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PromptArmor

YC W24

San Francisco, US · Founded 2023 · 20 employees on LinkedIn · Hiring · 10 known investors

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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.

SKShankar Krishnan
Shankar KrishnanCo-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.
VJVikram Jayanthi
Vikram JayanthiCo-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 · 10

Litquidity Ventureslisted by Litquidity Ventures

How we know: Y Combinator's founder network · Not right? Tell us

Pioneerlisted by PioneerToronto, Ontario

How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us

Ritual Capitallisted by Ritual CapitalMenlo Park · $100K – $500Kvia Chris Howard · inferred

How we know: Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us

Greylock PartnersreportedSan Francisco · $100K – $10M

How we know: Y Combinator's founder network · Not right? Tell us

Liquid VenturesreportedSan Francisco · $250K – $5M

How we know: Y Combinator's founder network · Not right? Tell us

Lockstep Angel InvestmentsreportedPalo Alto

How we know: Y Combinator's founder network · Not right? Tell us

Prosus VenturesreportedAmsterdam

How we know: Y Combinator's founder network · Not right? Tell us

Twenty Two VenturesreportedPalo Alto · $50K – $250K

How we know: Y Combinator's founder network · Not right? Tell us

Related companies · 10

ArmorArmor provides cloud-native cybersecurity solutions including managed detection and response, compliance automation, and threat protection across multi-cloud environments. The company serves organizations across healthcare, financial services, and other regulated industries worldwide.
Gecko SecurityGecko is a code security platform that uses AI to analyze codebases, infrastructure, and logic to detect exploitable vulnerabilities and provide developer fixes. It targets enterprise and startup development teams seeking to find complex, multi-step attack chains and business logic flaws in their code and microservices.
ArmorcodeArmorCode 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.
TridentTrident is an AI-assisted security platform for continuous web and API penetration testing and cloud attack-path analysis, connecting cloud assets, identities, data stores, and application findings to prioritize risks. It serves security teams and integrates with cloud, identity, data, and developer platforms such as AWS, Azure, Google Cloud, Kubernetes, Snowflake, Okta, and GitHub.
CorgeaCorgea provides developer-first security solutions that enable developers and security teams to ship secure code without slowing down development velocity.
OpenAIOpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.
Veria LabsVeria AI is an autonomous pentesting platform that identifies and exploits security vulnerabilities across code repositories, then generates fix recommendations. It integrates with developer tools to surface exploitable flaws that automated reviews and human security teams typically miss.
Palo Alto NetworksPalo 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.
FuzzbuzzFuzzbuzz provides automated fuzzing testing delivered as a cloud service for software developers seeking to identify vulnerabilities and edge cases in their applications.
Sentinel OneSentinelOne 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 working in the same space as PromptArmor.

Legal entities · 1

corporate structure
Board Security Inc.

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, Litquidity Ventures, Pioneer, Ritual Capital, Y Combinator, Greylock Partners, Liquid Ventures, Lockstep Angel Investments and 2 more.
Where is PromptArmor headquartered?
PromptArmor is headquartered in San Francisco, US.