Moss Spend Report · Jan–May 2026

The top Comms & Collab tools in 2026.

Ranked by real company spend.

Most "best collaboration tools" lists run on opinions, feature checklists, or affiliate deals. This ranking comes from anonymised spend data across thousands of companies: what teams are actually paying for, not what analysts are recommending.

€6.3M
total Comms & Collab spend tracked in 2026
13
Comms & Collab vendors analysed
1,000s
of companies, Jan–May 2026

The leaderboard

The top 10 communication and collaboration tools for teams in 2026.

Ranked by adoption, the number of organisations using each tool. Click any column to re-sort: by spend, by average per company, or by year-on-year growth.

Tool
Category
1
Microsoft
Teams / 365
Collaboration Suite
€3,942,018
+99.4%
2
Slack
Team Messaging
€404,572
−2.4%
3
Notion
Docs & Knowledge
€536,488
+66.5%
4
Miro
Visual Collaboration
€433,485
+30.9%
5
Calendly
Scheduling
€102,138
+4.4%
6
Dropbox
File Storage
€149,863
+17.1%
7
Zoom
Workplace
Video Conferencing
€184,625
−0.4%
8
WeTransfer
File Sharing
€16,088
+81.3%
9
Superhuman
Email
€22,636
+35.2%
10
Aircall
Cloud Telephony
€286,449
+87.6%

Spend bars use a logarithmic scale so smaller tools remain visible alongside Microsoft. Rank reflects company adoption.

The Slack vs Microsoft battle, in one bar

Share of total Comms & Collab spend

Microsoft leads on spend, but Slack still holds 30.3% of companies in the category, proving its grip on startups and SMEs. Together they account for 69.0% of all Comms & Collab spending.

Microsoft Teams / 36562.6%
Slack6.4%
Others31.0%

Key takeaways

Four things the spend data tells us

01

Microsoft dominates with 62.6% of all spend, more than Slack, Notion, Miro, and Calendly combined.

02

Notion is the fastest-growing docs platform (+66.5% YoY), climbing to second place in total spend behind Microsoft.

03

AI features drive spend increases. The three fastest-growing tools all launched major AI capabilities in the past year.

04

Standalone tools are losing ground. Slack (−2.4%) and Zoom (−0.4%) are the only two tools with flat or negative spend growth.

The ranking · 10 to 1

Every tool, in detail

10
#10Cloud Telephony

Aircall

Total spend
€286,449
Spend share
4.6%
YoY growth
+87.6%

The highest per-company spend in the entire Comms & Collab top 10. At €1,183/mo average, Aircall commands enterprise-grade pricing for cloud phone systems. With 87.6% spend growth, companies are investing heavily in modern telephony.

Key features in 2026

AI-powered call transcription and real-time coaching. Smart routing distributes calls based on availability and skill. 100+ integrations including HubSpot, Salesforce, and Zendesk. Call analytics dashboard with performance scoring.

Pricing

Essentials at $30/licence/mo, Professional at $50/licence/mo, Custom plan with quote-based pricing. Minimum 3 licences. Annual billing; monthly adds ~33%.

Who it's best for

Sales and support teams replacing legacy phone systems. The spend data shows this is a serious line item, not a lightweight tool. Despite relatively limited adoption, it has the second-highest per-company spend after Microsoft.

9
#9Email

Superhuman

Total spend
€22,636
Spend share
0.4%
YoY growth
+35.2%

The AI productivity suite that started as a premium email client. 35.2% spend growth and 16.9% adoption growth show the platform is expanding beyond individual power users into team deployments. Formed through Grammarly's acquisition of Superhuman in 2025, the suite now combines four category-leading tools under one subscription.

Key features in 2026

Superhuman is a suite of four products: Superhuman Mail (AI-powered email with split inbox, read statuses, Auto Drafts, and Ask AI), Grammarly (AI writing assistance across apps and surfaces), Coda (collaborative docs and databases), and Superhuman Go (a proactive cross-app AI agent). Mail and Go are available on the Business tier; Grammarly and Coda features are accessible on lower tiers. CRM integrations with HubSpot, Salesforce, and Pipedrive on Business.

