What Egress Software does

Egress Software, founded in 2007 and headquartered in London, is a cloud-native email security provider that operates as a wholly-owned subsidiary of KnowBe4 following its 2024 acquisition. The company offers five integrated products: Defend (AI-powered inbound email security against phishing, ransomware, and BEC using behavioral AI and self-learning threat models), Prevent (real-time outbound data loss prevention integrated with Microsoft Outlook and Office 365), Protect (policy-based email encryption with FIPS 140-2 certification and 256-bit AES), Workspace (secure file sharing and collaboration with granular access controls and SSO), and Web Form (secure data submission forms with ISO 27001/9001 and Commercial Product Assurance certifications). The platform uses an adaptive security model combining contextual machine learning and neural networks to continuously assess human risk and dynamically adapt policy controls, integrated natively with Microsoft 365 via Outlook Add-in, API, and Integrated Cloud Email Gateway.

Egress generates revenue through enterprise SaaS subscriptions sold on annual or multi-year contracts with quote-based custom pricing. Its go-to-market combines direct enterprise sales, channel/reseller partnerships, and product-led growth via free cybersecurity tools. The platform serves Microsoft 365 organizations primarily, with named customers spanning healthcare (Shields Health Solutions), financial services (First Bank), and insurance (Crawford & Company). Post-acquisition, Egress has been integrated into KnowBe4's HRM+ (Human Risk Management Plus) platform, combining email security with security awareness training, real-time coaching, and AI defense agents. As of October 2024, KnowBe4 reported over 63,000 active U.S. customers, with 98.2% avoiding a public data breach. The email security market is projected to reach $16.19 billion by 2032, and Egress has been recognized as a Gartner Magic Quadrant Leader for Email Security Platforms in 2024 and 2025 and received the Frost & Sullivan 2026 Global Email Security Customer Value Leadership award.

Name

Egress Software

Legal name

Egress

Website

https://egress.com

Company type

Private

Founded year

2007

Operating status

Acquired

Headcount range

101–250 employees

Short description

Egress Software is a London-based cloud email security provider offering AI-driven anti-phishing, data loss prevention, and encryption products, operating as a subsidiary of KnowBe4 since its 2024 acquisition and serving enterprise Microsoft 365 organizations.

Ownership category

akta.pro rank

Product category

Cloud Email Security

NAICS

Software Publishers (5132)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Email Phishing & BEC Protection (HDADAKAB)

akta.pro secondary industries

Secure Email Gateway (SEG) (HDADAKAA), Attack Detection & Response for Cloud/SaaS (SOC for Cloud) (HDADAGAJ), Network Security Managed Services (Firewall/IDS/IPS/SASE) (BPAEADAG), Threat Intelligence Services (BPAEADAC)

Keywords

• Cloud email security
• Anti-phishing software
• Data loss prevention
• Email encryption
• Secure file sharing

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Cloud Email Security Subscriptions: SaaS subscription model for email security products (Defend, Prevent, Protect) with per-user or organization-based pricing. Revenue derived from annual or multi-year subscription contracts for Microsoft 365 integrated security solutions.
2. Secure Workspace Subscriptions: Subscription-based secure file sharing and collaboration platform, providing recurring revenue from enterprise teams requiring secure data exchange capabilities.
3. Secure Web Form Subscriptions: Subscription model for secure data collection and form-building services, targeting organizations requiring compliant inbound data workflows.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Egress is a cloud-native email security platform that uses an adaptive security model, contextual machine learning, and neural networks to detect inbound threats (phishing, ransomware, BEC) via Defend, prevent outbound data loss via Prevent, and provide policy-based email encryption via Protect. It also offers Secure Workspace for encrypted file sharing and collaboration, and Secure Web Form for compliant inbound data collection. The offering is delivered as SaaS, tightly integrated with Microsoft 365.

Product overview

Egress, a KnowBe4 company, offers a cloud email security platform with an adaptive security model. The product portfolio consists of five integrated modules: Defend (inbound email security/anti-phishing), Prevent (outbound email protection and data loss prevention), Protect (email encryption), Workspace (secure file sharing and collaboration), and Web Form (secure data submission). The platform leverages AI and machine learning to continuously assess human risk and dynamically adapt policy controls, defending against advanced phishing attacks and outbound data breaches.

