Companies Using Hornetsecurity
59 companies use Hornetsecurity for their email. One row per company, 27 columns, delivered as a CSV. Updated 29 October 2026.
- 59companies
- 45with a named contact
- 111people with an email
- 11countries
installmap-companies-using-hornetsecurity.csv59 rows, 27 columns
| Company | Industry | Employees |
|---|---|---|
| U.S. Oral Surgery Management | Healthcare & Medical | 1001-5000 |
| Identiti | Business & Corporate Services | 501-1000 |
| Circle Square Consulting | IT Services | 11-50 |
| EnerSys Corporation | Energy & Utilities | 11-50 |
| WatchGuard Technologies | Computer & network security | 1001-5000 |
| Verlag Der Tagesspiegel | Newspaper publishing | 501-1000 |
| AnyDesk Software | Computer software | 201-500 |
| Signaturit Group a Na... | Information technolog... | 201-500 |
8 of the 59 rows, 3 of the 27 columns. Contacts, emails and job posts are in the file.
List of companies using Hornetsecurity
| Company | Domain | Industry | Employees | Country | Contacts | ||
|---|---|---|---|---|---|---|---|
| U.S. Oral Surgery Management | usosm.com | Healthcare & Medical | 1001-5000 | United States | 3 | i••••@usosm.com | yes |
| Identiti | identiti.net | Business & Corporate Services | 501-1000 | United States | 3 | s••••@identiti.net | yes |
| Circle Square Consulting | circlesquareconsulting.com | IT Services | 11-50 | United States | 2 | c••••@circlesquareconsulting.com | yes |
| EnerSys Corporation | enersyscorp.com | Energy & Utilities | 11-50 | United States | 1 | s••••@enersyscorp.com | yes |
| WatchGuard Technologies | watchguard.com | Computer & network security | 1001-5000 | United States | 3 | yes | |
| Verlag Der Tagesspiegel | tagesspiegel.de | Newspaper publishing | 501-1000 | Germany | 1 | yes | |
| AnyDesk Software | anydesk.com | Computer software | 201-500 | Germany | 3 | yes | |
| Signaturit Group a Namirial Company | signaturit.com | Information technology an... | 201-500 | Spain | 3 | yes | |
| Drips | drips.com | Software development | 51-200 | United States | 3 | yes | |
| knk Software | knkpublishingsoftware.com | Software development | 51-200 | United States | 3 | yes | |
| Spendit | spendit.de | Financial services | 51-200 | Germany | 3 | yes | |
| Omnora | slidepresenter.com | Software development | 11-50 | Germany | 3 | yes | |
| Hornetsecurity | altospam.com | Software development | 1001-5000 | Germany | 1 | ||
| Namirial | vialink.fr | Software development | 1001-5000 | Italy | 3 | ||
| heise online | heise.de | Online media | 501-1000 | Germany | 1 | ||
| CADFEM | cadfem.net | Software development | 201-500 | Germany | 3 | ||
| Exasol | exasol.com | Software development | 201-500 | Germany | 3 | ||
| Fittingbox | fittingbox.com | Software development | 201-500 | France | 3 | ||
| Heute | heute.at | Online media | 201-500 | Austria | 1 | ||
| MOBOTIX | mobotix.com | Information Technology an... | 201-500 | Germany | 3 | ||
| Natuvion | natuvion.com | IT Services and IT Consulting | 201-500 | Germany | 3 | ||
| Octime | octime.com | Software development | 201-500 | France | 2 | ||
| Proginov | proginov.com | Software development | 201-500 | France | 3 | ||
| Terminalfour | terminalfour.com | Software development | 201-500 | Ireland | 3 | ||
| Visualfabriq | visualfabriq.com | Software development | 201-500 | Netherlands | 3 |
25 of 59, largest companies first. Emails masked here. The CSV has them in full.
What stands out about Hornetsecurity users
- 49% of the companies using Hornetsecurity are in software development, against 28% of all 98,414 companies on Installmap's lists.
- 75% of the companies using Hornetsecurity also use Microsoft 365, against 15% of all companies on the lists. List
- 39% are based in Germany, against 4.0% of all companies on the lists.
All companies on the lists: 98,414 companies in the 364 Installmap tool lists. Source: Installmap, October 2026.
What is in the list
The 59 companies span 23 industries. The largest is software development with 29 companies (49%). 23 (39%) are based in Germany and 13 (22%) in the United States. 5 (8.5%) have more than 1,000 employees.
