Tools · Microsoft 365 · United States

Companies using Microsoft 365 in United States_

As of 30 October 2026, 2,002,927 US companies show Microsoft 365: 2,002,186 on their website or in DNS records and 6,999 in their own job postings, led by New York.

As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Top city
New York · 18,619
In both sources
6,258
Most common size
51-200 employees
Team that names it most
IT operations & business systems · 4,924 postings
Top industry, posting companies
Business & finance services
2,002,927US companies show Microsoft 365, all sources
2,002,186on their website or in DNS records
6,999name it in job postings · 18,715 open
New Yorkcity with most Microsoft 365 companies · 18,619
02 — Who uses it

US companies on Microsoft 365

Companies with 51+ employees and high-confidence evidence in their own postings; job boards and portals left out.

362 US companies match this filter; 2,002,927 show Microsoft 365 in total.

Open the sales or marketing leader at each one with a verified e-mail, or get new US Microsoft 365 users every Monday.

Free plan: 1,000 records, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

03 — Breakdown

By city, company size, industry and team

Footprint tables first (website or DNS), then the companies whose postings name Microsoft 365.

Footprint by city
companiesshare
New York
18,6191%
Houston
16,8821%
Miami
11,2651%
Chicago
10,4531%
Dallas
10,0561%
Atlanta
9,5540%
Austin
9,2470%
Washington
7,5340%
San Diego
7,2090%
Phoenix
7,0260%
Footprint by company size
companiesshare
Self-employed
733,79337%
2-10 employees
594,77530%
11-50 employees
462,55923%
51-200 employees
139,6727%
201-500 employees
39,9462%
501-1000 employees
15,5091%
1001-5000 employees
11,7031%
5001-10000 employees
1,9450%
10,001+ employees
2,2840%
Posting companies by city
companiesshare
New York
1823%
Chicago
931%
Atlanta
921%
Houston
871%
Washington
851%
Austin
681%
Boston
571%
Dallas
541%
San Francisco
521%
Denver
491%
Seattle
401%
Charlotte
391%
Posting companies by size
companiesshare
Self-employed
401%
2-10 employees
3385%
11-50 employees
72510%
51-200 employees
1,57923%
201-500 employees
1,28618%
501-1000 employees
92513%
1001-5000 employees
1,22317%
5001-10000 employees
3325%
10,001+ employees
5518%
Posting companies by industry
companiesshare
Business & finance services
1,54222%
Technology & software
1,28318%
Manufacturing & industry
1,15216%
Public, community & associations
67310%
Health care
5658%
Property & construction
4917%
Commerce & trade
2694%
Consumer services & leisure
2634%
Utilities & infrastructure
2403%
Transport, logistics & rental
1572%
Media & content
1252%
Automotive
1132%
Postings by function
postings · companies
IT operations & business systems
4,924 · 2,821
Engineering (non-software)
967 · 448
Product, program & project management
903 · 534
Sales
859 · 418
Administration & office
783 · 535
Finance & accounting
645 · 395
healthcare clinical
641 · 103
hospitality and food service
543 · 48
Software engineering
481 · 237
Customer service & success
441 · 278
social care and community
415 · 151
Legal, compliance & risk
412 · 239
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

2,002,927 US companies show Microsoft 365: 2,002,186 carry it on their website or in their DNS records, 6,999 name it in their own job postings, 6,258 do both. (Breaknorm, 30 October 2026, https://breaknorm.co/tools/microsoft-365/united-states)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Job postingsRead hourly from the applicant tracking systems behind US career sites. A tool counts when the employer's own text names it as the team's system.
  • CountryFrom the company's own website: imprint, address, phone prefix and language, with a confidence score. Not the posting's location.
  • Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
  • ExclusionsJob boards, portals and aggregators are kept out of company lists.
FAQ

Microsoft 365 in United States: questions

Is this every US company on Microsoft 365?

It is every US company whose website, DNS records or own job postings show it: 2,002,927 in total. Companies that use Microsoft 365 without any public trace are not counted.

What does "United States" mean here?

The country of the company, from its own website (imprint, address, phone prefix, language), not where the posting is located. A German company hiring in Paris still counts as German.

How do I get the US list with e-mails?

Sign up, filter companies on Microsoft 365 and United States, and open the people you want. Counting is free; the first 1,000 records are too.

Companies and people

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