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.
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
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
0 jobs at PromptArmor
Check back later for new openings
Business model
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
Leadership
Founder & CEO
Cofounder
Product Operations Lead
AI Security Director
Investors
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.
Pricing
Enterprise, quote-based; public reporting says pricing is tiered by number of vendors and discounted for assessments, monitoring, or both.
Differentiators
Technology
Customers
Competitors
Estimated revenue
Estimated $550K-$1M annual revenue/ARR (public estimates vary)
Estimated monthly visits
29.7K
Traffic estimate as of Jul 2026
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.
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.