S

Slack

Disclosed by 401 companies

• M

  Maxio

  Communication and collaboration

  United States

  “Slack” source · checked Oct 24, 2026

• M

  Mediafly

  Internal communications with webhooks to other subprocessors

  “Slack | Internal communications with webhooks to other subprocessors” source · checked Oct 24, 2026

• M

  Meilisearch

  Internal communication

  United States

  “Slack” source · checked Oct 24, 2026

• M

  Messente

  Customer communication, team communication

  United States

  “Slack Technologies LLC • Customer Communication, Team Communication” source · checked Oct 24, 2026

• M

  Metaplane

  Messaging services

  United States

  “Slack Technologies, LLC (Salesforce Inc.) Messaging services USA” source · checked Oct 24, 2026

• M

  Metoro

  Communication, collaboration and customer support

  United States

  “Slack Communication, collaboration and customer support” source · checked Oct 24, 2026

• M

  Mezmo

  Sales and customer support

  United States

  “Slack Sales and customer support USA” source · checked Oct 24, 2026

• M

  MineOS

  Dedicated Customer Service (Optional)

  United States

  “Salesforce (Slack) | Dedicated Customer Service (Optional)” source · checked Oct 24, 2026

• M

  Mixmax

  Support services

  United States

  “Slack | Support services | USA” source · checked Oct 24, 2026

• M

  Mo

  Internal communication and alerting platform

  United States

  “Slack” source · checked Oct 24, 2026

• M

  Modern Treasury

  Communications platform

  “Salesforce Inc. (Slack)” source · checked Oct 24, 2026

• M

  Morningscore

  Internal business communication

  United States

  “Slack Technologies LLC (Salesforce)” source · checked Oct 24, 2026

• M

  Multiplier

  Enterprise messaging app (internal communication)

  “Slack Technologies LLC|Enterprise messaging app (internal communication)” source · checked Oct 24, 2026

• M

  MX

  Client communication channels

  United States

  “Slack, Inc. | United States | Client communication channels” source · checked Oct 24, 2026

• N

  Nailted

  Internal communication / App integration

  United States

  “Slack | Internal communication / App integration” source · checked Oct 24, 2026

• N

  Navan

  Internal messaging and logging platform

  United States

  “Slack” source · checked Oct 24, 2026

• N

  Navattic

  Internal communication tool

  United States

  “Slack Processing Activity: Internal communication tool Location: United States” source · checked Oct 24, 2026

• N

  Nebius

  Customer communications; Customer support

  European Union

  “Slack Technologies, LLC” source · checked Oct 24, 2026

• N

  Nectar HR

  Internal company messaging service

  United States

  “Slack Technologies, Inc.” source · checked Oct 24, 2026

• N

  Neon

  Customer support

  United States

  “Slack Technologies, Inc.” source · checked Oct 24, 2026

• N

  NetBird

  Workspace productivity and collaboration

  “Slack” source · checked Oct 24, 2026

• N

  Novu

  Support for Customers communication

  “Slack” source · checked Oct 24, 2026

• N

  Nutshell

  Internal collaboration

  “Slack” source · checked Oct 24, 2026

• N

  Nylas

  Communication and collaboration

  United States

  “Slack | Name, email | Communication & Collaboration” source · checked Oct 24, 2026

• O

  Octopus Deploy

  Instant messaging and collaboration platform; notifications of customer interactions

  United States

  “Slack” source · checked Oct 24, 2026

• O

  OKRs Tool

  Customer-enabled integration for check-in notifications

  “Slack” source · checked Oct 24, 2026

• O

  Okta

  Messaging and collaboration

  United States

  “Slack Technologies, LLC” source · checked Oct 24, 2026

• O

  Omnisend

  Communication tool

  Ireland

  “Slack Technologies Limited Salesforce Tower, 60 R801, North Dock, Dublin, Ireland” source · checked Oct 24, 2026

• O

  Ontotext

  Instant Communication

  European Union

  “Slack” source · checked Oct 24, 2026

• O

  OpenSanctions

  Internal team communication; customer-paired channels for collaboration and support

  “Slack Technologies, LLC • Collaboration” source · checked Oct 24, 2026

• O

  OpenSesame

  Messaging

  United States

  “Slack | Messaging | USA” source · checked Oct 24, 2026

• O

  Optimizely

  Messaging platform for internal notifications

  “Slack | Messaging platform for internal notifications” source · checked Oct 24, 2026

• O

  Optro

  Business Facilitation / Internal Communications, and AI

  United States

  “Slack | Business Facilitation / Internal Communications, and AI | Optro Platform | US |” source · checked Oct 24, 2026

• O

  Ory

  Dedicated support channel and community workspace

  United States

  “Slack • Dedicated Support Channel and Community Workspace USA” source · checked Oct 24, 2026

• O

  Osano

  Collaboration Tool

  United States

  “Slack Technologies, Inc. | Collaboration Tool | United States” source · checked Oct 24, 2026

• O

  Oscilar

  Internal and external communication

  United States

  “Slack Internal and External Communication United States” source · checked Oct 24, 2026

• O

  Otter.ai

  Internal messaging platform for communications

  United States

  “Internal messaging platform for communications.” source · checked Oct 24, 2026

• O

  Outreach

  Internal communication tool

  United States

  “Slack | Internal communication tool” source · checked Oct 24, 2026

• O

  Oyster

  Internal Communications

  “Slack Technologies, LLC | Internal Communications” source · checked Oct 24, 2026

• P

  Palo Alto Networks

  Communication tool for Customer Success; Internal support collaboration

  United States

  “Slack Technologies, LLC” source · checked Oct 24, 2026

• P

  PandaDoc

  Messaging channel, including AI capabilities

  United States

  “Slack Technologies, LLC Messaging channel, including AI capabilities” source · checked Oct 24, 2026

• P

  Pantheon

  Purpose not stated

  United States

  “Slack Customer Subprocessor USA” source · checked Oct 24, 2026

• P

  Panther

  Chat and customer support

  United States

  “Slack” source · checked Oct 24, 2026

• P

  Papertrail

  Customer Support

  United States

  “Slack | Customer Support | Papertrail” source · checked Oct 24, 2026

• P

  Paragon

  Customer support and team communication (Customer Data)

  United States

  “Slack • Customer support and team communication” source · checked Oct 24, 2026

• P

  Passbolt

  Support and alerts

  “Slack Processor activities Support and alerts” source · checked Oct 24, 2026

• P

  Peaka

  Communication

  United States

  “Slack Communication Data location: United States” source · checked Oct 24, 2026

• P

  Percona

  Internal and customer communication

  United States

  “Percona uses Slack for internal communication and customer communication.” source · checked Oct 24, 2026

• P

  PerformYard

  Team communication

  United States

  “Slack | Team communication | United States” source · checked Oct 24, 2026

• P

  PhantomBuster

  Internal management

  United States

  “Slack” source · checked Oct 24, 2026