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Top 24 API Security Tools SaaS Companies in May 2026

As of May 2026, there are 24 SaaS companies in API Security Tools. They have combined revenues of $394.6M and employ 1.9K people. They have raised $899.6M and serve 150.3K customers combined.

API Security Tools are designed to protect application programming interfaces (APIs) from various security threats. These tools enable organizations to discover, manage, and secure their APIs throughout their lifecycle, ensuring that the data exchanged is confidential and integrity is maintained. Common features include authentication and authorization management, threat detection, and monitoring of API usage patterns to identify vulnerabilities and anomalies. Typical use cases for API security tools include protecting sensitive data transmission, preventing unauthorized access, and ensuring compliance with security standards. Users range from IT security teams and application developers to compliance officers who need to oversee and enforce security policies. These stakeholders typically rely on such tools to streamline security processes, enhance visibility, and respond effectively to potential security incidents.

Companies
24
Revenue
$394.6M
Funding
$899.6M
Employees
1.9K

Filters

Sorting: Highest -> Lowest

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Revenue
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Funding (Locked)Growth (Locked)Team-Size (Locked)

Top API Security Tools Companies

Showing 10 of 5 companies ranked by annual revenue.

1
Escape

San Francisco, California, United States

Escape is the only DAST that works with your modern stack and tests business logic instead of missing headers. It fits right into your modern stack, supporting modern web frameworks, APIs, CI/CD, and Wiz without hassle. With Escape, you can: 1. Document all your APIs & Web Apps in minutes and enrich your inventory with seamless integrations. 2. Discover vulnerabilities even at a business logic level with our proprietary AI-powered algorithm. 3. Remediate issues efficiently with code snippets tailored to each framework

Revenue
$4.4M
Customers
-
Year founded
-
Funding
-
Team size
40
Growth
-
2
Ubiq Security

San Diego, California, United States

Simplifying encryption for developers through APIs.

Revenue
$3M
Customers
-
Year founded
2019
Funding
$6.4M
Team size
23
Growth
11.32%
3
Polaris Infosec

Ho Chi Minh City, Vietnam

Web Application & API Protection (WAAP) using Artificial Intelligence (AI) to actively detect and deter cyber attacks on your business.

Revenue
$2.6M
Customers
-
Year founded
2019
Funding
$500K
Team size
11
Growth
-
4
ProtectOnce

San Francisco, California, United States

We’re bringing back sanity to Data & API Security! A whole new way to understand and secure your most important assets – APIs & the Data they carry. Say goodbye to silos and say hello to ProtectOnce, the Data First API Security Platform.

Revenue
$2M
Customers
-
Year founded
2021
Funding
-
Team size
18
Growth
-
5
42Crunch

Dublin, Ireland

Developer of application programming interface (API) security platform. The company's enterprise-grade, fully fledged end-to-end API security platform offers confidentiality, integrity, availability, automatic generation of the security configuration for API orchestrations, management of API Keys, passwords and other sensitive data and protection of API Infrastructure, enabling clients to secure their API-based applications.

Revenue
$1.2M
Customers
150K
Year founded
2015
Funding
-
Team size
45
Growth
-

Inclusion Criteria

- Tools must provide API discovery and inventory capabilities. - Must include methods for threat detection and response. - Should offer the ability to manage authentication and authorization mechanisms. - Must support monitoring and auditing of API activity. - Not just focused on vulnerability scanning; must also include remediation guidance and risk prioritization. - Should integrate with existing security frameworks and tools within an organization. - Must facilitate compliance with relevant security standards and regulations.