3,436 companies use Pro II, based on their job posts and their employees' public profiles. From October 2025 to August 2026, 485 job posts named it. Engineer is the role that names it most often.
Which companies name Pro II in the most job posts?
Among the companies with the most job posts naming Pro II are Hargrove Engineers & Constructors (320), Wood (205) and Technip Energies (165). Of the five companies in the table, Technip Energies has the most employees who list it on their profiles: 164.
WoodProfessional Services · first seen Oct 202220570
"Knowledge of Process simulators: ASPEN HYSYS, PRO II"Process Engineer - Internship, Oct 28, 2026
Technip EnergiesProfessional Services · first seen Oct 2022165164
"HYSYS or Pro II, HTRI, Flarenet, Flaresim, Pipesim, Pipenet, Flowmaster."Senior Process Engineer, Oct 22, 2026
WorleyProfessional Services · first seen Sep 202211589
"Software Proficiency: Competent use of relevant software such as MS Office Suite / Hysys, FlareNET, Aspen Plus, PipeNET, Pro II, Unisim"Senior Process Engineer, Oct 24, 2026
Black & VeatchProfessional Services · first seen Sep 2022964
"Working knowledge of PRO II, Promax, Protreat, HYSYS and similar process simulation packages"Registered Process Staff Engineer, Oct 23, 2026
From March to May 2026, 0.21 in every 10,000 job posts named Pro II; from June to August, 0.27 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 Pro II
All job posts
Per 10,000
Oct 2025
31
1,413,673
0.22
Nov 2025
61
1,822,119
0.33
Dec 2025
52
1,236,103
0.42
Jan 2026
41
1,828,002
0.22
Feb 2026
36
1,856,647
0.19
Mar 2026
33
1,850,711
0.18
Apr 2026
42
1,728,886
0.24
May 2026
41
1,821,509
0.23
Jun 2026
54
1,909,496
0.28
Jul 2026
44
1,815,180
0.24
Aug 2026
50
1,835,698
0.27
How many companies named Pro II in a job post for the first time in recent months?
Pro II showed up in job posts at 13 companies for the first time from June to August 2026, and 12 in the three months before. From October 2025 to August 2026, 52 companies named it in a job post for the first time.
March to May 202612
June to August 202613
October 2025 to August 202652
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 Pro II?
Most of these companies come from employees' profiles: 88% have no job post naming Pro II. 165 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Pro II
40012%
Employees' profiles list Pro II
3,03688%
3,436 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Pro II?
42% of Pro II users are companies with 50 to 999 employees, the largest size group. 495 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
14%22%
50 to 999
42%38%
1,000 to 5,000
22%17%
Over 5,000
22%23%
Where are Pro II companies based?
The United States has the most Pro II companies (34%), but Italy stands out: 3.5% of them, against 1.5% on the typical tech page. France is second, at 7.1%.
ShareTypical
United States
34%43%
France
7.1%4.6%
United Kingdom
6.4%6.4%
Canada
4%3.6%
Germany
3.6%4.4%
Italy
3.5%1.5%
Companies in 97 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
1,120
34%
43%
France
234
7.1%
4.6%
United Kingdom
211
6.4%
6.4%
Canada
133
4%
3.6%
Germany
119
3.6%
4.4%
Italy
114
3.5%
1.5%
Which teams work with Pro II?
Job posts for Pro II point to process engineering teams far more than any other, at 31 companies. Process teams are second, at 15 companies, and engineering teams third, at 7.
TeamCompanies
Process engineering
31
Process
15
Engineering
7
Process design
5
Capital projects
3
Gas processing
3
What else do Pro II companies use?
PIPEPHASE and Unisim are the tools most closely tied to Pro II. Among the tools listed here, HYSYS is the most widely used, at 68% of Pro II companies.
Share of the 275 Pro II companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Pro II in job posts recently?
From April to August 2026, 15 companies with 50 or more employees posted their first job naming Pro II: 5 commercial, 6 mid-market and 4 enterprise. Reliance Industries Limited has the most job posts of the new enterprise companies, 3 from April to August.
Companies that named Pro II 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 Pro II most?
Engineer is the most common role, in 25% of job posts naming Pro II. The top four roles cover 59% of these job posts.
RoleSharePosts
Engineer
25%119
Chemical Engineer
17%82
Industrial Engineer
13%62
Mechanical Designer
4.3%21
Skilled Trades
4.3%21
Professor
2.3%11
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Engineer
25%
119
26
30
Chemical Engineer
17%
82
16
32
Industrial Engineer
13%
62
15
19
Mechanical Designer
4.3%
21
8
4
Skilled Trades
4.3%
21
7
6
Professor
2.3%
11
4
4
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.