Pricing

Business at $33/mo per user (annual) or $40/mo monthly. Email access now requires the Business tier following the Grammarly acquisition. Enterprise custom with SOC II compliance.

Who it's best for

Teams looking for a unified AI productivity layer across email, writing, and docs. The suite framing makes the cost easier to justify against buying Grammarly, Coda, and an email client separately, particularly for knowledge-heavy teams where writing quality and inbox speed are both daily priorities.

8
#8File Sharing

WeTransfer

Total spend
€16,088
Spend share
0.3%
YoY growth
+81.3%

The simplest tool on this list, and the fastest growing by recent momentum. WeTransfer's +21.3% growth vs its rolling 3-month average makes it the category's hottest mover. At just €31/mo it is the most affordable tool in the top 10.

Key features in 2026

WeTransfer now offers Free, Starter, Ultimate, and Teams tiers. Ultimate supports unlimited transfers up to 1TB per transfer with custom expiration, password protection, branded pages, and Access Control. Teams adds shared workspaces and admin tools.

Pricing

Free (3GB/month, up to 10 transfers per 30-day window), Starter (300GB, up to 10 transfers per 30-day window), Ultimate (unlimited transfers up to 1TB, custom branding), Teams (Ultimate features plus shared workspaces and admin controls).

Who it's best for

Creative teams sending large files. The 81.3% spend growth suggest companies are upgrading from free to paid tiers.

7
#7Video Conferencing

Zoom Workplace

Total spend
€184,625
Spend share
2.9%
YoY growth
−0.4%

Still the third-highest by total spend, but losing momentum. A −0.4% YoY spend decline signals that standalone video conferencing is being absorbed into all-in-one platforms. When companies leave Zoom, 38.6% go to Microsoft, the highest switch rate in the category.

Key features in 2026

Zoom Workplace bundles meetings, chat, phone, whiteboard, and docs. AI Companion 2.0 generates meeting summaries, action items, and smart recaps at no extra cost. Zoom Docs competes with Notion and Google Docs. Business Plus adds unlimited calling.

Pricing

Basic (free, 40-min group limit), Pro at €15.99/user/mo, Business at €20.99/user/mo. Enterprise custom.

Who it's best for

Companies where video meetings remain the primary collaboration mode.

6
#6File Storage

Dropbox

Total spend
€149,863
Spend share
2.4%
YoY growth
+17.1%

The cloud storage pioneer is holding its ground. 17.1% YoY spend growth shows Dropbox is still winning new customers despite pressure from Microsoft and docs-first platforms like Notion.

Key features in 2026

Dropbox Dash uses AI to search across all connected tools including Slack, Google, and Notion. Smart Sync keeps files local on demand. Dropbox Sign integrates e-signatures. Replay enables video review and approval workflows.

Pricing

Plus at $11.99/mo individual, Standard at $14.50/user/mo, Advanced at $21.50/user/mo, Enterprise custom. Minimum 3 users on Advanced plans.

Who it's best for

Teams needing standalone file storage and sharing outside a bundled productivity suite.

5
#5Scheduling

Calendly

Total spend
€102,138
Spend share
1.6%
YoY growth
+4.4%

The scheduling standard for sales and customer-facing teams. Spend growth of just 4.4% YoY suggests growth is plateauing. Companies already have what they need from the current product.

Key features in 2026

Routing forms qualify leads before booking. Round-robin distribution spreads meetings across reps. Integrations with HubSpot, Salesforce, and Zoom automate booking workflows. Analytics dashboard tracks meeting conversion rates.

Pricing

Free (1 event type), Standard at $10/seat/mo, Teams at $16/seat/mo, Enterprise from ~$15K/yr. Annual billing discounts ~20%.

Who it's best for

Sales, recruiting, and customer success teams running high-volume scheduling.

