Microsoft Teams vs Slack Business - Enterprise comparison

Why PeerSpot?

Microsoft and Slack are both solutions in the Enterprise Social Software category. Microsoft is ranked #2 with an average rating of 8.6, while Slack is ranked #1 with an average rating of 8.5. Microsoft holds a 6.8% mindshare in ESS, compared to Slack’s 9.8% mindshare. Additionally, 95% of Microsoft users are willing to recommend the solution, compared to 93% of Slack users who would recommend it.

Microsoft Teams

Read 181 Microsoft Teams reviews

10,840 Views
5,312 Comparison Views

95% willing to recommend

Slack Business - Enterprise

Read 83 Slack Business - Enterprise reviews

8,135 Views
6,996 Comparison Views

93% willing to recommend

Microsoft Teams

Slack Business - Enterprise

Comparison Buyer's Guide

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Executive SummaryUpdated on Feb 15, 2026

Slack Business and Microsoft Teams compete in the enterprise collaboration and communication software category. While both have their advantages, Microsoft Teams appears to have the upper hand due to its seamless integration within the Microsoft ecosystem, providing added value to businesses already utilizing Microsoft services.

Features: Slack Business offers essential team communication tools such as group chats and seamless cross-platform experiences. It provides numerous integrations, including IFTTT and Zapier, and productivity tools like Slackbot reminders and effective shared content management. On the other hand, Microsoft Teams delivers rich collaboration features with document management, integrated scheduling, and video conferencing. Its powerful integration with Office tools makes it ideal for extensive collaboration needs.

Room for Improvement: Slack can improve scalability, security, and bolster its video conferencing capabilities and Office 365 integrations. It also needs to refine its notification and file management systems. Microsoft Teams faces challenges with its resource-intensive nature and stability issues. Improvements could enhance its integration with other platforms, user interface, and AI capabilities for transcription and meeting summarization.

Ease of Deployment and Customer Service: Both Slack Business and Microsoft Teams support diverse deployment options, including public, private, and hybrid clouds. However, Microsoft has an edge with wider integration with on-premises infrastructure. Technical support is robust for both, though Slack's simplicity results in fewer complex issues, reducing the need for direct support interactions.

Pricing and ROI: Slack offers a free version with limited history access, while Microsoft Teams comes bundled with the Microsoft 365 suite, offering a cost-effective option for enterprises already using Microsoft services. Slack's pricing can be perceived as high due to its limited free tier and premium feature costs. Conversely, Teams is viewed as more economical, especially for those leveraging the full Microsoft ecosystem, offering a strong ROI by enhancing collaboration and efficiency.

To learn more, read our detailed Microsoft Teams vs. Slack Business - Enterprise Report (Updated: September 2026).

Buyer's Guide

Microsoft Teams vs. Slack Business - Enterprise

September 2026

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

ROI

Sentiment score

6.0

Microsoft Teams enhanced communication, saved commuting costs, and boosted productivity, despite varied opinions on its investment value.

Sentiment score

3.7

Slack Business boosts productivity and organization, achieving 40% ROI despite moderate satisfaction and desired pricing improvements over Gmail.

I have seen a return on investment from using Microsoft Teams.

Amar-Kumar

Technical Lead at a tech services company with 501-1,000 employees

I have seen a return on investment with Microsoft Teams, as it definitely increases productivity and saves time.

ShivKumar2

Sr. Quality Analyst at Appinventiv

When I switched to Microsoft Teams, it became faster for everyone in my organization, helping improve the quality of delivery, save time, and reduce costs, making my organization more competitive in the market.

Sameer Belagali

QA Lead at Trelleborg

For more quotes and insights, download the Microsoft Teams report

No quotes available

For more quotes and insights, download the Slack Business - Enterprise report

Customer Service

Sentiment score

6.3

Microsoft Teams support is reliable for large enterprises but sometimes slow for small businesses, with 24/7 and premium options available.

