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Impart Security: API security platform providing collaboration for security, development, and product teams to secure cloud-native applications.
Impart Security, headquartered in San Francisco, California, provides an API security collaboration platform designed to empower security, development, and product teams in building and securing cloud-native applications. The platform integrates machine learning, security workflows, and cross-team collaboration to deliver comprehensive API and runtime application security solutions. The company has raised $6 million in total seed funding, with CRV leading its seed round and 8-Bit Capital participating in pre-seed investment. Operating with fewer than 25 employees, Impart Security has reported revenue below $5 million. Its leadership includes co-founder and CEO Jonathan DiVincenzo, formerly VP Product at Signal Sciences, and another co-founder who served as a Chief Architect at Signal Sciences. Impart Security was founded in 2021 by Jonathan DiVincenzo and other former Signal Sciences executives.
Impart Security has raised $20.0M across 3 funding rounds.
Impart Security has raised $20.0M in total across 3 funding rounds.
Impart Security has raised $20.0M in total across 3 funding rounds.
Impart Security's investors include Madrona Ventures, 8-Bit Capital, Alumni Ventures, Andreessen Horowitz, Coinbase Ventures, CRV, Haun Ventures, Haystack, LGF, NEO, Hans Tung, O'Reilly AlphaTech Ventures.
Impart Security builds a runtime protection platform that provides security teams with programmable, AI-assisted controls for protecting applications, APIs, and LLMs. It enables rapid design, testing, and deployment of adaptive defenses against web, API, and AI threats, addressing limitations of traditional WAFs by integrating AI into the security rule lifecycle for automated feedback and safe production deployment[1][2][3]. The platform serves security practitioners and CISOs in enterprises, solving problems like poor visibility into attack surfaces, ineffective blocking of API attackers, and the rigidity of one-size-fits-all policies, while supporting a hybrid go-to-market strategy blending product-led growth (e.g., "Try Impart" self-service) with sales-led enterprise deals[3][5].
Founded by experts with experience building four WAF products, Impart has raised $12M in funding and gained traction through AWS Marketplace availability, customer testimonials, and integrations for APIs, microservices, and Infrastructure as Code[1][3][5].
Impart Security emerged from the founders' deep experience in network, cloud, and application security across four companies, where they worked closely with hundreds of CISOs and practitioners facing runtime protection challenges[1][6]. The idea crystallized around the need for tools that truly block attacks rather than just alerting, while giving teams customizable control over evolving threats like APIs and LLMs—gaps they observed in existing solutions[1][6]. The company name "Impart Security" reflects their mission to help practitioners "make known the unknown" attack surface and impart security knowledge organization-wide, drawing from the founders' empathy for daily security struggles[6].
Early traction includes a $12M funding round, likely fueled by this expertise, and product launches emphasizing runtime efficacy, with pivotal moments like AWS Marketplace listing for natively built API and WAF solutions[3][5].
Impart rides the surge in API proliferation, LLM adoption, and sophisticated runtime threats, where traditional WAFs fail to adapt or provide true visibility into production traffic[1][6]. Timing aligns with rising enterprise needs for AI-enhanced security amid microservices and Infrastructure as Code shifts, amplified by market forces like increasing API attacks and demand for DevSecOps integration[3][5]. By enabling programmable, empathetic tools, Impart influences the ecosystem through better practitioner success, reduced alert fatigue, and contributions to "agentic security"—pushing the industry toward proactive, code-native defenses that scale with cloud-native apps[4][6].
Impart Security is poised for expansion by capitalizing on its $12M funding to scale hybrid GTM, deepen AWS integrations, and extend "agentic" protections to emerging LLM threats[3][5]. Trends like AI-driven automation in security and zero-trust API architectures will propel growth, potentially evolving its influence toward platform dominance in runtime protection. As founders' WAF expertise meets adaptive tech, Impart could redefine secure app development, empowering teams with the control that legacy tools lack[1][4].
Impart Security has raised $20.0M across 3 funding rounds. Most recently, it raised $12.0M Series A in June 2025.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Jun 1, 2025 | $12.0M Series A | Madrona Ventures | 8-Bit Capital, Alumni Ventures, Andreessen Horowitz, Coinbase Ventures, CRV, Haun Ventures, Haystack, LGF, NEO, Hans Tung, O'Reilly AlphaTech Ventures, Sequoia Capital, Tusk Venture Partners, Amjad Masad, Gokul Rajaram, Ron Pragides, Ryan Sarver, Ryan Tedder |
| Jul 1, 2022 | $6.0M Seed | CRV | 8-Bit Capital, Haystack, O'Reilly AlphaTech Ventures |
| Dec 1, 2021 | $2.0M Seed | 8-Bit Capital, Addition, Alumni Ventures, Andreessen Horowitz, Bond, CRV, Floodgate, General Catalyst, Greylock, Haystack, Kleiner Perkins, Lux Capital, Madrona Ventures, Matrix, O'Reilly AlphaTech Ventures, Tribe Capital, Venture Highway, Bradley Horowitz, Elad Gil, Henry Kravis, Nico Rosberg |