# Altimeter Capital > Altimeter Capital's investments in AI tools on Anchor Terminal, Anthropic, Baseten, Anthropic, PBC, ClickHouse and 12 more, with each listing's grade and the founders behind it. - Canonical: https://www.anchorterminal.com/investors/altimeter-capital/ - Markdown: https://www.anchorterminal.com/investors/altimeter-capital/index.md (~3,100 tokens) - Slim: https://www.anchorterminal.com/investors/altimeter-capital/index.min.md (~2,980 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/investors/altimeter-capital/index.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key) - Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data) - Updated: 2026-10-28 Venture firm. Website: https://www.altimeter.com ## Companies on Anchor Terminal - **Anthropic**, Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round, through Altimeter - [Claude API](https://www.anchorterminal.com/tools/anthropic-api.md), graded BB, 77.3/100 - [Claude Agent SDK](https://www.anchorterminal.com/tools/claude-agent-sdk.md), graded BB, 70.1/100 - [Claude Code](https://www.anchorterminal.com/tools/claude-code.md), graded C, 59.9/100 - Source: https://www.anthropic.com/news/anthropic-raises-series-f-at-usd183b-post-money-valuation - **Baseten**, Series E, January 2026, through Altimeter - [Baseten](https://www.anchorterminal.com/tools/baseten.md), graded B, 66.7/100 - [elephant-1](https://www.anchorterminal.com/tools/elephant-1.md), graded D, 47.6/100 - [mammoth-1](https://www.anchorterminal.com/tools/mammoth-1.md), graded D, 47.7/100 - Source: https://www.baseten.co/blog/series-e/ - **Anthropic, PBC**, Series F, September 2025, Series G, February 2026, Series H, May 2026, led a round, through Altimeter - [Claude Duet](https://www.anchorterminal.com/tools/claude-duet.md), graded F, 17.9/100 - Source: https://www.anthropic.com/news/anthropic-raises-series-f-at-usd183b-post-money-valuation - **ClickHouse**, Series B, October 2021, Series C extension, October 2025, led a round, through Altimeter - [ClickHouse MCP Server](https://www.anchorterminal.com/tools/clickhouse-mcp-server.md), graded B, 64.6/100 - Source: https://clickhouse.com/blog/click-house-raises-a-250m-series-b-at-a-2b-valuationand-we-are-hiring - **Crusoe**, Series E, October 2025 - [Crusoe Cloud](https://www.anchorterminal.com/tools/crusoe-cloud.md), graded B, 63.4/100 - Source: https://www.crusoe.ai/resources/newsroom/crusoe-announces-series-e-funding - **Deel, Inc.**, Series D, October 2021 - [Deel](https://www.anchorterminal.com/tools/deel.md), graded B, 69.1/100 - Source: https://www.deel.com/blog/weve-raised-our-series-d/ - **Cognition AI, Inc.**, Series E, September 2026, through Altimeter - [Devin](https://www.anchorterminal.com/tools/devin.md), graded C, 55.7/100 - Source: https://cognition.com/blog/series-e - **Elorian**, through Altimeter - [Glimpse](https://www.anchorterminal.com/tools/elorian-glimpse.md), graded D, 49/100 - Source: https://elorian.ai/ - **Glean Technologies, Inc.