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Companies using HYSYS

3,907 companies in our data use HYSYS, and 1,440 of them name it in job posts they wrote. Hiring for it is steady, with 1,775 job posts naming it from October 2025 to August 2026. Process engineering teams are its most common home.

Data as of November 9, 2026 · Markdown version

Which companies name HYSYS in the most job posts?

The companies with the most job posts naming HYSYS are Wood (549), ExxonMobil (315) and Worley (308). Four of these five companies are in Professional Services.
Company Posts People Recent job post
Wood Professional Services · first seen Sep 2022 549 63 "Proficient in Process Simulation software’s such as HYSYS, Flare System Analyzer, PipeNet, Pipesim, OLGA etc."Senior Process Engineer - Expressions of Interest, Nov 6, 2026
ExxonMobil Utilities · first seen Aug 2022 315 33 "Engineering Applications such as IPM (GAP, PROSPER, Resolve), OFM and Hysys"Bangalore Career Fair 21 & 22 November - Production Engineer (Oil & Gas), Oct 21, 2026
Worley Professional Services · first seen Sep 2022 308 63 "Process modelling using the relevant standard simulation packages HYSYS, ASPEN, METSIM etc."Senior Process Engineer, Oct 31, 2026
Burns & McDonnell Professional Services · first seen Jul 2022 282 6 "…Hysys and/or Aspen, HTRI ."Staff Process Engineer - Consumer & Life Solutions (Kansas City), Nov 7, 2026
Hargrove Engineers & Constructors Professional Services · first seen Sep 2022 269 2 "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
Showing 1 to 5 of 1,440 companies with job posts Sign up to see all companies using HYSYS ›

What else do we know about HYSYS?

Is hiring for HYSYS growing?

HYSYS holds a steady place in hiring. 0.93 in every 10,000 job posts named it from June to August 2026, against 0.91 from March to May.
Share of job posts naming HYSYS by month, October 2025 to August 2026, in job posts in every 10,000 Moves from 0.86 in October 2025 to 0.84 in August 2026, in job posts in every 10,000. 1.2 0.93 0.62 0.31 0 0.84 Oct '25 Nov Dec Jan '26 Feb Mar Apr May Jun Jul Aug
Show the data
MonthJob posts naming HYSYSAll job postsPer 10,000
Oct 20251221,413,6730.86
Nov 20251691,822,1190.93
Dec 20251331,236,1031.1
Jan 20261611,828,0020.88
Feb 20261771,856,6470.95
Mar 20261551,850,7110.84
Apr 20261861,728,8861.1
May 20261531,821,5090.84
Jun 20261791,909,4960.94
Jul 20261861,815,1801.0
Aug 20261541,835,6980.84

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

48 companies named HYSYS in a job post for the first time from June to August 2026, against 64 from March to May. The 48 from June to August are 3.3% of all 1,440 companies whose job posts name it.
March to May 2026 64
June to August 2026 48
October 2025 to August 2026 169

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 HYSYS?

1,440 companies name HYSYS in their own job posts. The other 2,467 show up because employees list it on their profiles. 354 show up in both job posts and employees' profiles.
How we know Companies Share
Job posts name HYSYS
1,440 37%
Employees' profiles list HYSYS
2,467 63%

3,907 companies. Each is counted once, under the strongest evidence we have for it.

What size are the companies that use HYSYS?

Companies with 50 to 999 employees are the largest group of HYSYS users, at 43%. 780 of its companies have fewer than 50 employees.

Share of its companies Typical tech page

ShareTypical
Under 50 employees
20% 22%
50 to 999
43% 38%
1,000 to 5,000
20% 17%
Over 5,000
17% 23%

Where are HYSYS companies based?

The United States has the most HYSYS companies (25%), but Indonesia stands out: 6.8% of them, against 0.64% on the typical tech page. Canada is second, at 7.3%.
ShareTypical
United States
25% 43%
Canada
7.3% 3.6%
Indonesia
6.8% 0.64%
United Kingdom
5.7% 6.4%
India
5.5% 6.9%
France
5.2% 4.6%

Companies in 98 countries and territories. Shares are of companies with a known headquarters country.

Show the data
CountryCompaniesShareTypical tech page
United States90025%43%
Canada2687.3%3.6%
Indonesia2506.8%0.64%
United Kingdom2095.7%6.4%
India2015.5%6.9%
France1925.2%4.6%

Which teams work with HYSYS?

Process engineering teams are the most common home for HYSYS, at 89 companies, followed by process and engineering. Operations teams come fourth, at 28 companies.
Team Companies
Process engineering
89
Process
45
Engineering
41
Operations
28
Process design
11
Technical services
9

What else do HYSYS companies use?

Compared with companies of the same size, HYSYS companies stand out for using Pro II and Unisim. Next is Pipesim: 12% of these companies use it, against 0.13% of similar ones.

Share of the 1,096 HYSYS companies counted here whose job posts also name the tool Typical for companies the same size

Tool Also name it Typical Times as common
Pro II 187 companies
17% 0.14% 122x
Unisim 191 companies
17% 0.15% 113x
Pipesim 136 companies
12% 0.13% 98x
ProMax 186 companies
17% 0.17% 97x
Tool Also name it Typical Times as common
Aspen Plus 390 companies
36% 0.42% 84x
CADWorx 192 companies
18% 0.22% 79x
SmartPlant 130 companies
12% 0.2% 60x
SP3D 145 companies
13% 0.23% 58x

Which companies started naming HYSYS in job posts recently?

53 companies with 50 or more employees picked up HYSYS in their job posts from April to August 2026. Among the new enterprise companies, Arkema posted the most jobs naming it: 4.
Commercial 50 to 999 employees · 32 new
Company Posts
X-energy 3
Crescent Energy 3
KBC A Yokogawa Company 3
WOG Technologies Limited 3
Koch Ag & Energy Solutions, LLC 2
Mid-market 1,000 to 5,000 employees · 13 new
Company Posts
UPM 4
Sener 4
EOG Resources 4
Williams 2
BWXT 2
Enterprise over 5,000 employees · 8 new
Company Posts
Arkema 4
Wipro 1
Coca-Cola FEMSA 1
RGE 1
Georgia-Pacific LLC 1

Companies that named HYSYS 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 HYSYS most?

Engineer is the most common role, in 27% of job posts naming HYSYS. Industrial Engineer is second, at 15%.
Role Share Posts
Engineer
27% 487
Industrial Engineer
15% 269
Chemical Engineer
14% 242
Skilled Trades
2.9% 51
Safety Engineer
2.6% 46
Mechanical Engineer
2.4% 43
Show the data
RoleShareOct 2025 to Aug 2026Mar to May 2026Jun to Aug 2026
Engineer27%487139117
Industrial Engineer15%2696879
Chemical Engineer14%2427085
Skilled Trades2.9%511211
Safety Engineer2.6%461415
Mechanical Engineer2.4%431113
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.