
APIs – the driving force behind AI-based innovation, modern applications, and cloud infrastructure – are the #1 attack vector for cybercriminals. Existing tools don’t have API security controls,…

APIs – the driving force behind AI-based innovation, modern applications, and cloud infrastructure – are the #1 attack vector for cybercriminals. Existing tools don’t have API security controls,…
Focus: API and agentic AI application security platform
Headquarters: Austin, TX (corporate presence also noted in San Francisco)
Founded: 2013
Notable investors: Toba Capital, Y Combinator, Partech
Recent raise: Series C reported at $55M (2025)
API security, API abuse prevention, and protection of agentic/AI applications across cloud, multi-cloud, and on-premises environments.
2013
Computer and Network Security
$2.3M
Post-Y Combinator seed; investors included Partech and YC partners
$8M
$55M
Announced to fund product expansion for AI-era API security
“Backed by institutional investors including Toba Capital, Partech, and Y Combinator”
Since 2016, Wallarm has been on a mission to secure the internet's critical infrastructure: APIs. Today, we are the trusted choice for over 200 of the world's most innovative companies, from high-growth startups to Fortune 500 and Nasdaq leaders. Our unified platform provides full-lifecycle API security — helping teams discover their attack surface, protect against modern threats, and respond to incidents in real-time. As a graduate of Y Combinator and fueled by a recent $55M Series C, we are scaling our global, remote-first team of 150+ innovators to solve the next generation of security challenges.
Our product:
Wallarm API security solutions provide proven performance to support innovative companies serving millions of users and billions of API requests per month. Hundreds of Security and DevOps teams globally use Wallarm daily to:
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