Blackwall raises $100M at $2.2B valuation to scale its web traffic optimization and management platform

Web infrastructure company Blackwall has successfully raised $100 million in a Series C funding round, bringing its valuation to $2.2 billion. The Estonian-based firm specializes in cybersecurity and web-traffic management, developing tools to protect websites from malicious traffic. Their flagship product, GateKeeper, filters out harmful bots, application-layer distributed denial-of-service attacks, and brute-force login attempts before they reach client applications.

Blackwall offers additional services such as firewalls, load balancing, and optimization tools to differentiate legitimate and AI-generated traffic from potential threats.

Co-founder and CEO Nikita Rozenberg stated that the web is becoming more automated, distributed, and complex, yet the infrastructure supporting it remains fragmented. Rozenberg aims to build a comprehensive traffic management ecosystem that unites these industries. The company's name change from BotGuard to Blackwall in March 2025, following a Series B funding round, alludes to Cyberpunk 2077, a science fiction video game where the Blackwall serves as a digital barrier against rogue artificial intelligences.

The recently acquired capital will be utilized to expand globally and enhance its platform, offering infrastructure providers cutting-edge technology to participate in the next generation of the web. AVP led the funding round, backed by investors Dawn Capital, MMC Ventures, and Tera Ventures. AVP General Partner Warda Shaheen praised Blackwall for its unique position as a security company that scales with the internet, becoming indispensable as more web traffic comes from agents.

Blackwall partners with web hosting and cloud providers to identify unwanted traffic, reduce operational costs, and enhance the speed of traffic. Its modular structure empowers customers to select, package, and bundle security features, generating revenue without the need to build or maintain the technology themselves.

The web hosting market reached $150 billion in 2025 and is projected to grow to $178 billion by the end of 2025 and $506 billion by 2033. Blackwall contributes to this market by offering cybersecurity resilience for providers, enabling them to incorporate its services into their offerings. According to Grand View Research, the market is primarily driven by the growth of startups and small businesses online.