# Companies using NX-OS

3,291 companies in our data use NX-OS, and 1,751 of them name it in job posts they wrote. Its share of job posts held steady in the three months to August 2026; 1,164 job posts named it from October 2025 to August 2026. Network Engineer roles mention it most.

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

## Which companies name NX-OS in the most job posts?

Cisco, Luxoft and Tata Consultancy Services are among the companies with the most job posts naming NX-OS. Of the five companies in the table, Cisco has the most employees who list it on their profiles: 253.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Cisco](https://sumble.com/orgs/cisco-systems) | 233 | 253 | "…customers across the NetOps and NetSecOps boundary the Smart Switch builds, where NX-OS manages the network fabric and Hypershield governs the security policy enforced on the switch." (Sr. Customer Success Solutions Architect (Remote), Nov 7, 2026) |
| [Luxoft](https://sumble.com/orgs/luxoft) | 135 | 0 | "Hands-on experience with at least one of the following vendors' products for 1 year minimum: Cisco IOS/NXOS, Arista, Cumulus." (Regular Support Network Engineer with automation (Python), Feb 1, 2026) |
| [Tata Consultancy Services](https://sumble.com/orgs/tata-consultancy-services-tcs) | 124 | 11 | "…with structured cabling, various transceivers, core routing and switching (preferable Cisco NXOS and Arista EOS), basic understanding of servers and various NIC cards, Lab management experience a plus…" (network lab engineer, Sep 12, 2026) |
| [Amazon](https://sumble.com/orgs/amazon) | 93 | 13 | "Experience operating and troubleshooting major network platforms and operating systems including Cisco IOS, IOS-XE, NX-OS, and/or Aruba AOS" (Network Development Engineer, Office Network Reliability Engineering, May 23, 2026) |
| [General Dynamics Information Technology](https://sumble.com/orgs/general-dynamics-information-technology) | 81 | 7 | "Scheduling, testing, and performing operating system upgrades and security patches across Cisco IOS, IOS-XE, and NX-OS devices while validating pre- and post-upgrade operational stability" (network engineer, Sep 12, 2026) |

## Is hiring for NX-OS growing?

Since late 2025, job posts mentioning NX-OS went from 0.67 to 0.55 in every 10,000 job posts, and the last three months were flat. Its busiest month was January 2026, at 0.75.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 95 | 1,413,673 | 0.67 |
| Nov 2025 | 130 | 1,822,119 | 0.71 |
| Dec 2025 | 76 | 1,236,103 | 0.61 |
| Jan 2026 | 138 | 1,828,002 | 0.75 |
| Feb 2026 | 120 | 1,856,647 | 0.65 |
| Mar 2026 | 97 | 1,850,711 | 0.52 |
| Apr 2026 | 103 | 1,728,886 | 0.60 |
| May 2026 | 99 | 1,821,509 | 0.54 |
| Jun 2026 | 99 | 1,909,496 | 0.52 |
| Jul 2026 | 105 | 1,815,180 | 0.58 |
| Aug 2026 | 102 | 1,835,698 | 0.56 |

## How many companies named NX-OS in a job post for the first time in recent months?

In the three months to August 2026, 55 companies posted about NX-OS for the first time. From March to May, 54 did. That brings the companies naming it for the first time since October 2025 to 203, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 54 |
| June to August 2026 | 55 |
| October 2025 to August 2026 | 203 |

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 NX-OS?

The evidence for NX-OS is close to even: 53% of these companies name it in job posts, and 47% come from employees' profiles. 236 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name NX-OS | 1,751 | 53% |
| Employees' profiles list NX-OS | 1,540 | 47% |

## What size are the companies that use NX-OS?

37% of NX-OS users are companies with 50 to 999 employees, close to the mix on the typical tech page. The second-largest group is companies with more than 5,000 employees, at 24%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 18% | 22% |
| 50 to 999 | 37% | 38% |
| 1,000 to 5,000 | 21% | 17% |
| Over 5,000 | 24% | 23% |

