# Companies using LightTools

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.

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

## 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.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Apple](https://sumble.com/orgs/apple) | 286 | 70 | "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) |
| [Meta](https://sumble.com/orgs/meta-dd1502f2) | 179 | 34 | "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](https://sumble.com/orgs/kla-tencor) | 85 | 15 | "Capable of modeling optical performance, defining tolerances and degree of freedom for optical assembly using CodeV or LightTools." (Optical Engineer, Oct 23, 2026) |
| [Valeo](https://sumble.com/orgs/valeo-e77226bd) | 48 | 12 | "Knowledge with optical design software (e.g., SPEOS, Zemax, LightTools)." (Optic Engineer, May 22, 2026) |
| [Corning Incorporated](https://sumble.com/orgs/corning-4) | 36 | 12 | "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) |

## Is hiring for LightTools growing?

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.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| 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.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 18 |
| June to August 2026 | 37 |
| October 2025 to August 2026 | 94 |

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 know | Companies | Share |
|---|---:|---:|
| Job posts name LightTools | 397 | 38% |
| Employees' profiles list LightTools | 640 | 62% |

## 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.

| Size | Share | Typical tech page |
|---|---:|---:|
| 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%.

| 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.

| Team | Companies |
|---|---:|
| R&D | 11 |
| Optics | 8 |
| Optical engineering | 5 |
| ar/VR laboratory | 4 |
| Camera hardware engineering | 3 |
| Design technology | 3 |

## 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%.

| 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 |

## 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.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Foshan Electrical And Lighting Co., Ltd](https://sumble.com/orgs/foshan-electrical-and-lighting) | 3 |
| Commercial | [Muon Space](https://sumble.com/orgs/muon-space) | 2 |
| Commercial | [Changzhou Xingyu Automotive Lighting Systems](https://sumble.com/orgs/changzhou-xingyu-automotive-lighting-systems) | 2 |
| Commercial | [Optikos, LLC](https://sumble.com/orgs/optikos) | 2 |
| Commercial | [Exowatt](https://sumble.com/orgs/exowatt) | 2 |
| Mid-market | [Acuity Brands](https://sumble.com/orgs/acuity-brands) | 2 |
| Mid-market | [A*STAR - Agency for Science, Technology and Research](https://sumble.com/orgs/agency-for-science-technology-and-research-a*star) | 1 |
| Mid-market | [ALTEN India](https://sumble.com/orgs/alten-india) | 1 |
| Mid-market | [CEER](https://sumble.com/orgs/ceer-motors) | 1 |
| Mid-market | [Zipline](https://sumble.com/orgs/zipline-international) | 1 |
| Enterprise | [Motorola Solutions](https://sumble.com/orgs/motorola-solutions) | 2 |
| Enterprise | [Thermo Fisher Scientific](https://sumble.com/orgs/thermo-fisher-scientist) | 1 |
| Enterprise | [General Motors](https://sumble.com/orgs/general-motors) | 1 |
| Enterprise | [Panasonic](https://sumble.com/orgs/panasonic) | 1 |
| Enterprise | [HARMAN International](https://sumble.com/orgs/harman) | 1 |

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.

## 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.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| LucidShape | 28 | 12% | 0.01% | 906 times |
| TracePro | 46 | 19% | 0.03% | 660 times |
| SPEOS | 40 | 17% | 0.03% | 572 times |
| Code V | 142 | 59% | 0.12% | 500 times |
| OpticStudio | 14 | 5.8% | 0.02% | 318 times |
| Zemax | 196 | 81% | 0.3% | 267 times |
| MIPI | 31 | 13% | 0.16% | 82 times |
| Halcon | 16 | 6.6% | 0.09% | 71 times |

Shares are out of the 242 companies whose job posts name LightTools, 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.