
Blackwall is a security and traffic management company that provides high-performance web security solutions for hosting providers. Their flagship product, GateKeeper, offers adaptive mitigation against malicious traffic, ensuring the safety of cloud-based assets and data centers. With over 2.3 million websites protected and a global footprint in over 30 countries, Blackwall stands out in the market for its advanced bot detection and traffic filtering capabilities. The company focuses on enhancing operational efficiency and revenue growth for service providers by offering scalable security services that cater to the needs of small and medium-sized businesses.

Blackwall is a security and traffic management company that provides high-performance web security solutions for hosting providers. Their flagship product, GateKeeper, offers adaptive mitigation against malicious traffic, ensuring the safety of cloud-based assets and data centers. With over 2.3 million websites protected and a global footprint in over 30 countries, Blackwall stands out in the market for its advanced bot detection and traffic filtering capabilities. The company focuses on enhancing operational efficiency and revenue growth for service providers by offering scalable security services that cater to the needs of small and medium-sized businesses.
What they do: AI-driven bot mitigation and web security (GateKeeper reverse proxy)
Stage & raise: Series B 45M announced March 2025
Headquarters: Tallinn, Estonia (founded 2019)
Scale: Deployed across >2.3M websites via channel partners
Web security, bot mitigation, traffic management for hosting providers and SMB channels.
2019
Cybersecurity / Web infrastructure
12 million
45 million
MMC Ventures participated
“Led by Dawn Capital with participation from MMC Ventures”