# Guillermo Rauch (slim)

> Guillermo Rauch's investments in AI tools on Anchor Terminal, Agentcard, Braintrust, Cal.com, Chroma and 18 more, with each listing's grade and the founders behind it.

- Full: https://www.anchorterminal.com/investors/guillermo-rauch/index.md (~2,600 tokens) · this version ~2,480 tokens · JSON https://www.anchorterminal.com/investors/guillermo-rauch/index.json · canonical https://www.anchorterminal.com/investors/guillermo-rauch/
- 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)

Angel investor.

## Companies on Anchor Terminal

- **Agentcard**
  - [Agentcard](https://www.anchorterminal.com/tools/agentcard.md), graded C, 56.8/100
  - Source: https://agentcard.com/about
- **Braintrust**, Series A, October 2024
  - [Braintrust API + MCP](https://www.anchorterminal.com/tools/braintrust.md), graded C, 61.1/100
  - Source: https://www.braintrust.dev/blog/announcing-series-a
- **Cal.com**, Seed
  - [Cal.com API v2 + MCP](https://www.anchorterminal.com/tools/cal-com.md), graded C, 57.2/100
  - Source: https://cal.com/blog/seed
- **Chroma**, Seed, April 2023
  - [Chroma API + MCP](https://www.anchorterminal.com/tools/chroma.md), graded E, 45.3/100
  - Source: https://www.trychroma.com/blog/seed
- **Extend**, Seed and Series A, June 2025
  - [Extend API + MCP](https://www.anchorterminal.com/tools/extend.md), graded B, 62.9/100
  - Source: https://www.extend.ai/resources/series-a
- **fal (Features & Labels, Inc.)**, Series A, September 2024
  - [fal image models](https://www.anchorterminal.com/tools/fal-image.md), graded B, 65.5/100
  - [fal music models](https://www.anchorterminal.com/tools/fal-music.md), graded B, 68.5/100
  - [fal video models](https://www.anchorterminal.com/tools/fal-video.md), graded B, 69.1/100
  - Source: https://blog.fal.ai/generative-media-needs-speed-fal-has-raised-23m-to-accelerate/
- **Honeycomb**
  - [Honeycomb MCP](https://www.anchorterminal.com/tools/honeycomb-mcp.md), graded C, 58.5/100
  - Source: https://www.aap.com.au/aapreleases/cision20230406ae63471/
- **Inngest**, Series A, September 2025
  - [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
  - [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
- **Perplexity**, Series B, January 2024
  - [SPACE](https://www.anchorterminal.com/tools/perplexity-space.md), graded C, 56.4/100
  - [pplx-decider](https://www.anchorterminal.com/tools/pplx-decider.md), graded B, 68.2/100
  - [pplx-decider-flash](https://www.anchorterminal.com/tools/pplx-decider-flash.md), graded B, 68/100
  - Source: https://www.perplexity.ai/hub/blog/perplexity-raises-series-b-funding-round
- **Railway Corporation**
  - [Railway MCP Server](https://www.anchorterminal.com/tools/railway-mcp-server.md), graded C, 56.7/100
  - Source: https://blog.railway.com/p/series-a
- **Replicate (Cloudflare)**, Series A, February 2023
  - [Replicate image models](https://www.anchorterminal.com/tools/replicate-image.md), graded D, 50.3/100
  - [MusicGen on Replicate](https://www.anchorterminal.com/tools/replicate-musicgen.md), graded C, 54.4/100
  - [Replicate video models](https://www.anchorterminal.com/tools/replicate-video.md), graded B, 62.2/100
  - Source: https://techcrunch.com/2023/02/21/replicate-wants-to-take-the-pain-out-of-running-and-hosting-ml-models/
- **Resend**, Seed, July 2023, Series A, December 2024
  - [Resend API + MCP](https://www.anchorterminal.com/tools/resend.md), graded BB, 77.1/100
  - Source: https://techcrunch.com/2023/07/18/developer-focused-email-platform-resend-raises-3m/
- **Runway**, Series C, December 2022
  - [Runway API](https://www.anchorterminal.com/tools/runway.md), graded C, 60.8/100
  - Source: https://runway.com/news/runway-raises-50-series-c
- **Strapi, Inc.**, Seed, October 2019
  - [Strapi](https://www.anchorterminal.com/tools/strapi.md), graded B, 65.7/100
  - Source: https://strapi.io/blog/announcing-strapi-4m-seed-funding-round
- **Supabase**, Series A, October 2021, Series D, April 2025
  - [Supabase API + MCP](https://www.anchorterminal.com/tools/supabase-mcp.md), graded BB, 75.6/100
  - Source: https://supabase.com/blog/supabase-series-a
- **Swell**
  - [Swell](https://www.anchorterminal.com/tools/swell.md), graded C, 55/100
  - Source: https://www.swell.is/about
- **tldraw**, Seed, November 2022
  - [tldraw SDK + MCP](https://www.anchorterminal.com/tools/tldraw.md), graded C, 60.8/100
  - Source: https://tldraw.dev/blog/announcing-tldraws-seed-round
- **Conway Research (maker of Underdog)**, First round, April 2026
  - [Underdog](https://www.anchorterminal.com/tools/underdog.md), graded F, 30.1/100
  - Source: https://underdog.ai/backers
- **Conway Research**, First round, April 2026
  - [Underdog Bark 3.0](https://www.anchorterminal.com/tools/underdog-bark-3.md), graded D, 48.2/100
  - Source: https://underdog.ai/backers
- **WorkOS**, Series B, June 2022
  - [WorkOS Pipes and Agents](https://www.anchorterminal.com/tools/workos-pipes.md), graded C, 59.9/100
  - Source: https://workos.com/blog/series-b
- **Zo Computer Company**
  - [Zo Computer](https://www.anchorterminal.com/tools/zo-computer.md), graded E, 43.2/100
  - Source: https://www.zo.computer/team

