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Arbor Networks is a Westford, Massachusetts-based cybersecurity company that provides network monitoring software and distributed denial-of-service protection solutions for enterprise networks and internet service providers. The organization utilizes artificial intelligence and machine learning technologies to defend digital infrastructure against botnets, computer worms, and router disabling attempts. Prior to its initial acquisition, the business generated more than $120 million in annual revenue and employed 275 people across its nationwide operations. The company's security software monitors internet traffic across more than 70 percent of the world's Tier-1 service providers. Arbor Networks was acquired by Tektronix Communications, a subsidiary of Danaher Corporation, in 2010 before ultimately being purchased by NetScout Systems as part of a $2.6 billion transaction in 2015. The enterprise was founded in 2000 by Farnam Jahanian and Rob Malan as a University of Michigan spin-out.
Arbor Networks has raised $22.0M across 1 funding round.
Arbor Networks has raised $22.0M in total across 1 funding round.
Arbor Networks is a cybersecurity technology company specializing in network protection against DDoS attacks and advanced threats, providing detection, mitigation, and analytics solutions for enterprises, service providers, and carriers.[1][2][3] It offers products like Arbor Sightline for traffic visibility, Arbor Edge Defense for perimeter protection, and Arbor Cloud for hybrid on-premises and cloud-based DDoS mitigation, serving over 1,200 customers in 107 countries across sectors including telecommunications, finance, government, and utilities.[2][7] These solutions solve critical problems of network downtime and insider threats by combining micro-level network views with macro global intelligence from its ATLAS system, which aggregates 140 Tbps of traffic data from 330+ providers, enabling rapid threat response and forensics.[1][2][4]
Founded in 2000 and acquired by NetScout Systems in 2015, Arbor maintains strong growth through innovations like its 16Tbps global scrubbing capacity and integrations with partners such as Cisco and Juniper, positioning it as a leader used by over 90% of ISPs for network monitoring and security.[3][4][7]
Arbor Networks was founded in 2000 in Burlington, Massachusetts, initially focusing on network monitoring and traffic analysis tools like Peakflow DoS and Traffic, which used IP flow, SNMP, and BGP data to give ISPs scalable visibility for capacity planning and anomaly detection, including early DDoS threats.[3][4] The company emerged amid rising internet threats like worms and botnets, quickly gaining traction with enterprises via Peakflow X for behavioral threat detection and ISPs through pervasive network insights, earning recognition for securing complex networks.[1][4][6]
Pivotal moments included the 2009 launch of ATLAS, a collaborative global threat monitoring system with over 100 ISPs sharing DDoS data—still active today—and innovations like the 2014 Arbor Cloud service, expanding to 16 mitigation centers.[2][4] In 2015, acquisition by NetScout (via Danaher's purchase of related entities) integrated Arbor's tech into broader visibility platforms, enhancing its reach while preserving its core DDoS expertise.[3][4]
Arbor Networks rides the surge in sophisticated DDoS attacks and advanced persistent threats, amplified by IoT proliferation, 5G expansion, and ransomware targeting critical infrastructure like utilities and finance.[1][2][6] Its timing aligns with post-2010 internet growth, where volumetric attacks exceeded local capacities, making innovations like cloud-signaling and ATLAS essential for global-scale defense—ATLAS alone provides unmatched macro insights no single entity matches outside agencies like the NSA.[3][4]
Market forces favoring Arbor include regulatory mandates for infrastructure resilience (e.g., in telecom and public sectors) and the shift to hybrid cloud environments, where its ISP-agnostic, always-on solutions reduce downtime costs estimated in billions annually.[2][7] It influences the ecosystem by setting standards for threat sharing and behavioral detection, precursors to modern NDR tools, enabling operators to optimize peering, cut costs, and stay ahead of attackers.[4][6]
Arbor Networks, now powering NetScout's DDoS portfolio, is poised to dominate as AI-driven attacks and edge computing intensify threats, with expansions in automated protection like Arbor Insight and real-time intelligence.[4][7] Trends like zero-trust architectures and 6G will demand its scalable analytics, potentially growing ATLAS to cover more traffic amid rising state-sponsored attacks. Its influence may evolve toward integrated AI mitigation platforms, solidifying its role as the force multiplier for network teams securing an increasingly hostile digital landscape—much like its early innovations defined ISP resilience.[1][4]
Arbor Networks has raised $22.0M across 1 funding round. Most recently, it raised $22.0M Series B in August 2002.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Aug 1, 2002 | $22M Series B | — | Spark Capital, VSL Partners | Announced |
Arbor Networks has raised $22.0M in total across 1 funding round.
Arbor Networks's investors include Spark Capital, VSL Partners.
