Slack

About Slack

Slack is a workplace software company and brand owned by Salesforce. The product grew out of an internal communication tool built by the team behind the game Glitch and was developed for broad release by Stewart Butterfield, Cal Henderson, Eric Costello and Serguei Mourachov. Slack's own current explainer dates the company to 2014. Salesforce completed its acquisition of Slack Technologies in July 2021, and Slack now identifies itself publicly as a Salesforce company. The ownership change is central to understanding Slack as a vendor. Slack is no longer an independent public software company, so buyers evaluating long-term vendor risk, financial backing or strategic direction should consider Salesforce as the parent organization. Salesforce has increasingly connected Slack with Customer 360, CRM records, Agentforce and other Salesforce data, while Slack continues to maintain its own product identity, developer ecosystem and customer-facing brand. Slack operates from San Francisco and publishes a business address at Salesforce Tower, 415 Mission Street, 3rd Floor, San Francisco, California 94105. The company's current legal and policy pages identify Slack Technologies as the operating organization and explicitly describe Slack as a Salesforce company. BrandLigo does not infer a current standalone Slack employee count because reliable current headcount is not consistently disclosed separately from Salesforce. Slack's corporate direction has changed materially from its early positioning as team chat. The company now describes the platform as an AI work environment where people, applications, data and AI agents can operate in the same conversational interface. Recent 2026 releases include a redesigned Slackbot positioned as a personal agent for work, AI-assisted Workflow Builder steps, enterprise search across connected systems, Salesforce channels, and new controls that let administrators manage access to AI-generated features. The company also continues to invest in Slack as an extensible software platform rather than a closed messaging service. Slack's developer organization maintains SDKs and APIs for JavaScript, Python, Java and other environments, and the Slack Marketplace connects the product with thousands of third-party applications. The commercial advantage of this model is that companies can bring existing systems into Slack rather than replace every application. The governance cost is that administrators may need to review app permissions, data access, retention, identity controls and vendor dependencies across a large integration footprint. Slack's business model is subscription based. Customers can begin with a free tier and move to paid plans based on collaboration history, AI capabilities, administration, security and enterprise requirements. Slack also uses what it calls fair billing for active members on paid workspaces. Because plan packaging has changed significantly since 2025, especially around AI and Salesforce features, procurement teams should rely on current plan documentation rather than older descriptions of Slack AI or Sales Elevate as permanent standalone add-ons. For enterprise buyers, Slack should be evaluated as both a collaboration product and part of the broader Salesforce ecosystem. Organizations already invested in Salesforce may benefit from tighter CRM and workflow connections. Organizations that prefer a vendor-neutral collaboration layer can still use Slack with Microsoft, Google, Atlassian, GitHub and many other systems, but should assess how much of their future workflow and AI strategy they want tied to Salesforce-controlled infrastructure. The most important company-level considerations are therefore parent-company strategy, long-term plan packaging, data governance, identity and compliance requirements, integration governance, and the degree of platform dependence created when messaging, automation, project coordination and AI-assisted knowledge access all converge in one work environment. Product-specific features and current seat prices are kept on the Slack product page rather than repeated in this corporate profile.

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S Slack 1 product