9,039 companies in our data use Mimecast, and 2,314 of them name it in job posts they wrote. Hiring for it is steady, with 1,262 job posts naming it from October 2025 to August 2026. IT teams are its most common home.
Which companies name Mimecast in the most job posts?
The companies with the most job posts naming Mimecast are Atlas Technica (459), ECI (109) and Brennan (69). Of the five companies in the table, Atlas Technica has the most employees who list it on their profiles: 22.
CompanyPostsPeopleRecent job post
Atlas TechnicaProfessional Services · first seen Sep 202245922
"Experience with Mimecast or other mail security gateway solutions such as IronPort or Proofpoint"systems engineer, Nov 7, 2026
ECIScientific and Technical Services · first seen Sep 202210914
"Implement SPF, DKIM, DMARC and email security solutions (ProofPoint, Mimecast)."Senior Systems Escalation Engineer, Nov 4, 2026
BrennanProfessional Services · first seen Jun 20236918
"Mimecast and Check Point Harmony"Security Operations Engineer, Oct 27, 2026
Air IT GroupProfessional Services · first seen Oct 20226815
"Knowledge of Mimecast email security solutions."field engineer, Oct 22, 2026
Alvarez & MarsalProfessional Services · first seen Aug 2022512
"…VOIP connectivity troubleshooting, LAN connectivity troubleshooting, Mimecast, network printer support."IT Field Services Support, Oct 27, 2026
Mimecast's share of job posts is about the same as three months earlier: 0.63 in every 10,000 job posts from June to August 2026, against 0.66 from March to May. Its busiest month was November 2025, at 0.80.
Show the data
Month
Job posts naming Mimecast
All job posts
Per 10,000
Oct 2025
102
1,413,673
0.72
Nov 2025
145
1,822,119
0.80
Dec 2025
57
1,236,103
0.46
Jan 2026
124
1,828,002
0.68
Feb 2026
127
1,856,647
0.68
Mar 2026
118
1,850,711
0.64
Apr 2026
107
1,728,886
0.62
May 2026
130
1,821,509
0.71
Jun 2026
130
1,909,496
0.68
Jul 2026
107
1,815,180
0.59
Aug 2026
115
1,835,698
0.63
How many companies named Mimecast in a job post for the first time in recent months?
Mimecast showed up in job posts at 102 companies for the first time from June to August 2026, and 98 in the three months before. That brings the companies naming it for the first time since October 2025 to 375, through August 2026.
March to May 202698
June to August 2026102
October 2025 to August 2026375
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 Mimecast?
2,314 companies name Mimecast in their own job posts. The other 6,725 show up because employees list it on their profiles. 673 show up in both job posts and employees' profiles.
How we knowCompaniesShare
Job posts name Mimecast
2,31426%
Employees' profiles list Mimecast
6,72574%
9,039 companies. Each is counted once, under the strongest evidence we have for it.
What size are the companies that use Mimecast?
The largest group of Mimecast users is companies with 50 to 999 employees (53%), more than on the typical tech page. The second-largest group is companies with 1,000 to 5,000 employees, at 19%.
Share of its companies
Typical tech page
ShareTypical
Under 50 employees
16%22%
50 to 999
53%38%
1,000 to 5,000
19%17%
Over 5,000
12%23%
Where are Mimecast companies based?
Beyond the United States (47%), Mimecast is unusually common in South Africa, at 5% of its companies. Its companies are based in 102 countries and territories.
ShareTypical
United States
47%43%
United Kingdom
23%6.4%
Australia
6.1%2.2%
South Africa
5%0.47%
Canada
2.5%3.6%
India
2.3%6.9%
Companies in 102 countries and territories. Shares are of companies with a known headquarters country.
Show the data
Country
Companies
Share
Typical tech page
United States
4,053
47%
43%
United Kingdom
2,021
23%
6.4%
Australia
533
6.1%
2.2%
South Africa
433
5%
0.47%
Canada
214
2.5%
3.6%
India
203
2.3%
6.9%
Which teams work with Mimecast?
IT teams are by far the most common home for Mimecast, at 226 companies. Next come infrastructure teams (40 companies) and service desk teams (35).
TeamCompanies
IT
226
Infrastructure
40
Service desk
35
SOC
31
Technology
31
Cybersecurity
29
What else do Mimecast companies use?
Datto and Barracuda are the tools most closely tied to Mimecast. Next is KnowBe4: 7.2% of these companies use it, against 0.38% of similar ones.
Share of the 1,848 Mimecast companies counted here whose job posts also name the tool
Typical for companies the same size
Which companies started naming Mimecast in job posts recently?
125 companies with 50 or more employees started naming Mimecast in job posts between April and August 2026. 18 of them have more than 5,000 employees. NGL Energy Partners LP and SYNETIS lead the new commercial companies, with 5 job posts each from April to August.
Companies that named Mimecast 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 Mimecast most?
Mimecast shows up across many roles. The top one, IT Support, has 26% of the job posts. IT Support posts naming it numbered 86 from March to May 2026 and 92 from June to August.
RoleSharePosts
IT Support
26%334
Security Analyst
11%133
Security Engineer
8%101
Systems Engineer
7.9%100
Information Security Engineer
3.8%48
Infrastructure Engineer
2.9%37
Show the data
Role
Share
Oct 2025 to Aug 2026
Mar to May 2026
Jun to Aug 2026
IT Support
26%
334
86
92
Security Analyst
11%
133
35
37
Security Engineer
8%
101
26
33
Systems Engineer
7.9%
100
26
28
Information Security Engineer
3.8%
48
18
12
Infrastructure Engineer
2.9%
37
10
15
Which project themes come up in Mimecast job posts?
After broad digital transformation work, teams hiring for Mimecast most often mention Cloud Cost Optimization, in 90 job posts. After that comes Cloud Migration, with 83.
Project themeJob posts
Digital Transformation459
Cloud Cost Optimization90
Cloud Migration83
Security Infrastructure Modernization70
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.
