9,646 companies in our data use OpenFOAM, and 1,456 of them name it in job posts they wrote. Hiring for it is growing, with 1,192 job posts naming it from October 2025 to August 2026. Mechanical Engineer roles mention it most.
Which companies name OpenFOAM in the most job posts?
Among the companies with the most job posts naming OpenFOAM are WSP (55), Framatome (51) and AECOM (50). Of the five companies in the table, Framatome has the most employees who list it on their profiles: 46.
CompanyPostsPeopleRecent job post
WSPProfessional Services · first seen Feb 20235522
"Demonstrated experience in understanding and using CFD analysis software (FloEFD, STAR CCM+, Fluent, FDS, OpenFOAM, 6SigmaRoom)"CFD Analyst (Mission Critical/Data Center), Sep 12, 2026
FramatomeUtilities · first seen Oct 20235146
"Connaissance d’un code CFD acquise lors d’un projet interne ou d’un cours dédié : STAR-CCM+, Fluent, OpenFOAM ou autre ;"Internship - CFD calculation engineer (star-ccm+) - CFD modeling of a mechanical exciter (m/f), Oct 22, 2026
AECOMProfessional Services · first seen Apr 20235015
"Proficiency with at least one data-center or general-purpose CFD platform, such as Cadence 6SigmaDCX, Ansys Fluent, Ansys CFX, or OpenFOAM, and the ability to learn and apply project-required tools."Principal Mechanical Engineer (CFD) - Data Centers, Nov 1, 2026
Oak Ridge National LaboratoryPublic Administration · first seen Aug 20224216
"Computational or process modeling using tools such as Python, MATLAB, Aspen, COMSOL, Fluent, or OpenFOAM"Postdoctoral Research Associate - Gas Dynamics, Fluid Flow, and Mass Transfer, Sep 22, 2026
Ford Motor CompanyManufacturing · first seen Nov 20224029
"Experience with industry-standard CFD software such as COMSOL, OpenFOAM, STAR-CCM+, or similar."Simulation Research Engineer, Apr 1, 2026
Hiring for OpenFOAM is growing. 0.73 in every 10,000 job posts named it from June to August 2026, against 0.58 from March to May. August 2026 was its highest month since October 2025, at 0.79.
Show the data
Month
Job posts naming OpenFOAM
All job posts
Per 10,000
Oct 2025
93
1,413,673
0.66
Nov 2025
104
1,822,119
0.57
Dec 2025
84
1,236,103
0.68
Jan 2026
95
1,828,002
0.52
Feb 2026
97
1,856,647
0.52
Mar 2026
95
1,850,711
0.51
Apr 2026
105
1,728,886
0.61
May 2026
112
1,821,509
0.61
Jun 2026
139
1,909,496
0.73
Jul 2026
123
1,815,180
0.68
Aug 2026
145
1,835,698
0.79
How many companies named OpenFOAM in a job post for the first time in recent months?
From June to August 2026, 119 companies posted their first job naming OpenFOAM; 84 did from March to May. Of the 1,456 companies whose job posts name it, 8.2% first named it from June to August.
March to May 202684
June to August 2026119
October 2025 to August 2026325
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 OpenFOAM?
Most of these companies come from employees' profiles: 85% have no job post naming OpenFOAM. 1,456 name it in their own job posts.
How we knowCompaniesShare
Job posts name OpenFOAM
1,45615%
Employees' profiles list OpenFOAM
8,19085%
9,646 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use OpenFOAM?
By size, the biggest group of OpenFOAM users is companies with 50 to 999 employees, at 43%. 2,360 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
24%22%
50 to 999
43%38%
1,000 to 5,000
19%17%
Over 5,000
14%23%
Where are OpenFOAM companies based?
Beyond the United States (21%), OpenFOAM is unusually common in Italy, at 5.8% of its companies. Its companies are based in 111 countries and territories.
ShareTypical
United States
21%43%
Germany
12%4.4%
France
7.7%4.6%
United Kingdom
6.7%6.4%
India
6.4%6.9%
Italy
5.8%1.5%
Companies in 111 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
1,986
21%
43%
Germany
1,135
12%
4.4%
France
719
7.7%
4.6%
United Kingdom
622
6.7%
6.4%
India
595
6.4%
6.9%
Italy
538
5.8%
1.5%
Which teams work with OpenFOAM?
Job posts most often place OpenFOAM with CFD, R&D and aerodynamics teams. Next are engineering and simulation teams, at 13 and 9 companies.
TeamCompanies
CFD
29
R&D
26
Aerodynamics
16
Engineering
13
Simulation
9
Modeling & simulation
6
What else do OpenFOAM companies use?
ANSYS Fluent, STAR-CCM+ and Modelica show up far more often at OpenFOAM companies than at companies of the same size. MCNP comes fourth, 45 times as common as usual, at 6%.
Share of the 1,034 OpenFOAM companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming OpenFOAM in job posts recently?
From April to August 2026, 105 companies with 50 or more employees posted their first job naming OpenFOAM: 50 commercial, 23 mid-market and 32 enterprise. Another 6 were AI-native companies, which we list separately.
Companies that named OpenFOAM 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 OpenFOAM most?
OpenFOAM shows up across many roles. The top one, Mechanical Engineer, has 26% of the job posts. Researcher is second, at 6%.
RoleSharePosts
Mechanical Engineer
26%305
Researcher
6%71
Engineer
5.4%64
Skilled Trades
4.9%59
AI Engineer
3.3%39
Software Engineer
2.7%32
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Mechanical Engineer
26%
305
67
98
Researcher
6%
71
16
27
Engineer
5.4%
64
19
17
Skilled Trades
4.9%
59
14
14
AI Engineer
3.3%
39
9
20
Software Engineer
2.7%
32
4
6
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.
