[Cybersecurity Company Horizon3 Secures $250 Million in Series E Funding, Valuation Exceeds $2 Billion] Deep Tide TechFlow reports that on August 3, according to Forbes, San Francisco-based cybersecurity company Horizon3 completed a $250 million Series E funding round, co-led by NightDragon and NEA, with a valuation exceeding $2 billion—more than tripling from its approximately $650 million valuation a year ago. The round was oversubscribed, with the company achieving an annual recurring revenue growth rate of 120% and serving over 6,500 clients, including the U.S. National Security Agency (NSA), the Cybersecurity and Infrastructure Security Agency (CISA), and four Fortune 10 companies.