PromptArmor
YC W24San Francisco, US · Founded 2023 · 20 employees on LinkedIn · Hiring · 3 known investors
PromptArmor provides a security platform that protects enterprise organizations from AI-specific security threats and vulnerabilities. The company focuses on novel AI security challenges that traditional cybersecurity solutions do not address.
Also known as Board Security Inc.
AI & Machine LearningCybersecurityEnterprise SoftwareGenerative AISecurityAIUnited States of AmericaAmerica / Canada
Founders & leadership· Y Combinator alumni (W24)
PromptArmor was founded in 2023 by Shankar Krishnan and Vikram Jayanthi.
SK
Shankar KrishnaninCo-founder · Managing DirectorShankar Krishnan previously held roles at Tesla, Accenture, Observe, and Snappr, and studied data science and economics at UC Berkeley. He now leads PromptArmor, focused on AI security and compliance.
VJ
Vikram JayanthiinCo-Founder & CTOVikram Jayanthi previously worked on infrastructure and security at Google, Roblox, and Symantec. He studied computer science and public policy at UC Berkeley and is co-founder of PromptArmor.
Investors · 3
Competitors · 6
by search overlapArmor40 shared keywordsArmor provides managed cloud and multicloud security and compliance services, combining AI-driven threat detection with 24/7 security experts. It serves enterprises seeking to protect mission-critical infrastructure and meet regulatory compliance requirements.
Armorcode26 shared keywordsArmorCode provides unified vulnerability management and application security posture management for enterprises, aggregating findings across security tools to prioritize and remediate security risks in software, cloud infrastructure, and AI systems.
Netezza21 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
OpenAI20 shared keywordsOpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.
Palo Alto Networks18 shared keywordsPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
Sentinel One17 shared keywordsSentinelOne provides an AI-powered cybersecurity platform for enterprises that integrates endpoint protection, threat detection, and incident response capabilities. The company serves large enterprises, including many Fortune 500 organizations, to protect against cyber threats at scale.
Companies competing with PromptArmor for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does PromptArmor do?
- PromptArmor provides a security platform that protects enterprise organizations from AI-specific security threats and vulnerabilities. The company focuses on novel AI security challenges that traditional cybersecurity solutions do not address.
- Who founded PromptArmor?
- PromptArmor was founded by Shankar Krishnan, Vikram Jayanthi in 2023.
- Who are PromptArmor's investors?
- PromptArmor's investors include Afore Capital, Ritual Capital, Y Combinator.
- Where is PromptArmor headquartered?
- PromptArmor is headquartered in San Francisco, US.




