Venture firm in listed AI tools
Addition
Addition has backed 11 companies behind 13 listings on Anchor Terminal.
Companies on Anchor Terminal
Airwallex Series G, December 2025, Series H, June 2026, led a round
Anthropic Series G, February 2026
- Claude API BB · Model APIs & inference
- Claude Agent SDK BB · Agent frameworks & SDKs
- Claude Code C · Agent harnesses
Source anthropic.com/news/…
Hugging Face (with Zhongguancun Academy and the Telethon Institute of Genetics and Medicine) Series C, May 2022
Source huggingface.co/blog/series-c
Anthropic, PBC Series G, February 2026
Source anthropic.com/news/…
Hugging Face, Inc. Series C, May 2022
Source huggingface.co/blog/series-c
Merge Series B, October 2022
Source merge.dev/blog/…
Merge API, Inc. Series B, October 2022
Source merge.dev/blog/…
Render Services, Inc. Series A, November 2021, Series B, June 2023, Series C, January 2025, Series C extension, February 2026, led a round
Hugging Face Series C, May 2022
Source huggingface.co/blog/series-c
Temporal Technologies Seed, Series A, October 2020, Series B, February 2022, Series B-Prime, February 2023, through Addition Ventures
Source temporal.io/news/…
TrueLayer Series D, April 2021, led a round
Source truelayer.com/newsroom/…
Where they invest
Open-weight models 2 Spend management & procurement 1 Model APIs & inference 1 Agent frameworks & SDKs 1 Agent harnesses 1 Personal assistants 1 GPU & serverless compute 1 Accounting & invoicing 1 Agent tool access 1 Cloud & infrastructure 1 Human approval & handoff 1 Bank data & open banking 1
Founders they backed
- Jack Zhang Airwallex
- Lucy Yueting Liu Airwallex
- Jacob Dai Airwallex
- Max L. Airwallex
- Ki Lok Wong Airwallex
- Dario Amodei Anthropic
- Daniela Amodei Anthropic
- Tom Brown Anthropic
- Jack Clark Anthropic
- Jared Kaplan Anthropic
- Sam McCandlish Anthropic
- Chris Olah Anthropic
- Clément Delangue Hugging Face (with Zhongguancun Academy and the Telethon Institute of Genetics and Medicine), Hugging Face, Inc., Hugging Face
- Julien Chaumond Hugging Face (with Zhongguancun Academy and the Telethon Institute of Genetics and Medicine), Hugging Face, Inc., Hugging Face
- Thomas Wolf Hugging Face (with Zhongguancun Academy and the Telethon Institute of Genetics and Medicine), Hugging Face, Inc., Hugging Face
- Karan Ahuja Anthropic, PBC
- Shensi Ding Merge, Merge API, Inc.
- Gil Feig Merge, Merge API, Inc.
- Anurag Goel Render Services, Inc.
- Samar Abbas Temporal Technologies
- Maxim Fateev Temporal Technologies
Questions
Which AI tools has Addition invested in?
Anchor Terminal lists Airwallex, Anthropic, Hugging Face (with Zhongguancun Academy and the Telethon Institute of Genetics and Medicine), Anthropic, PBC, Hugging Face, Inc., Merge, Merge API, Inc., Render Services, Inc., Hugging Face, Temporal Technologies and TrueLayer backed by Addition.
How are Addition's companies graded?
On Anchor Terminal's benchmark, Airwallex Spend and Issuing (B, 68.3), Claude API (BB, 77.3), Claude Agent SDK (BB, 70.1), Claude Code (C, 59.9), Carbon-X (C, 61), Claude Duet (F, 17.9), Hugging Face Inference Endpoints (B, 64.7), Merge Accounting API (BB, 70.2), Merge Agent Handler (B, 69.6), Render MCP Server (B, 63.6), SmolLM3-3B (C, 61), Temporal (A, 78.3) and TrueLayer (B, 62.2).
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.