# Companies using Microsoft Windows 2003

1,556 companies use Microsoft Windows 2003, based on their job posts and their employees' public profiles. From October 2025 to August 2026, 192 job posts named it. IT Support roles mention it most.

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

## Which companies name Microsoft Windows 2003 in the most job posts?

Among the companies with the most job posts naming Microsoft Windows 2003 are HCLTech (132), TENICA Global Solutions (82) and Tata Consultancy Services (71). All five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [HCLTech](https://sumble.com/orgs/hcltech) | 132 | 13 | "Servers: Windows 2000, Windows 2003, Windows 2008…" (Deskside Support Technician, Oct 27, 2026) |
| [TENICA Global Solutions](https://sumble.com/orgs/tenica) | 82 | 0 | "Windows 2003/2008 Workstation, Windows Server 2003/2008, Windows XP Professional and Windows 7 Professional o Experience…" (IT System Administrator with Security Clearance, Nov 4, 2026) |
| [Tata Consultancy Services](https://sumble.com/orgs/tata-consultancy-services-tcs) | 71 | 17 | "Strong Technical knowledge of Windows 2003/2008, Windows XP, Windows 7, SQL Server, Altiris, MS Office 2003/2007/2010, Active Directory" (citrix administrator, Sep 17, 2026) |
| [USI Insurance Services](https://sumble.com/orgs/usi-insurance-services) | 38 | 0 | "Elevated level of computer literacy including working knowledge of Windows 2003, Excel, Word, and call tracking systems." (CSR - Customer Service Representative/ Benefit Specialist, Aug 28, 2024) |
| [NTT DATA](https://sumble.com/orgs/ntt-data) | 36 | 1 | ""Job Description: Skills - Strong working knowledge and experience on Microsoft Windows 2003, 2008 2012 Strong Knowledge in VMWare ESX, VSphere, Vcenter Working knowledge on Patch Mgmt tool like SCCM…" (Wintel Systems Integration Senior Specialist, Aug 10, 2026) |

## Is hiring for Microsoft Windows 2003 growing?

From March to May 2026, 0.09 in every 10,000 job posts named Microsoft Windows 2003; from June to August, 0.12 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 | 8 | 1,413,673 | 0.06 |
| Nov 2025 | 11 | 1,822,119 | 0.06 |
| Dec 2025 | 9 | 1,236,103 | 0.07 |
| Jan 2026 | 19 | 1,828,002 | 0.10 |
| Feb 2026 | 27 | 1,856,647 | 0.15 |
| Mar 2026 | 15 | 1,850,711 | 0.08 |
| Apr 2026 | 13 | 1,728,886 | 0.08 |
| May 2026 | 23 | 1,821,509 | 0.13 |
| Jun 2026 | 22 | 1,909,496 | 0.12 |
| Jul 2026 | 23 | 1,815,180 | 0.13 |
| Aug 2026 | 22 | 1,835,698 | 0.12 |

## How many companies named Microsoft Windows 2003 in a job post for the first time in recent months?

In the three months to August 2026, 5 companies posted about Microsoft Windows 2003 for the first time. From March to May, 5 did. Of the 454 companies whose job posts name it, 1.1% first named it from June to August.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 5 |
| June to August 2026 | 5 |
| October 2025 to August 2026 | 19 |

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 Microsoft Windows 2003?

1,102 of the 1,556 companies show up because employees list Microsoft Windows 2003 on their profiles; 454 name it in their own job posts. 40 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Microsoft Windows 2003 | 454 | 29% |
| Employees' profiles list Microsoft Windows 2003 | 1,102 | 71% |

## What size are the companies that use Microsoft Windows 2003?

38% of Microsoft Windows 2003 users are companies with 50 to 999 employees, the largest size group. 417 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 15% | 22% |
| 50 to 999 | 38% | 38% |
| 1,000 to 5,000 | 20% | 17% |
| Over 5,000 | 27% | 23% |

## Where are Microsoft Windows 2003 companies based?

Beyond the United States (44%), Microsoft Windows 2003 is unusually common in the Netherlands, at 4.8% of its companies. The United Kingdom is second, at 6.8%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 644 | 44% | 43% |
| United Kingdom | 100 | 6.8% | 6.4% |
| India | 81 | 5.5% | 6.9% |
| France | 80 | 5.4% | 4.6% |
| The Netherlands | 71 | 4.8% | 2% |
| Canada | 64 | 4.4% | 3.6% |

## Which teams work with Microsoft Windows 2003?

At 14 companies, the team named in Microsoft Windows 2003 job posts is IT, at least twice the next.

| Team | Companies |
|---|---:|
| IT | 14 |
| Information systems | 3 |
| IT operations | 3 |
| Middleware | 3 |
| Centre de compétences | 2 |
| Datacenter optimization practice | 2 |

## Which roles mention Microsoft Windows 2003 most?

IT Support roles make up 44% of the job posts that name Microsoft Windows 2003. The top four roles cover 69% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| IT Support | 44% | 85 | 25 | 37 |
| Administrator | 14% | 26 | 5 | 6 |
| Systems Engineer | 5.7% | 11 | 3 | 0 |
| Identity & Access Management (IAM) | 5.2% | 10 | 0 | 2 |
| Customer Engineer | 4.7% | 9 | 1 | 0 |
| Skilled Trades | 4.2% | 8 | 1 | 5 |

## Which companies started naming Microsoft Windows 2003 in job posts recently?

Between April and August 2026, 8 companies with 50 or more employees first named Microsoft Windows 2003 in a job post, 4 of them with more than 5,000 employees.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Enterprise | [TotalEnergies](https://sumble.com/orgs/totalenergies) | 1 |
| Enterprise | [SUN PHARMA](https://sumble.com/orgs/sun-pharmaceutical-industries) | 1 |
| Enterprise | [NTT DATA, Inc.](https://sumble.com/orgs/ntt-global-data-centers-cbj1) | 1 |
| Enterprise | [JCDecaux](https://sumble.com/orgs/jcdecaux) | 1 |

Companies that named Microsoft Windows 2003 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 Microsoft Windows 2003 companies use?

11% of Microsoft Windows 2003 companies also use Microsoft Windows 2000, against 0.24% of similar companies. Microsoft Windows XP comes second, 27 times as common as usual, at 26%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Microsoft Windows 2000 | 30 | 11% | 0.24% | 46 times |
| Microsoft Windows XP | 69 | 26% | 0.96% | 27 times |
| IBM Tivoli | 20 | 7.4% | 0.48% | 16 times |
| ConnectWise | 15 | 5.6% | 0.4% | 14 times |
| Microsoft Windows 7 | 90 | 33% | 2.5% | 13 times |
| NetBackup | 21 | 7.8% | 0.66% | 12 times |
| SonicWall | 19 | 7% | 0.6% | 12 times |
| HCL BigFix | 14 | 5.2% | 0.45% | 12 times |

Shares are out of the 270 companies whose job posts name Microsoft Windows 2003, 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.