Founded in Sweden in 2010, Halon has expanded globally, operating close to our customers and supporting mission-critical email services worldwide.

Halon is the modern email infrastructure and security company for businesses where email is existential. Our mission is straightforward, yet powerful and complex: empower businesses through Dynamic and Secure Email Operations™.

In an era where email is still the most important communications channel for business success, we offer fully-secure solutions that power innovation with flexibility, scalability and control. 

With Halon Engage, Halon Protect and Halon Classify, plus the best engineering expertise on the planet, Halon keeps your operational email flowing, without the hassle. 

Our Vision

Be the most innovative email infrastructure and security company that sets the industry standard, with the most successful clients.

How we achieve it

We empower organizations to increase customer satisfaction and drive growth through Dynamic and Secure Email Operations™.

That means 10x faster feature development, less manual triage, fewer traffic bottlenecks, and reduced escalations. The result is more resilient email operations, happier teams, faster time to market, and increased revenue.

Our Core Values

• Clients first - We want our clients to succeed and we exceed their expectations.
• Passion & commitment - We are ambitious, motivated by joy, innovative and we love to win.
• Move fast, together - We put words into action and clearly communicate goals and expectations.
• Trust created by transparency - We are honest and foster a culture of mutual respect and kindness.

Halon Engage powers large-scale senders such as email service providers, martech platforms, or large B2C & B2B brands to move beyond basic delivery with control, intelligence and agility. It is designed to revolutionize how businesses manage and optimize their email infrastructure, ensuring maximum performance and reliability. Finally, an email infrastructure that scales with your ambition, not against it.


Halon Protect is a leading email security solution crafted to provide the flexibility, performance, and total control needed for unparalleled protection for service providers. Teams can define, enforce, and adapt precise security policies across email flows, maintaining performance, visibility, and compliance as threats and standards evolve.

Best-of-breed threat protection that safeguards your users against today’s sophisticated threats. With Halon Protect, you can trust that your email communications are secure, reliable, and resilient against attacks and spam, ensuring peace of mind and operational continuity.


Halon Classify offers carrier-grade threat detection and email protection built on deep threat intelligence. Halon Classify protects users worldwide from email-borne threats. Carrier-grade performance and world-leading detection rates combined with the flexible integration ability into any environment at any size, makes Halon Classify a perfect solution for those who really care about email security.

Crafted by teams in Europe and with cutting-edge detection technologies, it is fully GDPR compliant. Stop wasting time and resources on self-built and maintained solutions and start focusing on your business again. Let Halon Classify protect your users from spam, phishing, and malware to ensure smooth operations.