# Companies using ProMax

We found 3,173 companies that use ProMax. 473 of them name it in their own job posts, and the rest through employees' public profiles. From October 2025 to August 2026, 511 job posts named it. It comes up most in Engineer job posts.

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

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

Hargrove Engineers & Constructors, Energy Transfer and Audubon Companies are among the companies with the most job posts naming ProMax. Three of these five companies are in Professional Services.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Hargrove Engineers & Constructors](https://sumble.com/orgs/hargrove-engineers-+-constructors) | 267 | 3 | "Knowledgeable in the use of process simulation software such as Aspen Plus, Aspen Plus Dynamics, PRO/II, DYNSIM, HYSYS, CHEMCAD, WinGEMS, ProMax, etc." (Process Engineer IV, Oct 10, 2026) |
| [Energy Transfer](https://sumble.com/orgs/energy-transfer) | 144 | 16 | "Specialized software like TankESP, GRI GlyCalc, ProMax, and/or other simulation software is preferred." (staff engineer - air permitting, Apr 22, 2026) |
| [Audubon Companies](https://sumble.com/orgs/audubon-companies) | 141 | 6 | "HYSYS, ProMax or equivalent software experience preferred." (Process Engineer, Principal, Sep 17, 2026) |
| [ZAP Engineering & Construction Services, Inc.](https://sumble.com/orgs/zap-engineering-&-constructions-services) | 110 | 1 | "Experience with HYSYS, Unisim, ProMax, and/or VMG Symmetry and proficiency in Microsoft Office Suite, including Word, Outlook, and Excel." (I&C Engineer 1, Jul 22, 2026) |
| [Targa Resources](https://sumble.com/orgs/targa-resources) | 106 | 12 | "Develop process simulations and material & energy balances using ProMax software" (Process Engineer, Oct 23, 2026) |

## Is hiring for ProMax growing?

Job posts mentioning ProMax went from 0.27 to 0.32 in every 10,000 job posts, comparing March to May with June to August 2026. 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 | 40 | 1,413,673 | 0.28 |
| Nov 2025 | 37 | 1,822,119 | 0.20 |
| Dec 2025 | 29 | 1,236,103 | 0.23 |
| Jan 2026 | 44 | 1,828,002 | 0.24 |
| Feb 2026 | 34 | 1,856,647 | 0.18 |
| Mar 2026 | 49 | 1,850,711 | 0.26 |
| Apr 2026 | 48 | 1,728,886 | 0.28 |
| May 2026 | 50 | 1,821,509 | 0.27 |
| Jun 2026 | 58 | 1,909,496 | 0.30 |
| Jul 2026 | 50 | 1,815,180 | 0.28 |
| Aug 2026 | 72 | 1,835,698 | 0.39 |

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

In the three months to August 2026, 22 companies posted about ProMax for the first time. From March to May, 17 did. That brings the companies naming it for the first time since October 2025 to 51, through August 2026.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 17 |
| June to August 2026 | 22 |
| October 2025 to August 2026 | 51 |

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 ProMax?

2,700 of the 3,173 companies show up because employees list ProMax on their profiles; 473 name it in their own job posts. 213 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name ProMax | 473 | 15% |
| Employees' profiles list ProMax | 2,700 | 85% |

## What size are the companies that use ProMax?

No size of company stands out for ProMax. Companies with 50 to 999 employees make up the largest group, at 41%. 647 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 18% | 22% |
| 50 to 999 | 41% | 38% |
| 1,000 to 5,000 | 21% | 17% |
| Over 5,000 | 20% | 23% |

## Where are ProMax companies based?

ProMax has an unusually large following in Indonesia: 3.2% of its companies, against 0.64% on the typical tech page. Its companies are based in 87 countries and territories.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,254 | 41% | 43% |
| Brazil | 213 | 7% | 2.8% |
| United Kingdom | 201 | 6.6% | 6.4% |
| Canada | 160 | 5.2% | 3.6% |
| Australia | 111 | 3.6% | 2.2% |
| Indonesia | 99 | 3.2% | 0.64% |

## Which teams work with ProMax?

Job posts for ProMax point to process engineering teams far more than any other, at 35 companies. Next come operations teams (14 companies) and process teams (12).

| Team | Companies |
|---|---:|
| Process engineering | 35 |
| Operations | 14 |
| Process | 12 |
| Facilities engineering | 11 |
| Air quality | 7 |
| Engineering | 7 |

## Which roles mention ProMax most?

No single role dominates for ProMax; Engineer leads with 20% of the job posts. Chemical Engineer is second, at 14%.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Engineer | 20% | 104 | 25 | 27 |
| Chemical Engineer | 14% | 69 | 20 | 29 |
| Industrial Engineer | 11% | 58 | 14 | 24 |
| Facilities | 5.3% | 27 | 9 | 12 |
| Skilled Trades | 3.5% | 18 | 4 | 5 |
| Environmental Health & Safety | 2.5% | 13 | 6 | 3 |

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

25 companies with 50 or more employees picked up ProMax in their job posts from April to August 2026. Among the new enterprise companies, Solar Turbines posted the most jobs naming it: 4.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [Weston & Sampson](https://sumble.com/orgs/weston-&-sampson) | 2 |
| Commercial | [Kodiak Gas Services](https://sumble.com/orgs/kodiak-gas-services) | 2 |
| Commercial | [Bantrel Co.](https://sumble.com/orgs/bantrel) | 2 |
| Commercial | [Barr Engineering Co.](https://sumble.com/orgs/barr-engineering) | 1 |
| Commercial | [E2 Consulting Engineers, LP](https://sumble.com/orgs/e2-consulting-engineers) | 1 |
| Enterprise | [Solar Turbines](https://sumble.com/orgs/solar-turbines) | 4 |
| Enterprise | [Bureau Veritas](https://sumble.com/orgs/bureau-veritas-group) | 2 |
| Enterprise | [Henkel](https://sumble.com/orgs/henkel) | 2 |
| Enterprise | [Cognizant](https://sumble.com/orgs/cognizant-technology-solutions) | 1 |
| Enterprise | [Reliance Industries Limited](https://sumble.com/orgs/reliance-industries) | 1 |

Companies that named ProMax 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 ProMax companies use?

Compared with companies of the same size, ProMax companies stand out for using Pipesim and CADWorx. Pro II is 101 times as common as usual, at 15%.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Pipesim | 56 | 16% | 0.14% | 115 times |
| CADWorx | 92 | 26% | 0.23% | 110 times |
| Pro II | 54 | 15% | 0.15% | 101 times |
| HYSYS | 186 | 52% | 0.54% | 97 times |
| Unisim | 56 | 16% | 0.17% | 95 times |
| AFT Fathom | 25 | 7% | 0.12% | 57 times |
| SmartPlant | 40 | 11% | 0.21% | 53 times |
| AutoPipe | 33 | 9.3% | 0.2% | 47 times |

Shares are out of the 356 companies whose job posts name ProMax, 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.