Sentiment score

5.8

Slack's support is praised for efficiency and effectiveness, with positive ratings despite minimal direct user interaction needed.

Microsoft Teams is one hundred percent stable.

Sameer Belagali

QA Lead at Trelleborg

Microsoft support is excellent, offering instantaneous assistance through either robo support or live personnel.

Arun Srivastav

CEO at Planfirma Technologies Private Limited

We have cases where it took more than six months to resolve very basic issues.

Anna Virtsan

IT Project Manager at UkrSibbank

For more quotes and insights, download the Microsoft Teams report

We tend to focus more on Workato for support, but internally we raise service requests with the infrastructure team for any issues related to Slack.

reviewer2723727

Integration Engineer

When I connected to Slack Business - Enterprise API, tutorials and documentation were available online.

Aleco Kapsuk

Da at hanasoft

If something was beyond their hands, then it would only be escalated to the external Slack team.

Akhil Viswam

Senior Consultant at a consultancy with 10,001+ employees

For more quotes and insights, download the Slack Business - Enterprise report

Scalability Issues

Sentiment score

7.8

Microsoft Teams efficiently supports large user volumes, integrates well with tools, and suits companies of all sizes despite channel limitations.

Sentiment score

7.2

Slack Enterprise is highly scalable, supporting both small and large teams, though the free version has limitations.

We have around thousands of employees in my project using it simultaneously and it is working smoothly.

Amar-Kumar

Technical Lead at a tech services company with 501-1,000 employees

Microsoft Teams is a scalable solution.

Rahul Thilak

Master in Cyber Security at Ganpat University

Microsoft Teams can be scalable for more than 1,000 people, and I have seen video conferences with 5,000 participants, so the scale is incredible.

Nikolay Bachvarov

Senior Software Engineer at Endava

For more quotes and insights, download the Microsoft Teams report

Slack is endlessly scalable.

DeanPark

Application Security Manager at Interact Intranet

Slack Business - Enterprise is a scalable product fitting for small businesses as well as enterprises, with no limitations on the number of users.

Aleco Kapsuk

Da at hanasoft

Slack is not as comprehensive as Microsoft Teams in terms of scheduling and hosting meetings.

Diksha Hirole

Data Engineer at BlazeClan Technologies

For more quotes and insights, download the Slack Business - Enterprise report

Stability Issues

Sentiment score

7.5

Microsoft Teams is highly rated for stability, with rare issues linked to connectivity and improvements noted in updates.

Sentiment score

7.8

Slack Business - Enterprise is stable and reliable, with minor issues and high user ratings for performance and communication.

I appreciate the ability of Microsoft Teams to control the quality of the call.

Anna Virtsan

IT Project Manager at UkrSibbank

The kind of issue is that it always asks for the password, and I think for Citrix or for a shared platform, it is not really easy to manage, and it is not stable.

AbderrahimTamim

IT Director at ATOS

In my experience, Microsoft Teams is stable.

Bolarinwa Opaleye

System Administrator at Interswitch

For more quotes and insights, download the Microsoft Teams report

It integrates with various systems, allowing us to manage site reliability, availability, and reliability.

DeanPark

Application Security Manager at Interact Intranet

Slack's stability is a perfect 10.

Awais Mehmood

Webflow Developer at Qureos

I do not see glitches, latency issues, or downtime.

Aleco Kapsuk

Da at hanasoft

For more quotes and insights, download the Slack Business - Enterprise report

Room For Improvement

Microsoft Teams needs better stability, memory use, AI integration, and smoother cross-platform functionality with enhanced file sharing and interface.

Slack Business requires enhancements in video, integration, notifications, organization, customization, security, AI, multimedia sharing, and scheduling.

AI capabilities should be integrated into Microsoft Teams to provide better transcript services and offer multiple language support.

