S4E.io
Track on RadarProvides automated vulnerability scanning for web apps and digital assets
- Total raised
- $500K
- Employees
- 29
- Founded
- 2021
- Momentum
- 26
Stalling
Data updated July 2026
About
About S4E.io
At a glance
S4E.io is a cybersecurity company specializing in Attack Surface, founded in 2021 and headquartered in Ankara, Turkey. It has raised $500K in total funding, employs about 29 people, and is privately held.
S4E is a cybersecurity company founded in 2021 that provides vulnerability scanning and detection solutions for individuals and businesses. The company operates a platform that performs automated security scans to identify vulnerabilities in web applications, systems, and digital assets. Their service includes scanners for detecting SQL injection vulnerabilities, CVE-specific threats, and other security weaknesses across domains, subdomains, and IP addresses. The platform offers both single scans and continuous monitoring capabilities, with scan intervals ranging from days to weeks depending on the vulnerability type. Users can scan their digital assets to identify critical, high, and medium-level security issues. The company has processed over 2 million scans globally and serves more than 30,000 users worldwide as of 2025. S4E's approach focuses on making cybersecurity accessible and understandable for users regardless of technical expertise or budget constraints. The company received recognition from Google in 2022 for identifying a security vulnerability in Google Chrome and secured its first investment in 2024. Their scanning tools cover various vulnerability types including SQL injection, unauthorized access, and known CVEs affecting popular software systems and content management platforms. The company operates with a team that includes security researchers, developers, and operations staff. Their platform is available through a subscription model with trial options, targeting asset owners who need to protect their web applications and infrastructure from common security threats.
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FAQ
Frequently asked questions about S4E.io
When was S4E.io founded?▾
S4E.io was founded in 2021.
Where is S4E.io headquartered?▾
S4E.io is headquartered in Ankara, Turkey.
How much funding has S4E.io raised?▾
S4E.io has raised a total of $500K in total funding.
Is S4E.io public or private?▾
S4E.io is a privately-held company.
How many employees does S4E.io have?▾
S4E.io has approximately 29 employees.
What does S4E.io do?▾
S4E is a cybersecurity company founded in 2021 that provides vulnerability scanning and detection solutions for individuals and businesses. The company operates a platform that performs automated security scans to identify vulnerabilities in web applications, systems, and digital assets. Their servi…