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Signal Sciences builds a robust Web Application and API Protection (WAF) platform, serving as a next-generation solution for defending modern applications. The system provides comprehensive security for web applications, APIs, and microservices through capabilities like advanced bot management, distributed denial-of-service (DDoS) protection, and client-side attack defense. Its technical approach emphasizes real-time threat blocking and deep visibility, securing applications across various environments with minimal operational overhead.
The company was founded in 2014 by Andrew Peterson, Nick Galbreath, and Zane Lackey. This founding team brought significant expertise from their previous roles at Etsy, where they experienced firsthand the evolving challenges of securing high-traffic web applications. Their collective insight into the need for a more adaptive and developer-friendly security solution ultimately led to the creation of Signal Sciences, aiming to bridge gaps left by traditional security tools.
Signal Sciences’ offerings are designed for enterprises requiring sophisticated defense against contemporary web-based threats, securing their critical online assets and data. The platform’s approach allows organizations to deploy powerful protection without impeding development cycles or application performance. Its vision centers on enabling businesses to innovate rapidly and securely, ensuring their digital presence remains resilient against an increasingly complex threat landscape.
Signal Sciences has raised $62.0M across 4 funding rounds.
Signal Sciences has raised $62.0M in total across 4 funding rounds.
Signal Sciences is a technology company specializing in next-generation web application security, offering an award-winning WAF (Web Application Firewall) and RASP (Runtime Application Self-Protection) solution that protects web apps, APIs, and microservices.[1][2][3] It serves major enterprises across ecommerce, software, financial services, retail, healthcare, media, entertainment, and government sectors—including clients like Under Armour, Aflac, Duo Security, Adobe, and WeWork—securing over 40,000 applications and trillions of production requests monthly with real-time threat detection, scalable protection, and cloud DDoS mitigation.[1][2][3] The platform solves critical problems like OWASP Top 10 vulnerabilities, account takeover (ATO), feature abuse, and application-layer attacks by integrating seamlessly into modern DevOps, cloud, and CI/CD environments without performance impact or signature management, enabling dev, sec, and ops teams to deploy confidently.[1][2][5] Its growth as the "fastest growing web application security company" reflects strong momentum, evidenced by awards like InfoWorld’s Technology of the Year and integrations with tools like PagerDuty, Cisco, Okta, and Datadog.[2][3][4][5] Note: Signal Sciences was acquired by Fastly, enhancing its edge cloud capabilities.[3]
Search results do not provide specific details on Signal Sciences' founders, founding year, or early traction pivotal moments, limiting the backstory to its established reputation as a rapidly scaling security innovator.[1][2] The company emerged in response to evolving web threats amid accelerating DevOps, cloud adoption, AI-driven changes, and frequent deployments, pioneering a "continuous integration model" for security that deploys in minutes and delivers real-time attack visibility.[1] Early recognition came through partnerships with recognizable brands and awards, such as Computing’s DevOps Excellence Award for Best DevOps Security Tool, positioning it as a leader in modern app protection before its integration into Fastly's ecosystem.[2][3]
Signal Sciences rides the DevSecOps and cloud-native security trend, addressing the shift to rapid deployments, microservices, APIs, and AI-accelerated threats where traditional WAFs fail due to complexity and latency.[1][5] Timing is ideal amid rising L7 attacks like API abuse and credential stuffing, which strain resources and performance in distributed environments—its elastic platform aligns with hyperscale cloud adoption by Fortune 500 firms.[1][2][3] Market forces favoring it include exploding API usage, zero-trust mandates, and integration demands with observability tools (Datadog, PagerDuty), amplifying its influence on ecosystem standards for "security that scales anywhere."[2][4][5] Post-Fastly acquisition, it bolsters edge computing security, influencing how enterprises secure global web presences.[3]
Signal Sciences, now powering Fastly's security stack, is poised to dominate next-gen WAF/RASP as API economies and edge computing explode, with trends like AI-driven attacks and zero-trust architectures demanding its real-time, dev-friendly protection.[1][3][5] Expect deeper integrations, expanded DDoS resilience, and growth via Fastly's CDN reach, potentially capturing more of the $10B+ app security market amid regulatory pressures. Its trajectory from standalone innovator to edge security leader underscores adaptive platforms' edge in a threat-evolving landscape—cementing its role in safeguarding the modern web at scale.[1][3]
Signal Sciences has raised $62.0M in total across 4 funding rounds.
Signal Sciences's investors include Lorrie Norrington, Andreessen Horowitz, Bessemer Venture Partners, Building The Machine, Cowboy Ventures, CRV, DFJ, Harrison Metal, Index Ventures, Intel Capital, NextGen Venture Partners, O'Reilly AlphaTech Ventures.
Signal Sciences has raised $62.0M across 4 funding rounds. Most recently, it raised $35.0M Series C in February 2019.
