Fastest-growing SaaS companies
Current Trend data
Top 10 fastest-growing SaaS vendors
Anthropic has posted the most extraordinary growth of any vendor that Vertice tracks, with spend up 1,718% year-over-year – a scale that reflects a full year of compounding demand for AI models, not a single-quarter spike.
- Anthropic's growth dwarfs everything else on the list: At +1,718%, Anthropic's year-over-year growth is more than double the next-fastest vendor, reflecting the scale of enterprise adoption of Claude and related AI tooling over the past 12 months.
- AI-adjacent developer tools are surging: Cursor (+599%) and Clay (+420%) both point to fast-growing demand for AI-powered coding and data enrichment tools, categories that barely registered on this list a year ago.
- MongoDB's growth remains remarkably consistent: MongoDB has now shown sustained high growth across multiple measurement periods, reinforcing that demand for flexible, AI-ready data infrastructure isn't a one-off spike.
- OpenAI's growth looks smaller here, but isn't a slowdown: OpenAI topped the prior quarterly growth list at 78%, and its 277% year-over-year figure here reflects sustained, compounding growth over a full year rather than any deceleration – the two figures simply measure different time windows.
- Security and fintech infrastructure also feature prominently: Digicert (+327%), Wiz (+176%), FIS Global (+126%) and Xero (+110%) point to continued investment in certificate management, cloud security and financial infrastructure alongside the AI-led growth at the top of the list.
Why does this matter for procurement and finance teams?
Rapid vendor growth is a practical warning sign, not just background context. A vendor growing this fast within your own stack often means usage is scaling quickly exactly when consumption-based costs can spiral unexpectedly and when a newer, fast-scaling vendor most needs a proper risk review rather than a rushed sign-off. Vertice combines AI cost optimization with supplier risk management, so fast-scaling, usage-based spend gets tracked before it becomes a budget problem and newer vendors get properly vetted even when the pressure to move fast is high.
Data source: These insights are derived from over $75bn of global processed spend managed by Vertice in 2026.
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