We found 14,814 companies that use Xen. 1,674 of them name it in their own job posts, and the rest through employees' public profiles. Its share of job posts held steady in the three months to August 2026; 1,159 job posts named it from October 2025 to August 2026. It comes up most in Software Engineer job posts.
Amazon Web Services (AWS) and Amazon have the most job posts naming Xen, with 483 and 395. Amazon Web Services (AWS) is the newest of the five companies in the table, with its first job post naming it in December 2023.
CompanyPostsPeopleRecent job post
Amazon Web Services (AWS)Information · first seen Dec 2023483231
"Linux server and XEN service virtualization troubleshooting"Data Center Operations Engineer, ICN - DCO, Nov 4, 2026
AmazonRetail Trade · first seen Jul 202239560
"Experience with virtualization (Hypervisors, VMware, Xen), or experience in Linux/RHEL"Amazon Dedicated Cloud Engineer, US ADC Security, Nov 1, 2026
AMDManufacturing · first seen Sep 202219030
"Support virtualization and compute platforms such as Xen, VMware, or comparable environments, including host health, guest dependencies, resource allocation, and recovery validation."Infrastructure Systems Engineer, Oct 24, 2026
OracleScientific and Technical Services · first seen Aug 2022188175
"Knowledge and experience of Xen tools/environment"Technical Analyst 3-Support, Jan 13, 2026
Palo Alto NetworksScientific and Technical Services · first seen Nov 202214644
"Virtualization technologies – ESX, KVM, Xen, Microsoft preferred"technical sales manager (pre-sales systems engineer), sd-wan, Jun 30, 2026
Hiring for Xen barely changed, at 0.57 in every 10,000 job posts from June to August 2026 against 0.62 from March to May. Its busiest month was March 2026, at 0.70.
Show the data
Month
Job posts naming Xen
All job posts
Per 10,000
Oct 2025
77
1,413,673
0.54
Nov 2025
124
1,822,119
0.68
Dec 2025
73
1,236,103
0.59
Jan 2026
117
1,828,002
0.64
Feb 2026
117
1,856,647
0.63
Mar 2026
129
1,850,711
0.70
Apr 2026
101
1,728,886
0.58
May 2026
103
1,821,509
0.57
Jun 2026
109
1,909,496
0.57
Jul 2026
91
1,815,180
0.50
Aug 2026
118
1,835,698
0.64
How many companies named Xen in a job post for the first time in recent months?
From June to August 2026, 39 companies posted their first job naming Xen; 42 did from March to May. Over the 11 months from October 2025, 141 companies posted their first job naming it.
March to May 202642
June to August 202639
October 2025 to August 2026141
Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.
How do we know which companies use Xen?
Most of these companies come from employees' profiles: 89% have no job post naming Xen. 1,674 name it in their own job posts.
How we knowCompaniesShare
Job posts name Xen
1,67411%
Employees' profiles list Xen
13,14089%
14,814 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Xen?
Xen skews toward smaller firms. 27% of its users are companies with fewer than 50 employees, against 22% on the typical tech page. 1,825 of its companies have more than 5,000 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
27%22%
50 to 999
43%38%
1,000 to 5,000
18%17%
Over 5,000
12%23%
Where are Xen companies based?
Xen has an unusually large following in Brazil: 6.4% of its companies, against 2.8% on the typical tech page. Its companies are based in 135 countries and territories.
ShareTypical
United States
32%43%
United Kingdom
6.6%6.4%
Brazil
6.4%2.8%
France
5.1%4.6%
Germany
5%4.4%
The Netherlands
4%2%
Companies in 135 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
4,539
32%
43%
United Kingdom
939
6.6%
6.4%
Brazil
907
6.4%
2.8%
France
726
5.1%
4.6%
Germany
711
5%
4.4%
The Netherlands
564
4%
2%
Which teams work with Xen?
Xen work is spread across teams. IT leads, at 26 companies. Infrastructure and engineering teams come next, at 14 and 11 companies.
TeamCompanies
IT
26
Infrastructure
14
Engineering
11
Eet
9
Operations
9
DevOps
8
What else do Xen companies use?
Compared with companies of the same size, Xen companies stand out for using Red Hat KVM and LXC. Oracle ZFS is 29 times as common as usual, at 5.8%.
Share of the 996 Xen companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Xen in job posts recently?
Between April and August 2026, Xen appeared for the first time in job posts at 42 companies: 25 commercial, 9 mid-market and 8 enterprise. Oak Grove Technologies leads the new commercial companies, with 6 job posts from April to August.
Companies that named Xen in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.
Which roles mention Xen most?
Software Engineer is the most common role, in 14% of job posts naming Xen. Software Engineer posts naming it numbered 53 from March to May 2026 and 50 from June to August.
RoleSharePosts
Software Engineer
14%164
IT Support
8%93
Systems Engineer
6.6%77
Data Center Engineer
5.2%60
Software Development Engineer in Test
3.3%38
Administrator
3.2%37
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Software Engineer
14%
164
53
50
IT Support
8%
93
21
28
Systems Engineer
6.6%
77
25
16
Data Center Engineer
5.2%
60
17
31
Software Development Engineer in Test
3.3%
38
11
6
Administrator
3.2%
37
8
6
Which project themes come up in Xen job posts?
Setting aside broad digital transformation, Cloud Migration is the theme teams hiring for Xen mention most, in 85 job posts. Data Infrastructure Migration is next, in 61 job posts.
Project themeJob posts
Digital Transformation495
Cloud Migration85
Data Infrastructure Migration61
Cloud Cost Optimization48
"Migration from VMware to Xen experience preferred"
Information Systems Solutions, Inc., Senior Virtualization & Storage Engineer, Oct 24, 2026
About this data
Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.
Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.
Sumble has a free plan, and the same data is available through its API and MCP server.
A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.
Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.
