Scale AI
YC S16 ↗San Francisco, US · Founded 2016 · 500 employees · 25 known investors
Scale provides high-quality training data, model evaluations, and full-stack AI systems for enterprises and governments to build and deploy AI applications. The company supplies data annotation, RLHF, benchmarking, and red-teaming services for machine learning models.
AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareArtificial IntelligenceMachine Learningin /scaleai/@scale_AIycombinator.com ↗

Founders & leadership· Y Combinator alumni (S16)
AW
Alexandr WanginFounder/CEO
Investors · 25
Adit Ventures Management, LlcNew York
Beyond CapitalLondon
Cheyenne VenturesWoodside
Coatue ManagementNew York · $1M – $20M
Geodesic CapitalFoster City
Harmony PartnersNew York
Human CapitalSan Francisco · $250K – $200M
ID8 InvestmentsNew Yorkvia Mussadiq Lakhani · inferred
Integra GroupeMenlo Park · $100K – $200K
JuniperoMiami
Next Play VenturesMenlo Park · $100K – $5M
Outcast VenturesSan Francisco · $500K
Partners ResoluteChicago
Qualcomm VenturesSan Diego · $5M
Rosecliff VenturesNew York City · $500K – $10M
S32Palo Alto
Section 32Palo Alto
Socium VenturesAtlanta · $3M – $25M
Spark CapitalSan Francisco · $500K – $25M
Y CombinatorSan Francisco · $500K
Inertia VenturesreportedNew York · $2M
Light Street CapitalreportedPalo Alto
Merantix CapitalreportedBerlin · $540K – $4.3M
Metareported
Outlander VCreportedNew York · $500K – $2.5M
Acquisitions · 2
Early investors' stakes continue via these dealsSymplex
Symplex conducts research and development in reinforcement learning applications. The company was acquired by Scale AI.
The smart data refinery
Data analytics platform (acquired by Scale AI)
In the news
- Top 100 AI Startup Funding & Investment Statistics [2026] | Second Talentsecondtalent.com · 2026
- Scale AI: Revenue, Funding & Valuation (2026)valueaddvc.com · 2026
- Modular Raises $250M to Scale AI's Unified Compute Layermodular.com · 2025
- Meta invests $14.3B in Scale AI to kick-start superintelligence labnytimes.com · 2025
- Meta to Pay Nearly $15 Billion for Scale AI Stake and Startup’s 28-Year-Old CEO — The Informationtheinformation.com · 2025
- Scale AI Expects to More Than Double Sales to $2 Billion in 2025 - Bloombergbloomberg.com · 2025
- Scale AI Raises $1B Series Fscale.com · 2024
- Exclusive: Scale AI secures $1B funding at $14B valuation as its CEO predicts big revenue growth and profitability by year-end | Fortunefortune.com · 2024