## Where are NX-OS companies based?

The United States dominates for NX-OS, with 55% of the companies that use it. Its companies are based in 98 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,707 | 55% | 43% |
| United Kingdom | 183 | 5.9% | 6.4% |
| France | 139 | 4.5% | 4.6% |
| India | 132 | 4.2% | 6.9% |
| Canada | 116 | 3.7% | 3.6% |
| Germany | 87 | 2.8% | 4.4% |

## Which teams work with NX-OS?

Network engineering teams are the most common home for NX-OS, at 53 companies, followed by IT and network. Network operations teams come fourth, at 21 companies.

| Team | Companies |
|---|---:|
| Network engineering | 53 |
| IT | 40 |
| Network | 27 |
| Network operations | 21 |
| Infrastructure | 19 |
| Network services | 13 |

## Which roles mention NX-OS most?

NX-OS shows up across many roles. The top one, Network Engineer, has 40% of the job posts. Network Engineer posts naming it numbered 105 from March to May 2026 and 116 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Network Engineer | 40% | 463 | 105 | 116 |
| Network Administrator | 8.1% | 94 | 24 | 23 |
| Network Operations Engineer | 5.2% | 61 | 15 | 16 |
| Software Engineer | 4.2% | 49 | 14 | 11 |
| IT Support | 2.3% | 27 | 6 | 5 |
| Consultant | 2.2% | 26 | 3 | 8 |

## Which companies started naming NX-OS in job posts recently?

From April to August 2026, 65 companies with 50 or more employees posted their first job naming NX-OS: 38 commercial, 15 mid-market and 12 enterprise. CommIT Enterprises, Inc. leads the new commercial companies, with 7 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [CommIT Enterprises, Inc.](https://sumble.com/orgs/commit-enterprises) | 7 |
| Commercial | [Excis Compliance](https://sumble.com/orgs/excis) | 4 |
| Commercial | [Royce Geo](https://sumble.com/orgs/roycegeo) | 4 |
| Commercial | [CAPFI Groupe](https://sumble.com/orgs/capfi) | 3 |
| Commercial | [Trantor](https://sumble.com/orgs/trantor-software) | 2 |
| Mid-market | [KBR Careers](https://sumble.com/orgs/kbr-careers) | 2 |
| Mid-market | [eir Ireland](https://sumble.com/orgs/eir-48816932) | 2 |
| Mid-market | [Trident Seafoods](https://sumble.com/orgs/trident-seafoods) | 2 |
| Mid-market | [HENSOLDT](https://sumble.com/orgs/hensoldt) | 1 |
| Mid-market | [Point72](https://sumble.com/orgs/point72-asset-management-l-p) | 1 |
| Enterprise | [F5](https://sumble.com/orgs/f5) | 4 |
| Enterprise | [DBS Bank](https://sumble.com/orgs/dbs-bank) | 2 |
| Enterprise | [Orange Business](https://sumble.com/orgs/orange-business) | 1 |
| Enterprise | [Bunge](https://sumble.com/orgs/bunge) | 1 |
| Enterprise | [Epic](https://sumble.com/orgs/epic) | 1 |

Companies that named NX-OS 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 NX-OS companies use?

Cisco IOS-XR and Cisco IOS-XE are the tools most closely tied to NX-OS. Arista EOS is 50 times as common as usual, at 5.3%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Cisco IOS-XR | 168 | 17% | 0.16% | 108 times |
| Cisco IOS-XE | 265 | 27% | 0.32% | 84 times |
| Arista EOS | 52 | 5.3% | 0.1% | 50 times |
| Cisco IOS | 473 | 48% | 1.3% | 36 times |
| JUNOS | 103 | 10% | 0.33% | 31 times |
| Cisco SDA | 66 | 6.7% | 0.28% | 24 times |
| NETCONF | 51 | 5.2% | 0.24% | 21 times |
| DMVPN | 120 | 12% | 0.58% | 21 times |

Shares are out of the 988 companies whose job posts name NX-OS, not counting firms whose job posts name almost every technology.

## Which project themes come up in NX-OS job posts?

395 job posts naming NX-OS describe broad digital transformation, and 54 describe Security Infrastructure Modernization work. After that comes Cloud Migration, with 29.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 395 |
| Security Infrastructure Modernization | 54 |
| Cloud Migration | 29 |
| Cloud Cost Optimization | 11 |

## 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.