What Is the Fastest Growing AI Company?

Short Answer: Among publicly traded companies, Databricks is widely regarded as the fastest-growing AI company, posting 55% year-over-year revenue growth and surpassing a $4.8 billion revenue run rate. If including private companies, Anysphere (Cursor) and Cognition AI (Devin) are scaling even faster from smaller bases.

Identifying the fastest-growing AI company requires distinguishing between publicly traded entities with verifiable financials and private AI darlings with funding-fueled growth narratives. Here’s the breakdown.

Publicly Traded: Databricks

Databricks is a unified data and AI platform company. Its lakehouse architecture serves enterprise AI workloads across data engineering, machine learning, and generative AI. Key growth metrics:

• Revenue run rate: $4.8 billion (growing 55% YoY)
• Valuation: $134 billion (as of its most recent funding round)
• Positioning: Competing with Snowflake in enterprise data, while expanding into AI model serving and vector search
• IPO status: Databricks has filed for an IPO but has not yet gone public — investors access via private secondary markets

Databricks’ growth is particularly impressive because it is growing at 55% while approaching $5 billion in revenue — a scale where most companies slow to 20-30% growth. Its focus on enterprise AI adoption (not just AI model training) positions it well in the 2026 “Inference Era.”

Private AI Giants: OpenAI, xAI, Anthropic

If considering private companies, the growth rankings look different:

• OpenAI — Revenue reportedly surpassed $4 billion in 2024 and is growing 3-4x year-over-year. Valued at $500 billion as of October 2025. Not publicly traded.
• xAI (Elon Musk) — Raised $20 billion from Nvidia and Cisco in January 2026, valuing the company at $200B+. Grok model deployment across X (Twitter) and enterprise channels is driving rapid user growth.
• Anthropic — Valued at $183 billion with strong enterprise Claude adoption. Annual revenue growth estimated at 100%+.
• Perplexity — AI search engine growing 400%+ in queries year-over-year, though revenue scale is still modest compared to Databricks.

Publicly Traded Fast-Growth AI Plays

Among publicly traded stocks, these merit consideration:

• Palantir (PLTR) — AI-powered data analytics for government and enterprise. Revenue grew 21% YoY to $2.2 billion in 2025, with accelerating AI platform (AIP) adoption.
• SoundHound AI (SOUN) — Voice AI growing 80%+ YoY in revenue. Not yet profitable but scaling rapidly in automotive, restaurant, and financial services verticals.
• Guardforce AI (GRFF) — AI security and automation growing revenue at 50%+ annually from a small base.

Fastest Growing by Category

To be precise about the answer, growth rates vary by what you measure:

• By revenue growth rate: xAI (binary outcome, massive but unauditable) or SoundHound AI (80%+ annually, publicly verified)
• By user growth: ChatGPT/Claude (hundreds of millions of users) but revenue monetization still catching up
• By enterprise revenue: Databricks (55% YoY at near-$5B scale, most credible)
• By valuation growth: xAI ($200B+ from near-zero in under 3 years)

The Bottom Line

If the question is about publicly traded, verifiable growth, Databricks is the most credible answer at 55% YoY revenue growth approaching $5 billion in annual revenue. For investors who can access private markets, xAI and Anthropic are growing faster but without the same transparency or liquidity. Among fast-scaling public AI stocks worth watching, Palantir and SoundHound AI round out the top growth stories.