Arun Srivastav

CEO at Planfirma Technologies Private Limited

The biggest issue with Microsoft Teams is switching identities, especially when communicating with external organizations.

reviewer2563299

Microsoft Practice Lead at a tech services company with 11-50 employees

Microsoft Teams could be improved through more synchronization with other platforms like Calendly and Gmail.

Daria Bolgar

Team Lead at a tech services company with 51-200 employees

For more quotes and insights, download the Microsoft Teams report

We can also improve the creation of channels, particularly in terms of privacy, security, flexibility, and the addition of members to newly created channels.

reviewer2723727

Integration Engineer

There are a lot of integrations and custom integrations available, but I believe there are opportunities to make those integrations much easier and faster, particularly for business or non-technical people.

Gaurab Patra

Co Founder at a tech consulting company with 11-50 employees

I would rate it a ten if it comes with some AI features, particularly using generative AI to produce summarization and other kinds of insights from communication in a more secure, data-secure way.

Akhil Viswam

Senior Consultant at a consultancy with 10,001+ employees

For more quotes and insights, download the Slack Business - Enterprise report

Setup Cost

Microsoft Teams' pricing is flexible and varies widely; it offers economical bundles but can be costly with advanced features.

Slack Business provides pricing from free to $20 per user, with paid options offering advanced features for larger teams.

Microsoft Teams is economical when purchased as part of an Office 365 bundle.

Arun Srivastav

CEO at Planfirma Technologies Private Limited

Microsoft Teams comes with Office 365 licenses like E3, but there are options for those who prefer not to pay for Teams by using alternative products like Slack.

reviewer2563299

Microsoft Practice Lead at a tech services company with 11-50 employees

Regarding the license, the Microsoft 365 license I am taking is quite expensive, and every year it goes higher.

Manikumar David

IT Manager at R K Khanna and Associates

For more quotes and insights, download the Microsoft Teams report

No quotes available

For more quotes and insights, download the Slack Business - Enterprise report

Valuable Features

Microsoft Teams enhances productivity and collaboration with AI features, seamless integrations, and user-friendly tools for global communication.

Slack Business - Enterprise excels with app integrations, customizable channels, and collaboration tools, surpassing competitors like Teams.

Teams offers the ability to record sessions and store them in OneDrive, which provides 1 terabyte of space.

Arun Srivastav

CEO at Planfirma Technologies Private Limited

The platform is user-friendly and has positively impacted our communication, allowing us to communicate with people from different countries and cities in real time.

Daria Bolgar

Team Lead at a tech services company with 51-200 employees

The biggest advantage of Microsoft Teams is that it is a combined package where I can do chat, video conferencing, work on spreadsheets, documents, and other things with many people sitting at my desk, which makes work easy, especially with clients who are in remote locations, so it saves a lot of time.

Manikumar David

IT Manager at R K Khanna and Associates

For more quotes and insights, download the Microsoft Teams report

In my experience, Slack is a stable product for communication, and I appreciate its automation features and integration of AI capabilities for enhancing specific functions.

Awais Mehmood

Webflow Developer at Qureos

Slack Business - Enterprise is beneficial for us primarily because the API was very beneficial, and that is the main one;

Aleco Kapsuk

Da at hanasoft

We use the incoming webhook to push end results of automation, which makes our life easier by allowing us to easily check the status of our automation jobs through our corporate phone while in Slack itself.

