Email list of companies using Microsoft Teams
Reach IT, unified communications and workplace leaders at organisations standardised on Microsoft Teams, Teams Phone and Teams Rooms.
Free Microsoft Teams count + 10 sample records
868,803+ companies · 5,530,400+ contacts available
- ✓Exact count for your titles, regions and company size
- ✓10 verified sample records to check quality
- ✓Price quote within 1 business day
Trusted by B2B and enterprise revenue teams
How many companies use Microsoft Teams?
Data InfoMetrix tracks 868,803+ companies running Microsoft Teams as of October 2026, with 5,530,400+ verified contacts at those accounts. The largest groups are Government, Financial Services and Healthcare. Buying decisions usually sit with the CIO, Head of Digital Workplace and VP of IT. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count
Organizations detected running Microsoft Teams.
Direct emails and phone dials for decision-makers.
Full buying committee mapped.
SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.
| Technology category | Productivity & Collaboration |
|---|---|
| Tracked organizations | 868,803+ verified accounts worldwide |
| Decision-maker contacts | 5,530,400+ records with emails, mobile and direct dials |
| Key roles | CIO, Director of Unified Communications, Head of Digital Workplace, platform administrators, IT directors, procurement |
| Geography | 180+ countries · country-by-country counts on request |
| Verification | DNS and script telemetry, 5-stage SMTP handshake, manual research |
| Refresh cadence | Continuous, 30–45 day maximum record age at delivery |
| Compliance | GDPR, CAN-SPAM, CCPA and CASL |
| Delivery | 24–48 hours as CSV, XLSX or CRM API |
Researched by the Data InfoMetrix research team. Counts updated October 2026.
How we count and verify dataSee 10 records first
Matched to your ICP filters, free.
Selling to Microsoft Teams customers
Microsoft Teams is the default collaboration tool for organizations on Microsoft 365. Its huge user base buys calling, meeting room, compliance and productivity tools that plug into Teams.
Written by the Data InfoMetrix research team · Updated October 2026
Who runs Microsoft Teams
Teams is used across every industry, especially in enterprises, public sector, education and healthcare that run Microsoft 365. Microsoft now sells Teams separately from some Microsoft 365 suites, following changes first made in the EU and then worldwide.
Who to contact
The CIO and IT Director own Microsoft 365 and Teams. Unified communications managers handle Teams Phone and meeting rooms, Microsoft 365 administrators manage apps and policies, and compliance teams manage retention and eDiscovery.
When Teams accounts are ready to buy
Replacing a legacy phone system with Teams Phone, equipping meeting rooms, Copilot rollouts, licensing changes and compliance projects are the main triggers.
How to segment and approach
Segment by company size, industry and Microsoft licence level, and by whether Teams Phone is in use. Accounts with Teams plus a separate calling or contact center platform are targets for consolidation.
Microsoft certification and a Teams app in Microsoft AppSource carry real weight with IT buyers.
Size your Microsoft Teams audience
Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.
Estimates from our current Microsoft Teams dataset. Exact counts come with your quote.
Reach the whole buying committee
A Microsoft Teams account is not one contact. We map the people who evaluate, buy, run and use it across Workplace Collaboration & Unified Communications.
These are examples. We build records for any department, seniority or custom title.
See exactly what you get
Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, Microsoft Teams edition, coexisting stack and intent.
We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.
How we prove an account runs Microsoft Teams
No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol
Live DNS & script signals
We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running Microsoft Teams instance.
DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure90-day hiring signals
We track job requisitions that ask for Microsoft Teams skills, which shows ongoing budget and headcount.
Pre-delivery SMTP handshake
Each email is tested against the destination mail server, and titles are checked against current company rosters.
Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.
Every email that hard-bounces within 30 days of delivery is replaced free, record for record.
Live SMTP and MX checks right before we send your file.
Clean CSV or XLSX, ready for one-click import.
What are you trying to do?
Each campaign needs a different data strategy. Pick your goal to see how we build the audience.
Find companies on rival platforms and reach the people evaluating a move to, or away from, Microsoft Teams.
