- Founded
- 1996-01-01 in Seattle, Washington, USA
- Headquarters
- Seattle, Washington, USA
F5, Inc. is a publicly traded technology company that provides application delivery and security solutions for hybrid multicloud environments. Founded in 1996 in Seattle, Washington, F5 pioneered the application delivery controller market and has evolved into a software- and SaaS-first leader, securing and accelerating applications across data centers, cloud regions, and edge locations. The company’s three primary product families – BIG-IP, NGINX, and F5 Distributed Cloud Services – deliver high-performance load balancing, API security, bot management, DDoS protection, and AI-specific security controls. F5’s platform is trusted by 85% of the Fortune 500, and its 2025 acquisition of CalypsoAI added offensive and defensive AI security capabilities. Under chair, president and CEO François Locoh-Donou, the company has shifted from hardware-centric to software- and SaaS-centric delivery, while maintaining its position as a consolidator of application services across an average of 19 environments per customer. F5 is headquartered in Seattle, Washington, and reported Q2 2026 revenue of $812 million.
Detailed Review
History and Founding
F5 was founded on February 26, 1996, in Seattle, Washington, by a group including Jeff Pancottine and others. The company initially focused on application delivery controllers and grew rapidly during the dot-com boom. Over time, it expanded through acquisitions such as NGINX (2019), Shape Security (2019), and CalypsoAI (2025), evolving from a hardware-centric ADC vendor into a software- and SaaS-first platform provider.
Business Model
F5 generates revenue through a mix of hardware appliances, software licenses, SaaS subscriptions, and professional services. The company employs a channel-first go-to-market strategy, relying on resellers and partners to attach API security and AI delivery services to hardware refresh cycles. Its platform is designed to operate consistently across on-premises, cloud, and edge environments, addressing the complexity customers face managing multiple infrastructures.
Core Products and Platforms
F5's product portfolio includes BIG-IP, the flagship ADC for high-performance traffic management and security; NGINX, a cloud-native delivery and security solution for Kubernetes and microservices; and F5 Distributed Cloud Services, a unified SaaS platform for application security, networking, and edge compute. The F5 Application Delivery and Security Platform (ADSP) converges ADC and security capabilities to support AI workloads, and the F5 AI Security Platform (including Guardrails and Red Teaming) protects AI models and data throughout the lifecycle.
Market Position and Competitors
F5 competes with Akamai, Cloudflare, and Citrix (Cloud Software Group), as well as native services from hyperscalers. Its key differentiator is the ability to operate consistently across an average of 19 environments per customer, a complexity that many enterprises seek to simplify. The company is trusted by 85% of the Fortune 500 and holds a strong position in the ADC and application security markets.
Recent Developments
F5 reported Q2 2026 revenue of $812 million, exceeding expectations. The company has invested heavily in AI security, both organically and through the CalypsoAI acquisition, and its 2026 State of Application Strategy Report highlights growing demand for unified application delivery and security across multicloud environments.
Key Products
F5 BIG-IP
High-performance application delivery and security services (ADC, WAF, DDoS, iRules) for physical, virtual, and cloud environments.
F5 NGINX
Cloud-native delivery and security for modern apps, Kubernetes, and APIs, including open-source and commercial versions.
F5 Distributed Cloud Services
SaaS-based platform for application security, networking, and edge compute across multicloud and edge locations.
F5 Application Delivery and Security Platform (ADSP)
Converged ADC and security platform supporting AI workloads, API security, and hybrid multicloud deployments.
F5 AI Security Platform
AI-specific security suite (Guardrails, Red Teaming) for protecting AI models, apps, agents, and data; includes capabilities from CalypsoAI acquisition.
F5 Shape Security
Acquired 2019; provides bot management and client-side protection, now integrated into F5's security portfolio.
Key Persons
- François Locoh-Donou
Chairman, President & CEO