# Companies using OpenX

1,093 companies in our data use OpenX, and 141 of them name it in job posts they wrote. 88 job posts named it from October 2025 to August 2026. Account Manager roles mention it most.

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

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

The companies with the most job posts naming OpenX are Target (26), Samba (25) and Captify® (part of Verve) (20). Samba is the newest of the five companies in the table, with its first job post naming it in August 2024.

| Company | Job posts | Recent job post |
|---|---:|---|
| [Target](https://sumble.com/orgs/target) | 26 | "Experience in ad networks (GDN, OpenX, ValueClick, Tribal Fusion) and rich media vendors (Sizmek, DoubleClick Studio, Medialets, Innovid)." (Media Analyst, Sep 22, 2026) |
| [Samba](https://sumble.com/orgs/samba-tv) | 25 | "Solid working knowledge of DMPs such as LiveRamp, Lotame, and Adform, and SSPs such as OpenX, Magnite, and FreeWheel." (Programmatic Account Manager, Nov 7, 2026) |
| [Captify® (part of Verve)](https://sumble.com/orgs/captify) | 20 | "Use market leading DSPs, including Xandr and The Trade Desk Use market leading SSP, including Xandr, Pubmatic and OpenX" (digital account executive, Apr 23, 2025) |
| [Adobe](https://sumble.com/orgs/adobe) | 18 | "A strong understanding of the display advertising ecosystem and hands-on experience with ad networks such as GDN, Tribal Fusion, OpenX, and ValueClick." (mgr, online marketing 3, Feb 7, 2026) |
| [MetLife](https://sumble.com/orgs/metlife) | 15 | "Ad server experience (Google Ad Manager, OpenX)" (Senior Marketing Performance Analyst, Jun 4, 2025) |

## Is hiring for OpenX growing?

Job posts mentioning OpenX went from 0.04 to 0.03 in every 10,000 job posts, comparing March to May with June to August 2026. One company accounts for most of that change.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 11 | 1,413,673 | 0.08 |
| Nov 2025 | 7 | 1,822,119 | 0.04 |
| Dec 2025 | 7 | 1,236,103 | 0.06 |
| Jan 2026 | 10 | 1,828,002 | 0.05 |
| Feb 2026 | 12 | 1,856,647 | 0.06 |
| Mar 2026 | 5 | 1,850,711 | 0.03 |
| Apr 2026 | 11 | 1,728,886 | 0.06 |
| May 2026 | 6 | 1,821,509 | 0.03 |
| Jun 2026 | 5 | 1,909,496 | 0.03 |
| Jul 2026 | 6 | 1,815,180 | 0.03 |
| Aug 2026 | 8 | 1,835,698 | 0.04 |

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

From June to August 2026, 7 companies posted their first job naming OpenX; 8 did from March to May. From October 2025 to August 2026, 29 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 | 8 |
| June to August 2026 | 7 |
| October 2025 to August 2026 | 29 |

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 OpenX?

87% of the companies here are known from employees' profiles alone, and 13% name OpenX in their own job posts. 22 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name OpenX | 141 | 13% |
| Employees' profiles list OpenX | 952 | 87% |

## What size are the companies that use OpenX?

Companies with fewer than 50 employees are 1.2 times as common among OpenX users as on the typical tech page. 196 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 27% | 22% |
| 50 to 999 | 37% | 38% |
| 1,000 to 5,000 | 18% | 17% |
| Over 5,000 | 18% | 23% |

## Where are OpenX companies based?

Beyond the United States (45%), OpenX is unusually common in the Netherlands, at 3.5% of its companies. The United Kingdom is second, at 6.9%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 480 | 45% | 43% |
| United Kingdom | 73 | 6.9% | 6.4% |
| India | 53 | 5% | 6.9% |
| Canada | 39 | 3.7% | 3.6% |
| Germany | 37 | 3.5% | 4.4% |
| The Netherlands | 37 | 3.5% | 2% |

## Which roles mention OpenX most?

No single role dominates for OpenX; Account Manager leads with 17% of the job posts. Account Manager posts naming it numbered 4 from March to May 2026 and 1 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Account Manager | 17% | 15 | 4 | 1 |
| Product Manager | 11% | 10 | 0 | 1 |
| Performance Marketing | 9.1% | 8 | 1 | 4 |
| Marketing | 8% | 7 | 0 | 0 |
| Sales | 8% | 7 | 1 | 4 |
| Consultant | 6.8% | 6 | 0 | 0 |

## Which companies started naming OpenX in job posts recently?

10 companies with 50 or more employees picked up OpenX in their job posts from April to August 2026. Lumenalta has the most job posts of the new commercial companies, 4 from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Lumenalta](https://sumble.com/orgs/clevertech) | 4 |
| Commercial | [RebelMouse](https://sumble.com/orgs/rebelmouse) | 2 |
| Commercial | [pureIntegration](https://sumble.com/orgs/pureintegration) | 2 |
| Commercial | [Havas Colombia](https://sumble.com/orgs/havas-group-colombia) | 1 |
| Commercial | [Overwolf](https://sumble.com/orgs/overwolf) | 1 |
| Mid-market | [Xperi Inc.](https://sumble.com/orgs/xperi) | 2 |
| Mid-market | [Unity](https://sumble.com/orgs/unity-technologies) | 1 |
| Mid-market | [6sense](https://sumble.com/orgs/6sense) | 1 |

Companies that named OpenX 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 OpenX companies use?

Pubmatic, Magnite and Xandr show up far more often at OpenX companies than at companies of the same size. Integral Ad Science is 173 times as common as usual, at 9.7%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Pubmatic | 51 | 49.5% | 0.07% | 709 times |
| Magnite | 51 | 49.5% | 0.11% | 440 times |
| Xandr | 57 | 55% | 0.25% | 222 times |
| Integral Ad Science | 10 | 9.7% | 0.06% | 173 times |
| MediaMath | 15 | 15% | 0.1% | 149 times |
| Freewheel | 18 | 17% | 0.12% | 144 times |
| Sizmek | 25 | 24% | 0.18% | 134 times |
| DoubleVerify | 19 | 18% | 0.18% | 105 times |

Shares are out of the 103 companies whose job posts name OpenX, not counting firms whose job posts name almost every technology.

## 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.