# Companies using Arista EOS

561 companies use Arista EOS, based on their job posts and their employees' public profiles. From October 2025 to August 2026, 338 job posts named it. Network Engineer roles mention it most.

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

## Which companies name Arista EOS in the most job posts?

The five companies with the most job posts naming Arista EOS are Luxoft, Arista Networks, Oracle, Cloudflare and Intel. Luxoft is the newest of the five companies in the table, with its first job post naming it in September 2024.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Luxoft](https://sumble.com/orgs/luxoft) | 104 | 0 | "Familiarity with multiple Network Operating Systems such as Cisco NXOS, Arista EOS, Cumulus Linux, OpenSwitch, SONiC" (Regular Support Network Engineer with automation (Python), Feb 1, 2026) |
| [Arista Networks](https://sumble.com/orgs/arista-networks) | 73 | 23 | "You will own complex technical cases end-to-end, helping customers realize the full value of Arista EOS, CloudVision, and CV-CUE (CloudVision Cognitive Unified Edge)." (Technical Solutions Engineer, Campus & WiFi-focused - Sydney, Jun 12, 2026) |
| [Oracle](https://sumble.com/orgs/oracle) | 33 | 2 | "Experience with network operating systems and hardware platforms such as Arista EOS, Cisco Nexus/NX-OS, NVIDIA Spectrum/Cumulus, or comparable platforms." (Principal Network Developer - Nashville, Nov 3, 2026) |
| [Cloudflare](https://sumble.com/orgs/cloudflare) | 33 | 1 | "Professional level network certification(s) (JNCIP, CCNP, etc) or higherGood working knowledge of Juniper Junos, Cisco IOS, Cisco NX-OS and Arista EOS" (network deployment engineer, Feb 3, 2026) |
| [Intel](https://sumble.com/orgs/intel) | 19 | 2 | "DC L2 and L3 devices administration: switches and routers Arista EOS, Cisco IOS, Sonic is a plus.…" (Senior Site Reliability Engineer, Mar 30, 2025) |

## Is hiring for Arista EOS growing?

From March to May 2026, 0.16 in every 10,000 job posts named Arista EOS; from June to August, 0.19 in every 10,000 job posts. These are small numbers of job posts, so a few companies can move them.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 19 | 1,413,673 | 0.13 |
| Nov 2025 | 38 | 1,822,119 | 0.21 |
| Dec 2025 | 24 | 1,236,103 | 0.19 |
| Jan 2026 | 34 | 1,828,002 | 0.19 |
| Feb 2026 | 36 | 1,856,647 | 0.19 |
| Mar 2026 | 29 | 1,850,711 | 0.16 |
| Apr 2026 | 31 | 1,728,886 | 0.18 |
| May 2026 | 24 | 1,821,509 | 0.13 |
| Jun 2026 | 45 | 1,909,496 | 0.24 |
| Jul 2026 | 27 | 1,815,180 | 0.15 |
| Aug 2026 | 31 | 1,835,698 | 0.17 |

## How many companies named Arista EOS in a job post for the first time in recent months?

Arista EOS showed up in job posts at 44 companies for the first time from June to August 2026, and 22 in the three months before. From October 2025 to August 2026, 95 companies named it in a job post for the first time.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 22 |
| June to August 2026 | 44 |
| October 2025 to August 2026 | 95 |

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 Arista EOS?

For Arista EOS, the evidence comes mostly from job posts. 390 companies name it in their own posts. 43 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Arista EOS | 390 | 70% |
| Employees' profiles list Arista EOS | 171 | 30% |

## What size are the companies that use Arista EOS?

35% of Arista EOS users are companies with 50 to 999 employees, and companies with more than 5,000 employees make up 32%, a high share for a tech page. 99 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 18% | 22% |
| 50 to 999 | 35% | 38% |
| 1,000 to 5,000 | 15% | 17% |
| Over 5,000 | 32% | 23% |

## Where are Arista EOS companies based?

The United States dominates for Arista EOS, with 65% of the companies that use it. India is second, at 6.5%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 350 | 65% | 43% |
| India | 35 | 6.5% | 6.9% |
| United Kingdom | 28 | 5.2% | 6.4% |
| Canada | 18 | 3.3% | 3.6% |
| Germany | 16 | 3% | 4.4% |
| France | 12 | 2.2% | 4.6% |