4
#4Visual Collaboration

Miro

Total spend
€433,485
Spend share
6.9%
YoY growth
+30.9%

The digital whiteboard that product and design teams rely on. Miro sits among the highest-spending tools in the category, and these are serious deployments, not free-tier experiments.

Key features in 2026

Miro AI generates diagrams, mind maps, and user stories from prompts. Intelligent Canvas auto-organises sticky notes into thematic clusters. Talktrack lets users narrate over boards for async collaboration. Deep integrations with Jira, Confluence, Slack, and Teams.

Pricing

Free (3 editable boards), Starter at $8/member/mo, Business at $20/member/mo, Enterprise custom.

Who it's best for

Product, design, and strategy teams running workshops, retrospectives, and planning sessions.

3
#3Docs & Knowledge

Notion

Total spend
€536,488
Spend share
8.5%
YoY growth
+66.5%

A high-conviction platform in Comms & Collab. Despite having fewer companies than Slack, Notion outspends it, reflecting deeper, higher-value deployments rather than broad shallow adoption.

Key features in 2026

Notion Agent runs autonomously for up to 20 minutes on complex tasks across hundreds of pages simultaneously. Voice input for AI prompts on macOS and Windows. Notion Workers provide hosted runtime for custom code. Cross-tool search pulls data from Slack, Jira, and Google Drive.

Pricing

Free (10 guest collaborators), Plus at $10/seat/mo, Business at $20/seat/mo, Enterprise custom with SAML SSO and audit logs.

Who it's best for

Teams replacing multiple tools (docs, wikis, project management) with one platform. The depth of spend relative to adoption suggests teams are consolidating seriously into Notion rather than running it alongside existing tools.

2
#2Team Messaging

Slack

Total spend
€404,572
Spend share
6.4%
YoY growth
−2.4%

Still among the most widely adopted Comms & Collab tools, but the only top-5 platform losing spend. A −2.4% YoY spend decline suggests companies are downgrading or switching to competition.

Key features in 2026

Slackbot gained 30+ AI capabilities powered by Anthropic's Claude, including channel summaries, daily digests, and meeting intelligence.

Pricing

Free (90-day message history), Pro at $8.75/user/mo, Business+ at $18/user/mo, Enterprise custom.

Who it's best for

Startups and tech teams that prefer a messaging-first workflow. Slack wins on affordability at the smaller end of the market, but as companies grow and consolidate their tooling, all-in-one platforms tend to take over

1
#1Collaboration Suite

Microsoft Teams / 365

Total spend
€3,942,018
Spend share
62.6%
YoY growth
+99.4%

Takes the top spot by every metric: adoption, total spend, and per-company spend. Microsoft captures 62.6% of all Comms & Collab spending, and its 99.4% YoY spend growth means companies are doubling their investment.

Key features in 2026

Microsoft 365 Copilot embeds AI across Teams, Word, Excel, PowerPoint, and Outlook. Copilot Chat now works in Teams chats, channels, and meetings. Meeting recaps include video highlights alongside written summaries. Customisable recap templates let teams shape AI-generated notes to match their workflow.

Pricing

Business Basic at $6/user/mo, Standard at $12.50. Enterprise E3 at $36/user/mo, E5 at $57.

Who it's best for

Any company that needs chat, video, docs, email, and file storage in one licence.

Trends for 2026

Three shifts to watch

FAQ

Frequently asked

In our spend data, Microsoft is the most widely used Comms & Collab tool by both adoption and total spend, capturing 62.6% of category spending. Slack ranks second by adoption but captures just 6.4% of spend. Together they account for 69% of the corporate collaboration budgets we analysed.

Methodology

Anonymised card transaction data from European companies. €302M across 20,064 vendors, January 2024 – May 2026. 19 software categories. All figures in EUR. YoY comparisons are like-for-like (Jan–May 2025 vs Jan–May 2026). No individual company data disclosed. Last updated: 22 June 2026.

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