Akhil Viswam

Senior Consultant at a consultancy with 10,001+ employees

For more quotes and insights, download the Slack Business - Enterprise report

Categories and Ranking

Microsoft Teams

Ranking in Enterprise Social Software

2nd

Average Rating

8.2

Reviews Sentiment

6.7

Number of Reviews

181

Ranking in other categories

Virtual Meetings (3rd)

Slack Business - Enterprise

Ranking in Enterprise Social Software

1st

Average Rating

8.4

Reviews Sentiment

5.6

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2026, in the Enterprise Social Software category, the mindshare of Microsoft Teams is 6.8%, down from 14.0% compared to the previous year. The mindshare of Slack Business - Enterprise is 9.8%, down from 15.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Social Software Mindshare Distribution
Product	Mindshare (%)
Slack Business - Enterprise	9.8%
Microsoft Teams	6.8%
Other	83.4%

Enterprise Social Software

Featured Reviews

Ayush Saxena

Engineer at a comms service provider with 10,001+ employees

Collaboration has transformed daily work and supports seamless global voice communication

Microsoft Teams could be improved, especially regarding contact center solutions which have a growing need for omnichannel capabilities, integrating with external platforms such as social media and email for a unified experience. Minor improvements might include reintroducing features such as GPU options available in classic Microsoft Teams to address issues in modern Microsoft Teams related to video meetings and content sharing. Furthermore, essential information such as who started or ended recordings should be more accessible in the Microsoft Teams admin center. I rate it a nine because Microsoft Teams occasionally experiences glitches in the client, leading to missing chat history or other transient issues. The performance issues with the desktop client and the support service complexities contribute to my rating being less than perfect. I have not identified any other improvements needed for Microsoft Teams.

Read full review

Akhil Viswam

Senior Consultant at a consultancy with 10,001+ employees

Threaded collaboration has transformed how our team tracks tickets and monitors automation updates

One suggestion I would make for improving Slack Business - Enterprise is the support of multimedia such as images and videos that we can easily share through Slack. That would be great. Additionally, another thing is AI integration; if Slack has some AI capabilities to get insights about conversations or summarization, that would be a great feature. If Slack has an AI feature that can summarize a particular Slack thread and provide a summary of that, that would be a great feature for us. I would rate it a ten if it comes with some AI features, particularly using generative AI to produce summarization and other kinds of insights from communication in a more secure, data-secure way.

Read full review

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Top Industries

By visitors reading reviews

Financial Services Firm

16%

Construction Company

12%

Outsourcing Company

11%

Manufacturing Company

Outsourcing Company

17%

Financial Services Firm

12%

Construction Company

Performing Arts

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	66
Midsize Enterprise	46
Large Enterprise	76

By reviewers
Company Size	Count
Small Business	59
Midsize Enterprise	13
Large Enterprise	25

Questions from the Community

What is your experience regarding pricing and costs for Microsoft Teams?

From an organizational point of view, the pricing and setup costs for Microsoft Teams are right, especially since it integrates all the new technologies coming to market, including AI and various A...

See all answers

What needs improvement with Microsoft Teams?

One issue is that now it requires the presenter to initiate the meeting. Previously, anyone could quickly become a presenter, but now I have to ask or request for the presentation. This can cause p...

See all answers

What is your primary use case for Microsoft Teams?

I have been using Microsoft Teams for more than ten years, and it is one of the key communication tools in my organization. I use it for my personal purposes as well. For any kind of communications...

See all answers

What is your experience regarding pricing and costs for Slack?

I am not aware of pricing, setup costs, or licensing, due to my company's partnership with Slack.

See all answers

What needs improvement with Slack?

I am uncertain how Slack Business - Enterprise can be improved. Better notification controls, improved threading, and more integrations are all good features that seem relevant.

See all answers

What is your primary use case for Slack?

My main use case for Slack Business - Enterprise is connecting between different teams and facilitating communication for teams. A quick, specific example of how my teams use Slack Business - Enter...

See all answers

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Compared 7% of the time

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Jive vs Slack Business - Enterprise

Compared 6% of the time

Yammer vs Slack Business - Enterprise

Compared 5% of the time

SAP Build Work Zone vs Slack Business - Enterprise

Compared 5% of the time

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Product Reports

Buyer's Guide

Microsoft Teams

September 2026

Download Microsoft Teams product report

Buyer's Guide

Slack Business - Enterprise

September 2026

Download Slack Business - Enterprise product report

Also Known As

MS Teams

No data available

Overview

Microsoft Teams combines robust communication tools with seamless collaboration features. It supports video calls, chat, and integrates with Microsoft 365, enhancing remote work productivity.