## Where they invest

- Video generation, 3
- Image generation, 2
- Music generation, 2
- Decision models, 2
- Agent wallets & spending controls, 1
- Agent observability & evals, 1
- Calendars & scheduling, 1
- Retrieval & vector search, 1
- Document parsing & extraction, 1
- Observability & incidents, 1
- Human approval & handoff, 1
- Conversational voice agents, 1
- Phone calling & voice transport, 1
- Code execution sandboxes, 1
- Cloud & infrastructure, 1
- Email delivery APIs, 1
- CMS & website publishing, 1
- Databases & files, 1
- Commerce & checkout, 1
- Diagramming, 1
- Local AI, 1
- Speech-to-text, 1
- Agent auth & delegated access, 1
- Personal assistants, 1

## Founders they backed

- [Karen Serfaty](https://www.anchorterminal.com/people/karen-serfaty/), Agentcard
- [Felipe Abello](https://www.anchorterminal.com/people/felipe-abello/), Agentcard
- [Jeff Huber](https://www.anchorterminal.com/people/jeff-huber/), Chroma
- [Anton Troynikov](https://www.anchorterminal.com/people/anton-troynikov/), Chroma
- [Kushal Byatnal](https://www.anchorterminal.com/people/kushal-byatnal/), Extend
- [Eli Badgio](https://www.anchorterminal.com/people/eli-badgio/), Extend
- [Burkay Gur](https://www.anchorterminal.com/people/burkay-gur/), fal (Features & Labels, Inc.)
- [Gorkem Yurtseven](https://www.anchorterminal.com/people/gorkem-yurtseven/), fal (Features & Labels, Inc.)
- [Charity Majors](https://www.anchorterminal.com/people/charity-majors/), Honeycomb
- [Russ d’Sa](https://www.anchorterminal.com/people/russ-d-sa/), LiveKit Incorporated
- [David Zhao](https://www.anchorterminal.com/people/david-zhao/), LiveKit Incorporated
- [Aravind Srinivas](https://www.anchorterminal.com/people/aravind-srinivas/), Perplexity
- [Denis Yarats](https://www.anchorterminal.com/people/denis-yarats/), Perplexity
- [Johnny Ho](https://www.anchorterminal.com/people/johnny-ho/), Perplexity
- [Andy Konwinski](https://www.anchorterminal.com/people/andy-konwinski/), Perplexity
- [Jake Cooper](https://www.anchorterminal.com/people/jake-cooper/), Railway Corporation
- [Ben Firshman](https://www.anchorterminal.com/people/ben-firshman/), Replicate, Replicate (Cloudflare)
- [Andreas Jansson](https://www.anchorterminal.com/people/andreas-jansson/), Replicate, Replicate (Cloudflare)
- [Zeno Rocha](https://www.anchorterminal.com/people/zeno-rocha/), Resend
- [Bu Kinoshita](https://www.anchorterminal.com/people/bu-kinoshita/), Resend
- [Paul Copplestone](https://www.anchorterminal.com/people/paul-copplestone/), Supabase
- [Ant Wilson](https://www.anchorterminal.com/people/ant-wilson/), Supabase
- [Sigil Wen](https://www.anchorterminal.com/people/sigil-wen/), Conway Research (maker of Underdog), Conway Research
- [Michael Grinich](https://www.anchorterminal.com/people/michael-grinich/), WorkOS
- [Rob Cheung](https://www.anchorterminal.com/people/rob-cheung/), Zo Computer Company
- [Ben Guo](https://www.anchorterminal.com/people/ben-guo/), Zo Computer Company

## Questions

### Which AI tools has Guillermo Rauch invested in?

Anchor Terminal lists Agentcard, Braintrust, Cal.com, Chroma, Extend, fal (Features & Labels, Inc.), Honeycomb, Inngest, LiveKit Incorporated, Perplexity, Railway Corporation, Replicate (Cloudflare), Resend, Runway, Strapi, Inc., Supabase, Swell, tldraw, Conway Research (maker of Underdog), Conway Research, WorkOS and Zo Computer Company backed by Guillermo Rauch.

### How are Guillermo Rauch's companies graded?

On Anchor Terminal's benchmark, Agentcard (C, 56.8), Braintrust API + MCP (C, 61.1), Cal.com API v2 + MCP (C, 57.2), Chroma API + MCP (E, 45.3), Extend API + MCP (B, 62.9), fal image models (B, 65.5), fal music models (B, 68.5), fal video models (B, 69.1), Honeycomb MCP (C, 58.5), Inngest (B, 66.1), LiveKit Agents (BB, 72.5), LiveKit Telephony (B, 67.6), SPACE (C, 56.4), pplx-decider (B, 68.2), pplx-decider-flash (B, 68), Railway MCP Server (C, 56.7), Replicate image models (D, 50.3), MusicGen on Replicate (C, 54.4), Replicate video models (B, 62.2), Resend API + MCP (BB, 77.1), Runway API (C, 60.8), Strapi (B, 65.7), Supabase API + MCP (BB, 75.6), Swell (C, 55), tldraw SDK + MCP (C, 60.8), Underdog (F, 30.1), Underdog Bark 3.0 (D, 48.2), WorkOS Pipes and Agents (C, 59.9) and Zo Computer (E, 43.2).

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.