# Companies using Azure Cosmos DB

We found 31,359 companies that use Azure Cosmos DB. 10,548 of them name it in their own job posts, and the rest through employees' public profiles. Hiring for it has slowed, though 15,915 job posts still named it from October 2025 to August 2026. Software Engineer roles mention it most.

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

## Which companies name Azure Cosmos DB in the most job posts?

The companies with the most job posts naming Azure Cosmos DB are Microsoft (3,813), Walmart (1,408) and Tata Consultancy Services (913). Tata Consultancy Services is the newest of the five companies in the table, with its first job post naming it in July 2023.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Microsoft](https://sumble.com/orgs/microsoft) | 3,813 | 3,202 | "Architect secure, scalable Azure solutions using Azure App Service/Web Apps, Azure Functions, Azure Cosmos DB, and supporting cloud services." (Platform Architect -Integrated Learning, Nov 7, 2026) |
| [Walmart](https://sumble.com/orgs/walmart) | 1,408 | 592 | "Build and own core services across our Go, C#, Node.js, and React codebases, backed by SQL and Azure Cosmos DB." ((USA) Staff, Software Engineer, Nov 1, 2026) |
| [Tata Consultancy Services](https://sumble.com/orgs/tata-consultancy-services-tcs) | 913 | 1,120 | "Support databases such as Cosmos DB, MySQL, MongoDB, BigQuery, and Cassandra" (Application Support, Nov 4, 2026) |
| [EPAM Systems](https://sumble.com/orgs/epam-systems) | 862 | 377 | "Hands-on expertise with Azure services such as App Services, Key Vault, Cosmos DB, networking, and Identity" (DevOps Technical Lead / Architect - Azure & Terraform, Nov 7, 2026) |
| [Deloitte](https://sumble.com/orgs/deloitte) | 666 | 556 | "Design, develop, and enhance interactive dashboards, reports, and analytics, specifically COSMOS using Palantir Foundry." (Project Dashboard Developer (Palantir / Foundry), Oct 23, 2026) |

## Is hiring for Azure Cosmos DB growing?

Azure Cosmos DB turned up in a shrinking share of job posts: 7.1 in every 10,000 job posts from June to August 2026, compared with 8.2 from March to May. August 2026 was its lowest month since October 2025, at 7.0.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 1,261 | 1,413,673 | 8.9 |
| Nov 2025 | 1,877 | 1,822,119 | 10 |
| Dec 2025 | 1,095 | 1,236,103 | 8.9 |
| Jan 2026 | 1,614 | 1,828,002 | 8.8 |
| Feb 2026 | 1,685 | 1,856,647 | 9.1 |
| Mar 2026 | 1,587 | 1,850,711 | 8.6 |
| Apr 2026 | 1,518 | 1,728,886 | 8.8 |
| May 2026 | 1,329 | 1,821,509 | 7.3 |
| Jun 2026 | 1,370 | 1,909,496 | 7.2 |
| Jul 2026 | 1,293 | 1,815,180 | 7.1 |
| Aug 2026 | 1,286 | 1,835,698 | 7.0 |

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

Azure Cosmos DB showed up in job posts at 330 companies for the first time from June to August 2026, and 381 in the three months before. Over the 11 months from October 2025, 1,437 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 381 |
| June to August 2026 | 330 |
| October 2025 to August 2026 | 1,437 |

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 Azure Cosmos DB?

Of the 31,359 companies here, 20,811 are known from what employees list on their profiles. 10,548 name it in their own job posts.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Azure Cosmos DB | 10,548 | 34% |
| Employees' profiles list Azure Cosmos DB | 20,811 | 66% |

## What size are the companies that use Azure Cosmos DB?

Smaller companies stand out among Azure Cosmos DB users: companies with fewer than 50 employees are 29% of them, against 22% on the typical tech page. 2,981 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 29% | 22% |
| 50 to 999 | 45% | 38% |
| 1,000 to 5,000 | 16% | 17% |
| Over 5,000 | 9.5% | 23% |

## Where are Azure Cosmos DB companies based?

Azure Cosmos DB companies are spread across 153 countries and territories. The United States leads with 38%, then the United Kingdom with 8.3%. India is third, at 7.6%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 11,346 | 38% | 43% |
| United Kingdom | 2,455 | 8.3% | 6.4% |
| India | 2,268 | 7.6% | 6.9% |
| Canada | 1,206 | 4.1% | 3.6% |
| Germany | 991 | 3.3% | 4.4% |
| Brazil | 985 | 3.3% | 2.8% |

