F5 builds application security and multicloud networking products and employs about 4,063 people worldwide. Over the most recent reporting period the company added 289 employees while 291 departed, resulting in a virtually steady net headcount. This balanced hiring and attrition pattern suggests a mature hiring cadence that aligns staffing levels with product and customer-support demands. The workforce spans engineering, customer-facing, and corporate functions that collectively support F5’s software, hardware, and cloud-based offerings.
Engineering is F5’s largest organization with roughly 1,566 employees, accounting for nearly two-fifths of all staff and underscoring the company’s focus on product development and security research. Sales and Support follow at 907 team members, reflecting the resources devoted to customer acquisition and post-sales assistance. Marketing and Product (411), Information Technology (338), Business Management (226), and Finance & Administration (184) round out the primary departments, while smaller groups such as Real Estate and Banking & Wealth Management provide specialized capabilities. An additional 427 employees are classified in "Other," highlighting a range of niche roles that keep operations running smoothly.
F5’s headquarters in Seattle hosts approximately 847 employees, making it the company’s single largest office. Additional West Coast hubs include the San Francisco Bay Area (141) and San Jose (109), while Spokane and Boston contribute 163 and 30 employees respectively to the U.S. footprint. Internationally, key engineering and support centers are located in Hyderabad and Bengaluru, India (92 and 57), Singapore (104), and Israel (47). A sizable "Other" category of 2,473 employees indicates a distributed workforce spread across smaller offices and remote locations, enabling F5 to serve customers in multiple regions around the globe.