Microsoft Teams offers a unified platform for effective communication and collaboration. It excels in video and audio call quality, supports file sharing, and facilitates real-time collaboration. Its integration with Microsoft 365, OneDrive, and SharePoint streamlines document management and enhances team productivity. Challenges include improving integration with third-party tools, optimizing memory usage, and refining the interface navigation. Key areas for enhancement include customization, task management, and multi-platform consistency. Nevertheless, Teams is pivotal for project management, communication, and document sharing across distributed teams.

What are the most important features of Microsoft Teams?

Seamless Communication: High-quality video and audio calls with reliable connectivity.
Real-Time Collaboration: Effective screen sharing and chat retention boost productivity.
Integration with Microsoft 365: Streamlined document management with OneDrive and SharePoint.
Comprehensive Task Management: Unified platform for managing tasks and scheduling meetings.
Robust File Sharing: Efficient data sharing and collaboration tools for teams.

What benefits and ROI can users expect?

Improved Productivity: Enhances remote work by streamlining communication and collaboration.
Efficient Document Management: Simplifies sharing and storage with integrated tools.
Enhanced Decision-Making: Facilitates team engagement and collaboration for better outcomes.
Streamlined Operations: Unifies tasks, messaging, and meetings on a single platform.

Microsoft Teams supports diverse industries by connecting collaborators across different locations. It is widely used for team collaboration, messaging, file sharing, and virtual meetings. Teams are enhancing project management, communication, and data sharing with effective integration into tools like Jira, Bitbucket, and SharePoint.

Microsoft

Slack Business - Enterprise facilitates team communication and collaboration with integration capabilities and a user-friendly interface, supporting mobile and web platforms. It enhances productivity through efficient organization, instant communication, and extensive customization options.

Designed for seamless integration with apps and services, Slack Business - Enterprise provides efficient organization through channels and threads, instant communication, file sharing, and video calls. Productivity is boosted via notifications, reminders, bots, and automation. Customization enhances the user experience, promoting collaboration. However, improvement areas include video chat, meeting functions, and third-party tool integration. Users prioritize enhanced UI, security, and document collaboration, alongside better scalability, stability, and attachment browsing capabilities.

What are the key features of Slack Business - Enterprise?

Seamless Integration: Connect with a range of apps and services to streamline operations.
Efficient Organization: Utilize channels and threads for organized communication.
Instant Communication: Facilitate real-time messaging for immediate interaction.
File Sharing: Share documents and media effortlessly within the platform.
Video Calls: Support for video meetings with screen sharing capabilities.
Automation: Boost productivity with notifications, reminders, and bots.
Customization: Tailor UI and integrations to enhance the user experience.
Search Function: Easily locate past messages and information.

What benefits and ROI should users consider?

Enhanced Collaboration: Facilitates teamwork with organized channels and real-time messaging.
Improved Productivity: Automation and integrations streamline workflow processes.
Flexibility: Mobile and web platform support suits diverse work environments.
Customizability: Tailor functionalities to specific needs for better engagement.
Integration Capabilities: Connect with tools like Google Drive and Zoom to enhance workflows.

Slack Business - Enterprise is widely used across various industries, serving as a communication hub within organizations. Its features support internal and external communication, project management, and workflow optimization. Industries benefit from its integration with Google Drive and Zoom, enabling efficient collaboration and streamlined operations.

Slack

Sample Customers

Honeywll, AIRFRANCE, AccuWeather, Lilly

Strava, The New York Times, Spotify, Blue Bottle Coffee Company, Eventbrite, Box, Circa, Stripe

Buyer's Guide

Microsoft Teams vs. Slack Business - Enterprise

September 2026

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