We found 1,037 companies that use LightTools. 397 of them name it in their own job posts, and the rest through employees' public profiles. 426 job posts named it from October 2025 to August 2026. It comes up most in Optical Engineer job posts.
Which companies name LightTools in the most job posts?
Apple and Meta have the most job posts naming LightTools, with 286 and 179. Of the five companies in the table, Apple has the most employees who list it on their profiles: 70.
CompanyPostsPeopleRecent job post
AppleScientific and Technical Services · first seen Aug 202228670
"Lead optical architecture and development of compact electro-optical modules, including simulations (Zemax, CodeV, LightTools) for imaging, sensing, and system performance"Senior Electro-Optical Engineer, Jun 2, 2026
MetaInformation · first seen Aug 202217934
"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
KLAManufacturing · first seen Oct 20228515
"Capable of modeling optical performance, defining tolerances and degree of freedom for optical assembly using CodeV or LightTools."Optical Engineer, Oct 23, 2026
ValeoManufacturing · first seen Jul 20234812
"Knowledge with optical design software (e.g., SPEOS, Zemax, LightTools)."Optic Engineer, May 22, 2026
Corning IncorporatedManufacturing · first seen Aug 20223612
"Experience using a wide range of optical software analysis tools for both imaging and illumination systems, including CODE V, Zemax, LightTools, FRED, etc.."Optical Engineer - Lens Design & Systems Analysis, Nov 3, 2026
From March to May 2026, 0.20 in every 10,000 job posts named LightTools; from June to August, 0.23 in every 10,000 job posts. These are small numbers of job posts, so a few companies can move them.
Show the data
Month
Job posts naming LightTools
All job posts
Per 10,000
Oct 2025
31
1,413,673
0.22
Nov 2025
46
1,822,119
0.25
Dec 2025
29
1,236,103
0.23
Jan 2026
47
1,828,002
0.26
Feb 2026
36
1,856,647
0.19
Mar 2026
34
1,850,711
0.18
Apr 2026
34
1,728,886
0.20
May 2026
41
1,821,509
0.23
Jun 2026
51
1,909,496
0.27
Jul 2026
36
1,815,180
0.20
Aug 2026
41
1,835,698
0.22
How many companies named LightTools in a job post for the first time in recent months?
LightTools showed up in job posts at 37 companies for the first time from June to August 2026, and 18 in the three months before. That brings the companies naming it for the first time since October 2025 to 94, through August 2026.
March to May 202618
June to August 202637
October 2025 to August 202694
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 LightTools?
Employees' profiles account for 62% of the companies here. 397 companies name LightTools in job posts they wrote. 99 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name LightTools
39738%
Employees' profiles list LightTools
64062%
1,037 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use LightTools?
No size of company stands out for LightTools. Companies with 50 to 999 employees make up the largest group, at 37%. 244 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
24%22%
50 to 999
37%38%
1,000 to 5,000
18%17%
Over 5,000
22%23%
Where are LightTools companies based?
Beyond the United States (36%), LightTools is unusually common in China, at 5% of its companies. Germany is second, at 8.4%.
ShareTypical
United States
36%43%
Germany
8.4%4.4%
France
7.1%4.6%
India
5.7%6.9%
China
5%0.48%
United Kingdom
4.3%6.4%
Companies in 49 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
346
36%
43%
Germany
82
8.4%
4.4%
France
69
7.1%
4.6%
India
55
5.7%
6.9%
China
49
5%
0.48%
United Kingdom
42
4.3%
6.4%
Which teams work with LightTools?
R&D teams are the most common home for LightTools, at 11 companies, followed by optics and optical engineering.
TeamCompanies
R&D
11
Optics
8
Optical engineering
5
ar/VR laboratory
4
Camera hardware engineering
3
Design technology
3
What else do LightTools companies use?
The tool most tied to LightTools is LucidShape. 12% of LightTools companies use it, 906 times the usual rate for their size. Next is TracePro: 19% of these companies use it, against 0.03% of similar ones.
Share of the 242 LightTools companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming LightTools in job posts recently?
32 companies with 50 or more employees started naming LightTools in job posts between April and August 2026. 10 of them have more than 5,000 employees. Foshan Electrical And Lighting Co., Ltd has the most job posts of the new commercial companies, 3 from April to August.
Companies that named LightTools 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 LightTools most?
Most job posts naming LightTools are for one kind of role. Optical Engineer accounts for 57%. Optometrist is second, at 5.4%.
RoleSharePosts
Optical Engineer
57%244
Optometrist
5.4%23
Chip Designer
4%17
Mechanical Engineer
3.8%16
Engineer
1.6%7
Hardware Engineer
1.4%6
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Optical Engineer
57%
244
59
84
Optometrist
5.4%
23
9
8
Chip Designer
4%
17
2
2
Mechanical Engineer
3.8%
16
8
4
Engineer
1.6%
7
1
2
Hardware Engineer
1.4%
6
1
0
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.
