F5, Inc. is a technology company founded in 1996 and headquartered in Seattle, Washington. It specializes in software-based solutions that manage and optimize Internet and network traffic, focusing on intelligent load balancing and application delivery technologies. F5 is publicly traded on NASDAQ under the symbol FFIV and serves a global customer base, including 48 of the Fortune 50 companies.

The company's flagship product, BIG-IP, is a load balancer that enhances application performance by intelligently routing network traffic. F5 also offers advanced application security solutions, including fraud prevention and API management, to protect against cyber threats. In recent years, F5 has expanded its offerings to include cloud-based services and comprehensive security solutions. The company has a dedicated research division, F5 Labs, which focuses on global threat intelligence and application threat analysis to help customers stay ahead of emerging threats.