# Companies using JCI

347 companies name JCI in their own job posts. 561 job posts named it from October 2025 to August 2026. It comes up most in Skilled Trades job posts.

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

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

EMCOR Services Mesa Energy has posted more jobs naming JCI than any other company: 235. Four of these five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [EMCOR Services Mesa Energy](https://sumble.com/orgs/emcor-services-mesa-energy-systems) | 235 | 1 | "Working knowledge of at least three HVAC controls systems (preferably Delta, JCI or Andover)" (Automation Technician III, Nov 1, 2026) |
| [EMCOR Group, Inc.](https://sumble.com/orgs/emcor-5) | 211 | 0 | "Control systems product line knowledge with ALC, Alerton, Delta, Distech, Honeywell, JCI, Loytec, Niagara, or Trane a plus." (Sr Automation Design Engineer, Oct 17, 2025) |
| [Merrick & Company](https://sumble.com/orgs/merrick-&-company) | 86 | 0 | "…JCI, Siemens, ALC, BACnet, Modbus, etc is considered an asset." (Mechanical Engineer, Nov 4, 2026) |
| [TDIndustries, Inc.](https://sumble.com/orgs/tdindustries) | 82 | 1 | "Hands on experience with one or more controls platforms (Siemens, Distech, JCI, Inet, etc.)." (Facilities Controls Tech II, Jun 1, 2026) |
| [McKinstry](https://sumble.com/orgs/mckinstry) | 78 | 1 | "Working knowledge of mechanical and controls systems such as Siemens, JCI, ATS, and others." (hiring our heroes 26-1: building energy engineer, Sep 27, 2025) |

## Is hiring for JCI growing?

0.26 in every 10,000 job posts named JCI from June to August 2026, against 0.37 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 | 30 | 1,413,673 | 0.21 |
| Nov 2025 | 57 | 1,822,119 | 0.31 |
| Dec 2025 | 27 | 1,236,103 | 0.22 |
| Jan 2026 | 46 | 1,828,002 | 0.25 |
| Feb 2026 | 55 | 1,856,647 | 0.30 |
| Mar 2026 | 42 | 1,850,711 | 0.23 |
| Apr 2026 | 65 | 1,728,886 | 0.38 |
| May 2026 | 93 | 1,821,509 | 0.51 |
| Jun 2026 | 78 | 1,909,496 | 0.41 |
| Jul 2026 | 32 | 1,815,180 | 0.18 |
| Aug 2026 | 36 | 1,835,698 | 0.20 |

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

17 companies named JCI in a job post for the first time from June to August 2026, against 20 from March to May. The 17 from June to August are 4.9% of all 347 companies whose job posts name it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 20 |
| June to August 2026 | 17 |
| October 2025 to August 2026 | 71 |

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 JCI?

Of the 3,771 companies here, 3,424 are known from what employees list on their profiles. 347 name it in their own job posts.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name JCI | 347 | 9.2% |
| Employees' profiles list JCI | 3,424 | 91% |

## What size are the companies that use JCI?

No size of company stands out for JCI. Companies with 50 to 999 employees make up the largest group, at 39%. The second-largest group is companies with fewer than 50 employees, at 23%. These counts cover the 347 companies whose job posts name it.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 23% | 26% |
| 50 to 999 | 39% | 37% |
| 1,000 to 5,000 | 17% | 15% |
| Over 5,000 | 21% | 22% |

## Where are JCI companies based?

More than half of JCI companies are in the United States (66%). Its companies are based in 29 countries and territories. These shares cover the 347 companies whose job posts name it.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 214 | 66% | 48% |
| Canada | 14 | 4.3% | 3.8% |
| India | 14 | 4.3% | 7.5% |
| Brazil | 12 | 3.7% | 2.3% |
| Germany | 11 | 3.4% | 4.4% |
| United Arab Emirates | 10 | 3.1% | 0.78% |

## Which teams work with JCI?

JCI work is spread across teams. Building automation leads, at 7 companies.

| Team | Companies |
|---|---:|
| Building automation | 7 |
| Facilities | 5 |
| Controls | 4 |
| Facilities management | 4 |
| Service | 4 |
| Automation & controls | 3 |

## Which roles mention JCI most?

JCI shows up across many roles. The top one, Skilled Trades, has 39% of the job posts. The top four roles cover 66% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Skilled Trades | 39% | 218 | 80 | 62 |
| Mechanical Designer | 14% | 78 | 39 | 28 |
| Engineer | 7.1% | 40 | 15 | 7 |
| Control Engineer | 5.9% | 33 | 13 | 5 |
| Automation Engineer | 3.9% | 22 | 6 | 4 |
| Mechanical Engineer | 3% | 17 | 8 | 1 |

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

Between April and August 2026, 19 companies with 50 or more employees first named JCI in a job post, 4 of them with more than 5,000 employees. Among the new enterprise companies, Trane Technologies posted the most jobs naming it: 5.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Tesla Laboratories, Inc.](https://sumble.com/orgs/tesla-laboratories,-inc.-2) | 3 |
| Commercial | [Grupo San Pablo](https://sumble.com/orgs/gruposanpablo) | 2 |
| Commercial | [The Building People](https://sumble.com/orgs/building-people) | 2 |
| Commercial | [Dünyagöz Hastaneler Grubu](https://sumble.com/orgs/dunyagoz) | 1 |
| Commercial | [Even](https://sumble.com/orgs/even-healthcare) | 1 |
| Enterprise | [Trane Technologies](https://sumble.com/orgs/tranetechnologies) | 5 |
| Enterprise | [CommonSpirit Health](https://sumble.com/orgs/commonspirit-health) | 2 |
| Enterprise | [Max Healthcare](https://sumble.com/orgs/max-healthcare) | 1 |
| Enterprise | [Sompo](https://sumble.com/orgs/sompo-international) | 1 |

Companies that named JCI 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 JCI companies use?

Compared with companies of the same size, JCI companies stand out for using Distech and Alerton. Next is Tridium: 26% of these companies use it, against 0.23% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Distech | 78 | 30% | 0.17% | 182 times |
| Alerton | 39 | 15% | 0.12% | 127 times |
| Tridium | 67 | 26% | 0.23% | 113 times |
| Trane | 82 | 32% | 0.29% | 109 times |
| Niagara | 86 | 33% | 0.34% | 98 times |
| LonWorks | 56 | 22% | 0.22% | 96 times |
| Daikin | 21 | 8.1% | 0.09% | 91 times |
| York | 13 | 5% | 0.06% | 86 times |

Shares are out of the 260 companies whose job posts name JCI, not counting firms whose job posts name almost every technology.

## 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.