Calendly VS Microsoft Exchange Online
As of 30 October 2026, Microsoft Exchange Online is named by 1,074 companies and Calendly by 114; Calendly skews to companies under 200 people (65% vs 33%), Microsoft Exchange Online to companies over 1,000 (32% vs 10%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: Calendly's script and mail records show on hundreds of thousands of small sites, Microsoft Exchange Online rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Calendly: 2–200 employees
- 65%
- Microsoft Exchange Online: 2–200 employees
- 33%
- Calendly: 1,000+ employees
- 10%
- Microsoft Exchange Online: 1,000+ employees
- 32%
- Postings per company, 90 days
- 4.9 · 2.1
- Website or DNS footprint
- 83,363 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | Calendly | share | Microsoft Exchange Online | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 9 | 8% | 5 | 0% | Calendly |
| 2-10 employees | 18 | 16% | 47 | 4% | Calendly |
| 11-50 employees | 34 | 30% | 111 | 10% | Calendly |
| 51-200 employees | 22 | 19% | 201 | 19% | even |
| 201-500 employees | 14 | 12% | 216 | 20% | Microsoft Exchange Online |
| 501-1000 employees | 6 | 5% | 149 | 14% | Microsoft Exchange Online |
| 1001-5000 employees | 6 | 5% | 200 | 19% | Microsoft Exchange Online |
| 5001-10000 employees | 3 | 3% | 50 | 5% | Microsoft Exchange Online |
| 10,001+ employees | 2 | 2% | 95 | 9% | Microsoft Exchange Online |
| Segment | Calendly | share | Microsoft Exchange Online | share | Leans |
|---|---|---|---|---|---|
| Technology & software | 43 | 38% | 277 | 26% | Calendly |
| Business & finance services | 26 | 23% | 224 | 21% | even |
| Consumer services & leisure | 18 | 16% | 37 | 3% | Calendly |
| Media & content | 8 | 7% | 23 | 2% | Calendly |
| Public, community & associations | 6 | 5% | 50 | 5% | even |
| Manufacturing & industry | 5 | 4% | 179 | 17% | Microsoft Exchange Online |
| Property & construction | 4 | 4% | 59 | 5% | even |
| Health care | 2 | 2% | 64 | 6% | Microsoft Exchange Online |
| Hospitality & travel | 2 | 2% | – | – | outside top 12 |
| Commerce & trade | – | – | 48 | 4% | outside top 12 |
| Utilities & infrastructure | – | – | 45 | 4% | outside top 12 |
| Transport, logistics & rental | – | – | 33 | 3% | outside top 12 |
| Automotive | – | – | 17 | 2% | outside top 12 |
| Segment | Calendly | share | Microsoft Exchange Online | share | Leans |
|---|---|---|---|---|---|
| United States | 84 | 74% | 560 | 52% | Calendly |
| United Kingdom | 9 | 8% | 72 | 7% | even |
| Germany | 5 | 4% | 171 | 16% | Microsoft Exchange Online |
| Canada | 4 | 4% | 47 | 4% | even |
| India | 3 | 3% | 10 | 1% | even |
| Brazil | 2 | 2% | – | – | outside top 12 |
| Poland | 2 | 2% | – | – | outside top 12 |
| Switzerland | 1 | 1% | 16 | 1% | even |
| Estonia | 1 | 1% | – | – | outside top 12 |
| France | 1 | 1% | 23 | 2% | even |
| Ireland | 1 | 1% | – | – | outside top 12 |
| South Africa | 1 | 1% | – | – | outside top 12 |
| Netherlands | – | – | 24 | 2% | outside top 12 |
| Australia | – | – | 20 | 2% | outside top 12 |
| Belgium | – | – | 15 | 1% | outside top 12 |
| Italy | – | – | 12 | 1% | outside top 12 |
| Sweden | – | – | 10 | 1% | outside top 12 |
| Segment | Calendly | share | Microsoft Exchange Online | share | Leans |
|---|---|---|---|---|---|
| Marketing & communications | 300 | 46% | – | – | outside top 12 |
| Administration & office | 86 | 13% | 3 | 0% | Calendly |
| Sales | 80 | 12% | 10 | 0% | Calendly |
| Human resources | 23 | 4% | – | – | outside top 12 |
| Customer service & success | 17 | 3% | 61 | 2% | even |
| IT operations & business systems | 15 | 2% | 2,140 | 75% | Microsoft Exchange Online |
| Software engineering | 15 | 2% | 64 | 2% | even |
| Retail & store operations | 9 | 1% | – | – | outside top 12 |
| Business development & strategy | 7 | 1% | 3 | 0% | even |
| Education & training | 7 | 1% | – | – | outside top 12 |
| Product, program & project management | 6 | 1% | 39 | 1% | even |
| Data & AI | 4 | 1% | 12 | 0% | even |
| Engineering (non-software) | – | – | 113 | 4% | outside top 12 |
| General management & consulting | – | – | 13 | 0% | outside top 12 |
| Skilled trades and field service | – | – | 5 | 0% | outside top 12 |
| Legal, compliance & risk | – | – | 4 | 0% | outside top 12 |
The companies behind each column
Companies using Calendly →
Companies using Microsoft Exchange Online →
Scheduling ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Microsoft Exchange Online is named by 1,074 companies in job postings and Calendly by 114; 0 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/calendly-vs-microsoft-exchange-online)
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 career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- 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.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
Calendly vs Microsoft Exchange Online: questions
Which is more used, Calendly or Microsoft Exchange Online?
By companies naming it in their own job postings, Microsoft Exchange Online (1,074) over Calendly (114). By website-and-DNS footprint, Calendly (83,363 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Calendly?
65% of Calendly companies have 2 to 200 employees, against 33% for Microsoft Exchange Online. 10% of Calendly companies have over 1,000 employees, against 32% for Microsoft Exchange Online.
Do companies run both?
0 companies name both in their postings, usually Calendly in marketing and Microsoft Exchange Online in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
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