Differentiator

Problem solved

Functional benefit

Brands

• Defend: Inbound email security product that detects and blocks advanced phishing attacks, ransomware, and business email compromise using behavioral AI.
• Prevent
• Protect
• Workspace
• Web Form

Products and services

• Defend AI-powered inbound email security product that detects and blocks advanced phishing attacks, ransomware, and business email compromise using behavioral AI and self-learning threat models. Built for Microsoft 365 organizations seeking threat protection beyond native Microsoft defenses.
• Prevent Outbound email protection and data loss prevention (DLP) product that monitors outbound email in real-time, alerts users to risky behavior such as accidental sends or misdirected emails, and prevents data breaches before they happen. Integrated with Microsoft Outlook and Office 365.
• Protect Policy-based email encryption solution providing secure, certified end-to-end email communication with granular access controls, automatic encryption, and FIPS 140-2 certified protection.
• Workspace Secure file sharing and collaboration platform enabling users to securely share, control, and collaborate on files with teammates and external parties, featuring real-time editing, e-signatures, malware scanning, MFA, and granular access controls. ISO 27001 certified.
• Web Form Secure data submission and form-building solution for capturing sensitive customer and third-party data, with 256-bit AES encryption, malware scanning, file type restrictions, customizable branding, conditional validation, and API integration with tools such as Salesforce and Zendesk.

Quantifiable outcome

• Stop up to 97% more targeted email attacks
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability5 records

Feature6 records

Partnerships

One partnership is on record.

• KnowBe4flagshipStrategic or Co-development Partner · 1 January 2024KnowBe4 acquired Egress in 2024 to add KnowBe4 Defend (natural language processing-based system) to its human risk management platform. The acquisition created the largest AI-driven cybersecurity platform for managing human risk and enabled KnowBe4 to be named a Leader in Gartner Magic Quadrant for Email Security for two consecutive years.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Abnormal Security: AI-native email security platform using behavioral ML to stop BEC and phishing — a fast-moving direct competitor to KnowBe4 Defend in the AI-driven email security category.
• Mimecast: Directly comparable cloud-native email security provider offering advanced phishing, BEC protection, and email DLP for Microsoft 365 environments — competing head-to-head with Egress Defend and Prevent.
• Virtru: Email and file encryption provider competing directly with Egress Protect, with deep integration into Microsoft 365 and Google Workspace environments.
• Proofpoint: Long-standing email security leader offering anti-phishing, email DLP, and secure email gateway capabilities; competing with Egress across enterprise Microsoft 365 deployments.

Emerging players

• Cofense: Phishing detection and response platform with intelligence-driven anti-phishing capabilities — adjacent competitor in the broader anti-phishing and email security category.
• Ironscales: AI-driven anti-phishing and BEC protection platform with self-learning threat detection — overlapping with Egress Defend in phishing and social engineering protection.
• GreatHorn: Cloud-native email security platform focused on phishing and account takeover prevention for Microsoft 365 and Google Workspace — comparable niche positioning to Egress Defend.
• Material Security: Modern email security and DLP platform built natively for cloud email (M365/Google Workspace), competing with Egress Defend and Prevent in the cloud-native overlay category.

Broad incumbents

• KnowBe4: Parent company and broader human risk management platform. Provides context for Egress's scale, distribution, and integrated GTM motion (HRM+) — not a competitor but the dominant commercial vehicle for Egress products.
• Microsoft (Defender for Office 365): Native email security inside the Microsoft 365 ecosystem; included with E5 licenses. The primary incumbent Egress positions against and the dominant factor shaping its addressable market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/EgressSoftware
• YouTubeyoutube.com/knowbe4
• Facebookfacebook.com/knowbe4
• LinkedInlinkedin.com/company/knowbe4
• TikToktiktok.com/@knowbe4inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds4 records

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Egress Software