S

Slack

Application

Team messaging platform, owned by Salesforce but sold under its own brand and domain, whose Slackbot is a personal AI agent that searches conversations, files and connected tools.

Acquired by Salesforce

Total funding—

Valuation—

Employees2,545

Founded2009

HeadquartersSan Francisco, USA

StatusPrivate

Products

Reviewed against the official catalog on 22 Sep 2026. Slack's own AI feature set: the 'Guide to AI features in Slack' help article (conversation summaries, huddle notes, search filters, search answers, recaps, file summaries, translations, workflow automation, message explanations, canvas generation, Slackbot, enterprise search) cross-checked against slack.com/features/ai, slack.com/features/slackbot and slack.com/pricing's plan-by-plan feature list. Scoped to AI features, which is this dataset's whole domain for a messaging platform; not a review of Slack's non-AI feature catalogue.

• Slack Application Sold on its own

  Team messaging platform for channels, direct messages and huddles, sold in Free, Pro, Business+ and Enterprise+ tiers.

Inside Slack

• Slack AI Application Included with the parent

  Bundle of AI features built into Slack -- channel and thread summaries, daily recaps, AI search answers, huddle notes, translation and AI-assisted workflows -- unlocked from Pro through Enterprise+ (none of it ships on Free), distinct from the standalone Slackbot agent.

• Slackbot AI agent Included with the parent

  Personal AI agent built into Slack that answers from a user's messages, files and channels, drafts content, schedules meetings and takes actions, within existing permissions.

Similar products 66

No sourced competitor yet: no filing, vendor document or measured-market report read so far names a rival for this company, so none is asserted. The companies below are the closest by what their products do.

