Estonia-based Blackwall secured $100 million in a Series C funding round on Tuesday, pushing its blackwall valuation to $2.2 billion. The company builds web traffic security tools that help websites handle a massive jump in bot traffic, particularly from automated software and AI agents.
Key takeaways
- Blackwall raised $100 million at a $2.2 billion valuation in a Series C round led by AVP.
- The company quadrupled its valuation since its previous fundraise in 2025.
- Blackwall sells its security tools through hosting and cloud providers rather than directly to websites.
- The startup plans to expand its global operations and build more security tooling.
What drives the blackwall valuation higher?
TechCrunch reports that the Series C round was led by AVP. Existing investors Dawn Capital, MMC Ventures and Tera Ventures also participated in the financing. Executive chairman Roi Carthy told TechCrunch that the round multiplied the company valuation by four times compared to its previous fundraise in 2025.
Web infrastructure companies like Cloudflare, Akamai, Imperva and Blackwall operate in a demanding market. They face DDoS attacks, botnet farms, malicious requests and swarms of AI agents going rogue. However, this environment creates a chance to make money by helping hosting providers manage unwanted traffic.
How do web traffic security products work?
Blackwall uses a channel approach instead of competing directly with big names in its sector. The firm partners with web hosting, managed service and cloud providers. It hands over a bundle of customizable tools so these providers can offer security services to their own clients under their own branding.
Co-founder and CEO Nikita Rozenberg told TechCrunch that hosting companies can mix and match components, set prices, and share revenue with Blackwall. The firm offers a free tier to show traffic and threats, then charges for protection tools. Services include threat intelligence, certificate management, DDoS protection, traffic routing and examining web traffic to separate legitimate visitors from malicious bots.
What happens next?
Blackwall plans to use the fresh capital to expand across North America, Europe, Asia-Pacific and the Middle East. The startup also intends to develop more security tooling for its cloud and managed service partners. Rozenberg sees a future opportunity as AI agents start transacting on behalf of users, requiring systems to manage agent access, terms and payments.
Frequently asked questions
Blackwall reached a $2.2 billion valuation after raising $100 million in its latest funding round.
The Series C funding round was led by AVP, with participation from Dawn Capital, MMC Ventures and Tera Ventures.
Blackwall uses a channel approach, working through web hosting, managed service and cloud providers who then offer the security tools to their own clients.
Blackwall provides services like threat intelligence, certificate management, DDoS protection, traffic routing and bot filtering using digital fingerprinting and AI models.
Blackwall is based in Estonia and plans to expand its operations across North America, Europe, Asia-Pacific and the Middle East.
Based on reporting by TechCrunch. Read the original article
