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Forescout

Agentless discovery and security for networked devices

Raised to date

$163.4M

across 2 Form D filings

Investors
14
Last filed
Jun 29, 2026

About

Forescout is a cybersecurity company whose platform discovers, classifies and secures every connected asset on an enterprise network, including unmanaged devices. Its agentless approach spans IT, IoT, IoMT and OT environments and adds exposure management, network segmentation, zero trust access control and automated threat response. The company reports more than 3,200 customers worldwide, including one in five Fortune 500 companies, across financial services, healthcare, public sector, energy and utilities, oil and gas, and manufacturing. It is privately held, backed by Crosspoint Capital Partners and Advent International, and employs over 1,000 people.

Agentless, vendor-agnostic discovery of every IP-connected asset — including unmanaged IoT, IoMT and OT devices that agent-based tools miss — combined with automated containment and integrations across hundreds of existing security tools.

Funding

No target, first sold Jul 2022$162.9M soldJul 20222024
Now
  • EquityFiled Jun 29, 2026Form D/A
    $162.9M/ no target
  • EquityFiled Jun 29, 2026Form D
    $444K/ $444K

Product

Forescout Vistaro platform

Enterprise security platform

A cyber defense platform (renamed from the Forescout 4D Platform in June 2026) that continuously discovers, assesses, controls and governs every connected asset across IT, IoT, IoMT and OT environments, and automates containment and response.

  • Agentless discovery and classification of IP-connected managed and unmanaged devices
  • Continuous exposure management and risk prioritization
  • Network access control, dynamic segmentation and universal ZTNA

Built for

Large enterprises and government agencies with heterogeneous networks — financial services, healthcare, public sector, energy and utilities, oil and gas, and manufacturing

People on file