How this list is ranked ↗

FFirefliesPrivateSlack AI and Fireflies.ai meeting assistant do comparable work on meeting notes; both also serve buyers who need to turn a meeting into decisions and owners; scale not recorded for either.1 of 6 capabilitiesShared product typeCompareMmonday.comPublic · $3.9BSlack AI and monday Notetaker do comparable work on meeting notes; both also serve buyers who need to turn a meeting into decisions and owners; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareFFathomAcquiredSlack AI and Fathom do comparable work on meeting notes and summarization; both also serve buyers who need to turn a meeting into decisions and owners; Slack's scale not recorded; Fathom is acquired, with no independent scale.2 of 6 capabilitiesShared product typeCompareRRingCentralPublic · $2.3BSlack AI and AI Conversation Expert (ACE) do comparable work on summarization; both also serve buyers who need to turn a meeting into decisions and owners; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareTBThe Browser CompanyPrivateSlack AI and Dia do comparable work on meeting notes and summarization; scale not recorded for either.4 of 6 capabilitiesShared product typeCompareSSmartsheetPrivate · $8.4BSlack AI and Smartsheet AI do comparable work on summarization and translation; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareNNotionPrivate · $11BSlack AI and Notion AI do comparable work on meeting notes and summarization; Slack's scale not recorded.5 of 6 capabilitiesShared product typeCompareOOtter.aiPrivateSlack AI and OtterPilot do comparable work on meeting notes; both also serve buyers who need to turn a meeting into decisions and owners; scale not recorded for either.1 of 6 capabilitiesShared product typeCompareCClickUpPrivate · $4BSlack AI and Brain² do comparable work on meeting notes and summarization; Slack's scale not recorded; ships agent platform rather than the same layer.5 of 6 capabilitiesDifferent layerCompareWFWispr FlowPrivate · $2BSlack AI and Wispr Flow Notetaker do comparable work on meeting notes and summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareCCluelyPrivate · $15M raisedSlack AI and Cluely do comparable work on meeting notes and summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareGGlean (Glean Technologies)Private · $7.2BSlack AI and Glean Assistant do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareLLinagoraPrivateSlack AI and LinTO do comparable work on meeting notes and summarization; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareGGranolaPrivate · $1.5BSlack AI and Granola Chat do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareZZoomPublic · $28.7BSlack AI and Zoom Paper do comparable work on summarization and translation; Slack's scale not recorded.6 of 6 capabilitiesShared product typeCompareKKrispPrivateSlack AI and Krisp Voice Translation do comparable work on translation; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareDDeepLPrivate · $2BSlack AI and DeepL Customization Hub do comparable work on translation; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareCCanvaPrivate · $42BSlack AI and Translate do comparable work on translation; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareAApplePublic · $4.6TSlack AI and Apple Intelligence do comparable work on summarization and translation; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareFFreshworksPublic · $3.4BSlack AI and Freddy AI Copilot do comparable work on summarization and translation; Slack's scale not recorded.5 of 6 capabilitiesShared product typeCompareMMoveworksAcquiredSlackbot and Moveworks Quick GPT both serve buyers who need to use an everyday AI assistant; Slack's scale not recorded; Moveworks is acquired, with no independent scale.4 of 6 capabilitiesShared product typeCompareMMicrosoftPublic · $3.7TSlackbot and Microsoft Copilot do comparable work on summarization; both also serve buyers who need to use an everyday AI assistant; Slack's scale not recorded.6 of 6 capabilitiesShared product typeCompareEElevenLabsPrivate · $11BSlack AI and Dubbing do comparable work on translation; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareUUnbabelAcquired ($91.2M deal)Slack AI and Unbabel MT Score do comparable work on translation; Slack's scale not recorded; Unbabel is acquired, with no independent scale.1 of 6 capabilitiesShared product typeComparePPerplexityPrivate · $20.4BSlackbot and Perplexity do comparable work on summarization; both also serve buyers who need to use an everyday AI assistant; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareGGenesysPrivateSlack AI and Genesys Cloud Copilot do comparable work on summarization and translation; scale not recorded for either.5 of 6 capabilitiesShared product typeCompareCConsensusPrivate · $45M raisedSlack AI and Consensus do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareSSuperhumanPrivateSlack AI and Grammarly do comparable work on summarization; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareBBoxPublic · $4.8BSlackbot and Box AI do comparable work on summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareDDropboxPublic · $7.8BSlack AI and Dropbox Dash do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareEElicitPrivate · $100MSlackbot and Elicit do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareNNiCEPublic · $6.5BSlackbot and Copilot for Agents do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareDDocusignPublic · $12.7BSlackbot and Docusign Iris AI Agents do comparable work on summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareHHubSpotPublic · $13BSlack AI and Breeze Assistant do comparable work on summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareBByteDancePrivateSlack AI and Doubao (豆包) do comparable work on translation; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareDDecagonPrivate · $4.5BSlack AI and Suggestions do comparable work on summarization; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareNNeuralGaragePrivate · $1.5M raisedSlack AI and SyncMonster do comparable work on translation; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareAAsanaPublic · $2.1BSlack AI and Dash do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareAAdobePublic · $115.9BSlack AI and Acrobat AI Assistant do comparable work on summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareAAtlassianPublic · $48.2BSlack AI and Loom AI do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareVSVeeva SystemsPublic · $45.5BSlackbot and Veeva Falcon do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareAAbridgePrivate · $5.3BSlack AI and Abridge do comparable work on summarization; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareAHAmbience HealthcarePrivate · $1.3BSlack AI and Ambience do comparable work on summarization; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareDDXPrivateSlackbot and DX AI do comparable work on summarization; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareIMInsilico MedicinePublic · $4.3BSlackbot and Science42: DORA do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareHHeyGenPrivate · $500MSlack AI and HeyGen Video Translator do comparable work on translation; Slack's scale not recorded.1 of 6 capabilitiesShared product typeCompareKKakaoPublic · $16BSlack AI and Kanana in KakaoTalk do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareIInception42PrivateSlack AI and Insight do comparable work on summarization; scale not recorded for either.3 of 6 capabilitiesShared product typeCompareMLMintplex LabsPrivateSlackbot and AnythingLLM both serve buyers who need to use an everyday AI assistant; scale not recorded for either.1 of 6 capabilitiesShared product typeCompareAAnthropicPrivate · $965BSlackbot and Claude Cowork both serve buyers who need to use an everyday AI assistant; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareLSLM StudioPrivateSlackbot and LM Studio Bionic both serve buyers who need to use an everyday AI assistant; scale not recorded for either.Shared product typeCompareUUniphorePrivate · $2.5BSlack AI and Sales Interaction Agent do comparable work on meeting notes and summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompareOOpenAIPrivate · $852BSlack AI and ChatGPT for Word do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareNCNAVER CloudPrivateSlack AI and CLOVA Note do comparable work on meeting notes and summarization; scale not recorded for either.5 of 6 capabilitiesShared product typeCompareAAlibabaPublic · $273.4BSlack AI and Qwen do comparable work on summarization and translation; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareAAlphabet (Google)Public · $4.2TSlack AI and Gemini Notebook do comparable work on summarization; Slack's scale not recorded.5 of 6 capabilitiesShared product typeCompareSASarvam AIPrivate · $275M raisedSlack AI and Sarvam Content Studio do comparable work on translation; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareLLightOnPublic · $29.6MSlackbot and LightOn Enterprise do comparable work on summarization; Slack's scale not recorded.3 of 6 capabilitiesShared product typeCompareZZ.ai (Zhipu AI)Public · $58.6BSlack AI and AMiner do comparable work on summarization; Slack's scale not recorded.5 of 6 capabilitiesShared product typeCompareAAAleph AlphaPrivate · $500M raisedSlack AI and PhariaAI do comparable work on summarization and translation; Slack's scale not recorded; ships model API and platform rather than the same layer.4 of 6 capabilitiesDifferent layerCompareMAMoonshot AIPrivate · $35BSlack AI and Kimi do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareMAMistral AIPrivate · $13.8BSlack AI and Mistral Vibe do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareSESamsung ElectronicsPublic · $1.2TSlack AI and Galaxy AI do comparable work on translation; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareDDeepSeekPrivate · $50BSlack AI and DeepSeek do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareCCiscoPublic · $433.3BSlack AI and AI Assistant for Webex Contact Center do comparable work on summarization; Slack's scale not recorded.2 of 6 capabilitiesShared product typeCompareTTencentPublic · $510.1BSlack AI and Tencent Yuanbao do comparable work on summarization; Slack's scale not recorded.4 of 6 capabilitiesShared product typeCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Checked — none published

Slack listed directly in 2019 and its FY2021 10-K states no total raised; no primary source found for a cumulative funding figure.

Valuation

Checked — none published

Wholly owned by Salesforce; no separate valuation. The 2021 deal price is not recorded here as a valuation.

Employees

Regulatory filing · 31 Jan 2021

Form 10-K: "As of January 31, 2021, we had 2,545 full-time employees." The last figure Slack published as a standalone filer; Salesforce does not report Slack headcount separately.

Founded

Regulatory filing · 4 Mar 2021

Slack Technologies, Inc. Form 10-K for FY ended 2021-01-31: incorporated in 2009 as Tiny Speck. Company founded 2009; the product launched later.

Description

Company disclosure · 21 Sep 2026

Slack's own About page, read 2026-09-21: "Slack was acquired by Salesforce in 2021" and footer "©2026 Slack Technologies, LLC, a Salesforce company." Recorded under this catalogue's Ruling E: separately branded and separately domained (slack.com), same shape as leonardo-ai under canva.

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