Blackwall

Cybersecurity · Web Infrastructure

Milestone

Blackwall reportedly hits $1.1B valuation, becomes Estonia's newest unicorn

The milestone comes from an analytical ranking model built on revenue multiples, not a priced funding round or equity sale.

• Blackwall's valuation jumped 368% to €1.03 billion (about $1.11B) in Estonia's TopTech 2026 ranking, making it the country's newest unicorn on paper.
• Blackwall, formerly known as BotGuard, makes GateKeeper, security infrastructure software that filters malicious traffic before it reaches customer applications.
• TopTech is compiled by M&A advisory firm Prudentia Tallinn and Siena Secondary Fund using market caps, recent rounds, and investor fair-value estimates — Blackwall's figure is a model, not a transacted price.
• Blackwall's last priced round was a €45 million Series B in 2025 led by Dawn Capital with existing investor MMC Ventures, when its valuation stood near €221 million.
• The 368% jump was TopTech's biggest riser, lifting Blackwall from ninth to fifth place among Estonia's 30 most valuable tech firms, behind Wise (€11B), Bolt (€7B) and Veriff (€1.8B).
• The surge rides a global cybersecurity M&A wave, exemplified by Google's $32 billion acquisition of Wiz, which has pushed security-sector valuations up industry-wide.
• Blackwall's case shows how modeled rankings now compete with priced funding rounds as the signal of 'unicorn' status, blurring the line between market reality and analyst benchmarking.