## Which teams work with Arista EOS?

Arista EOS sits mostly with network engineering teams (20 companies).

| Team | Companies |
|---|---:|
| Network engineering | 20 |
| Security | 6 |
| Enterprise computing | 5 |
| IT | 5 |
| Cisco customer experience | 3 |
| Ens platform engineering | 3 |

## Which roles mention Arista EOS most?

Network Engineer roles make up 50.3% of the job posts that name Arista EOS. Network Engineer posts naming it numbered 39 from March to May 2026 and 50 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Network Engineer | 50.3% | 170 | 39 | 50 |
| DevOps Engineer | 4.1% | 14 | 1 | 2 |
| Hardware Engineer | 3.6% | 12 | 7 | 4 |
| Software Engineer | 3.6% | 12 | 1 | 2 |
| Network Administrator | 2.4% | 8 | 3 | 1 |
| Telecommunications Engineer | 2.4% | 8 | 0 | 2 |

## Which companies started naming Arista EOS in job posts recently?

46 companies with 50 or more employees started naming Arista EOS in job posts between April and August 2026. 13 of them have more than 5,000 employees. Another 3 were AI-native companies, which we list separately.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [OpenAI](https://sumble.com/orgs/openai) | 1 |
| AI native | [Mistral](https://sumble.com/orgs/mistralai) | 1 |
| AI native | [Sciforium](https://sumble.com/orgs/sciforium) | 1 |
| Commercial | [Excis Compliance](https://sumble.com/orgs/excis) | 4 |
| Commercial | [Intelliswift - An LTTS Company](https://sumble.com/orgs/intelliswift-software) | 2 |
| Commercial | [Nicolet National Bank](https://sumble.com/orgs/nicolet-national-bank) | 2 |
| Commercial | [ESP Global Services](https://sumble.com/orgs/esp-global-services) | 2 |
| Commercial | [Strive Compounding Pharmacy](https://sumble.com/orgs/strive-compounding-pharmacy) | 2 |
| Mid-market | [CareSource](https://sumble.com/orgs/caresource) | 3 |
| Mid-market | [CBTS](https://sumble.com/orgs/cbts) | 3 |
| Mid-market | [Brookfield Properties](https://sumble.com/orgs/brookfield-properties) | 1 |
| Mid-market | [The Trade Desk](https://sumble.com/orgs/trade-desk) | 1 |
| Mid-market | [Point72](https://sumble.com/orgs/point72-asset-management-l-p) | 1 |
| Enterprise | [Roche](https://sumble.com/orgs/roche) | 3 |
| Enterprise | [Merck](https://sumble.com/orgs/merck) | 3 |
| Enterprise | [DBS Bank](https://sumble.com/orgs/dbs-bank) | 2 |
| Enterprise | [Ascendion](https://sumble.com/orgs/ascendion) | 2 |
| Enterprise | [Amazon](https://sumble.com/orgs/amazon) | 1 |

Companies that named Arista EOS 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 Arista EOS companies use?

SevOne, Cisco IOS-XR and JUNOS show up far more often at Arista EOS companies than at companies of the same size. Next is SONiC: 12% of these companies use it, against 0.14% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| SevOne | 14 | 7.4% | 0.06% | 123 times |
| Cisco IOS-XR | 32 | 17% | 0.15% | 112 times |
| JUNOS | 58 | 31% | 0.32% | 97 times |
| SONiC | 23 | 12% | 0.14% | 86 times |
| RESTCONF | 15 | 8% | 0.11% | 74 times |
| NETCONF | 31 | 16% | 0.23% | 71 times |
| Cumulus | 10 | 5.3% | 0.08% | 65 times |
| Cisco IOS-XE | 35 | 19% | 0.3% | 62 times |

Shares are out of the 188 companies whose job posts name Arista EOS, not counting firms whose job posts name almost every technology.

## Which project themes come up in Arista EOS job posts?

13 job posts naming Arista EOS describe Security Infrastructure Modernization work, the most common theme after broad digital transformation. After that comes Cloud Migration, with 6.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 117 |
| Security Infrastructure Modernization | 13 |
| Cloud Migration | 6 |
| Generative AI | 3 |

## 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.