Netscout Systems Inc provides service assurance and cybersecurity solutions that rely on its deep packet inspection technology. The company has operated for over forty years and serves enterprises, service providers and government organizations worldwide. Its technology converts network traffic into usable metadata that helps customers monitor performance and detect threats. Netscout's offerings are delivered as hardware appliances, software only, virtual instances or as a service. The firm focuses on enabling visibility and protection for modern IP networks.

Netscout generates revenue primarily from the sale of its service assurance and cybersecurity products and related support services. The company offers a range of solutions including network performance management tools, application performance monitoring, visibility probes and packet flow systems, as well as DDoS protection and threat detection appliances. Customers can purchase these solutions as integrated hardware and software appliances, as software that runs on commercial off the shelf servers, in virtualized form or as a cloud based subscription. In addition to product sales, Netscout provides maintenance updates, technical support and professional services that are billed separately or as part of maintenance contracts. The firm sells through a direct sales force that engages customers in face to face or virtual meetings and also uses an indirect channel of value added resellers, distributors and system integrators. Revenue is recognized when products are delivered or when services are performed over the contract period.

Netscout holds a notable position in the competitive markets for service assurance and cybersecurity solutions. The company differentiates itself through its proprietary Adaptive Service Intelligence technology which extracts real time information from network traffic to enable immediate visibility and alerts. Many competitors offer point solutions that focus on either performance monitoring or security but Netscout combines both functions in a unified platform. In the service assurance arena the firm competes with established names such as Cisco Systems, Dynatrace, Datadog, ExtraHop, IBM, Infovista, Viavi, Gigamon, New Relic, Riverbed Technology, Splunk and SolarWinds. In the service provider sector rivals include Anritsu, Ericsson, EXFO, Huawei and Nokia. For cybersecurity the company faces opponents like Radware, Akamai, F5 Networks, A10 Networks, Fortinet, Fastly, Cloudflare and Corero Network Security. In the emerging network detection and response space Netscout contends with Darktrace, Vectra Networks, ExtraHop and Cisco. Netscout's advantages stem from its ability to monitor both data and control plane traffic, its scalability to handle growing volumes, and its flexible deployment options that allow customers to choose appliances, software or cloud based delivery. The firm also benefits from a long history of innovation and a large installed base that provides recurring maintenance revenue.

Netscout serves a diverse customer base that includes enterprises, telecommunications service providers and government agencies. Enterprise customers span industries such as financial services, technology, manufacturing, healthcare, utilities, education, transportation and retail. Service provider clients consist of mobile operators, wireline operators, cable companies, internet service providers and cloud providers. Government accounts cover federal, state and local administrations in the United States as well as similar entities abroad. The company has disclosed that during the fiscal year ended March 31 2023 one direct customer Verizon accounted for more than ten percent of total revenue. No other single customer represented more than ten percent of revenue in the most recent fiscal years. Netscout's solutions are used by Fortune 500 firms to protect critical applications and to maintain network performance. The firm also works with universities and research institutions that require high performance networking and security capabilities. Overall the customer base is global with a presence in North America, Europe, Asia and other regions.