# Companies using F5

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.

Data as of November 9, 2026. Source: Sumble.

## Which companies name F5 in the most job posts?

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.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Tata Consultancy Services](https://sumble.com/orgs/tata-consultancy-services-tcs) | 628 | 194 | "Define firewall policies, segmentation, and load balancer migration from F5 to AWS." (Network Architect, Oct 24, 2026) |
| [NTT DATA, Inc.](https://sumble.com/orgs/ntt-global-data-centers-cbj1) | 581 | 43 | "…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 DATA](https://sumble.com/orgs/ntt-data) | 476 | 27 | " 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) |
| [Kyndryl](https://sumble.com/orgs/kyndryl) | 418 | 49 | "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) |
| [Capgemini](https://sumble.com/orgs/capgemini) | 415 | 61 | "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) |

## Is hiring for F5 growing?

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.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| 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.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 221 |
| June to August 2026 | 238 |
| October 2025 to August 2026 | 837 |

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 know | Companies | Share |
|---|---:|---:|
| Job posts name F5 | 7,851 | 63% |
| Employees' profiles list F5 | 4,652 | 37% |

## 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.

| Size | Share | Typical tech page |
|---|---:|---:|
| 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.

| 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.

| Team | Companies |
|---|---:|
| IT | 207 |
| Network engineering | 122 |
| Network | 105 |
| Network operations | 100 |
| Infrastructure | 92 |
| Network services | 59 |

## 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%.

| 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 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.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Global Software Solutions Group](https://sumble.com/orgs/gssgroups) | 6 |
| Commercial | [GlobalDots](https://sumble.com/orgs/globaldots) | 5 |
| Commercial | [CloudFulcrum](https://sumble.com/orgs/cloud-fulcrum) | 5 |
| Commercial | [AMISEQ](https://sumble.com/orgs/amiseq) | 4 |
| Commercial | [Tokyo Electron Device, Ltd.](https://sumble.com/orgs/tokyo-electron-device) | 4 |
| Mid-market | [Türkiye Emlak Katılım Bankası](https://sumble.com/orgs/emlakbank) | 3 |
| Mid-market | [Sands China](https://sumble.com/orgs/sandschina) | 3 |
| Mid-market | [Université de Sherbrooke](https://sumble.com/orgs/universite-de-sherbrooke) | 2 |
| Mid-market | [VIEWNEXT](https://sumble.com/orgs/viewnext) | 2 |
| Mid-market | [BRD - Groupe Societe Generale](https://sumble.com/orgs/brd-group) | 2 |
| Enterprise | [SACYR](https://sumble.com/orgs/sacyr) | 5 |
| Enterprise | [KBR, Inc.](https://sumble.com/orgs/kbr) | 4 |
| Enterprise | [New York Life](https://sumble.com/orgs/new-york-life) | 3 |
| Enterprise | [La Banque Postale](https://sumble.com/orgs/la-banque-postale) | 3 |
| Enterprise | [Garmin](https://sumble.com/orgs/garmin) | 3 |

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.

## 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%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Bluecoat | 320 | 6.2% | 0.27% | 23 times |
| Imperva | 302 | 5.8% | 0.39% | 15 times |
| Trellix | 622 | 12% | 0.9% | 13 times |
| Forcepoint | 432 | 8.3% | 0.64% | 13 times |
| Infoblox | 737 | 14% | 1.1% | 13 times |
| Brocade | 510 | 9.8% | 0.83% | 12 times |
| Cisco Viptela | 315 | 6.1% | 0.52% | 12 times |
| NX-OS | 366 | 7% | 0.61% | 12 times |

Shares are out of the 5,202 companies whose job posts name F5, not counting firms whose job posts name almost every technology.

## 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 theme | Job posts |
|---|---:|
| Digital Transformation | 3,611 |
| Security Infrastructure Modernization | 788 |
| Cloud Migration | 655 |
| Data Infrastructure Migration | 227 |

- "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.