EMCOR Services Mesa Energy has posted more jobs naming JCI than any other company: 235. Four of these five companies are in Professional Services.
CompanyPostsPeopleRecent job post
EMCOR Services Mesa EnergyProfessional Services · first seen Dec 20222351
"Working knowledge of at least three HVAC controls systems (preferably Delta, JCI or Andover)"Automation Technician III, Nov 1, 2026
EMCOR Group, Inc.Construction · first seen Sep 20222110
"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 & CompanyProfessional Services · first seen Nov 2022860
"…JCI, Siemens, ALC, BACnet, Modbus, etc is considered an asset."Mechanical Engineer, Nov 4, 2026
TDIndustries, Inc.Professional Services · first seen Sep 2022821
"Hands on experience with one or more controls platforms (Siemens, Distech, JCI, Inet, etc.)."Facilities Controls Tech II, Jun 1, 2026
McKinstryProfessional Services · first seen Sep 2022781
"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
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.
Show the data
Month
Job posts naming JCI
All job posts
Per 10,000
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.
March to May 202620
June to August 202617
October 2025 to August 202671
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 knowCompaniesShare
Job posts name JCI
3479.2%
Employees' profiles list JCI
3,42491%
3,771 companies. Each is counted once, under the strongest evidence we have for it.
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.
Share of its companies
Typical tech page
ShareTypical
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.
ShareTypical
United States
66%48%
Canada
4.3%3.8%
India
4.3%7.5%
Brazil
3.7%2.3%
Germany
3.4%4.4%
United Arab Emirates
3.1%0.78%
Companies in 29 countries and territories. Shares are of companies with a known headquarters country. Counts companies whose job posts name it.
Show the data
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.
TeamCompanies
Building automation
7
Facilities
5
Controls
4
Facilities management
4
Service
4
Automation & controls
3
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.
Share of the 260 JCI companies counted here whose job posts also name the tool
Typical for companies the same size
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.
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.
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.
RoleSharePosts
Skilled Trades
39%218
Mechanical Designer
14%78
Engineer
7.1%40
Control Engineer
5.9%33
Automation Engineer
3.9%22
Mechanical Engineer
3%17
Show the data
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
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.
