Spherical Defense is a technology company.
Spherical Defense has raised $2.0M across 1 funding round.
Spherical Defense has raised $2.0M in total across 1 funding round.
Spherical Defense has raised $2.0M in total across 1 funding round.
Spherical Defense's investors include Antler, Ballistic Ventures, Conversion Capital, Founders Fund, General Atlantic, Greylock, Maveron, Nyca Partners, Verified Capital, Y Combinator, Kris Duggan.
Spherical Defense is a cybersecurity company specializing in AI-powered Web Application Firewalls (WAFs) designed specifically for protecting APIs, SaaS, and mobile applications. Their product uses unsupervised deep learning to detect and block malicious traffic and misuse in real-time, adapting dynamically to changes in user behavior and application updates without requiring historical attack data. This approach minimizes false positives and enables rapid deployment with easy integration into existing infrastructures, serving organizations that require advanced, autonomous API security solutions. As of 2025, the company generates approximately $7 million in revenue and operates primarily from London and California[1][2][3][4].
Founded in 2017, Spherical Defense emerged from the need to address the growing complexity and volume of API traffic, which now constitutes the majority of web traffic. The founders, including CEO Dishant Shah, leveraged expertise in AI and cybersecurity to develop a system that learns normal application behavior autonomously, eliminating the need for manual rule-setting typical of traditional WAFs. Early traction was driven by the increasing demand for scalable, adaptive API security solutions that can keep pace with evolving cyber threats and application environments[1][2][6].
Spherical Defense rides the wave of increasing API adoption and the corresponding rise in API-targeted cyberattacks. With APIs now accounting for over 80% of web traffic, traditional security tools struggle to keep pace with the dynamic and complex nature of API interactions. The company’s AI-driven, autonomous approach aligns with broader trends toward automation and real-time threat detection in cybersecurity. This timing is critical as enterprises accelerate digital transformation and cloud adoption, creating a larger attack surface that demands innovative, scalable security solutions. By focusing on API security, Spherical Defense influences the cybersecurity ecosystem by pushing forward AI-based defenses that reduce manual overhead and improve resilience against sophisticated threats[1][4].
Looking ahead, Spherical Defense is well-positioned to capitalize on the growing importance of API security as digital ecosystems expand. Future growth will likely be driven by continued advancements in AI and machine learning, enabling even more precise and adaptive threat detection. The company may also expand its product capabilities to cover broader aspects of application security and integrate with other cybersecurity platforms. As regulatory and compliance pressures around data privacy increase, Spherical Defense’s on-premises data handling and transparent operation will become even more attractive to enterprises. Their influence in shaping autonomous, AI-powered cybersecurity solutions is expected to grow, reinforcing their role as a key innovator in the API security space[1][2][4].
Spherical Defense has raised $2.0M across 1 funding round. Most recently, it raised $2.0M Seed in January 2018.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Jan 1, 2018 | $2.0M Seed | Antler, Ballistic Ventures, Conversion Capital, Founders Fund, General Atlantic, Greylock, Maveron, Nyca Partners, Verified Capital, Y Combinator, Kris Duggan |