customer traction with Fortune 100 and law-firm teams.
Jobs and careers at PromptArmor
0 jobs at PromptArmor
No open positions
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