Venture firm in listed AI tools
Altimeter Capital
Altimeter Capital has backed 16 companies behind 34 listings on Anchor Terminal.
Companies on Anchor Terminal
Anthropic Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round, through Altimeter
- Claude API BB · Model APIs & inference
- Claude Agent SDK BB · Agent frameworks & SDKs
- Claude Code C · Agent harnesses
Source anthropic.com/news/…
Baseten Series E, January 2026, through Altimeter
Source baseten.co/blog/series-e
Anthropic, PBC Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round, through Altimeter
Source anthropic.com/news/…
ClickHouse Series B, October 2021, Series C extension, October 2025, led a round, through Altimeter
Source clickhouse.com/blog/…
Crusoe Series E, October 2025
Deel, Inc. Series D, October 2021
Source deel.com/blog/…
Cognition AI, Inc. Series E, September 2026, through Altimeter
- Devin C · Agent harnesses
Source cognition.com/blog/series-e
Elorian through Altimeter
Source elorian.ai
Glean Technologies, Inc. Series E, September 2024, Series F, June 2025, led a round, through Altimeter
Source glean.com/press/…
OpenAI $6.6B round, October 2024, $40B round, March 2025
- GPT-Live B · Conversational voice agents
- gpt-oss-120b BB · Open-weight models
- gpt-oss-20b B · Open-weight models
- OpenAI Agents SDK AA · Agent frameworks & SDKs
- OpenAI API A · Model APIs & inference
- OpenAI Codex BB · Agent harnesses
- OpenAI Decisions API BB · Decision models
- Dots F · Personal assistants
- OpenAI embeddings BB · Embeddings & rerankers
- OpenAI Guardrails B · Guardrails & safety filters
- OpenAI Image API BB · Image generation
- OpenAI Moderation API BB · Guardrails & safety filters
- OpenAI Realtime API B · Conversational voice agents
- OpenAI Speech to Text BB · Speech-to-text
Inngest Series A, September 2025, led a round, through Altimeter
Source inngest.com/blog/…
LiveKit Incorporated Series A, June 2024, Series B, April 2025, Series C, January 2026, led a round, through Altimeter
Plaid Series D, April 2021, led a round
Source techcrunch.com/2021/04/07/…
Plaid Inc. Series D, April 2021, led a round
Source techcrunch.com/2021/04/07/…
Ramp Business Corporation Series C, August 2021, Funding round, March 2022, through Altimeter
Source ramp.com/blog/ramp-series-c
Workato
Source workato.com/about_us
Where they invest
Model APIs & inference 3 Agent harnesses 3 Decision models 3 Conversational voice agents 3 Agent frameworks & SDKs 2 GPU & serverless compute 2 Personal assistants 2 Open-weight models 2 Guardrails & safety filters 2 Databases & files 1 HR & employee operations 1 Company knowledge & data catalogues 1 Embeddings & rerankers 1 Image generation 1 Speech-to-text 1 Human approval & handoff 1 Phone calling & voice transport 1 Bank data & open banking 1 Identity & business verification 1 Spend management & procurement 1 Workflow automation 1
Founders they backed
- Dario Amodei Anthropic
- Daniela Amodei Anthropic
- Tom Brown Anthropic
- Jack Clark Anthropic
- Jared Kaplan Anthropic
- Sam McCandlish Anthropic
- Chris Olah Anthropic
- Tuhin Srivastava Baseten
- Amir Haghighat Baseten
- Phil Howes Baseten
- Pankaj Gupta Baseten
- Karan Ahuja Anthropic, PBC
- Aaron Katz ClickHouse
- Alexey Milovidov ClickHouse
- Yury Izrailevsky ClickHouse
- Alex Bouaziz Deel, Inc.
- Shuo Wang Deel, Inc.
- Scott Wu Cognition AI, Inc.
- Steven Hao Cognition AI, Inc.
- Walden Yan Cognition AI, Inc.
- Andrew Dai Elorian
- Yinfei Yang Elorian
- Seth Neel Elorian
- Arvind Jain Glean Technologies, Inc.
- T.R. Vishwanath Glean Technologies, Inc.
- Tony Gentilcore Glean Technologies, Inc.
- Sam Altman OpenAI and Stripe, OpenAI
- Elon Musk OpenAI and Stripe, OpenAI
- Greg Brockman OpenAI and Stripe, OpenAI
- Ilya Sutskever OpenAI and Stripe, OpenAI
- John Schulman OpenAI and Stripe, OpenAI
- Wojciech Zaremba OpenAI and Stripe, OpenAI
- Trevor Blackwell OpenAI and Stripe, OpenAI
- Vicki Cheung OpenAI and Stripe, OpenAI
- Andrej Karpathy OpenAI and Stripe, OpenAI
- Durk Kingma OpenAI and Stripe, OpenAI
- Pamela Vagata OpenAI and Stripe, OpenAI
- Russ d’Sa LiveKit Incorporated
- David Zhao LiveKit Incorporated
- Zach Perret Plaid
- William Hockey Plaid
Questions
Which AI tools has Altimeter Capital invested in?
Anchor Terminal lists Anthropic, Baseten, Anthropic, PBC, ClickHouse, Crusoe, Deel, Inc., Cognition AI, Inc., Elorian, Glean Technologies, Inc., OpenAI, Inngest, LiveKit Incorporated, Plaid, Plaid Inc., Ramp Business Corporation and Workato backed by Altimeter Capital.
How are Altimeter Capital's companies graded?
On Anchor Terminal's benchmark, Claude API (BB, 77.3), Claude Agent SDK (BB, 70.1), Claude Code (C, 59.9), Baseten (B, 66.7), elephant-1 (D, 47.6), mammoth-1 (D, 47.7), Claude Duet (F, 17.9), ClickHouse MCP Server (B, 64.6), Crusoe Cloud (B, 63.4), Deel (B, 69.1), Devin (C, 55.7), Glimpse (D, 49), Glean (B, 69.9), GPT-Live (B, 66.9), gpt-oss-120b (BB, 70.2), gpt-oss-20b (B, 69.9), OpenAI Agents SDK (AA, 86.2), OpenAI API (A, 82.9), OpenAI Codex (BB, 73.5), OpenAI Decisions API (BB, 73.1), Dots (F, 28.8), OpenAI embeddings (BB, 72.2), OpenAI Guardrails (B, 69.5), OpenAI Image API (BB, 72.4), OpenAI Moderation API (BB, 71.4), OpenAI Realtime API (B, 63.4), OpenAI Speech to Text (BB, 72.6), Inngest (B, 66.1), LiveKit Agents (BB, 72.5), LiveKit Telephony (B, 67.6), Plaid (B, 69.8), Plaid Identity Verification (B, 67.1), Ramp (C, 57.3) and Workato API + MCP (C, 58).
Investors are named from the companies' own announcements, the investors' own pages, Y Combinator's company pages, public filings and news reports of a round, each with its source and the date it was researched. An investor isn't a sign of quality, and nobody can pay to be listed or to change a grade. To correct something or have a page removed, write to privacy@anchorterminal.com.