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Computer and Network Security Companies Using C#

428 companies in Computer and Network Security are hiring C# talent, with 2,594 open roles.

428
Companies
2,594
Open Roles

C# is Microsoft's primary language for building enterprise applications, security tooling, and backend services — making it a strong indicator that a company is running or building on a Windows-centric or Azure-native stack. In Computer and Network Security, C# hiring points to teams developing proprietary threat detection platforms, endpoint agents, or security automation workflows. Companies at this stage are typically evaluating cloud infrastructure, identity management, and DevSecOps tooling to support their build.

Buying Signal

When a security company posts C# roles, they're usually mid-build on a product or platform — which means they're actively buying supporting infrastructure: cloud hosting, CI/CD tooling, security testing platforms, and data storage. With 59 Regional Sales Manager roles appearing alongside engineering hires, these companies are also scaling go-to-market, making them buyers of CRM, sales intelligence, and revenue enablement tools. SDRs selling cloud security, DevOps platforms, or B2B SaaS infrastructure should be prioritizing these accounts now.

Top Companies50 shown

CompanyIndustryHQ LocationSizeJobsLast SeenLinks
CrowdStrike
crowdstrike.com
 Computer and Network Security United States 5,001+ 213 6w ago
Check Point Software
checkpoint.com
 Computer and Network Security Redwood City, United States 5,001+ 97 6w ago
Zscaler
zscaler.com
 Computer and Network Security San Jose, United States 5,001+ 96 6w ago
W
Whale Communications
 Computer and Network Security Tel-Aviv, Germany 10,001+ 73 6w ago
Cloudflare
cloudflare.com
 Computer and Network Security San Francisco, United States 1,001–5,000 214 6w ago
Netskope
netskope.com
 Computer and Network Security Santa Clara, United States 1,001–5,000 129 6w ago
SentinelOne
sentinelone.com
 Computer and Network Security Mountain View, United States 1,001–5,000 33 6w ago
Darktrace
darktrace.com
 Computer and Network Security Cambridge, United Kingdom 1,001–5,000 25 6w ago
Infoblox
infoblox.com
 Computer and Network Security Santa Clara, United States 1,001–5,000 25 6w ago
Proofpoint
proofpoint.com
 Computer and Network Security Mountain View, United States 1,001–5,000 25 6w ago
Tanium
tanium.com
 Computer and Network Security Kirkland, United States 1,001–5,000 25 6w ago
Qualys
qualys.com
 Computer and Network Security Foster City, United States 1,001–5,000 22 6w ago
Cato Networks
catonetworks.com
 Computer and Network Security Tel-Aviv, Israel 1,001–5,000 21 6w ago
secunet Security Networks AG
secunet.com
 Computer and Network Security Essen, Germany 1,001–5,000 18 6w ago
Nord Security
nordsecurity.com
 Computer and Network Security 1,001–5,000 12 3mo ago
Snyk
snyk.io
 Computer and Network Security Boston, United States 1,001–5,000 12 6w ago
Barracuda
barracuda.com
 Computer and Network Security Campbell, United States 1,001–5,000 11 6w ago
Tenable
tenable.com
 Computer and Network Security Columbia, United States 1,001–5,000 11 6w ago
Rapid7
r-7.co
 Computer and Network Security Boston, United States 1,001–5,000 10 6w ago
1Password
1password.com
 Computer and Network Security Toronto, Canada 1,001–5,000 9 6w ago
Arctic Wolf
arcticwolf.com
 Computer and Network Security Eden Prairie, United States 1,001–5,000 9 6w ago
DigiCert
digicert.com
 Computer and Network Security Lehi, United States 1,001–5,000 9 6w ago
SonicWall
sonicwall.com
 Computer and Network Security Milpitas, United States 1,001–5,000 9 6w ago
Wiz
wiz.io
 Computer and Network Security New York, United States 501–1,000 37 6w ago
Telos Corporation
telos.com
 Computer and Network Security Ashburn, United States 501–1,000 35 2mo ago
OPSWAT
opswat.com
 Computer and Network Security Tampa, United States 501–1,000 33 6w ago
Recorded Future
recordedfuture.com
 Computer and Network Security Somerville, United States 501–1,000 27 6w ago
Illumio
illumio.com
 Computer and Network Security Sunnyvale, United States 501–1,000 16 6w ago
NetSPI
netspi.com
 Computer and Network Security Minneapolis, United States 501–1,000 15 6w ago
Sysdig
sysdig.com
 Computer and Network Security San Francisco, United States 501–1,000 14 1mo ago
Checkmarx
checkmarx.com
 Computer and Network Security Paramus, United States 501–1,000 13 6w ago
Group-IB
group-ib.com
 Computer and Network Security Singapore, Singapore 501–1,000 12 6w ago
Silverfort
silverfort.com
 Computer and Network Security Plano, United States 501–1,000 12 6w ago
Armis
armis.com
 Computer and Network Security San Francisco, United States 501–1,000 11 6w ago
Semperis
semperis.com
 Computer and Network Security Hoboken, United States 501–1,000 9 6w ago
Protegrity
protegrity.com
 Computer and Network Security Stamford, United States 201–500 26 6w ago
Cynet Security
cynet.com
 Computer and Network Security Boston, United States 201–500 11 6w ago
Upwind Security
upwind.io
 Computer and Network Security San Francisco, United States 201–500 11 6w ago
Torq
torq.io
 Computer and Network Security New York, United States 201–500 10 6w ago
Menlo Security Inc.
menlosecurity.com
 Computer and Network Security Mountain View, United States 201–500 9 6w ago
Safe Security
safe.security
 Computer and Network Security Palo Alto, United States 51–200 22 7w ago
Rublon
rublon.com
 Computer and Network Security Zielona Góra, Poland 51–200 17 6mo ago
Zetier
zetier.com
 Computer and Network Security United States 51–200 15 7w ago
Zenity
zenity.io
 Computer and Network Security Tel-Aviv, Israel 51–200 11 6w ago
Wallarm: API Security Leader
wallarm.com
 Computer and Network Security San Francisco, United States 51–200 10 7w ago
IOActive, Inc.
ioactive.com
 Computer and Network Security Seattle, United States 51–200 9 6mo ago
Kudu Dynamics LLC
kududyn.com
 Computer and Network Security Chantilly, United States 51–200 9 6w ago
Push Security
pushsecurity.com
 Computer and Network Security Boston, United States 51–200 9 1mo ago
Fortinet
fortinet.com
 Computer and Network Security Sunnyvale, United States 10,001+ 113 6w ago
Palo Alto Networks
paloaltonetworks.com
 Computer and Network Security Santa Clara, United States 10,001+ 109 6w ago

