# Companies using ASP.NET Web API

2,889 companies have posted jobs that mention ASP.NET Web API. Hiring for it has slowed, though 1,488 job posts still named it from October 2025 to August 2026. Software Engineer is the role that names it most often.

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

## Which companies name ASP.NET Web API in the most job posts?

The companies with the most job posts naming ASP.NET Web API are EPAM Systems (640), Social Insurance Institution (446) and Sansan株式会社 (308). Three of these five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [EPAM Systems](https://sumble.com/orgs/epam-systems) | 640 | 975 | "Provide high-level technical oversight for teams delivering on the Java Ecosystem (Spring Boot, Spring Cloud, Hibernate) or .NET Ecosystem (.NET Core, .NET 8+, C#, ASP.NET Web API)" (IT Delivery Manager - Java/.NET, Sep 7, 2026) |
| [Social Insurance Institution](https://sumble.com/orgs/zakład-ubezpieczen-społecznych) | 446 | 0 | "doświadczenie w tworzeniu serwisów ASP.NET Web Api" (IT process support position (developer #), Dec 26, 2025) |
| [Sansan株式会社](https://sumble.com/orgs/sansan株式会社) | 308 | 0 | "フレームワーク：.NET Framework 4.6.1（ASP.NET MVC、ASP.NET Web Forms、ASP.NET Web API 、WPF）" (Web application development engineer / Sansan / Weekends off / Over 120 days of annual leave / SE (Web/Open Systems) / Osaka Prefecture / Full-time employee, Oct 4, 2026) |
| [Deloitte](https://sumble.com/orgs/deloitte) | 221 | 1,419 | "Develop back-end services and APIs using ASP.NET Web API or similar frameworks." (Composable Commerce (LCNC- .Net)-Managed Services Engineer II-DFO&I-Customer, Jun 13, 2026) |
| [Nagarro](https://sumble.com/orgs/nagarro) | 190 | 499 | "Strong working experience with architecture and development in C#,.net core,.net framework, entity framework, ASP.NET MVC, ASP.NET Web API and unit testing." (Associate Principal Engineer, Dotnet AI Architect, Aug 19, 2026) |

## Is hiring for ASP.NET Web API growing?

Hiring for ASP.NET Web API has slowed. 0.68 in every 10,000 job posts named it from June to August 2026, against 0.89 from March to May. June 2026 was its lowest month since October 2025, at 0.64.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 98 | 1,413,673 | 0.69 |
| Nov 2025 | 131 | 1,822,119 | 0.72 |
| Dec 2025 | 112 | 1,236,103 | 0.91 |
| Jan 2026 | 141 | 1,828,002 | 0.77 |
| Feb 2026 | 147 | 1,856,647 | 0.79 |
| Mar 2026 | 188 | 1,850,711 | 1.0 |
| Apr 2026 | 146 | 1,728,886 | 0.84 |
| May 2026 | 145 | 1,821,509 | 0.80 |
| Jun 2026 | 122 | 1,909,496 | 0.64 |
| Jul 2026 | 137 | 1,815,180 | 0.75 |
| Aug 2026 | 121 | 1,835,698 | 0.66 |

## How many companies named ASP.NET Web API in a job post for the first time in recent months?

From June to August 2026, 96 companies posted their first job naming ASP.NET Web API; 90 did from March to May. Over the 11 months from October 2025, 304 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 90 |
| June to August 2026 | 96 |
| October 2025 to August 2026 | 304 |

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 ASP.NET Web API?

2,889 companies name ASP.NET Web API in their own job posts. The other 61,538 show up because employees list it on their profiles. 1,533 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name ASP.NET Web API | 2,889 | 4.5% |
| Employees' profiles list ASP.NET Web API | 61,538 | 96% |

## What size are the companies that use ASP.NET Web API?

The largest group of ASP.NET Web API users is companies with 50 to 999 employees (39%), more than on the typical tech page. The second-largest group is companies with fewer than 50 employees, at 34%. These counts cover the 2,889 companies whose job posts name it.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 34% | 26% |
| 50 to 999 | 39% | 37% |
| 1,000 to 5,000 | 13% | 15% |
| Over 5,000 | 14% | 22% |