## Which teams work with Azure Cosmos DB?

Job posts most often place Azure Cosmos DB with IT, engineering and technology teams. Next are data engineering and development teams, at 93 and 84 companies.

| Team | Companies |
|---|---:|
| IT | 140 |
| Engineering | 138 |
| Technology | 104 |
| Data engineering | 93 |
| Development | 84 |
| Data | 82 |

## Which roles mention Azure Cosmos DB most?

Software Engineer and Data Engineer roles account for 47% of the job posts that name Azure Cosmos DB. The top four roles cover 55% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 39% | 6,225 | 1,693 | 1,414 |
| Data Engineer | 7.6% | 1,217 | 373 | 310 |
| AI Engineer | 5.2% | 820 | 196 | 265 |
| Solutions Architect | 3.4% | 549 | 126 | 117 |
| Cloud Engineer | 2.9% | 469 | 152 | 96 |
| DevOps Engineer | 2.5% | 392 | 99 | 79 |

## Which companies started naming Azure Cosmos DB in job posts recently?

From April to August 2026, 403 companies with 50 or more employees posted their first job naming Azure Cosmos DB: 259 commercial, 91 mid-market and 53 enterprise. GEI Consultants, Inc. leads the new mid-market companies, with 7 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Gruve](https://sumble.com/orgs/gruveai) | 7 |
| Commercial | [BoomerangFX](https://sumble.com/orgs/boomerangfx) | 7 |
| Commercial | [EmbedIT](https://sumble.com/orgs/embedit) | 6 |
| Commercial | [NuAxis Innovations](https://sumble.com/orgs/nuaxis-innovations) | 6 |
| Commercial | [Polestar Analytics](https://sumble.com/orgs/polestarsolutions&services) | 5 |
| Mid-market | [GEI Consultants, Inc.](https://sumble.com/orgs/gei-consultants) | 7 |
| Mid-market | [Sun International](https://sumble.com/orgs/sun-international) | 6 |
| Mid-market | [STACK Infrastructure](https://sumble.com/orgs/stack-infrastructure) | 6 |
| Mid-market | [Edwards Vacuum](https://sumble.com/orgs/edwards-vacuum) | 4 |
| Mid-market | [Fronius Österreich](https://sumble.com/orgs/fronius) | 4 |
| Enterprise | [KeyBank](https://sumble.com/orgs/keybank) | 5 |
| Enterprise | [Viasat](https://sumble.com/orgs/viasat) | 5 |
| Enterprise | [Fluor Corporation](https://sumble.com/orgs/fluor) | 4 |
| Enterprise | [City of New York](https://sumble.com/orgs/city-of-new-york) | 3 |
| Enterprise | [SATS Ltd.](https://sumble.com/orgs/sats-ltd) | 3 |

Companies that named Azure Cosmos DB 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 Azure Cosmos DB companies use?

27% of Azure Cosmos DB companies also use Azure Application Insights, against 1.7% of similar companies. Azure App Services is 15 times as common as usual, at 37%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Azure Application Insights | 2,079 | 27% | 1.7% | 16 times |
| Azure App Services | 2,790 | 37% | 2.4% | 15 times |
| Azure Event Hub | 1,813 | 24% | 1.6% | 15 times |
| Azure Storage | 1,965 | 26% | 1.9% | 13 times |
| Azure Functions | 3,507 | 46% | 3.5% | 13 times |
| Azure AKS | 2,837 | 37% | 3.2% | 12 times |
| Azure Monitor | 2,217 | 29% | 2.6% | 11 times |
| Azure Resource Manager | 623 | 8.2% | 0.72% | 11 times |

Shares are out of the 7,620 companies whose job posts name Azure Cosmos DB, not counting firms whose job posts name almost every technology.

## Which project themes come up in Azure Cosmos DB job posts?

After broad digital transformation work, teams hiring for Azure Cosmos DB most often mention Data Infrastructure Migration, in 4,167 job posts. After that comes Microservices Migration, with 3,192.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 11,627 |
| Data Infrastructure Migration | 4,167 |
| Microservices Migration | 3,192 |
| Cloud Cost Optimization | 2,358 |

- "Monitor, diagnose, and optimize costs across Cosmos DB (RU/s utilization), ADX (compute and storage tiers), Azure SQL, Event Hubs, and Azure Functions" (Trane Technologies, data developer, Nov 7, 2026)

## 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.