**, Series E, September 2024, Series F, June 2025, led a round, through Altimeter - [Glean](https://www.anchorterminal.com/tools/glean.md), graded B, 69.9/100 - Source: https://www.glean.com/press/glean-announces-over-260-million-series-e-and-next-generation-prompting-as-it-brings-work-ai-to-the-enterprise - **OpenAI**, $6.6B round, October 2024, $40B round, March 2025 - [GPT-Live](https://www.anchorterminal.com/tools/gpt-live.md), graded B, 66.9/100 - [gpt-oss-120b](https://www.anchorterminal.com/tools/gpt-oss-120b.md), graded BB, 70.2/100 - [gpt-oss-20b](https://www.anchorterminal.com/tools/gpt-oss-20b.md), graded B, 69.9/100 - [OpenAI Agents SDK](https://www.anchorterminal.com/tools/openai-agents-sdk.md), graded AA, 86.2/100 - [OpenAI API](https://www.anchorterminal.com/tools/openai-api.md), graded A, 82.9/100 - [OpenAI Codex](https://www.anchorterminal.com/tools/openai-codex.md), graded BB, 73.5/100 - [OpenAI Decisions API](https://www.anchorterminal.com/tools/openai-decisions-api.md), graded BB, 73.1/100 - [Dots](https://www.anchorterminal.com/tools/openai-dots.md), graded F, 28.8/100 - [OpenAI embeddings](https://www.anchorterminal.com/tools/openai-embeddings.md), graded BB, 72.2/100 - [OpenAI Guardrails](https://www.anchorterminal.com/tools/openai-guardrails.md), graded B, 69.5/100 - [OpenAI Image API](https://www.anchorterminal.com/tools/openai-image-api.md), graded BB, 72.4/100 - [OpenAI Moderation API](https://www.anchorterminal.com/tools/openai-moderation.md), graded BB, 71.4/100 - [OpenAI Realtime API](https://www.anchorterminal.com/tools/openai-realtime.md), graded B, 63.4/100 - [OpenAI Speech to Text](https://www.anchorterminal.com/tools/openai-speech-to-text.md), graded BB, 72.6/100 - Source: https://www.nbcnewyork.com/news/business/money-report/openai-closes-40-billion-funding-round-largest-private-tech-deal-on-record/6206861/ - **Inngest**, Series A, September 2025, led a round, through Altimeter - [Inngest](https://www.anchorterminal.com/tools/inngest.md), graded B, 66.1/100 - Source: https://www.inngest.com/blog/announcing-inngest-series-a - **LiveKit Incorporated**, Series A, June 2024, Series B, April 2025, Series C, January 2026, led a round, through Altimeter - [LiveKit Agents](https://www.anchorterminal.com/tools/livekit-agents.md), graded BB, 72.5/100 - [LiveKit Telephony](https://www.anchorterminal.com/tools/livekit-telephony.md), graded B, 67.6/100 - Source: https://livekit.com/blog/livekit-series-a - **Plaid**, Series D, April 2021, led a round - [Plaid](https://www.anchorterminal.com/tools/plaid.md), graded B, 69.8/100 - Source: https://techcrunch.com/2021/04/07/plaid-raises-425m-series-d-from-altimeter-as-it-charts-a-post-visa-future/ - **Plaid Inc.**, Series D, April 2021, led a round - [Plaid Identity Verification](https://www.anchorterminal.com/tools/plaid-identity-verification.md), graded B, 67.1/100 - Source: https://techcrunch.com/2021/04/07/plaid-raises-425m-series-d-from-altimeter-as-it-charts-a-post-visa-future/ - **Ramp Business Corporation**, Series C, August 2021, Funding round, March 2022, through Altimeter - [Ramp](https://www.anchorterminal.com/tools/ramp.md), graded C, 57.3/100 - Source: https://ramp.com/blog/ramp-series-c - **Workato** - [Workato API + MCP](https://www.anchorterminal.com/tools/workato.md), graded C, 58/100 - Source: https://www.