428 companies use C#. Want the full list?

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▲Market Signal

428 security companies hiring C# talent across 2,594 open roles signals a market actively building — not maintaining. That ratio of roughly 6 roles per company suggests aggressive headcount expansion, not backfill hiring.

⦿Stack Intelligence

C# almost always appears alongside .NET, Azure, and SQL Server in security company stacks, indicating a mature, Microsoft-aligned architecture. This combination points to enterprise-grade build environments that require Azure DevOps, cloud cost management, and SQL-compatible data tooling. For vendors in those categories, the technology co-occurrence is a reliable signal for account prioritization.

C# Hiring Landscape

Where and how companies hire C# talent

By Country

United States
209
India
65
Israel
55
United Kingdom
61
Germany
43
Canada
28
France
26
Spain
20

Top Roles

Regional Sales Manager59Threat Analyst, Machine Learning (Remote, East/Central)34Senior Software Engineer30Software Engineer21Corporate Account Executive17Strategic Sales Manager17Enterprise Account Executive16Account Executive13Security Researcher12Account Director11Solution Architect, Secure Access Service Edge11Customer Success Engineer10

Related Technologies

.NETMicrosoft AzureSQL Server

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Frequently Asked Questions

What is C#?

C# is the core programming language behind most Microsoft-ecosystem enterprise software, used to build everything from SaaS applications to security agents. In the security industry, it typically powers proprietary platforms that need to integrate tightly with Windows environments. Hiring for it signals active product development, not just maintenance.

Why should sales teams track C# hiring?

Tracking C# hiring in security lets sales teams catch companies mid-build, before vendor decisions are locked in. A company posting 10+ C# roles in a quarter is likely evaluating cloud, testing, and infrastructure vendors within that same window.

Who should be selling to companies that use C#?

Vendors best positioned to sell into these accounts include cloud infrastructure providers (especially Azure-adjacent), DevSecOps and CI/CD platforms, B2B data and identity security tools, and CRM or sales enablement software targeting scaling security firms.