12,503 companies in our data use F5, and 7,851 of them name it in job posts they wrote. Hiring for it is steady, with 8,149 job posts naming it from October 2025 to August 2026. IT teams are its most common home.
Tata Consultancy Services, NTT DATA, Inc. and NTT DATA mention F5 in the most job posts. Of the five companies in the table, Tata Consultancy Services has the most employees who list it on their profiles: 194.
CompanyPostsPeopleRecent job post
Tata Consultancy ServicesProfessional Services · first seen Jul 2023628194
"Define firewall policies, segmentation, and load balancer migration from F5 to AWS."Network Architect, Oct 24, 2026
NTT DATA, Inc.Scientific and Technical Services · first seen Dec 202358143
"…across technologies including Cisco routing and switching, Check Point firewalls, F5 load balancing, DNS, Zscaler and cloud networking."Network Security Engineer, Nov 1, 2026
NTT DATAProfessional Services · first seen Jul 202247627
" Highly experience architect with proven knowledge on products likes Firewalls (Palo Alto), F5, Prisma SASE, EIGRP, OSPF, BGP and switching technologies."Firewall, VPN, IDS/IPS - Networking Advisor, Nov 6, 2026
KyndrylProfessional Services · first seen Aug 202241849
"Overall Minimum 10 years of hands-on experience in designing, configuring, and maintaining F5, Citrix, DNS, DHCP, and IPAM solutions."infrastructure cloud architect, Nov 1, 2026
CapgeminiProfessional Services · first seen Aug 202241561
"Design and configuration of telco grade firewalls and security policy management, preferably Fortinet, F5 and checkpoint firewalls."Senior IP Core Network Engineer | MPLS | BGP | Tier-1 Telco, Nov 1, 2026
F5 holds a steady place in hiring. 4.1 in every 10,000 job posts named it from June to August 2026, against 4.3 from March to May. Its busiest month was January 2026, at 4.7.
Show the data
Month
Job posts naming F5
All job posts
Per 10,000
Oct 2025
595
1,413,673
4.2
Nov 2025
806
1,822,119
4.4
Dec 2025
524
1,236,103
4.2
Jan 2026
862
1,828,002
4.7
Feb 2026
792
1,856,647
4.3
Mar 2026
853
1,850,711
4.6
Apr 2026
672
1,728,886
3.9
May 2026
789
1,821,509
4.3
Jun 2026
831
1,909,496
4.4
Jul 2026
718
1,815,180
4.0
Aug 2026
707
1,835,698
3.9
How many companies named F5 in a job post for the first time in recent months?
Job posts named F5 for the first time at 238 companies from June to August 2026, against 221 from March to May. Of the 7,851 companies whose job posts name it, 3% first named it from June to August.
March to May 2026221
June to August 2026238
October 2025 to August 2026837
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 F5?
7,851 companies name F5 in job posts they wrote, and employees' profiles add 4,652 more. 1,602 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name F5
7,85163%
Employees' profiles list F5
4,65237%
12,503 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use F5?
39% of F5 users are companies with 50 to 999 employees, the largest size group. 2,013 of its companies have more than 5,000 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
24%22%
50 to 999
39%38%
1,000 to 5,000
21%17%
Over 5,000
16%23%
Where are F5 companies based?
The United States alone has 41% of F5 companies; the rest are spread across 135 other countries and territories.
ShareTypical
United States
41%43%
France
5.4%4.6%
India
5.3%6.9%
United Kingdom
4.9%6.4%
Canada
3%3.6%
Australia
2.7%2.2%
Companies in 136 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
4,801
41%
43%
France
624
5.4%
4.6%
India
615
5.3%
6.9%
United Kingdom
564
4.9%
6.4%
Canada
347
3%
3.6%
Australia
316
2.7%
2.2%
Which teams work with F5?
F5 job posts name IT and network engineering teams at 207 and 122 companies. Third is network, at 105 companies.
TeamCompanies
IT
207
Network engineering
122
Network
105
Network operations
100
Infrastructure
92
Network services
59
What else do F5 companies use?
F5 companies are 23 times as likely as similar companies to use Bluecoat: 6.2% of them, against 0.27%. Imperva is 15 times as common as usual, at 5.8%.
Share of the 5,202 F5 companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming F5 in job posts recently?
Between April and August 2026, F5 appeared for the first time in job posts at 263 companies: 146 commercial, 70 mid-market and 47 enterprise. Global Software Solutions Group leads the new commercial companies, with 6 job posts from April to August.
Companies that named F5 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 F5 most?
No single role dominates for F5; Network Engineer leads with 25% of the job posts. Network Security Engineer is second, at 8.1%.
RoleSharePosts
Network Engineer
25%1,997
Network Security Engineer
8.1%660
Security Engineer
5%411
Network Administrator
4.8%389
IT Support
3.9%316
Network Operations Engineer
2.8%227
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Network Engineer
25%
1,997
570
557
Network Security Engineer
8.1%
660
170
182
Security Engineer
5%
411
113
103
Network Administrator
4.8%
389
93
113
IT Support
3.9%
316
81
65
Network Operations Engineer
2.8%
227
74
57
Which project themes come up in F5 job posts?
Setting aside broad digital transformation, Security Infrastructure Modernization is the theme teams hiring for F5 mention most, in 788 job posts. Broad digital transformation work shows up in 3,611 of its job posts.
Project themeJob posts
Digital Transformation3,611
Security Infrastructure Modernization788
Cloud Migration655
Data Infrastructure Migration227
"Lead migration of F5 load balancing and WAF solutions to AWS-native alternatives"
Ravh-IT, Senior Network Architect, Nov 7, 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.