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](https://www.anchorterminal.com/people/dario-amodei/), Anthropic - [Daniela Amodei](https://www.anchorterminal.com/people/daniela-amodei/), Anthropic - [Tom Brown](https://www.anchorterminal.com/people/tom-brown/), Anthropic - [Jack Clark](https://www.anchorterminal.com/people/jack-clark/), Anthropic - [Jared Kaplan](https://www.anchorterminal.com/people/jared-kaplan/), Anthropic - [Sam McCandlish](https://www.anchorterminal.com/people/sam-mccandlish/), Anthropic - [Chris Olah](https://www.anchorterminal.com/people/chris-olah/), Anthropic - [Tuhin Srivastava](https://www.anchorterminal.com/people/tuhin-srivastava/), Baseten - [Amir Haghighat](https://www.anchorterminal.com/people/amir-haghighat/), Baseten - [Phil Howes](https://www.anchorterminal.com/people/phil-howes/), Baseten - [Pankaj Gupta](https://www.anchorterminal.com/people/pankaj-gupta/), Baseten - [Karan Ahuja](https://www.anchorterminal.com/people/karan-ahuja/), Anthropic, PBC - [Aaron Katz](https://www.anchorterminal.com/people/aaron-katz/), ClickHouse - [Alexey Milovidov](https://www.anchorterminal.com/people/alexey-milovidov/), ClickHouse - [Yury Izrailevsky](https://www.anchorterminal.com/people/yury-izrailevsky/), ClickHouse - [Alex Bouaziz](https://www.anchorterminal.com/people/alex-bouaziz/), Deel, Inc. - [Shuo Wang](https://www.anchorterminal.com/people/shuo-wang/), Deel, Inc. - [Scott Wu](https://www.anchorterminal.com/people/scott-wu/), Cognition AI, Inc. - [Steven Hao](https://www.anchorterminal.com/people/steven-hao/), Cognition AI, Inc. - [Walden Yan](https://www.anchorterminal.com/people/walden-yan/), Cognition AI, Inc. - [Andrew Dai](https://www.anchorterminal.com/people/andrew-dai/), Elorian - [Yinfei Yang](https://www.anchorterminal.com/people/yinfei-yang/), Elorian - [Seth Neel](https://www.anchorterminal.com/people/seth-neel/), Elorian - [Arvind Jain](https://www.anchorterminal.com/people/arvind-jain/), Glean Technologies, Inc. - [T.R. Vishwanath](https://www.anchorterminal.com/people/t-r-vishwanath/), Glean Technologies, Inc. - [Tony Gentilcore](https://www.anchorterminal.com/people/tony-gentilcore/), Glean Technologies, Inc. - [Sam Altman](https://www.anchorterminal.com/people/sam-altman/), OpenAI and Stripe, OpenAI - [Elon Musk](https://www.anchorterminal.com/people/elon-musk/), OpenAI and Stripe, OpenAI - [Greg Brockman](https://www.anchorterminal.com/people/greg-brockman/), OpenAI and Stripe, OpenAI - [Ilya Sutskever](https://www.anchorterminal.com/people/ilya-sutskever/), OpenAI and Stripe, OpenAI - [John Schulman](https://www.anchorterminal.com/people/john-schulman/), OpenAI and Stripe, OpenAI - [Wojciech Zaremba](https://www.anchorterminal.com/people/wojciech-zaremba/), OpenAI and Stripe, OpenAI - [Trevor Blackwell](https://www.anchorterminal.com/people/trevor-blackwell/), OpenAI and Stripe, OpenAI - [Vicki Cheung](https://www.anchorterminal.com/people/vicki-cheung/), OpenAI and Stripe, OpenAI - [Andrej Karpathy](https://www.anchorterminal.com/people/andrej-karpathy/), OpenAI and Stripe, OpenAI - [Durk Kingma](https://www.anchorterminal.com/people/durk-kingma/), OpenAI and Stripe, OpenAI - [Pamela Vagata](https://www.anchorterminal.com/people/pamela-vagata/), OpenAI and Stripe, OpenAI - [Russ d’Sa](https://www.anchorterminal.com/people/russ-d-sa/), LiveKit Incorporated - [David Zhao](https://www.anchorterminal.com/people/david-zhao/), LiveKit Incorporated - [Zach Perret](https://www.anchorterminal.com/people/zach-perret/), Plaid - [William Hockey](https://www.anchorterminal.com/people/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. 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. --- Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp