# Companies using esbuild

846 companies in our data use esbuild, and 618 of them name it in job posts they wrote. Hiring for it is steady, with 441 job posts naming it from October 2025 to August 2026. It comes up most in Frontend Engineer job posts.

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

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

Attentive leads with 137 job posts naming esbuild, followed by Maximus and Fresha. Maximus is the newest of the five companies in the table, with its first job post naming it in June 2025.

| Company | Job posts | Recent job post |
|---|---:|---|
| [Attentive](https://sumble.com/orgs/attentive) | 137 | "Our frontend is built with React and TypeScript, and uses best practices like GraphQL, Storybook, Radix UI, Vite, esbuild, and Playwright" (Senior Software Engineer, Identity, Nov 4, 2026) |
| [Maximus](https://sumble.com/orgs/maximus) | 40 | "5 years of experience with at least five (5) of the following: NPM, Cypress.io, esbuild, Bun, Apache Tomcat, Maven, SonarQube." (Frontend Software Developer, Nov 1, 2026) |
| [Fresha](https://sumble.com/orgs/fresha) | 37 | "esbuild - Fast JavaScript bundler" (senior frontend engineer - b2b, Nov 4, 2026) |
| [Launchmetrics](https://sumble.com/orgs/launchmetrics) | 36 | "Develop and maintain front-end components and features using React, and implement efficient bundling/building processes using Esbuild, Vite or equivalent tools." (Full Stack Software Development Engineer PHP/React, Jul 17, 2026) |
| [Grupo Boticário](https://sumble.com/orgs/grupo-boticario) | 29 | "Tooling (webpack, esbuild, vite);" (Fullstack Node/React developer specializing in i-rgm, Jan 29, 2026) |

## Is hiring for esbuild growing?

Esbuild's share of job posts is about the same as three months earlier: 0.20 in every 10,000 job posts from June to August 2026, against 0.20 from March to May. From October to December 2025 it was 0.26.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 33 | 1,413,673 | 0.23 |
| Nov 2025 | 45 | 1,822,119 | 0.25 |
| Dec 2025 | 39 | 1,236,103 | 0.32 |
| Jan 2026 | 53 | 1,828,002 | 0.29 |
| Feb 2026 | 55 | 1,856,647 | 0.30 |
| Mar 2026 | 29 | 1,850,711 | 0.16 |
| Apr 2026 | 42 | 1,728,886 | 0.24 |
| May 2026 | 35 | 1,821,509 | 0.19 |
| Jun 2026 | 48 | 1,909,496 | 0.25 |
| Jul 2026 | 33 | 1,815,180 | 0.18 |
| Aug 2026 | 29 | 1,835,698 | 0.16 |

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

42 companies named esbuild in a job post for the first time from June to August 2026, against 43 from March to May. The 42 from June to August are 6.8% of all 618 companies whose job posts name it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 43 |
| June to August 2026 | 42 |
| October 2025 to August 2026 | 151 |

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 esbuild?

Job posts carry most of the evidence for esbuild: 73% of these companies name it in posts they wrote. 228 come from employees' profiles alone.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name esbuild | 618 | 73% |
| Employees' profiles list esbuild | 228 | 27% |

## What size are the companies that use esbuild?

Companies with 50 to 999 employees are the largest group of esbuild users, at 42%. 214 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 25% | 22% |
| 50 to 999 | 42% | 38% |
| 1,000 to 5,000 | 15% | 17% |
| Over 5,000 | 17% | 23% |

## Where are esbuild companies based?

43% of esbuild companies are based in the United States, and 6.6% in the United Kingdom. India is less common than usual, at 4.6% against 6.9% on the typical tech page.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 342 | 43% | 43% |
| United Kingdom | 52 | 6.6% | 6.4% |
| Germany | 40 | 5.1% | 4.4% |
| India | 36 | 4.6% | 6.9% |
| Brazil | 28 | 3.5% | 2.8% |
| Canada | 28 | 3.5% | 3.6% |

## Which teams work with esbuild?

Esbuild sits mostly with engineering teams (18 companies).

| Team | Companies |
|---|---:|
| Engineering | 18 |
| Development | 6 |
| Developer experience | 5 |
| Platform | 5 |
| Web platform | 5 |
| Frontend | 4 |

## Which roles mention esbuild most?

Frontend Engineer is the role behind 44% of the job posts that mention esbuild. Software Engineer is second, at 33%.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Frontend Engineer | 44% | 193 | 43 | 45 |
| Software Engineer | 33% | 144 | 28 | 38 |
| Infrastructure Engineer | 1.8% | 8 | 0 | 0 |
| Software Architect | 1.8% | 8 | 1 | 5 |
| Machine Learning | 1.6% | 7 | 1 | 1 |
| IT Support | 0.91% | 4 | 0 | 0 |

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

46 companies with 50 or more employees started naming esbuild in job posts between April and August 2026. 13 of them have more than 5,000 employees. Among the new enterprise companies, HCLTech posted the most jobs naming it: 3.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Nexus Mods](https://sumble.com/orgs/valkea) | 3 |
| Commercial | [Replit](https://sumble.com/orgs/repl-it) | 2 |
| Commercial | [Reapit](https://sumble.com/orgs/reapit) | 2 |
| Commercial | [Lendistry](https://sumble.com/orgs/mmc,-llc-2) | 2 |
| Commercial | [Oh Polly](https://sumble.com/orgs/oh-polly) | 2 |
| Mid-market | [TeamViewer](https://sumble.com/orgs/teamviewer) | 3 |
| Mid-market | [Saint-Gobain International IT Delivery Centre](https://sumble.com/orgs/saint-gobain-indec) | 2 |
| Mid-market | [FICO](https://sumble.com/orgs/fico) | 1 |
| Mid-market | [Hyland](https://sumble.com/orgs/hyland) | 1 |
| Mid-market | [NEORIS](https://sumble.com/orgs/neoris) | 1 |
| Enterprise | [HCLTech](https://sumble.com/orgs/hcltech) | 3 |
| Enterprise | [PayPal](https://sumble.com/orgs/paypal) | 2 |
| Enterprise | [Luxoft](https://sumble.com/orgs/luxoft) | 2 |
| Enterprise | [Swiggy](https://sumble.com/orgs/swiggy) | 2 |
| Enterprise | [Zscaler](https://sumble.com/orgs/zscaler) | 2 |

Companies that named esbuild 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 esbuild companies use?

25% of esbuild companies also use Rollup, against 0.31% of similar companies. Emotion comes second, 44 times as common as usual, at 6.7%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Rollup | 108 | 25% | 0.31% | 80 times |
| Emotion | 29 | 6.7% | 0.15% | 44 times |
| Parcel | 25 | 5.8% | 0.14% | 42 times |
| Vite | 284 | 66% | 1.6% | 40 times |
| Recoil | 24 | 5.6% | 0.2% | 28 times |
| Zustand | 87 | 20% | 0.77% | 26 times |
| CaptivateIQ | 24 | 5.6% | 0.21% | 26 times |
| Styled Components | 70 | 16% | 0.71% | 23 times |

Shares are out of the 432 companies whose job posts name esbuild, not counting firms whose job posts name almost every technology.

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

Setting aside broad digital transformation, Design System Migration is the theme teams hiring for esbuild mention most, in 41 job posts. After that comes Frontend Migration, with 38.

| Project theme | Job posts |
|---|---:|
| Digital Transformation | 126 |
| Design System Migration | 41 |
| Frontend Migration | 38 |
| Microservices Migration | 26 |

## 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.