- Revenue
- $146.1M
- Customers
- 130
- Year founded
- 2009
- Funding
- $344.3M
- Team size
- 879
- Growth
- 46.09%
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.
Filters
Sorting: Highest -> Lowest
Top API Security Tools Companies
Showing 10 of 24 companies ranked by annual revenue.
2
Contrast Security
Los Altos, California, United States
Contrast Security is the only Application and API Security platform purpose-built to detect and stop live application-layer attacks. It delivers real-time and always-on application security inside applications and APIs.
- Revenue
- $91.7M
- Customers
- -
- Year founded
- 2014
- Funding
- $245M
- Team size
- 240
- Growth
- -
3
Salt Security
Palo Alto, California, United States
Salt detects and prevents zero-day API attacks with the power of AI. Deploys in minutes
- Revenue
- $75M
- Customers
- -
- Year founded
- 2016
- Funding
- $270M
- Team size
- 201
- Growth
- 54.64%
- Revenue
- $14.8M
- Customers
- -
- Year founded
- 2022
- Funding
- -
- Team size
- 4
- Growth
- -
5
Gravitee
Denver, Colorado, United States
Gravitee.io is an end-to-end solution for both synchronous and asynchronous API lifecycle management, built on an event-native API Gateway with support for REST, SOAP, Websockets, Webhooks, Kafka, MQTT, and more. Because of its breadth of capabilities and unique support for streaming data, Gravitee enables developers and business users all around the world to build, manage, and secure all their APIs in one place.
- Revenue
- $13.2M
- Customers
- -
- Year founded
- 2016
- Funding
- -
- Team size
- 120
- Growth
- -
- Revenue
- $10.3M
- Customers
- 120
- Year founded
- -
- Funding
- -
- Team size
- 36
- Growth
- 55.9%
- Revenue
- $5.9M
- Customers
- -
- Year founded
- 2020
- Funding
- $14.5M
- Team size
- 55
- Growth
- 44.71%
8
BOS Framework
Nashville, Tennessee, United States
Your seamless transition to microservices and security.
- Revenue
- $5.5M
- Customers
- -
- Year founded
- 2018
- Funding
- $2M
- Team size
- 25
- Growth
- 35.03%
- Revenue
- $5.4M
- Customers
- -
- Year founded
- 2018
- Funding
- $14.9M
- Team size
- 40
- Growth
- 35.08%
10
Apisec.ai
San Francisco, California, United States
Apisec.ai is an enterprise-class API security management platform that delivers instant and continuous API security coverage and compliance
- Revenue
- $5.4M
- Customers
- -
- Year founded
- 2018
- Funding
- $2M
- Team size
- 47
- Growth
- 59.6%
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.