# Companies using ASPEN Oneliner

We found 473 companies that use ASPEN Oneliner. 250 of them name it in their own job posts, and the rest through employees' public profiles. From October 2025 to August 2026, 434 job posts named it. Safety Engineer roles mention it most.

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

## Which companies name ASPEN Oneliner in the most job posts?

The companies with the most job posts naming ASPEN Oneliner are POWER Engineers (410), Electrical Consultants, Inc. (211) and AECOM (119). Four of these five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [POWER Engineers](https://sumble.com/orgs/power-engineers) | 410 | 3 | "Applicable software: AcSELerator Quickset, GE Enervista, ASPEN Oneliner, SKM-PTW, ETAP, RSCAD/RTDS" (Power System Protection Engineer - Mid Level, Nov 19, 2025) |
| [Electrical Consultants, Inc.](https://sumble.com/orgs/electrical-consultants) | 211 | 4 | "ASPEN OneLiner or PSSE CAPE experience;" (Protection Engineer, Nov 6, 2026) |
| [AECOM](https://sumble.com/orgs/aecom) | 119 | 3 | "Relay coordination utilizing ASPEN OneLiner" (Protection and Controls Engineer, Oct 24, 2026) |
| [Leidos](https://sumble.com/orgs/leidos) | 97 | 4 | "Capable of understanding Aspen OneLiner / Siemens CAPE for coordination and fault studies." (Senior Relay Settings Engineer, Oct 21, 2026) |
| [Eversource Energy](https://sumble.com/orgs/eversource-energy) | 88 | 10 | "If no experience with production cost modeling, experience with power system analysis software such as PSS/E, TARA, Powerworld, ASPEN Oneliner, etc." (Analyst, Strategy and Economics (hybrid schedule), Oct 28, 2026) |

## Is hiring for ASPEN Oneliner growing?

0.19 in every 10,000 job posts named ASPEN Oneliner from June to August 2026, against 0.24 from March to May. 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 | 35 | 1,413,673 | 0.25 |
| Nov 2025 | 39 | 1,822,119 | 0.21 |
| Dec 2025 | 28 | 1,236,103 | 0.23 |
| Jan 2026 | 46 | 1,828,002 | 0.25 |
| Feb 2026 | 51 | 1,856,647 | 0.27 |
| Mar 2026 | 46 | 1,850,711 | 0.25 |
| Apr 2026 | 48 | 1,728,886 | 0.28 |
| May 2026 | 33 | 1,821,509 | 0.18 |
| Jun 2026 | 39 | 1,909,496 | 0.20 |
| Jul 2026 | 24 | 1,815,180 | 0.13 |
| Aug 2026 | 45 | 1,835,698 | 0.25 |

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

Job posts named ASPEN Oneliner for the first time at 11 companies from June to August 2026, against 14 from March to May. That brings the companies naming it for the first time since October 2025 to 49, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 14 |
| June to August 2026 | 11 |
| October 2025 to August 2026 | 49 |

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 ASPEN Oneliner?

250 of the 473 companies name ASPEN Oneliner in their own job posts. The other 223 show up because employees list it on their profiles. 70 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name ASPEN Oneliner | 250 | 53% |
| Employees' profiles list ASPEN Oneliner | 223 | 47% |

## What size are the companies that use ASPEN Oneliner?

44% of ASPEN Oneliner users are companies with 50 to 999 employees, the largest size group. 75 of its companies have fewer than 50 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 16% | 22% |
| 50 to 999 | 44% | 38% |
| 1,000 to 5,000 | 20% | 17% |
| Over 5,000 | 20% | 23% |

## Where are ASPEN Oneliner companies based?

73% of ASPEN Oneliner companies are based in the United States. Canada is second, at 8.7%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 329 | 73% | 43% |
| Canada | 39 | 8.7% | 3.6% |
| United Kingdom | 15 | 3.3% | 6.4% |
| Australia | 9 | 2% | 2.2% |
| Brazil | 7 | 1.6% | 2.8% |
| Spain | 6 | 1.3% | 1.8% |

## Which teams work with ASPEN Oneliner?

Engineering and protection & control engineering teams are tied as the most common home for ASPEN Oneliner, at 8 companies each.

| Team | Companies |
|---|---:|
| Engineering | 8 |
| Protection & control engineering | 8 |
| Substation engineering | 8 |
| Power delivery | 7 |
| Distribution planning | 6 |
| System planning | 5 |

## Which roles mention ASPEN Oneliner most?

Safety Engineer is the most common role, in 26% of job posts naming ASPEN Oneliner. The top four roles cover 64% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Safety Engineer | 26% | 113 | 34 | 19 |
| Electrical Engineer | 15% | 66 | 26 | 14 |
| Power Engineer | 15% | 65 | 17 | 21 |
| Control Engineer | 8.1% | 35 | 6 | 9 |
| Skilled Trades | 6.7% | 29 | 6 | 7 |
| Engineer | 4.4% | 19 | 4 | 6 |

## Which companies started naming ASPEN Oneliner in job posts recently?

12 companies with 50 or more employees started naming ASPEN Oneliner in job posts between April and August 2026. 3 of them have more than 5,000 employees.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Xodus](https://sumble.com/orgs/xodus-group) | 2 |
| Commercial | [PJM Interconnection](https://sumble.com/orgs/pjm-interconnection) | 1 |
| Commercial | [Resonetics](https://sumble.com/orgs/resonetics,-llc) | 1 |
| Commercial | [Baker Electric](https://sumble.com/orgs/baker-electric) | 1 |
| Commercial | [Nexus Engineering Group](https://sumble.com/orgs/nexus-engineering-group) | 1 |
| Mid-market | [WSB](https://sumble.com/orgs/wsb-&-associates) | 2 |
| Mid-market | [Audubon Companies](https://sumble.com/orgs/audubon-companies) | 1 |
| Mid-market | [Blattner](https://sumble.com/orgs/blattner) | 1 |
| Enterprise | [Mitsubishi Electric](https://sumble.com/orgs/mitsubishi-electric-power-products) | 2 |
| Enterprise | [Worley](https://sumble.com/orgs/worley) | 1 |
| Enterprise | [RWE](https://sumble.com/orgs/rwe) | 1 |

Companies that named ASPEN Oneliner 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 ASPEN Oneliner companies use?

Compared with companies of the same size, ASPEN Oneliner companies stand out for using MFAD and GE PSLF. Milsoft comes third, 289 times as common as usual, at 9.6%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| MFAD | 39 | 23% | 0.07% | 344 times |
| GE PSLF | 18 | 11% | 0.04% | 300 times |
| Milsoft | 16 | 9.6% | 0.03% | 289 times |
| Beckwith | 14 | 8.4% | 0.03% | 267 times |
| PoleForeman | 20 | 12% | 0.05% | 260 times |
| PowerWorld | 65 | 39% | 0.16% | 246 times |
| PSLF | 48 | 29% | 0.12% | 243 times |
| TSAT | 23 | 14% | 0.06% | 241 times |

Shares are out of the 166 companies whose job posts name ASPEN Oneliner, 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.