By industry
| Industry | Companies | Share |
|---|---|---|
| Software development | 29 | 49% |
| IT Services and IT Consulting | 4 | 6.8% |
| Online media | 2 | 3.4% |
| Information Technology and Services | 2 | 3.4% |
| Information technology and services | 2 | 3.4% |
| IT services and IT consulting | 2 | 3.4% |
| Healthcare & Medical | 1 | 1.7% |
| Computer & network security | 1 | 1.7% |
| Computer and Network Security | 1 | 1.7% |
| Business & Corporate Services | 1 | 1.7% |
| Newspaper publishing | 1 | 1.7% |
| Computer software | 1 | 1.7% |
By country
| Country | Companies | Share |
|---|---|---|
| Germany | 23 | 39% |
| United States | 13 | 22% |
| France | 7 | 12% |
| Austria | 3 | 5.1% |
| United Kingdom | 3 | 5.1% |
| Spain | 2 | 3.4% |
| Canada | 2 | 3.4% |
| Italy | 1 | 1.7% |
| Argentina | 1 | 1.7% |
| Ireland | 1 | 1.7% |
By employees
| Employees | Companies | Share |
|---|---|---|
| 11-50 | 17 | 29% |
| 51-200 | 17 | 29% |
| 201-500 | 14 | 24% |
| 501-1000 | 4 | 6.8% |
| 1001-5000 | 5 | 8.5% |
By named list
| Also on | Companies |
|---|---|
| Inc 5000 | 6 |
| SaaS | 49 |
| Tranco top 10k | 6 |
Source: Installmap, October 2026.
How Hornetsecurity use was found
We read the MX and SPF records of 75,722 company domains and found Hornetsecurity on 59. The companies come from six lists: the Fortune 500, the Inc 5000, unicorns, Y Combinator, a SaaS list and the Tranco top 10,000.
Industry, employee band and country were labelled by a language model from each company's homepage, since the company databases we tried match big companies to the wrong record (one listed Principal Financial Group as a food producer with 11 to 50 staff). We checked 200 random rows against each company's homepage with a second, larger model: industry was wrong on 2.6%, country on 2.1%, and the employee band was off by one band on 12% and by two or more on 2.0% of rows. Inc 5000 and Y Combinator companies keep the figures they filed themselves.
The list is not every Hornetsecurity customer. A company that uses Hornetsecurity only internally and never names it in a job post or loads it on its homepage is not on it. Method. Source: Installmap, October 2026.
Columns
| Column | Rows with a value | Filled |
|---|---|---|
company | 59 | 100% |
domain | 59 | 100% |
industry | 58 | 98% |
employees | 57 | 97% |
country | 57 | 97% |
region | 21 | 36% |
city | 21 | 36% |
founded | 13 | 22% |
email | 5 | 8% |
phone | 4 | 7% |
linkedin | 12 | 20% |
x | 2 | 3% |
email_provider | 48 | 81% |
lists | 59 | 100% |
source | 59 | 100% |
job_title | 0 | 0% |
job_url | 0 | 0% |
job_posted | 0 | 0% |
contact_1_name | 45 | 76% |
contact_1_email | 45 | 76% |
contact_1_linkedin | 45 | 76% |
Hornetsecurity users by list
| List | Crawled | Using Hornetsecurity | Share |
|---|---|---|---|
| Inc 5000 (2026) | 4,888 | 6 | 0.1% |
| Y Combinator companies | 5,388 | n/a | n/a |
| Fortune 500 | 472 | n/a | n/a |
| Unicorns | 1,000 | n/a | n/a |
| SaaS companies | 8,048 | n/a | n/a |
| Tranco top 10,000 | 1,572 | n/a | n/a |
Source: Installmap homepage crawl, 4 September 2026.
Companies using Hornetsecurity also use
| Tool | Companies on both lists | Share of the Hornetsecurity list |
|---|---|---|
| Microsoft 365 | 44 | 75% |
Tools ranked by how much more often Hornetsecurity users run them than all companies on the lists do. Source: Installmap, October 2026.
Hornetsecurity alternatives
| Email Security | Companies | Price |
|---|---|---|
| Companies using Proofpoint | 2,130 | $99 |
| Companies using Mimecast | 935 | $49 |
| Companies using Barracuda Email Protection | 316 | $49 |
| Companies using AppRiver | 92 | $49 |
| Companies using Trend Micro Email Security | 68 | $49 |
| Companies using Cloudflare Email Security | 48 | $49 |
| Companies using Sophos Email | 48 | $49 |
| Companies using SpamTitan | 45 | $49 |
Questions
How many companies use Hornetsecurity?
This list holds 59. 59 were found in the MX and SPF records.
What does a row hold?
Company name, domain, industry, employee band, country, region, city, founding year, the email address and phone number the company publishes on its website, LinkedIn and X pages, the email provider and the named lists the company is on. Up to three named people per company come with name, email and LinkedIn: 45 rows (76%) have at least one.
How fresh is it?
Homepages were crawled on 4 September 2026. The list was built on 29 October 2026.
What do I get after paying?
One UTF-8 CSV with a header row and one row per company, in the 27 columns above. The download link opens right after the card payment and stays valid, so you can download again later.
How does the free sample work?
Enter your email above and we send a link to a CSV of 20 companies from this list with all 27 columns, including the named contacts.
Who uses a list like this?
Vendors whose product integrates with or replaces Hornetsecurity, agencies and consultants that work on Hornetsecurity, and recruiters looking for people with Hornetsecurity experience. The industry, employee and country columns let you cut the list to your market before you import it.