Grammarly

Grammarly’s reported fundraising history totals $545 million in equity rounds - highlighted by $200M Series B (Nov 11, 2021) and a $145M Series B (Mar 4, 2024) and more recently the company raised a $1B conventional debt facility (May 29, 2025) to support continued growth. Founded in 2009, Grammarly develops an AI-driven writing assistant used across browsers, apps and devices to improve clarity, correctness and tone. The combined capital has fueled model R&D, enterprise product expansion, global user growth, and the platform’s move into advanced generative-assistance features.