# Mayfield (slim)

> Mayfield's investments in AI tools on Anchor Terminal, Numeral Two, Inc., Orb, Inc., Sema4.ai, SambaNova Systems, Inc. and 1 more, with each listing's grade and the founders behind it.

- Full: https://www.anchorterminal.com/investors/mayfield/index.md (~950 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/investors/mayfield/index.json · canonical https://www.anchorterminal.com/investors/mayfield/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Venture firm.

Website: https://www.mayfield.com

## Companies on Anchor Terminal

- **Numeral Two, Inc.**, Series B, September 2025, Series C, September 2026, led a round
  - [Numeral](https://www.anchorterminal.com/tools/numeral.md), graded D, 49.6/100
  - Source: https://techcrunch.com/2025/09/18/numeral-raises-35m-to-automate-sales-tax-with-ai/
  - Source: https://www.numeral.com/blog/series-c
- **Orb, Inc.**, Series B, September 2024, led a round
  - [Orb](https://www.anchorterminal.com/tools/orb.md), graded B, 66.6/100
  - Source: https://www.withorb.com/blog/series-b
- **Sema4.ai**, $30.5M round, January 2024, through Mayfield Fund
  - [Robocorp](https://www.anchorterminal.com/tools/robocorp.md), graded B, 65.5/100
  - Source: https://siliconangle.com/2024/01/29/ai-startup-sema4-ai-led-former-cloudera-ceo-rob-bearden-raises-30-5m/
- **SambaNova Systems, Inc.**, Series E, February 2026
  - [SambaCloud](https://www.anchorterminal.com/tools/sambanova.md), graded B, 66.5/100
  - Source: https://sambanova.ai/press/sambanova-unveils-fastest-chip-for-agentic-ai-collaborates-with-intel-and-raises-350m
- **Voyage AI (MongoDB)**, Series A, October 2024, through Mayfield Fund
  - [Voyage AI embeddings and rerankers](https://www.anchorterminal.com/tools/voyage-ai.md), graded C, 58.8/100
  - Source: https://blog.voyageai.com/2024/10/03/series-a-funding/

## Where they invest

- Tax calculation & compliance, 1
- Payment & monetisation platforms, 1
- Desktop & mobile app control, 1
- Model APIs & inference, 1
- Embeddings & rerankers, 1

## Founders they backed

- [Sam Ross](https://www.anchorterminal.com/people/sam-ross/), Numeral Two, Inc.
- [Matt DuVall](https://www.anchorterminal.com/people/matt-duvall/), Numeral Two, Inc.
- [Kevin Liu](https://www.anchorterminal.com/people/kevin-liu-2/), Numeral Two, Inc.
- [Jake Moffatt](https://www.anchorterminal.com/people/jake-moffatt/), Numeral Two, Inc.
- [Alvaro Morales](https://www.anchorterminal.com/people/alvaro-morales/), Orb, Inc.
- [Kshitij Grover](https://www.anchorterminal.com/people/kshitij-grover/), Orb, Inc.
- [Rodrigo Liang](https://www.anchorterminal.com/people/rodrigo-liang/), SambaNova Systems, Inc.
- [Kunle Olukotun](https://www.anchorterminal.com/people/kunle-olukotun/), SambaNova Systems, Inc.
- [Christopher Ré](https://www.anchorterminal.com/people/christopher-re/), SambaNova Systems, Inc.

## Questions

### Which AI tools has Mayfield invested in?

Anchor Terminal lists Numeral Two, Inc., Orb, Inc., Sema4.ai, SambaNova Systems, Inc.

### How are Mayfield's companies graded?

On Anchor Terminal's benchmark, Numeral (D, 49.6), Orb (B, 66.6), Robocorp (B, 65.5), SambaCloud (B, 66.5) and Voyage AI embeddings and rerankers (C, 58.8).

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.