Shipvane · 4 AE roles
Marco E. · joined Cargolio
Fleetora · first roles in DECompanies using Slack in United States_
As of 4 November 2026, 12,204 US companies show Slack: 9,224 on their website or in DNS records and 3,493 in their own job postings, led by New York.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Top city
- New York · 408
- In both sources
- 513
- Most common size
- 51-200 employees
- Team that names it most
- Sales · 605 postings
- Top industry, posting companies
- Technology & software
US companies on Slack
Companies with 51+ employees and high-confidence evidence in their own postings; job boards and portals left out.
Open the sales or marketing leader at each one with a verified e-mail, or get new US Slack users every Monday.
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By city, company size, industry and team
Footprint tables first (website or DNS), then the companies whose postings name Slack.
| companies | share | |
|---|---|---|
| New York | 408 | 4% |
| San Francisco | 259 | 3% |
| Austin | 154 | 2% |
| Chicago | 113 | 1% |
| Boston | 99 | 1% |
| Miami | 94 | 1% |
| Washington | 73 | 1% |
| Atlanta | 69 | 1% |
| Dallas | 63 | 1% |
| Denver | 59 | 1% |
| companies | share | |
|---|---|---|
| Self-employed | 1,423 | 15% |
| 2-10 employees | 1,667 | 18% |
| 11-50 employees | 2,642 | 29% |
| 51-200 employees | 2,066 | 22% |
| 201-500 employees | 712 | 8% |
| 501-1000 employees | 332 | 4% |
| 1001-5000 employees | 293 | 3% |
| 5001-10000 employees | 39 | 0% |
| 10,001+ employees | 50 | 1% |
| companies | share | |
|---|---|---|
| New York | 211 | 6% |
| San Francisco | 192 | 5% |
| Austin | 69 | 2% |
| Boston | 44 | 1% |
| Chicago | 43 | 1% |
| Atlanta | 32 | 1% |
| Miami | 29 | 1% |
| Denver | 25 | 1% |
| Washington | 25 | 1% |
| Brooklyn | 24 | 1% |
| Seattle | 22 | 1% |
| companies | share | |
|---|---|---|
| Self-employed | 203 | 6% |
| 2-10 employees | 534 | 15% |
| 11-50 employees | 784 | 22% |
| 51-200 employees | 879 | 25% |
| 201-500 employees | 418 | 12% |
| 501-1000 employees | 274 | 8% |
| 1001-5000 employees | 262 | 8% |
| 5001-10000 employees | 52 | 1% |
| 10,001+ employees | 87 | 2% |
| companies | share | |
|---|---|---|
| Technology & software | 1,611 | 46% |
| Business & finance services | 678 | 19% |
| Media & content | 213 | 6% |
| Consumer services & leisure | 200 | 6% |
| Manufacturing & industry | 192 | 5% |
| Public, community & associations | 176 | 5% |
| Health care | 111 | 3% |
| Commerce & trade | 105 | 3% |
| Property & construction | 63 | 2% |
| Hospitality & travel | 50 | 1% |
| Utilities & infrastructure | 36 | 1% |
| Transport, logistics & rental | 32 | 1% |
| postings · companies | |
|---|---|
| Sales | 605 · 287 |
| Software engineering | 553 · 301 |
| IT operations & business systems | 423 · 307 |
| Marketing & communications | 361 · 212 |
| Administration & office | 323 · 214 |
| Product, program & project management | 297 · 199 |
| Customer service & success | 285 · 219 |
| Human resources | 230 · 134 |
| Finance & accounting | 188 · 105 |
| healthcare clinical | 174 · 54 |
| Data & AI | 173 · 120 |
| logistics warehouse and transport | 133 · 65 |
Slack everywhere, and other tools here
All companies using Slack →
Companies hiring sales in United States →
Team chat compared →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
12,204 US companies show Slack: 9,224 carry it on their website or in their DNS records, 3,493 name it in their own job postings, 513 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/slack/united-states)
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.
Slack in United States: questions
Is this every US company on Slack?
It is every US company whose website, DNS records or own job postings show it: 12,204 in total. Companies that use Slack 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 Slack and United States, and open the people you want. Counting is free; the first 1,000 records are too.
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Every US company on Slack,
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