Slack Buys Screenhero To Add Screen Sharing And Voice Chat To Its Work Messaging Platform
Slack, the enterprise collaboration service that has raised $180 million and proven to be a runaway success with 365,000 daily active users, has made another acquisition to add more functionality …
Context & Ripple Effects
In early 2015 Slack was still a fast-rising challenger — 365,000 daily active users on $180 million raised — buying the tiny Screenhero team to bolt real-time screen sharing and voice onto a product built around text channels. The purchase reads today as the first move in Slack's long conversion from chat app into an all-in-one work surface.
The payoff was slow: native screen sharing only reached Mac and Windows apps in 2017, two years post-deal, and by late that year the standalone Screenhero brand was retired entirely once collaborative markup shipped. What Slack actually bought was capability and people, not a product it kept running.
First-order effects
- Screenhero's team and technology move in-house, putting native voice chat and screen sharing on Slack's roadmap instead of leaving those sessions to third-party tools outside the app.
Second-order effects
- Slack's two-year build-out ended with the launch of native screen sharing and then the December shutdown of Screenhero itself after the collaborative editing and markup update — the classic absorb-and-retire acquisition pattern, with the acquired product cannibalized by its new owner.
Third-order effects
- Owning voice and screens natively helped Slack pitch itself as a complete collaboration hub, a claim that underpinned its later funding at a $7.1B-plus valuation, the 2021 launch of Huddles audio chat, and ultimately Salesforce's $27.7B acquisition — enterprise messaging consolidating into suites rather than point tools.
The trend: Workplace chat platforms are acquiring adjacent real-time capabilities — screens, voice, video — until the message stream becomes the container for all collaborative work.