NetScout Systems Inc (NetScout) is a company specializing in enterprise network observability, carrier service assurance, cybersecurity, and Distributed Denial-of-Service (DDoS) protection solutions. product and service portfolio includes solutions for network observability, application performance management, unified communications, software-as-a-service and infrastructure performance management, application and desktop virtualization, and cybersecurity. Key offerings include nGeniusONE, ISNG, Omnis Insights, Omnis Cybersecurity solutions, and Arbor Edge Defense. NetScout serves enterprises, service providers, and government agencies, helping them optimize network performance, ensure application delivery, and protect against network attacks. The company also offers integration with third-party solutions to enhance application performance and service delivery.

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NetScout is focused on anticipating and creating solutions to meet emerging customer requirements by working closely with enterprise and service provider customers. The company invests significantly in research and development to enhance and expand its product offerings and capabilities. This includes integrating key capabilities from acquired product lines and developing an integrated platform to address combined service assurance and cybersecurity requirements. The company predominantly develops products internally, with some limited third-party contracting, and participates in industry standards bodies to gain early insights into network and application performance requirements. The R&D unit of NetScout is responsible for advancing technical innovation across the company's broad product portfolio. The unit focuses on understanding and addressing the near-term and longer-term requirements of global customers, leveraging strong technical and domain expertise within the organization. In FY2026, the company incurred expenses of US$159.4 million on its R&D efforts, which as a percentage of revenue stood at 19%.