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Slack

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Read 397 Slack reviews and testimonials from customers, explore 173 case studies and customer success stories, and watch 32 customer videos to see why companies chose Slack as their Internal Communications Software

Slack is building the platform that connects teams with the apps, services, and resources they need to get work done. Launched in 2014, Slack is the fastest growing business application in history. Millions of people around the world use Slack to bring their teams together, make sense of their work, and drive their business forward.

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  • 397 Testimonials View
  • 173 Case Studies View
  • 32 Customer Videos View
Customer Rating Review Score based on 5456 reference ratings
4.8/5.0 (5456)
  • Fall 2025 Market Leader Internal Communications Software
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    Workplace is a collaborative platform run by Facebook. It is built on Facebook's powerful systems that keep more than a billion people's information safe. It connects everyone in your organization to turn ideas into action and get more done.

    Learn more about Workplace from Meta

397Testimonials

  • "Slack has cut through the organisation and allowed people with diverse backgrounds and skill sets to interact in a productive way that keeps everyone on the same page."

    Jed Poster Customer Communications Manager

  • "Our sellers love working out of one tool. With Slack, things move faster because everything they need is in one place."

    Kaitlyn McBride Senior Manager, Performance Product Management

  • "As a growing company, it’s a struggle at times to maintain consistent communication internally and with our global network - Slack has filled that hole."

    Maddie Saunders Global Planner
396 more testimonials currently locked

173 Case Studies

  • How SEEK uses Slack to scale its job-matching services worldwide

    Tania Dastres Senior Apple System Administrator

  • Delighting home cooks and uniting global teams with Slack

    Nuno Simaria Chief Technology Officer

  • Wayfair is right at home with Slack

    Taylor Keck Senior Engineer, Enterprise Solutions
172 more case studies currently locked

32 Customer Videos

  • Build lasting customer relationships with Slack Connect
    Play Video
    Jeanne DeWitt Grosser Head of Americas Revenue and Growth
  • Keeping global teams connected and productive with Slack
    Play Video
    Fred McAmis VP, Learning and Development
  • Designing the Future with Slack
    Play Video
    Amir Khan Design and Analysis Lead
31 more videos currently locked

Additional Slack Information & Resources

Read Slack Reviews, Testimonials & Customer References from 397 real Slack customers.

Browse Slack Case Studies, Customer Success Stories, & Customer References from 173 businesses that use Slack.

Watch Slack Customer Videos to learn why 32 businesses chose Slack.

FeaturedCustomers has 2,048,088+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.