# Companies using ClickHouse

12,525 companies in our data use ClickHouse, and 4,520 of them name it in job posts they wrote. Hiring for it is growing, with 8,143 job posts naming it from October 2025 to August 2026. It comes up most in Software Engineer job posts.

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

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

TikTok has posted more jobs naming ClickHouse than any other company: 874. Three of these five companies are in Scientific and Technical Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [TikTok](https://sumble.com/orgs/tiktok) | 874 | 52 | "Responsible for the reliability of all TikTok's major data warehouse products, services, and query engines, such as ClickHouse, Spark, Presto, Doris, etc." (Site Reliability Engineer, Compute Platform, Oct 23, 2026) |
| [ClickHouse](https://sumble.com/orgs/clickhouse) | 398 | 54 | "You will also own the areas of incident management and response, post-mortem analysis including running blameless postmortems, and continuous improvement of our ClickHouse services." (Senior Site Reliability Engineer - (US-Remote), Nov 7, 2026) |
| [ByteDance](https://sumble.com/orgs/bytedance) | 345 | 34 | "Experience with big data technologies such as Spark, Flink, Hive, Kafka, ClickHouse, Doris, or similar systems is a plus." (Multi-Cloud CDN Data Platform Engineer Graduate (CDN Platform) - 2027 Start, Oct 23, 2026) |
| [Luxoft](https://sumble.com/orgs/luxoft) | 288 | 10 | "Collaborate and actively contribute with developers on migration from MongoDB to Clickhouse and PostGres." (Data Engineer (Clickhouse), Dec 4, 2025) |
| [Cloudflare](https://sumble.com/orgs/cloudflare) | 266 | 34 | "Our technology stack includes Rust, Linux networking, Clickhouse, SaltStack, Prometheus, AI harnesses, and our own Cloudflare Workers platform." (Senior Software Engineer - ZTC, Nov 7, 2026) |

## Is hiring for ClickHouse growing?

Hiring for ClickHouse is growing. 4.5 in every 10,000 job posts named it from June to August 2026, against 4.1 from March to May. August 2026 was its highest month since October 2025, at 4.7.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 521 | 1,413,673 | 3.7 |
| Nov 2025 | 804 | 1,822,119 | 4.4 |
| Dec 2025 | 494 | 1,236,103 | 4.0 |
| Jan 2026 | 785 | 1,828,002 | 4.3 |
| Feb 2026 | 833 | 1,856,647 | 4.5 |
| Mar 2026 | 750 | 1,850,711 | 4.1 |
| Apr 2026 | 733 | 1,728,886 | 4.2 |
| May 2026 | 715 | 1,821,509 | 3.9 |
| Jun 2026 | 830 | 1,909,496 | 4.3 |
| Jul 2026 | 812 | 1,815,180 | 4.5 |
| Aug 2026 | 866 | 1,835,698 | 4.7 |

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

In the three months to August 2026, 480 companies posted about ClickHouse for the first time. From March to May, 404 did. Of the 4,520 companies whose job posts name it, 11% first named it from June to August.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 404 |
| June to August 2026 | 480 |
| October 2025 to August 2026 | 1,463 |

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 ClickHouse?

Of the 12,525 companies here, 8,005 are known from what employees list on their profiles. 1,584 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name ClickHouse | 4,520 | 36% |
| Employees' profiles list ClickHouse | 8,005 | 64% |

## What size are the companies that use ClickHouse?

Smaller companies stand out among ClickHouse users: companies with fewer than 50 employees are 35% of them, against 22% on the typical tech page. 972 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 35% | 22% |
| 50 to 999 | 46% | 38% |
| 1,000 to 5,000 | 11% | 17% |
| Over 5,000 | 7.8% | 23% |

## Where are ClickHouse companies based?

The United States has the most ClickHouse companies (33%), but Russia stands out: 3.7% of them, against 0.19% on the typical tech page. India is second, at 8.4%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 3,796 | 33% | 43% |
| India | 982 | 8.4% | 6.9% |
| United Kingdom | 644 | 5.5% | 6.4% |
| Germany | 489 | 4.2% | 4.4% |
| France | 438 | 3.8% | 4.6% |
| Russia | 436 | 3.7% | 0.19% |

## Which teams work with ClickHouse?

The teams named most often in ClickHouse job posts are data, data engineering and engineering. Data platform teams come fourth, at 96 companies.

| Team | Companies |
|---|---:|
| Data | 129 |
| Data engineering | 102 |
| Engineering | 97 |
| Data platform | 96 |
| Platform | 75 |
| Infrastructure | 44 |

## Which roles mention ClickHouse most?

Software Engineer and Data Engineer roles account for 43% of the job posts that name ClickHouse. Software Engineer posts naming it numbered 570 from March to May 2026 and 606 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Software Engineer | 28% | 2,310 | 570 | 606 |
| Data Engineer | 14% | 1,178 | 338 | 326 |
| Platform Engineer | 5.7% | 466 | 125 | 159 |
| Site Reliability Engineer | 4.5% | 370 | 89 | 122 |
| AI Engineer | 3% | 242 | 74 | 83 |
| DevOps Engineer | 2.9% | 233 | 68 | 77 |

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

From April to August 2026, 398 companies with 50 or more employees posted their first job naming ClickHouse: 278 commercial, 75 mid-market and 45 enterprise. Another 27 were AI-native companies, which we list separately.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [Lightfield](https://sumble.com/orgs/lightfld) | 3 |
| AI native | [WitnessAI](https://sumble.com/orgs/witnessai) | 2 |
| AI native | [StackAI](https://sumble.com/orgs/stackai) | 2 |
| AI native | [Saga](https://sumble.com/orgs/sagalegal-io) | 2 |
| AI native | [Arteria AI](https://sumble.com/orgs/arteria-ai) | 2 |
| Commercial | [DENIC eG](https://sumble.com/orgs/denic-eg) | 12 |
| Commercial | [Amelco Limited](https://sumble.com/orgs/amelco) | 9 |
| Commercial | [Tazapay](https://sumble.com/orgs/tazapay) | 8 |
| Commercial | [System Soft Technologies](https://sumble.com/orgs/system-soft-technologies) | 6 |
| Commercial | [Guardio](https://sumble.com/orgs/guardiosec) | 6 |
| Mid-market | [IONOS](https://sumble.com/orgs/ionos,-inc) | 7 |
| Mid-market | [Wissen Technology](https://sumble.com/orgs/wissen-technology-private-limited) | 6 |
| Mid-market | [ABOUT YOU](https://sumble.com/orgs/about-you-se-&-co-kg) | 4 |
| Mid-market | [Mission Pet Health](https://sumble.com/orgs/mission-veterinary-partners) | 4 |
| Mid-market | [Hyve Solutions](https://sumble.com/orgs/hyve-solutions) | 4 |
| Enterprise | [SpaceX](https://sumble.com/orgs/spacex) | 9 |
| Enterprise | [Rohde & Schwarz](https://sumble.com/orgs/rohde-&-schwarz-gmbh-&-co-kg) | 7 |
| Enterprise | [National University of Singapore](https://sumble.com/orgs/national-university-of-singapore) | 6 |
| Enterprise | [Minsait](https://sumble.com/orgs/minsait) | 4 |
| Enterprise | [Sii Poland](https://sumble.com/orgs/sii-polska) | 4 |

Companies that named ClickHouse 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 ClickHouse companies use?

The tool most tied to ClickHouse is Apache Druid. 8.2% of ClickHouse companies use it, 37 times the usual rate for their size. Next is Apache Hudi: 5.5% of these companies use it, against 0.23% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Apache Druid | 308 | 8.2% | 0.22% | 37 times |
| Apache Hudi | 205 | 5.5% | 0.23% | 23 times |
| Trino | 368 | 9.8% | 0.42% | 23 times |
| Apache Superset | 403 | 11% | 0.54% | 20 times |
| Flink | 999 | 27% | 1.4% | 19 times |
| Apache Iceberg | 593 | 16% | 0.86% | 18 times |
| Ray | 250 | 6.7% | 0.37% | 18 times |
| vLLM | 288 | 7.7% | 0.44% | 18 times |

Shares are out of the 3,754 companies whose job posts name ClickHouse, not counting firms whose job posts name almost every technology.

## Which project themes come up in ClickHouse job posts?

2,099 job posts naming ClickHouse describe broad digital transformation, and 1,208 describe Data Infrastructure Migration work. After that comes Cloud Cost Optimization, with 943.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 2,099 |
| Data Infrastructure Migration | 1,208 |
| Cloud Cost Optimization | 943 |
| Microservices Migration | 566 |

- "Integrate and optimize data storage solutions (Postgres, S3, DynamoDB, Kafka, ClickHouse)" (Workato, Senior Software Engineer (GOlang, Engine), 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.