"We want to introduce groupware, but we don't know whether to choose Google Workspace or Microsoft 365"—we frequently receive this question from small and medium-sized enterprises with 10 to 50 employees.
Both are world-class cloud groupware suites that share the commonality of providing email, calendar, video conferencing, and storage in a unified package. However, there are significant differences across three key dimensions: AI pricing models, compatibility with Office software, and administrative simplicity.
Based on the latest 2026 plans, this article objectively compares both services and compiles the essential insights small business executives and IT leads need to decide which platform to adopt.
Basic overview of Google Workspace and Microsoft 365
First, let us outline the positioning of both services.
Google Workspace is a cloud-native business tool suite provided by Google. Bundling Gmail, Google Docs, Sheets, Google Drive, Google Meet, and more, it can be used entirely within a web browser without installing additional software. Its AI feature, "Gemini," has been embedded across all paid plans at no additional charge since March 2025.
Microsoft 365 is a business SaaS suite provided by Microsoft. In addition to Outlook email, OneDrive, and Microsoft Teams, depending on the plan, you can install and use desktop versions of Word, Excel, and PowerPoint. Its AI feature, "Microsoft 365 Copilot," is treated as a separate paid add-on.
Pricing plan comparison (as of April 2026)
Google Workspace pricing
| Plan | Monthly (annual contract) | Key features |
|---|---|---|
| Business Starter | ¥680/user | Gmail, 30 GB storage, Meet, core Gemini AI features |
| Business Standard | ¥1,360/user | All Starter features + 2 TB storage, Meet recording, full Gemini AI features |
| Business Plus | ¥2,040/user | All Standard features + 5 TB storage, advanced management features and audit logs |
| Enterprise | Custom quote required | Custom storage, advanced security and DLP |
*Monthly flexible plans are approximately 1.4 times the above prices.
Microsoft 365 pricing
| Plan | Monthly (annual contract) | Key features |
|---|---|---|
| Business Basic | ¥899/user | Outlook web app, 1 TB storage, Teams, web app versions of Office |
| Business Standard | ¥1,848/user | All Basic features + desktop Office apps (Word, Excel, PowerPoint, etc.) |
| Business Premium | ¥3,298/user | All Standard features + advanced security and device management (Intune) |
| Microsoft 365 Copilot | +¥3,300/user | AI assistant (add-on to each Business plan) |
*A price revision is scheduled for select plans in July 2026.
Cost considerations
Comparing tiers with comparable feature sets, Google Workspace Business Standard and Microsoft 365 Business Standard sit in nearly identical price ranges. However, the cost divergence is substantial if you want to utilize AI. While Google Workspace includes Gemini AI as standard, Microsoft 365 Copilot requires an extra monthly add-on of approximately ¥3,300/user on top of the Business plan. For an organization of 20 people, the difference in AI functionality alone translates to roughly ¥66,000 per month.
Detailed feature-by-feature comparison
Email, calendar, and contacts
| Features | Google Workspace | Microsoft 365 |
|---|---|---|
| Email client | Gmail (browser and app) | Outlook (browser, app, and desktop) |
| Calendar | Google Calendar | Outlook Calendar |
| Contact management | Google Contacts | Outlook People |
| Mailing lists | Google Groups | Distribution groups and shared mailboxes |
| Spam filter | Google filter (high accuracy) | Microsoft Defender (high accuracy) |
Gmail boasts widespread adoption in Japan and is praised for its intuitive usability. Outlook features comprehensive enterprise governance capabilities, such as internal portals and calendar sharing, giving it deep roots in large corporations.
Document and spreadsheet authoring
| Features | Google Workspace | Microsoft 365 |
|---|---|---|
| Document creation | Google Docs (Web) | Word (Web + Desktop) |
| Spreadsheets | Google Sheets (Web) | Excel (Web + Desktop) |
| Presentations | Google Slides (Web) | PowerPoint (Web + Desktop) |
| Real-time co-authoring | Standard feature (exceptionally smooth) | Supported (though performance can occasionally lag) |
| Office file compatibility | Read and write supported (occasional formatting discrepancies) | Fully compatible |
Microsoft 365 holds the advantage if you frequently exchange files with external partners. In particular, if you rely heavily on complex macros or advanced functions in Excel, migrating to Google Workspace may introduce formatting discrepancies or functional limitations. Conversely, if internal collaboration is your primary focus, the simplicity of Google Docs directly boosts team productivity.
Storage
| Plan | Google Workspace | Microsoft 365 |
|---|---|---|
| Entry plan | 30 GB/user (Starter) | 1 TB/user (Basic) |
| Standard plan | 2 TB/user (Standard) | 1 TB/user (Standard) |
| Higher-tier plan | 5 TB/user (Plus) | Virtually unlimited (Enterprise) |
Despite being an entry tier, Microsoft 365 Basic provides 1 TB of OneDrive storage, delivering strong cost performance based on raw storage volume alone. Google Workspace employs pooled organization-wide storage, enabling efficient utilization in organizations where usage varies widely between heavy and light users.
