Directory / Agent Observability & Evals
Arize AI
AI observability and evaluation (Phoenix)
Headcount
247
▲ 15.3%▲ 38.5%3m · 6m
src: Clay (LinkedIn headcount)
X followers
5,347
——7d · 30d
src: X API public metrics 2026-11-04
Traffic / month
114.3K
src: Semrush
Latest round
$70M
Series CFeb 20, 2025
// profile
Product
- Agent type
- AI agent engineering, observability, and evaluation platform for building and continuously improving production AI agents (including managed and multi-agent/swarm workflows).
- Primary buyer
- AI engineers and AI teams building, operating, and improving production AI agents.
- Integrations
- Claude Code, OpenAI Codex, Cursor, GitHub Copilot, and Gemini are supported for coding-agent setup. Agent-framework integrations include LangChain, LangGraph, LlamaIndex, CrewAI, AutoGen, OpenAI Agents SDK, Google ADK, Amazon Bedrock Agents, Semantic Kernel, Microsoft Agent Framework, Vercel AI SDK, and others. LLM-provider integrations include OpenAI, Anthropic, Amazon Bedrock, Google GenAI/Vertex AI, Azure-compatible providers via LiteLLM, Cohere, Groq, Mistral AI, Ollama, and Hugging Face. MC
- HQ
- San Francisco, CA, United States
- Founded
- —
- Profile ↗
// capital
Funding
- Round
- Series C
- Amount
- $70M
- Date
- Feb 20, 2025
- Leads
- Adams Street Partners
- Source
- Announcement ↗
- Investors
- Adams Street Partners, Archerman Capital, Battery Ventures, Brett Wilson, Datadog, Foundation Capital, Industry Ventures, M12, OMERS Ventures, PagerDuty, Sinewave Ventures, Swift Ventures, TCV, The House Fund, Trinity Ventures
// team
Hiring
- Employees
- 247
- Growth 3m / 6m
- +15.3% / +38.5%
- Open roles (sample)
- Account Executive
- Principal of Technical Content & Editorial
- Enterprise Account Executive, EMEA
- Enterprise Account Executive, APJ
- X mentions this week
- 24
- X handle
- @arizeai
src: Clay (LinkedIn headcount)
src: Clay (LinkedIn headcount)
src: Clay open jobs
src: X API public metrics 2026-11-04
// x.com
Top launch posts
// awaiting data
No posts tracked yet
This view fills in automatically once the weekly dataset is loaded.
// press
Recent news
// provenance
Sources
- Headcount
- Clay (LinkedIn headcount)
- Open jobs
- Clay open jobs
- Traffic
- Semrush
- Pricing
- https://arize.com/pricing/
- X metrics
- X API public metrics 2026-11-04
- X handle (homepage-verified)
- —
- x_buzz
- X API recent counts, 7 days to 2026-11-04
// faq
About Arize AI
What does Arize AI do?+
AI observability and evaluation (Phoenix)
How much has Arize AI raised most recently?+
Series C of $70M on Feb 20, 2025, led by Adams Street Partners.
How many employees does Arize AI have?+
About 247 (3-month growth +15.3%).
How is Arize AI priced?+
usage-based, starting at $50/month.