Slack Technologies

Slack Technologies. It is a software as a service company best known for developing the Slack platform, a widely adopted collaborative software application for team communication and workflow. Founded in 2009 as an internal tool for a gaming startup, it evolved into a standalone company that became a central hub for workplace collaboration, integrating with numerous third-party applications. The company was acquired by Salesforce in 2021 for approximately $27.7 billion, operating as a subsidiary within the larger cloud computing ecosystem.

History

The origins of Slack Technologies trace back to Tiny Speck, a video game development company founded by Stewart Butterfield and Cal Henderson in 2009, which was working on a game called Glitch. To facilitate internal communication among their distributed team, they built a custom IRC-like tool. When Glitch was discontinued in 2012, the team pivoted, recognizing the greater potential of their internal communication platform. The Slack application was launched publicly in August 2013, quickly gaining traction within the technology startup community. Significant funding rounds from investors like Andreessen Horowitz and Social Capital fueled rapid growth, leading to a direct listing on the New York Stock Exchange in 2019 under the ticker symbol WORK. In July 2021, following increasing competition, the company agreed to be acquired by Salesforce in one of the largest software acquisitions in history, a deal completed later that year.

Features

The core Slack platform is organized around persistent chat rooms called channels, which can be public or private, dedicated to specific topics, projects, or teams. It supports direct messaging and group conversations, with robust features for sharing files, conducting voice over IP calls, and integrating emoji reactions. A defining characteristic is its extensive application programming interface which allows deep integration with thousands of external services like Google Drive, GitHub, Jira, Zoom Video Communications, and Salesforce itself, centralizing notifications and actions. Other key features include powerful search across conversations and files, end-to-end encryption for enhanced security, and workflow automation tools through Workflow Builder. The platform is accessible via web applications, desktop applications for macOS, Windows, and Linux, and mobile apps for iOS and Android.

Business model

Slack Technologies operates primarily on a freemium software as a service model. It offers a free tier with limited features, such as a searchable message history cap and a restricted number of integrations, which served as a key user acquisition strategy. The majority of its revenue is generated from paid subscription plans, including Slack Pro and Slack Business+, which offer unlimited message history, enhanced security controls, compliance exports, and dedicated support. Larger enterprise customers are served by Slack Enterprise Grid, which provides organization-wide administration, data loss prevention features, and guaranteed service-level agreements. Following its acquisition, its financials are reported within the broader Salesforce ecosystem, with its offerings often bundled or integrated with other Salesforce products like Sales Cloud and Tableau Software.

Acquisitions

To enhance its platform's capabilities, Slack Technologies pursued a strategy of strategic acquisitions prior to its own sale. Key purchases included Screenhero in 2015, a screen sharing and collaborative software service whose technology was integrated to improve Slack's voice and video call features. In 2018, it acquired Astro, a company specializing in email and calendar management, to build smarter email integration and a calendar bot. Other notable acquisitions included HipChat and Stride from Atlassian in 2018, primarily to migrate their user bases to Slack and reduce market fragmentation. The company also acquired startups like Roli and SoftBank-backed Skillset to bolster its search and people directory functionalities.

Competition

Slack Technologies faces intense competition in the collaborative software and unified communications market. Its most significant competitor is Microsoft with its Microsoft Teams platform, which is deeply bundled with the ubiquitous Microsoft 365 suite. Other major rivals include Zoom Video Communications, which expanded from video conferencing into persistent chat, and Google with its Google Workspace ecosystem including Google Chat. Legacy players like Cisco Systems (Webex), Facebook (Workplace by Facebook), and Atlassian (Confluence) also compete for market share. The broader competitive landscape includes specialized tools for project management like Asana and monday.com, as well as open-source alternatives like Mattermost, which appeal to organizations with specific security or customization requirements.

Category:American companies established in 2009 Category:Software companies based in San Francisco Category:Collaborative software