Video conferencing and communication
| Features | Google Workspace | Microsoft 365 |
|---|---|---|
| Video conferencing tool | Google Meet | Microsoft Teams |
| Maximum participant capacity | 500 participants (Standard) | 300 participants (Teams) |
| Recording capability | Yes (Standard and above) | Yes (all plans) |
| Chat functionality | Google Chat | Microsoft Teams Chat |
| Meetings with external participants | Join via browser alone | Teams app recommended |
Google Meet is well-regarded for its ease of use, allowing anyone to join simply by sharing a URL in a browser. Microsoft Teams tightly integrates meeting capabilities with chat and task management, making it well-suited for project management at the team level.
AI capabilities (Gemini vs Microsoft 365 Copilot)
| Features | Gemini（Google Workspace） | Microsoft 365 Copilot |
|---|---|---|
| Additional fee | None (standard across all paid plans) | Yes (approx. ¥3,300/user monthly) |
| Email draft assistance | Gemini generates drafts directly within Gmail | Text auto-completion and suggested replies in Outlook |
| Document creation assistance | Text generation in Google Docs | Text generation and summarization in Word |
| Meeting summaries | Transcription and summarization in Google Meet | Meeting summaries in Teams (Copilot) |
| Data analysis assistance | Formula and analysis suggestions in Sheets | Copilot conducts data analysis in Excel |
| Japanese language support | Good | Good |
For small and medium-sized enterprises that want to start using AI capabilities immediately with no extra fees, Google Workspace holds the advantage. Because Copilot is deeply integrated across Microsoft 365 applications, it delivers powerful results for organizations that already maintain a well-established Microsoft environment.
Security and administrative features
| Features | Google Workspace | Microsoft 365 |
|---|---|---|
| Two-factor authentication (MFA) | Yes (all plans) | Yes (all plans) |
| Single sign-on (SSO) | ○（Enterprise） | Yes (all plans) |
| Device management (MDM) | Yes (Admin Console) | ○（Intune / Business Premium） |
| Data loss prevention (DLP) | Yes (Enterprise and above) | Yes (enhanced in Business Premium) |
| Admin console simplicity | High (easy to administer even without IT expertise) | Moderately complex (requires a learning curve due to extensive feature set) |
| Audit logs | Yes (all plans) | Yes (all plans) |
The Google Workspace Admin Console is simple and designed for straightforward management, even for small and medium-sized businesses without dedicated IT staff. Microsoft 365 offers robust identity management centered around Entra ID (formerly Azure AD), making it exceptionally well-suited for organizations with existing Active Directory environments.
Cases where small and medium-sized enterprises should choose Google Workspace
Consider introducing Google Workspace if any of the following apply to your organization.
- No dedicated IT specialists on staff: The Admin Console is intuitive and setup is simple
- Organizations centered around remote work or telework: All features are fully accessible via a browser, independent of device
- Want to leverage AI features immediately: Gemini is included across all plans with no added fees
- Priority on cost efficiency: Total cost including AI tends to be more affordable than Microsoft 365
- Startups and newly formed organizations: Looking to build a cloud-native setup without legacy Microsoft Office assets
For details on core features and adoption advantages of Google Workspace, please also refer to Maximize operational efficiency with Google Workspace: core features and adoption benefits explained.
Cases where small and medium-sized enterprises should choose Microsoft 365
Consider introducing Microsoft 365 if any of the following apply to your organization.
- Business partners primarily use Microsoft Office: Compatibility for Word, Excel, and PowerPoint files is the top priority
- Existing Active Directory or Windows Server environments: Enables seamless integration with Entra ID
- Employees frequently rely on Excel and Word: The team requires installing and using desktop versions of Office
- Strict security and compliance requirements: Industries requiring Intune or Defender included in Business Premium
- A well-established Microsoft Teams culture: Existing Teams workspaces and established operating conventions
Key considerations for migration and switching
When migrating from existing systems, common challenges often center on data migration and transferring email addresses.
When moving to Google Workspace, you can import Outlook emails and calendars using Google's migration utility (Data Migration Service). Migrating to Microsoft 365 can also be carried out relatively smoothly by leveraging Microsoft's migration advisors.
However, if your workflows depend on complex Excel macros or proprietary Outlook add-ins, alternatives may be necessary after migrating to Google Workspace. Before migrating, it is essential to take inventory of current workflows and clarify which features are non-negotiable.
Additionally, Google Workspace group addresses make it easy to set up shared team addresses (such as info@ or support@). For a detailed walkthrough, see What is a Google Workspace group address? A complete guide to creation, benefits, and effective usage.
Conclusion: decision criteria for choosing between the two
Organizations suited for Google Workspace: Small and medium-sized enterprises with lean IT resources seeking to build cloud-native environments and leverage AI cost-effectively.
Organizations suited for Microsoft 365: Organizations requiring strict Office file compatibility, existing Windows/Active Directory environments, or desktop applications.
While the "right" choice depends on your organization's specific context, an increasing number of newly founded startups and small businesses with 20 or fewer employees are choosing Google Workspace for its affordability, simplicity, and effortless AI adoption.
GleamHub provides complete support from Google Workspace adoption consulting through setup and migration. If you would like guidance on which option best fits your organization, please feel free to reach out to us.
Related articles
- Google Workspace complete implementation guide (2026 edition): pricing, setup, and migration steps — Concrete deployment steps once you choose GWS
- What is Google Workspace? Features, pricing, and adoption benefits explained clearly — Overview of core GWS features and benefits
Considering Google Workspace adoption or migration?
GleamHub provides one-stop support for small and medium-sized enterprises, from initial setup to migration from legacy systems. Start with a free consultation today.