## Where are ASP.NET Web API companies based?

Beyond the United States (43%), ASP.NET Web API is unusually common in India, at 13% of its companies. France is less common than usual, at 2.6% against 5% on the typical tech page. These shares cover the 2,889 companies whose job posts name it.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,156 | 43% | 48% |
| India | 341 | 13% | 7.5% |
| United Kingdom | 148 | 5.6% | 6.3% |
| Canada | 98 | 3.7% | 3.8% |
| Brazil | 70 | 2.6% | 2.3% |
| France | 69 | 2.6% | 5% |

## Which teams work with ASP.NET Web API?

Job posts most often place ASP.NET Web API with development, IT and technology teams. Software development teams come fourth, at 22 companies.

| Team | Companies |
|---|---:|
| Development | 42 |
| IT | 35 |
| Technology | 23 |
| Software development | 22 |
| Engineering | 21 |
| Product development | 16 |

## Which roles mention ASP.NET Web API most?

Most job posts naming ASP.NET Web API are for one kind of role. Software Engineer accounts for 73%. Software Architect is second, at 2%.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 73% | 1,090 | 345 | 266 |
| Software Architect | 2% | 30 | 7 | 5 |
| Frontend Engineer | 1.6% | 24 | 5 | 8 |
| AI Engineer | 1.3% | 20 | 4 | 8 |
| IT Support | 1.3% | 20 | 4 | 4 |
| Business Systems | 1.3% | 19 | 5 | 4 |

## Which companies started naming ASP.NET Web API in job posts recently?

111 companies with 50 or more employees picked up ASP.NET Web API in their job posts from April to August 2026. Rakuten leads the new enterprise companies, with 5 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [SKIDATA](https://sumble.com/orgs/skidata) | 3 |
| Commercial | [HCLTech Vietnam](https://sumble.com/orgs/cong-ty-tnhh-hcl-technologies-viet-nam) | 3 |
| Commercial | [onPhase](https://sumble.com/orgs/docuphase) | 3 |
| Commercial | [VenPep Group](https://sumble.com/orgs/venpep-solutions) | 3 |
| Commercial | [SISA](https://sumble.com/orgs/sisa) | 2 |
| Mid-market | [knowmad mood](https://sumble.com/orgs/knowmad-mood) | 5 |
| Mid-market | [Edwards Vacuum](https://sumble.com/orgs/edwards-vacuum) | 4 |
| Mid-market | [PwC Singapore](https://sumble.com/orgs/pwc-singapore) | 3 |
| Mid-market | [Applied Systems](https://sumble.com/orgs/applied-systems,-inc.-1) | 3 |
| Mid-market | [Mecalux](https://sumble.com/orgs/mecalux) | 3 |
| Enterprise | [Rakuten](https://sumble.com/orgs/global-rakuten-corporate) | 5 |
| Enterprise | [Epsilon](https://sumble.com/orgs/epsilon-3) | 3 |
| Enterprise | [WNS](https://sumble.com/orgs/wns-global-services) | 2 |
| Enterprise | [act digital](https://sumble.com/orgs/actto-consultoria) | 2 |
| Enterprise | [Larsen & Toubro](https://sumble.com/orgs/larsen-and-toubro-l&t) | 1 |

Companies that named ASP.NET Web API 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 ASP.NET Web API companies use?

Compared with companies of the same size, ASP.NET Web API companies stand out for using ASP.NET Web Forms and NHibernate. Among the tools listed here, Microsoft Entity Framework is the most widely used, at 60% of ASP.NET Web API companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| ASP.NET Web Forms | 163 | 8.7% | 0.28% | 31 times |
| NHibernate | 123 | 6.6% | 0.26% | 26 times |
| Dapper | 232 | 12% | 0.52% | 24 times |
| EF Core | 153 | 8.2% | 0.36% | 23 times |
| Microsoft ASP.NET MVC | 897 | 48% | 2.2% | 22 times |
| WCF | 487 | 26% | 1.5% | 17 times |
| Microsoft Entity Framework | 1,121 | 60% | 3.7% | 16 times |
| MAUI | 148 | 7.9% | 0.58% | 14 times |

Shares are out of the 1,874 companies whose job posts name ASP.NET Web API, not counting firms whose job posts name almost every technology.

## Which project themes come up in ASP.NET Web API job posts?

844 job posts naming ASP.NET Web API describe broad digital transformation, and 267 describe Microservices Migration work. Data Infrastructure Migration is next, in 143 job posts.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 844 |
| Microservices Migration | 267 |
| Data Infrastructure Migration | 143 |
| Frontend Migration | 130 |

## 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.