Slack co-founder Stewart Butterfield said Slack sells transformation, not software
A resurfaced internal memo from Stewart Butterfield explains why he saw Slack as a way of changing how organisations work rather than a typical software product. TechRadar revisits the quote and Slack's journey from a game studio's internal tool to a Salesforce-owned platform.

Key takeaways
- Stewart Butterfield said Slack was selling organizational transformation, not a software product, in an internal memo later made public.
- Slack began as an internal tool at Tiny Speck, a video games company, before becoming its main product.
- Salesforce acquired Slack in a deal TechRadar values at 28 billion dollars, and the platform has kept adding AI features and integrations.
- Slack plans to put AI bots inside channels so that agents become part of everyday workplace communication.
In this article
The quote behind the story
TechRadar has highlighted a remark from Slack co-founder and former chief executive Stewart Butterfield: what the company was selling was not the software product but organizational transformation. The line comes from an internal memo written while the team was still known as Tiny Speck, which Butterfield later shared with a wider audience.
According to TechRadar, Butterfield argued that organisations buying Slack were really buying a new way of working. The change in how teams communicated would itself be the product, rather than any single application or feature.
The quote appears as part of TechRadar Pro's quote of the day series, which features reflections from well-known figures in the technology industry.
From a games studio to a workplace tool

Slack did not begin life as a communications product. Its parent company, Tiny Speck, was founded as a video games studio. The internal system the team built to manage its own workflows and conversations turned out to be the company's big break, TechRadar notes.
That origin shaped how the product was framed. Rather than positioning Slack as a chat app, Butterfield described it as a way to reduce information overload and relieve stress at work.
He also pointed to something more practical: the ability to search easily through an organisation's archive of past conversations. TechRadar describes that task as otherwise laborious and cumbersome.
Slack's place in the market today
Slack is now a widely used communications tool at small businesses and large enterprises alike, and it sits alongside rivals such as Microsoft Teams in the broader workplace software market, according to TechRadar.
Even after Salesforce acquired the company in a deal TechRadar values at 28 billion dollars, Slack has kept its own identity. The service has continued to add features, particularly around integrations with other tools and custom AI instructions.
Using MCP, a protocol for connecting software with external applications, Slack can link with outside services and let members work inside other tools without leaving the platform.
Where Slack is heading next
The transformation framing appears to be guiding the company's current direction. TechRadar reports that Slack has added deep research and code execution functions, along with what it calls big mode for people working on larger projects.
The team is also planning to deploy AI bots within Slack channels. The aim, according to the report, is to let software agents become part of the fabric of communication and organisation rather than separate helpers.
That would extend Butterfield's original idea: if the product is a new way of working, then automated agents working alongside people are a natural next step.
Why the quote still matters
Butterfield's words capture a broader idea in workplace software. The value of a tool often lies less in its features than in the habits and processes it encourages a team to adopt.
For buyers, the memo is a reminder to think about change management, not just licensing. A collaboration platform succeeds or fails depending on whether people actually change how they share information.
TechRadar's piece is a retrospective look at a founder's vision, published on 14 November 2026, rather than an announcement of new products. Readers wanting the full series can find it on the TechRadar Pro site.
Sources
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