3,803 companies name Cisco IOS in their own job posts. Its share of job posts held steady in the three months to August 2026; 2,792 job posts named it from October 2025 to August 2026. IT teams are its most common home.
Which companies name Cisco IOS in the most job posts?
Amazon Web Services (AWS), Amazon and General Dynamics Information Technology are among the companies with the most job posts naming Cisco IOS. 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 20239821,071
"Knowledge of major Command Line Protocols (Cisco IOS, JunOS, GNU/Linux) and common Networking Protocols (BGP, OSPF)"Network Deployment Technician, DCC Communities, Nov 7, 2026
AmazonRetail Trade · first seen Jul 2022770477
"4+ years of Windows/Server administration, Linux administration, or Cisco IOS (CLI)"Senior Network & Systems Engineer- Lead - Saudi Nationals, OTS, Nov 6, 2026
General Dynamics Information TechnologyProfessional Services · first seen Aug 2022453262
"Cisco IOS, Internet Protocol Security (IPsec), Linux, Network Monitoring Tools, Routing and Switching"Senior Network Engineer, Oct 24, 2026
LeidosProfessional Services · first seen Jul 2022435264
"Experience with Cisco IOS XR, JUNOS, and Cisco IOS codes."Senior Network Software Engineer, Oct 24, 2026
Aventiv TechnologiesScientific and Technical Services · first seen Aug 20222643
"Experience working with Windows OS, VOIP, Adtran Fortinet, AOS, Cisco IOS and wireless technology"Field Service Technician II CA, Nov 4, 2026
Cisco IOS holds a steady place in hiring. 1.5 in every 10,000 job posts named it from June to August 2026, against 1.4 from March to May. Its busiest month was February 2026, at 1.7.
Show the data
Month
Job posts naming Cisco IOS
All job posts
Per 10,000
Oct 2025
219
1,413,673
1.5
Nov 2025
272
1,822,119
1.5
Dec 2025
171
1,236,103
1.4
Jan 2026
242
1,828,002
1.3
Feb 2026
319
1,856,647
1.7
Mar 2026
277
1,850,711
1.5
Apr 2026
234
1,728,886
1.4
May 2026
248
1,821,509
1.4
Jun 2026
253
1,909,496
1.3
Jul 2026
297
1,815,180
1.6
Aug 2026
260
1,835,698
1.4
How many companies named Cisco IOS in a job post for the first time in recent months?
From June to August 2026, 82 companies posted their first job naming Cisco IOS; 94 did from March to May. Over the 11 months from October 2025, 337 companies posted their first job naming it.
March to May 202694
June to August 202682
October 2025 to August 2026337
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 Cisco IOS?
3,803 companies name Cisco IOS in job posts they wrote; employees' profiles add 52,019 more. 1,889 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Cisco IOS
3,8036.8%
Employees' profiles list Cisco IOS
52,01993%
55,822 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Cisco IOS?
Companies with 50 to 999 employees are the largest group of Cisco IOS users, at 42%. 575 of its companies have more than 5,000 employees. These counts cover the 3,803 companies whose job posts name it.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
25%26%
50 to 999
42%37%
1,000 to 5,000
18%15%
Over 5,000
15%22%
Where are Cisco IOS companies based?
Cisco IOS is concentrated in the United States, home to 70% of the companies that use it. Canada is second, at 4%. These shares cover the 3,803 companies whose job posts name it.
ShareTypical
United States
70%48%
Canada
4%3.8%
United Kingdom
3.7%6.3%
India
3.1%7.5%
France
2.3%5%
Germany
2%4.4%
Companies in 73 countries and territories. Shares are of companies with a known headquarters country. Counts companies whose job posts name it.
Show the data
Country
Companies
Share
Typical tech page
United States
2,422
70%
48%
Canada
141
4%
3.8%
United Kingdom
128
3.7%
6.3%
India
107
3.1%
7.5%
France
80
2.3%
5%
Germany
70
2%
4.4%
Which teams work with Cisco IOS?
At 172 companies, the team named in Cisco IOS job posts is IT, at least twice the next. Next come network engineering teams (80 companies) and network teams (41).
TeamCompanies
IT
172
Network engineering
80
Network
41
Infrastructure
34
NOC
29
Network operations
28
What else do Cisco IOS companies use?
Cisco IOS companies are 41 times as likely as similar companies to use JUNOS: 12% of them, against 0.3%. Cisco IOS-XR is 37 times as common as usual, at 5.2%.
Share of the 2,599 Cisco IOS companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Cisco IOS in job posts recently?
From April to August 2026, 109 companies with 50 or more employees posted their first job naming Cisco IOS: 69 commercial, 22 mid-market and 18 enterprise. KPMG Philippines has the most job posts of the new mid-market companies, 10 from April to August.
Companies that named Cisco IOS 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 Cisco IOS most?
Network Engineer is the most common role, in 27% of job posts naming Cisco IOS. The top four roles cover 51% of these job posts.
RoleSharePosts
Network Engineer
27%754
Network Administrator
8.3%232
Skilled Trades
8.1%226
IT Support
8%222
Network Operations Engineer
4.4%123
DevOps Engineer
4.1%115
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Network Engineer
27%
754
196
182
Network Administrator
8.3%
232
64
66
Skilled Trades
8.1%
226
51
58
IT Support
8%
222
51
69
Network Operations Engineer
4.4%
123
26
44
DevOps Engineer
4.1%
115
29
41
Which project themes come up in Cisco IOS job posts?
Setting aside broad digital transformation, Security Infrastructure Modernization is the theme teams hiring for Cisco IOS mention most, in 65 job posts. Cloud Migration is next, in 52 job posts.
Project themeJob posts
Digital Transformation1,244
Security Infrastructure Modernization65
Cloud Migration52
Cloud Cost Optimization34
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.