Conquesting playbookPitch integrations, add-ons and complementary tools to companies already running Microsoft Teams.
Ecosystem playbookBuild account lists around Microsoft Teams deployment scale and engage the full committee across departments.
ABM playbookKnow the stack around every account
Microsoft Teams rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.
Open the coexistence matrixWhat Microsoft Teams customers look like
Anonymised profiles of companies in our Microsoft Teams dataset of 868,803+ accounts. Named accounts are shared in your free sample, never on a public page.
| Company size | Industry | Country | Employees | Revenue |
|---|---|---|---|---|
| Enterprise | Healthcare | United Kingdom | 10,000+ | $5B+ |
| Mid-market | Manufacturing | United States | 500–999 | $100M–$250M |
| Mid-market | Government | Canada | 200–999 | $50M–$250M |
| Enterprise | Financial Services | Germany | 5,000+ | $1B+ |
| Upper mid-market | Healthcare | United States | 1,000–4,999 | $250M–$1B |
| SMB | Manufacturing | Australia | 50–199 | $10M–$50M |
| Enterprise | Government | United States | 10,000+ | $5B+ |
| Mid-market | Financial Services | United States | 500–999 | $100M–$250M |
Plus 170 more countries. Ask for a country-by-country count of Microsoft Teams accounts and we'll include it with your free sample.
Build the list your way
Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.
Filter by what they actually run.
Match revenue, size and industry.
Target any territory.
What Microsoft Teams teams are struggling with
Know the friction before you reach out, and position your product where it matters.
Copilot rollout readiness
Teams Phone migration
Meeting room modernisation
“Data InfoMetrix provided the exact CRM footprint and RevOps contacts we needed. We closed 140+ enterprise accounts in record time.”
Microsoft Teams list questions, answered
How many companies use Microsoft Teams?
Data InfoMetrix tracks 868,803 companies using Microsoft Teams, with 5,530,400 verified contacts at those accounts as of October 2026. The largest groups are Government, Financial Services and Healthcare. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.
Who buys and manages Microsoft Teams inside a company?
Microsoft Teams is usually owned by Workplace Collaboration & Unified Communications. Decision-makers include CIO, Head of Digital Workplace and VP of IT; UC Architect and Microsoft 365 Administrator shape the choice, and Employees and Frontline Workers use it day to day. Our Microsoft Teams list can include any of these roles.
Which Microsoft Teams products or editions can I target?
You can target accounts by the Microsoft Teams products they run, including Microsoft Teams (Microsoft 365), Teams Phone, Teams Rooms, Teams Premium and Microsoft 365 Copilot in Teams. Tell us which edition or module matters and we filter the list to those accounts.
What other software do Microsoft Teams customers use?
Microsoft Teams customers commonly also run SharePoint, ServiceNow, Poly / Logitech Rooms and Okta. Microsoft Teams is often connected to Microsoft 365 and Power Platform, so users of those tools overlap heavily. We can filter any list by this kind of stack overlap.
What are the main alternatives to Microsoft Teams?
The main alternatives to Microsoft Teams are Slack, Zoom Workplace and Google Workspace. We also keep verified user lists for Slack, which is useful for competitive displacement campaigns.
When are Microsoft Teams customers most likely to buy?
Buying triggers we track for Microsoft Teams accounts include copilot licence purchase, PBX end-of-life, office redesign and Microsoft EA renewal. A common pain point is copilot rollout readiness: data oversharing risks surface.
Can Data InfoMetrix deliver a free sample Microsoft Teams contact list before ordering?
Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Microsoft Teams criteria—including target job titles, company size, and region—delivered within one business day with no obligation.
How does Data InfoMetrix guarantee email deliverability for Microsoft Teams contacts?
Data InfoMetrix provides a 99% email deliverability guarantee on all Microsoft Teams datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.
Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data
Get your Microsoft Teams users list
Tell us your titles, regions and company size. We'll send counts, a quote and a free 10-record sample.
Related lists
Alternatives to Microsoft Teams, tools its customers also run, and more Productivity & Collaboration lists.

