5,623 companies use HFSS, based on their job posts and their employees' public profiles. Its share of job posts held steady in the three months to August 2026; 3,924 job posts named it from October 2025 to August 2026. Electrical Engineer roles mention it most.
Skyworks Solutions, Inc., Apple and L3Harris Technologies mention HFSS in the most job posts. Raytheon Technologies is the newest of the five companies in the table, with its first job post naming it in June 2023.
CompanyPostsPeopleRecent job post
Skyworks Solutions, Inc.Manufacturing · first seen Sep 2022862119
"Perform detailed nonlinear modeling, 2.5D/3D EM co-simulation, and circuit optimization using ADS, HFSS, Cadence, and similar tools."Sr. Principal RF/MMIC Design Engineer, Nov 7, 2026
AppleScientific and Technical Services · first seen Sep 2022724300
"Proficiency with EM passive designs and familiarity with EM simulation tools like HFSS, EMX, or Momentum."RF Passive Design Engineer, Nov 6, 2026
L3Harris TechnologiesManufacturing · first seen Jul 202264226
"Utilize design tools such as HFSS, CST, MATLAB, and GRASP"Associate, Electrical Engineering (Rochester, NY), Nov 4, 2026
Qorvo, Inc.Manufacturing · first seen Jul 202256388
"Expert-level user in 3D EM simulation tools such as HFSS and/or Analyst and knowledge of one or more of the following: ADS, Microwave Office (MWO) or Cadence (Spectre) circuit simulators."staff module design engineer, Oct 24, 2026
Raytheon TechnologiesManufacturing · first seen Jun 202354864
"Hands-on experience with electromagnetic simulation tools such as HFSS, ADS, CST, or Mentor Graphics’ Xpedition and analytical tools such as Matlab"Antenna and Microwave Design Section Lead, Nov 6, 2026
Since late 2025, job posts mentioning HFSS went from 1.8 to 2.3 in every 10,000 job posts, and the last three months were flat.
Show the data
Month
Job posts naming HFSS
All job posts
Per 10,000
Oct 2025
254
1,413,673
1.8
Nov 2025
329
1,822,119
1.8
Dec 2025
222
1,236,103
1.8
Jan 2026
319
1,828,002
1.7
Feb 2026
381
1,856,647
2.1
Mar 2026
372
1,850,711
2.0
Apr 2026
366
1,728,886
2.1
May 2026
413
1,821,509
2.3
Jun 2026
398
1,909,496
2.1
Jul 2026
413
1,815,180
2.3
Aug 2026
457
1,835,698
2.5
How many companies named HFSS in a job post for the first time in recent months?
123 companies named HFSS in a job post for the first time from June to August 2026, against 91 from March to May. Of the 1,905 companies whose job posts name it, 6.5% first named it from June to August.
March to May 202691
June to August 2026123
October 2025 to August 2026368
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 HFSS?
Employees' profiles account for 66% of the companies here. 1,905 companies name HFSS in job posts they wrote. 676 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name HFSS
1,90534%
Employees' profiles list HFSS
3,71866%
5,623 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use HFSS?
Companies with 50 to 999 employees are the largest group of HFSS users, at 42%. 1,287 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
23%22%
50 to 999
42%38%
1,000 to 5,000
18%17%
Over 5,000
17%23%
Where are HFSS companies based?
India is 1.4 times as common among HFSS companies as on the typical tech page, at 9.7%. The United States leads overall with 35%. Its companies are based in 93 countries and territories.
ShareTypical
United States
35%43%
India
9.7%6.9%
France
6.4%4.6%
United Kingdom
5.3%6.4%
Germany
4.6%4.4%
Canada
3.9%3.6%
Companies in 93 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
1,895
35%
43%
India
520
9.7%
6.9%
France
340
6.4%
4.6%
United Kingdom
286
5.3%
6.4%
Germany
244
4.6%
4.4%
Canada
211
3.9%
3.6%
Which teams work with HFSS?
Engineering teams are by far the most common home for HFSS, at 56 companies. R&D and RF teams come next, at 26 companies each.
TeamCompanies
Engineering
56
R&D
26
RF
26
Hardware
18
Hardware engineering
18
RF engineering
18
What else do HFSS companies use?
Compared with companies of the same size, HFSS companies stand out for using Microwave Office and FEKO. SIwave comes third, 179 times as common as usual, at 11%.
Share of the 1,289 HFSS companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming HFSS in job posts recently?
From April to August 2026, 101 companies with 50 or more employees posted their first job naming HFSS: 66 commercial, 24 mid-market and 11 enterprise. K2 Space Corporation leads the new commercial companies, with 5 job posts from April to August.
Companies that named HFSS 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 HFSS most?
Electrical Engineer and Hardware Engineer roles account for 40% of the job posts that name HFSS. Electrical Engineer posts naming it numbered 299 from March to May 2026 and 321 from June to August.
RoleSharePosts
Electrical Engineer
26%1,016
Hardware Engineer
14%553
Telecommunications Engineer
6.5%255
Chip Designer
5.9%233
Systems Engineer
2.5%99
Engineer
2.1%81
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Electrical Engineer
26%
1,016
299
321
Hardware Engineer
14%
553
116
162
Telecommunications Engineer
6.5%
255
75
86
Chip Designer
5.9%
233
65
55
Systems Engineer
2.5%
99
23
34
Engineer
2.1%
81
23
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.
