# Slack

> Slack's investments in AI tools on Anchor Terminal, 1Password, Courier, Guru Technologies, Inc., Tactivos, Inc. (d/b/a Mural) and 4 more, with each listing's grade and the founders behind it.

- Canonical: https://www.anchorterminal.com/investors/slack/
- Markdown: https://www.anchorterminal.com/investors/slack/index.md (~1,250 tokens)
- Slim: https://www.anchorterminal.com/investors/slack/index.min.md (~1,130 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/investors/slack/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

Corporate investor.

Website: https://slack.com

## Companies on Anchor Terminal

- **1Password**, Funding round, January 2022, through Slack Fund
  - [1Password service accounts, SDKs and Environments MCP](https://www.anchorterminal.com/tools/1password.md), graded BB, 71.8/100
  - Source: https://1password.com/blog/future-of-1password
- **Courier**, Series A, September 2020
  - [Courier](https://www.anchorterminal.com/tools/courier.md), graded BB, 70.6/100
  - Source: https://www.courier.com/blog/announcing-our-series-a
- **Guru Technologies, Inc.**, January 2017, Series C, April 2020
  - [Guru](https://www.anchorterminal.com/tools/guru.md), graded E, 45.3/100
  - Source: https://www.getguru.com/blog/announcing-our-new-release-and-slack-investment
- **Tactivos, Inc. (d/b/a Mural)**, Series B, August 2020, through Slack Fund
  - [Mural MCP](https://www.anchorterminal.com/tools/mural-mcp.md), graded E, 42/100
  - Source: https://www.mural.co/press-releases/series-b
- **Nylas**, Series B, June 2020, Series C, June 2021, through Slack Fund
  - [Nylas Calendar and Scheduler API](https://www.anchorterminal.com/tools/nylas-calendar.md), graded BB, 71.1/100
  - [Nylas Email API](https://www.anchorterminal.com/tools/nylas-email.md), graded A, 79.1/100
  - Source: https://www.nylas.com/blog/pr/nylas-raises-25m-to-fuel-innovation-in-communication-apis/
- **Nylas, Inc.**, Series B, June 2020, Series C, June 2021, through Slack Fund
  - [Nylas Notetaker API](https://www.anchorterminal.com/tools/nylas-notetaker.md), graded BB, 71.8/100
  - Source: https://www.nylas.com/blog/pr/nylas-raises-25m-to-fuel-innovation-in-communication-apis/
- **Daily**, through Slack Fund
  - [Pipecat](https://www.anchorterminal.com/tools/pipecat.md), graded B, 69.1/100
  - [Pipecat PhoneLLM](https://www.anchorterminal.com/tools/pipecat-phonellm.md), graded C, 59/100
  - Source: https://www.daily.co/blog/daily-announces-a-15m-series-a-led-by-lachy-groom/
- **Sentry**
  - [Sentry MCP](https://www.anchorterminal.com/tools/sentry-mcp.md), graded BB, 70.2/100
  - Source: https://sentry.io/about/

## Where they invest

- Conversational voice agents, 2
- Secrets & credential vaults, 1
- Notifications, 1
- Company knowledge & data catalogues, 1
- Diagramming, 1
- Calendars & scheduling, 1
- Mailbox access, 1
- Meeting capture & meeting infrastructure, 1
- Observability & incidents, 1

## Founders they backed

- [Sara Teare](https://www.anchorterminal.com/people/sara-teare/), 1Password
- [Dave Teare](https://www.anchorterminal.com/people/dave-teare/), 1Password
- [Roustem Karimov](https://www.anchorterminal.com/people/roustem-karimov/), 1Password
- [Natalia Karimov](https://www.anchorterminal.com/people/natalia-karimov/), 1Password
- [Troy Goode](https://www.anchorterminal.com/people/troy-goode/), Courier
- [Rick Nucci](https://www.anchorterminal.com/people/rick-nucci/), Guru Technologies, Inc.
- [Mitch Stewart](https://www.anchorterminal.com/people/mitch-stewart/), Guru Technologies, Inc.
- [Christine Spang](https://www.anchorterminal.com/people/christine-spang/), Nylas, Nylas, Inc.
- [Kwindla Hultman Kramer](https://www.anchorterminal.com/people/kwindla-hultman-kramer/), Daily
- [David Cramer](https://www.anchorterminal.com/people/david-cramer/), Sentry
- [Chris Jennings](https://www.anchorterminal.com/people/chris-jennings/), Sentry

## Questions

### Which AI tools has Slack invested in?

Anchor Terminal lists 1Password, Courier, Guru Technologies, Inc., Tactivos, Inc. (d/b/a Mural), Nylas, Nylas, Inc., Daily and Sentry backed by Slack.

### How are Slack's companies graded?

On Anchor Terminal's benchmark, 1Password service accounts, SDKs and Environments MCP (BB, 71.8), Courier (BB, 70.6), Guru (E, 45.3), Mural MCP (E, 42), Nylas Calendar and Scheduler API (BB, 71.1), Nylas Email API (A, 79.1), Nylas Notetaker API (BB, 71.8), Pipecat (B, 69.1), Pipecat PhoneLLM (C, 59) and Sentry MCP (BB, 70.2).

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. 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.

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp