# Companies using Fluentd

We found 3,989 companies that use Fluentd. 1,715 of them name it in their own job posts, and the rest through employees' public profiles. From October 2025 to August 2026, 1,187 job posts named it. It comes up most in DevOps Engineer job posts.

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

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

Sansan株式会社, RAKUS Co, Ltd. and Sakura Internet Inc mention Fluentd in the most job posts.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Sansan株式会社](https://sumble.com/orgs/sansan株式会社) | 363 | 0 | "運用・監視：Zabbix、Grafana、New Relic、Amazon Elasticsearch Service、Fluentd、Chef" (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) |
| [RAKUS Co, Ltd.](https://sumble.com/orgs/rakus) | 345 | 0 | "…QL／AWS（オンプレミスハイブリッド）／Firewall・ロードバランサ・Cisco／Ansible・Terraform・GitHub／Elasticsearch・Kibana・fluentd・nginx・qmail・postfix／VMware・VSAN／Kubernetes／生成AI（ChatGPT・Gemini・Devin・GitHub Copilot・Claude Code）" (Management position / Infrastructure Engineer / Manager / Section Chief responsible for infrastructure strategy and organizational development for our company's cloud services / Server and Network Engineer / Tokyo / Full-time employee, Nov 1, 2026) |
| [Sakura Internet Inc](https://sumble.com/orgs/sakura-internet) | 242 | 2 | "■Kafka、MySQL、Fluentd、RabbitMQ、Elasticsearch、Prometheus などのミドルウェア、または同様の機能を持つ他のミドルウェアを活用したシステムの設計・構築・運用経験（いずれかの経験があれば可）" ([Full remote work available \| Software Development Engineer (Cloud Platform Development)], Jun 18, 2025) |
| [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 229 | 1 | "Experience with Prometheus, Grafana, Elasticsearch, Kibana, FluentD, and Kubernetes deployment orchestration tools such as ArgoCD or Flux" (devops engineer, mid, Nov 6, 2026) |
| [JPMorganChase](https://sumble.com/orgs/jpmorgan-chase) | 179 | 18 | "Experience designing logging pipelines (Fluentd, Logstash, Vector) and systems for metrics collection, analysis, and distributed tracing" (Lead Software Engineer, Aug 1, 2026) |

## Is hiring for Fluentd growing?

0.51 in every 10,000 job posts named Fluentd from June to August 2026, against 0.67 from March to May. One company accounts for most of that change.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 88 | 1,413,673 | 0.62 |
| Nov 2025 | 142 | 1,822,119 | 0.78 |
| Dec 2025 | 79 | 1,236,103 | 0.64 |
| Jan 2026 | 101 | 1,828,002 | 0.55 |
| Feb 2026 | 131 | 1,856,647 | 0.71 |
| Mar 2026 | 106 | 1,850,711 | 0.57 |
| Apr 2026 | 132 | 1,728,886 | 0.76 |
| May 2026 | 126 | 1,821,509 | 0.69 |
| Jun 2026 | 102 | 1,909,496 | 0.53 |
| Jul 2026 | 90 | 1,815,180 | 0.50 |
| Aug 2026 | 90 | 1,835,698 | 0.49 |

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

From June to August 2026, 37 companies posted their first job naming Fluentd; 50 did from March to May. Over the 11 months from October 2025, 193 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 50 |
| June to August 2026 | 37 |
| October 2025 to August 2026 | 193 |

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 Fluentd?

The evidence for Fluentd is close to even: 43% of these companies name it in job posts, and 57% come from employees' profiles. 271 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Fluentd | 1,715 | 43% |
| Employees' profiles list Fluentd | 2,274 | 57% |

## What size are the companies that use Fluentd?

No size of company stands out for Fluentd. Companies with 50 to 999 employees make up the largest group, at 40%. 794 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 23% | 22% |
| 50 to 999 | 40% | 38% |
| 1,000 to 5,000 | 17% | 17% |
| Over 5,000 | 20% | 23% |

## Where are Fluentd companies based?

Japan is 6.5 times as common among Fluentd companies as on the typical tech page, at 4.1%. The United States leads overall with 39%. India is second, at 7.6%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,441 | 39% | 43% |
| India | 281 | 7.6% | 6.9% |
| United Kingdom | 197 | 5.3% | 6.4% |
| France | 176 | 4.7% | 4.6% |
| Germany | 151 | 4.1% | 4.4% |
| Japan | 151 | 4.1% | 0.63% |

## Which teams work with Fluentd?

Fluentd work is spread across teams. DevOps leads, at 31 companies. SRE and engineering teams come next, at 18 and 14 companies.

| Team | Companies |
|---|---:|
| DevOps | 31 |
| SRE | 18 |
| Engineering | 14 |
| Platform engineering | 11 |
| Infrastructure | 10 |
| Observability | 10 |

## Which roles mention Fluentd most?

Fluentd shows up across many roles. The top one, DevOps Engineer, has 20% of the job posts. The top four roles cover 49.5% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| DevOps Engineer | 20% | 239 | 66 | 52 |
| Software Engineer | 13% | 158 | 44 | 33 |
| Site Reliability Engineer | 9.2% | 109 | 32 | 23 |
| Platform Engineer | 6.9% | 82 | 31 | 23 |
| Cloud Engineer | 3.5% | 41 | 29 | 6 |
| Observability Engineer | 3.2% | 38 | 7 | 12 |

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

Between April and August 2026, Fluentd appeared for the first time in job posts at 52 companies: 32 commercial, 14 mid-market and 6 enterprise. Among the new enterprise companies, Dynatrace posted the most jobs naming it: 9.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Logz.io](https://sumble.com/orgs/logz-io) | 4 |
| Commercial | [Bestarion: AI-driven Delivery Partner](https://sumble.com/orgs/cong-ty-co-phan-phan-mem-bestarion) | 4 |
| Commercial | [SLTN](https://sumble.com/orgs/sltn-inter-access) | 3 |
| Commercial | [Crest Data](https://sumble.com/orgs/crest-data-systems) | 2 |
| Commercial | [Minfy](https://sumble.com/orgs/minfy) | 2 |
| Mid-market | [ABOUT YOU](https://sumble.com/orgs/about-you-se-&-co-kg) | 6 |
| Mid-market | [Blackhawk Network](https://sumble.com/orgs/blackhawk-network) | 2 |
| Mid-market | [New Relic](https://sumble.com/orgs/new-relic) | 2 |
| Mid-market | [nstech](https://sumble.com/orgs/nstechlog) | 2 |
| Mid-market | [Groupe TF1](https://sumble.com/orgs/tf1) | 1 |
| Enterprise | [Dynatrace](https://sumble.com/orgs/dynatrace) | 9 |
| Enterprise | [SAIC](https://sumble.com/orgs/saic) | 1 |
| Enterprise | [SBB CFF FFS](https://sumble.com/orgs/sbb) | 1 |
| Enterprise | [Västra Götalandsregionen](https://sumble.com/orgs/vastra-gotalandsregionen) | 1 |
| Enterprise | [Edwards Lifesciences](https://sumble.com/orgs/edwards-lifesciences) | 1 |

Companies that named Fluentd 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 Fluentd companies use?

The tool most tied to Fluentd is Fluentbit. 15% of Fluentd companies use it, 92 times the usual rate for their size. Among the tools listed here, Istio is the most widely used, at 27% of Fluentd companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Fluentbit | 141 | 15% | 0.16% | 92 times |
| Thanos | 90 | 9.5% | 0.24% | 40 times |
| Jaeger | 155 | 16% | 0.5% | 33 times |
| MinIO | 70 | 7.4% | 0.33% | 23 times |
| Linkerd | 103 | 11% | 0.51% | 22 times |
| Hashicorp Consul | 95 | 10% | 0.51% | 20 times |
| Loki | 206 | 22% | 1.1% | 19 times |
| Istio | 256 | 27% | 1.5% | 19 times |

Shares are out of the 944 companies whose job posts name Fluentd, not counting firms whose job posts name almost every technology.

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

After broad digital transformation work, teams hiring for Fluentd most often mention Cloud Cost Optimization, in 232 job posts. After that comes Microservices Migration, with 206.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 784 |
| Cloud Cost Optimization | 232 |
| Microservices Migration | 206 |
| Cloud Migration | 193 |

## 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.