GitLab has raised $435 million through multiple rounds, starting with early investments like its Seed round ($1.5M in 2015) and rapidly progressing into major growth capital, including Series A ($4M), Series B ($20M), Series C ($20M), Series D ($100M), and a large Series E round of $268M in 2019. These rounds featured leading investors such as Khosla Ventures, Google Ventures, ICONIQ Growth, and Goldman Sachs. This steady capital infusion helped GitLab scale its DevSecOps platform, enhance AI-driven security features, and ultimately go public while serving enterprise customers worldwide.