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Companies using Zemax

5,167 companies use Zemax, based on their job posts and their employees' public profiles. Hiring for it is steady, with 2,289 job posts naming it from October 2025 to August 2026. It comes up most in Optical Engineer job posts.

Data as of November 9, 2026 · Markdown version

Which companies name Zemax in the most job posts?

The five companies with the most job posts naming Zemax are L3Harris Technologies, Apple, Meta, KLA and ASML. Of the five companies in the table, Apple has the most employees who list it on their profiles: 342.
Company Posts People Recent job post
L3Harris Technologies Manufacturing · first seen Jul 2022 524 58 "Knowledge of Code V and/or Zemax software tools"Associate, Electrical Engineering (Rochester, NY), Nov 4, 2026
Apple Scientific and Technical Services · first seen Aug 2022 368 342 "Proficiency with standard optical simulation and modeling tools (e.g., Zemax OpticStudio, Code V, FRED, or LightTools) and numerical analysis (Python, MATLAB)"Physicist & Optical Scientist - Q, Nov 7, 2026
Meta Information · first seen Aug 2022 291 155 "8+ years experience in optical design using standard design software such as Lumerical, Virtual Lab, FRED, LightTools, Zemax, or CODE V"Optical Scientist - DSR, Nov 4, 2026
KLA Manufacturing · first seen Sep 2022 197 146 "The candidate will be using ray-tracing programs such as Zemax and other industry standard software."Optical Engineering Intern, Oct 23, 2026
ASML Manufacturing · first seen Aug 2022 177 218 "Design and model optical systems using CODE V, Zemax, or comparable optical design software."Senior Optical Sensing Engineer, Oct 9, 2026
Showing 1 to 5 of 1,741 companies with job posts Sign up to see all companies using Zemax ›

What else do we know about Zemax?

Is hiring for Zemax growing?

Since late 2025, job posts mentioning Zemax went from 1.0 to 1.3 in every 10,000 job posts, and the last three months were flat.
Share of job posts naming Zemax by month, October 2025 to August 2026, in job posts in every 10,000 Moves from 1.0 in October 2025 to 1.4 in August 2026, in job posts in every 10,000. 1.6 1.2 0.80 0.40 0 1.4 Oct '25 Nov Dec Jan '26 Feb Mar Apr May Jun Jul Aug
Show the data
MonthJob posts naming ZemaxAll job postsPer 10,000
Oct 20251471,413,6731.0
Nov 20251751,822,1190.96
Dec 20251301,236,1031.1
Jan 20262001,828,0021.1
Feb 20262111,856,6471.1
Mar 20262341,850,7111.3
Apr 20262081,728,8861.2
May 20262541,821,5091.4
Jun 20262291,909,4961.2
Jul 20262521,815,1801.4
Aug 20262491,835,6981.4

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

108 companies named Zemax in a job post for the first time from June to August 2026, against 84 from March to May. Of the 1,741 companies whose job posts name it, 6.2% first named it from June to August.
March to May 2026 84
June to August 2026 108
October 2025 to August 2026 313

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 Zemax?

We found 5,167 companies that use Zemax, 3,426 of them through employees' profiles alone. 852 show up in both job posts and employees' profiles.
How we know Companies Share
Job posts name Zemax
1,741 34%
Employees' profiles list Zemax
3,426 66%

5,167 companies. Each is counted once, under the strongest evidence we have for it.

What size are the companies that use Zemax?

Companies with fewer than 50 employees are 1.4 times as common among Zemax users as on the typical tech page. 741 of its companies have more than 5,000 employees.

Share of its companies Typical tech page

ShareTypical
Under 50 employees
30% 22%
50 to 999
39% 38%
1,000 to 5,000
16% 17%
Over 5,000
14% 23%

Where are Zemax companies based?

Beyond the United States (38%), Zemax is unusually common in Germany, at 11% of its companies. Its companies are based in 71 countries and territories.
ShareTypical
United States
38% 43%
Germany
11% 4.4%
France
5.3% 4.6%
United Kingdom
5.3% 6.4%
Canada
3.5% 3.6%
India
3.4% 6.9%

Companies in 71 countries and territories. Shares are of companies with a known headquarters country.

Show the data
CountryCompaniesShareTypical tech page
United States1,85938%43%
Germany52211%4.4%
France2595.3%4.6%
United Kingdom2575.3%6.4%
Canada1703.5%3.6%
India1673.4%6.9%

Which teams work with Zemax?

R&D teams are the most common home for Zemax, at 62 companies, followed by optical engineering and engineering. Optics and optical design teams follow.
Team Companies
R&D
62
Optical engineering
38
Engineering
33
Optics
31
Optical design
16
Systems engineering
15

What else do Zemax companies use?

Code V, LightTools and TracePro show up far more often at Zemax companies than at companies of the same size. Next is SpaceWire: 5.3% of these companies use it, against 0.05% of similar ones.

Share of the 1,265 Zemax companies counted here whose job posts also name the tool Typical for companies the same size

Tool Also name it Typical Times as common
Code V 488 companies
39% 0.12% 330x
LightTools 196 companies
15% 0.06% 267x
TracePro 88 companies
7% 0.03% 240x
SpaceWire 67 companies
5.3% 0.05% 111x
Tool Also name it Typical Times as common
LVDS 129 companies
10% 0.16% 63x
Ansys HFSS 122 companies
9.6% 0.16% 60x
Keysight ADS 66 companies
5.2% 0.09% 57x
Vivado 183 companies
14% 0.26% 55x

Which companies started naming Zemax in job posts recently?

Between April and August 2026, Zemax appeared for the first time in job posts at 92 companies: 63 commercial, 19 mid-market and 10 enterprise. Celestica has the most job posts of the new enterprise companies, 4 from April to August.
AI native any size · 1 new
Company Posts
Lyte 1
Commercial 50 to 999 employees · 63 new
Company Posts
Pasqal 4
SSC - Swedish Space Corporation 3
True Anomaly 3
Electro Optic Systems 3
Nu Quantum 3
Mid-market 1,000 to 5,000 employees · 19 new
Company Posts
HID 2
Vrije Universiteit Brussel 2
Warby Parker 2
Radiall 2
ZKW 2
Enterprise over 5,000 employees · 10 new
Company Posts
Celestica 4
Tata Consultancy Services 2
Motorola Solutions 2
Dentsply Sirona 2
Royal Enfield 2

Companies that named Zemax 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 Zemax most?

Optical Engineer roles make up 53% of the job posts that name Zemax. The top four roles cover 63% of these job posts.
Role Share Posts
Optical Engineer
53% 1,204
Mechanical Engineer
5.5% 125
Optometrist
2.6% 60
Electrical Engineer
2.5% 57
Systems Engineer
2.4% 54
Physicist
2.2% 51
Show the data
RoleShareOct 2025 to Aug 2026Mar to May 2026Jun to Aug 2026
Optical Engineer53%1,204336395
Mechanical Engineer5.5%1255335
Optometrist2.6%601422
Electrical Engineer2.5%571622
Systems Engineer2.4%541712
Physicist2.2%511616
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.