# Companies using PowerSI

We found 167 companies that use PowerSI. 120 of them name it in their own job posts, and the rest through employees' public profiles. Its share of job posts held steady in the three months to August 2026; 243 job posts named it from October 2025 to August 2026. Product Security is the role that names it most often.

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

## Which companies name PowerSI in the most job posts?

Apple leads with 258 job posts naming PowerSI, followed by Marvell Technology and AMD. Three of these five companies are in Scientific and Technical Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Apple](https://sumble.com/orgs/apple) | 258 | 10 | "Signal/Power integrity simulation experience with Matlab, PowerSI, SIwave, HFSS, etc." (Baseband Hardware Design Engineer, May 13, 2026) |
| [Marvell Technology](https://sumble.com/orgs/marvell-technology) | 103 | 0 | "Power plane design, modeling and analysis using tools like PowerSI, SIwave" (Sr. Staff, Signal Integrity and Power Integrity Engineer, Oct 23, 2026) |
| [AMD](https://sumble.com/orgs/amd) | 54 | 5 | "Power simulation tools such as PowerSI, SIWave, Simplis" (Graduate Trainee - Product Development Engineer, May 12, 2026) |
| [Qualcomm](https://sumble.com/orgs/qualcomm) | 48 | 16 | "Drive Signal Integrity (SI) and Power Integrity (PI) analysis for PCB designs, leveraging simulation tools such as HFSS, ADS, and PowerSI to optimize performance." (Hardware Board Design Engineer, Senior, Sep 1, 2026) |
| [NVIDIA](https://sumble.com/orgs/nvidia) | 34 | 5 | "Hands-on experience with PowerSI, 3D modeling tools such as ANSYS HFSS/Q3D, 2.5D tools such as ANSYS SIwave (or similar), and 2D tools such as Ansys 2D" (Senior Signal and Power Integrity Engineer, Oct 24, 2026) |

## Is hiring for PowerSI growing?

Since late 2025, job posts mentioning PowerSI went from 0.11 to 0.14 in every 10,000 job posts, and the last three months were flat. Its busiest month was May 2026, at 0.18.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 15 | 1,413,673 | 0.11 |
| Nov 2025 | 25 | 1,822,119 | 0.14 |
| Dec 2025 | 10 | 1,236,103 | 0.08 |
| Jan 2026 | 22 | 1,828,002 | 0.12 |
| Feb 2026 | 20 | 1,856,647 | 0.11 |
| Mar 2026 | 18 | 1,850,711 | 0.10 |
| Apr 2026 | 23 | 1,728,886 | 0.13 |
| May 2026 | 32 | 1,821,509 | 0.18 |
| Jun 2026 | 21 | 1,909,496 | 0.11 |
| Jul 2026 | 30 | 1,815,180 | 0.17 |
| Aug 2026 | 27 | 1,835,698 | 0.15 |

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

From June to August 2026, 10 companies posted their first job naming PowerSI; 6 did from March to May. From October 2025 to August 2026, 23 companies named it in a job post for the first time.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 6 |
| June to August 2026 | 10 |
| October 2025 to August 2026 | 23 |

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 PowerSI?

Job posts carry most of the evidence for PowerSI: 72% of these companies name it in posts they wrote. 28 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name PowerSI | 120 | 72% |
| Employees' profiles list PowerSI | 47 | 28% |

## What size are the companies that use PowerSI?

Companies with more than 5,000 employees are the largest group of PowerSI users, at 32%, against 23% on the typical tech page. The second-largest group is companies with 50 to 999 employees, at 29%.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 21% | 22% |
| 50 to 999 | 29% | 38% |
| 1,000 to 5,000 | 18% | 17% |
| Over 5,000 | 32% | 23% |

## Where are PowerSI companies based?

65% of PowerSI companies are based in the United States. Taiwan is second, at 6.5%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 100 | 65% | 43% |
| Taiwan | 10 | 6.5% | 0.2% |
| India | 9 | 5.8% | 6.9% |
| China | 6 | 3.9% | 0.48% |
| Canada | 4 | 2.6% | 3.6% |
| United Kingdom | 4 | 2.6% | 6.4% |

## Which roles mention PowerSI most?

No single role dominates for PowerSI; Product Security leads with 19% of the job posts. Hardware Engineer is second, at 12%.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Product Security | 19% | 46 | 14 | 12 |
| Hardware Engineer | 12% | 30 | 9 | 5 |
| Package Designer | 7.4% | 18 | 7 | 3 |
| Systems Engineer | 6.2% | 15 | 7 | 2 |
| Power Engineer | 4.9% | 12 | 4 | 3 |
| Engineer | 4.1% | 10 | 7 | 2 |

## Which companies started naming PowerSI in job posts recently?

Between April and August 2026, PowerSI appeared for the first time in job posts at 10 companies: 3 commercial, 1 mid-market and 6 enterprise. Hewlett Packard Enterprise and Renesas Electronics lead the new enterprise companies, with 4 job posts each from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Etched](https://sumble.com/orgs/etched-ai) | 2 |
| Commercial | [Graphcore](https://sumble.com/orgs/graphcore) | 1 |
| Commercial | [捷普科技(上海)有限公司](https://sumble.com/orgs/捷普科技-上海-有限公司) | 1 |
| Enterprise | [Hewlett Packard Enterprise](https://sumble.com/orgs/hewlett-packard-enterprise-hpe) | 4 |
| Enterprise | [Renesas Electronics](https://sumble.com/orgs/renesas) | 4 |
| Enterprise | [Amazon Web Services (AWS)](https://sumble.com/orgs/amazon-web-services) | 3 |
| Enterprise | [Lenovo](https://sumble.com/orgs/lenovo) | 2 |
| Enterprise | [Lockheed Martin](https://sumble.com/orgs/lockheed-martin) | 1 |

Companies that named PowerSI 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 PowerSI companies use?

36% of PowerSI companies also use Veloce, against 0.03% of similar companies. Among the tools listed here, SIwave is the most widely used, at 70% of PowerSI companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Veloce | 17 | 36% | 0.03% | 1206 times |
| HAPS | 12 | 26% | 0.02% | 1115 times |
| Palladium | 20 | 43% | 0.04% | 1077 times |
| Zebu | 19 | 40% | 0.04% | 1069 times |
| Synopsys VCS | 13 | 28% | 0.03% | 1009 times |
| SIwave | 33 | 70% | 0.07% | 956 times |
| Q3D | 11 | 23% | 0.02% | 937 times |
| Verdi | 18 | 38% | 0.04% | 900 times |

Shares are out of the 47 companies whose job posts name PowerSI, 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.