Estonia-based Blackwall, which builds web traffic security tools for hosting providers, said on Tuesday that it has raised $100 million at a $2.2 billion valuation. It builds products that helps websites grapple with the skyrocketing volume of bot traffic, especially AI agents.
The Series C was led by AVP, with participation from existing investors Dawn Capital, MMC Ventures and Tera Ventures. Blackwall’s executive chairman, Roi Carthy, told TechCrunch this funding round increased the company’s valuation by 4 times since its previous fundraise in 2025.
