916 companies use FreeSurfer, based on their job posts and their employees' public profiles. 142 job posts named it from October 2025 to August 2026. Researcher roles mention it most.
Which companies name FreeSurfer in the most job posts?
Massachusetts General Hospital leads with 155 job posts naming FreeSurfer, followed by Washington University in St. Louis and Mass General Brigham. Three of these five companies are in Health Care and Social Assistance.
CompanyPostsPeopleRecent job post
Massachusetts General HospitalHealth Care and Social Assistance · first seen Jul 20221556
"Processing, QC and basic analysis of structural MRI data with FreeSurfer"Neuroimaging Clinical Research Coordinator, Aug 25, 2026
Washington University in St. LouisEducational Services · first seen Jul 2022844
"Training will be provided to gain the ability to perform brain volumetric analysis on patients using the FreeSurfer platform through CNDA."Clinical Research Study Assistant II - Radiology Oncology, Feb 5, 2026
Mass General BrighamHealth Care and Social Assistance · first seen May 2024612
"…connectivity methods including programming in MATLAB and Python, and familiarity with FreeSurfer, SPM, FSL, AFNI, CONN toolbox, and Connectome Workbench."Post-Doctoral Fellow, May 2, 2026
Stanford UniversityEducational Services · first seen Sep 2022475
"Desired experience with software packages for neuroimaging processing and statistics, such as FreeSurfer, SPM, FSL and R."Clinical Research Coordinator Associate, Oct 11, 2026
Brigham and Women's HospitalHealth Care and Social Assistance · first seen Sep 2022263
"Learn and apply neuroimaging methods to process and analyze structural, functional, and diffusion MRI data using tools such as MRtrix, FreeSurfer, and FSL."Research Assistant II, Neurosurgery, Sep 23, 2026
0.10 in every 10,000 job posts named FreeSurfer from June to August 2026, against 0.07 from March to May. These are small numbers of job posts, so a few companies can move them.
Show the data
Month
Job posts naming FreeSurfer
All job posts
Per 10,000
Oct 2025
12
1,413,673
0.08
Nov 2025
12
1,822,119
0.07
Dec 2025
5
1,236,103
0.04
Jan 2026
11
1,828,002
0.06
Feb 2026
11
1,856,647
0.06
Mar 2026
10
1,850,711
0.05
Apr 2026
12
1,728,886
0.07
May 2026
16
1,821,509
0.09
Jun 2026
11
1,909,496
0.06
Jul 2026
11
1,815,180
0.06
Aug 2026
31
1,835,698
0.17
How many companies named FreeSurfer in a job post for the first time in recent months?
In the three months to August 2026, 9 companies posted about FreeSurfer for the first time. From March to May, 6 did. From October 2025 to August 2026, 25 companies named it in a job post for the first time.
March to May 20266
June to August 20269
October 2025 to August 202625
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 FreeSurfer?
Of the 916 companies here, 644 are known from what employees list on their profiles. 104 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name FreeSurfer
27230%
Employees' profiles list FreeSurfer
64470%
916 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use FreeSurfer?
FreeSurfer leans toward large companies. 37% of its users are companies with more than 5,000 employees, against 23% on the typical tech page. 128 of its companies have fewer than 50 employees.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
14%22%
50 to 999
28%38%
1,000 to 5,000
21%17%
Over 5,000
37%23%
Where are FreeSurfer companies based?
More than half of FreeSurfer companies are in the United States (56%). The United Kingdom is second, at 6%.
ShareTypical
United States
56%43%
United Kingdom
6%6.4%
Canada
4.5%3.6%
Germany
4.5%4.4%
The Netherlands
3.4%2%
Spain
3.1%1.8%
Companies in 46 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
492
56%
43%
United Kingdom
53
6%
6.4%
Canada
40
4.5%
3.6%
Germany
40
4.5%
4.4%
The Netherlands
30
3.4%
2%
Spain
27
3.1%
1.8%
Which teams work with FreeSurfer?
FreeSurfer work is spread across teams. Research leads, at 5 companies.
TeamCompanies
Research
5
Lab
4
Martinos center for biomedical imaging
4
Neuroimaging core
4
Computational neuroimaging lab
3
Disease research center (ADRC)
3
What else do FreeSurfer companies use?
AFNI, Simoa and MaxQuant show up far more often at FreeSurfer companies than at companies of the same size. SigmaPlot is 36 times as common as usual, at 8.8%.
Share of the 159 FreeSurfer companies counted here whose job posts also name the tool
Typical for companies the same size
Companies that named FreeSurfer 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 FreeSurfer most?
Researcher is the most common role, in 37% of job posts naming FreeSurfer. Researcher posts naming it numbered 11 from March to May 2026 and 18 from June to August.
RoleSharePosts
Researcher
37%52
Research Assistant
13%19
Research Scientist
6.3%9
Radiologic Technologist
5.6%8
Data Analyst
3.5%5
Biomedical Engineer
2.8%4
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
Researcher
37%
52
11
18
Research Assistant
13%
19
6
6
Research Scientist
6.3%
9
4
3
Radiologic Technologist
5.6%
8
2
4
Data Analyst
3.5%
5
3
1
Biomedical Engineer
2.8%
4
0
2
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.
