Zener

What Zener does

Zener provides a distributed Software-Defined Firewall (SDF) solution that enforces firewall rules at the individual Node level across enterprise IT infrastructure. The platform consists of three components: the Zener Agent (a lightweight local agent deployed on each Node that applies and enforces rules), the Zener Rule Engine (a centralized system for defining, generating, and distributing pattern-based firewall rules via GUI, API, or CLI), and the Zener Insights module (a RESTful API and GUI providing network state, traffic data, user access logs, and work logs). The architecture is designed to enable Zero Trust security models with deny-all-by-default traffic filtering, support dynamic network segmentation, and integrate with CI/CD pipelines for automated rule deployment. The solution is claimed to scale to 100,000 servers without performance degradation and works across heterogeneous environments including on-premise data centers, public clouds, containers, virtual machines, and unikernels.

The company targets large enterprise IT organizations with complex hybrid infrastructure, particularly those seeking to replace expensive hardware firewalls (60G/100G) and complex TCAM-based rule management with a software-defined, model-based alternative. Zener operates as a product/brand under Norwegian parent company Northern.tech and is headquartered in Oslo. The company monetizes through subscription-based software licensing with quote-based pricing and a direct enterprise sales motion via an early access program, indicating a consultative, pilot-driven go-to-market approach typical of early-stage infrastructure software vendors.

Founded in 2017, Zener remains at an early commercial stage with 11-50 employees. Public customer evidence is limited to a single named reference (LinkedIn, via a senior engineer's public presentation), with Google and Facebook cited as architectural models rather than paying customers. No funding rounds, revenue figures, or management team details are disclosed in available sources.

Name

Zener

Legal name

Zener

Website

https://zener.io

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Zener provides a distributed Software-Defined Firewall that enforces security rules at the Node level for enterprise IT organizations operating hybrid on-premise and cloud infrastructure, replacing traditional hardware firewalls with model-based software automation.

Ownership category

akta.pro rank

Product category

Network Security Software

NAICS

Software Publishers (5132)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Cloud Network Security (Microsegmentation, Cloud Firewall) (HDADADAH)

akta.pro secondary industry

Hybrid Cloud Security, Identity & Policy Enforcement (HDABAMAC)

Keywords

• Software defined firewall
• Network segmentation software
• Distributed firewall
• Zero trust security
• Hybrid cloud security

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Subscription/License: Zener appears to operate on a software licensing model, with sales conducted through direct engagement via their early access program. Pricing is quote-based and not publicly disclosed.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Zener is a distributed Software Defined Firewall (SDF) solution that protects IT infrastructure at the Node level by centrally defining model-based firewall rules and automatically generating, distributing and enforcing them locally on every node. It is built on three components — a Zener Rule Engine, a lightweight Zener Agent on each node, and a Zener Insights reporting/analytics module — and is delivered via a software subscription/license with quote-based enterprise pricing.

Product overview

Zener is a distributed Software Defined Firewall (SDF) solution comprising a unified core product and supporting modules. The core Zener product provides distributed firewall protection at the Node level, working in conjunction with the Zener Rule Engine for centralized rules management, the Zener Insight Service for reporting and analytics, and the Zener Agent for local enforcement on each node. The architecture combines central automation with local enforcement, enabling organizations to implement Zero Trust security models, achieve dynamic network segmentation, and automate firewall rule distribution across hybrid IT infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Zener Software Defined Firewall A distributed Software Defined Firewall (SDF) solution that protects IT infrastructure at the Node level by enforcing local firewall rules based on a unified ruleset defined in the Zener Rule Engine, enabling dynamic network segmentation, Zero Trust security, and automated rule distribution across hybrid IT environments. Built for large enterprise IT organizations with on-premise and public cloud environments.

Quantifiable outcome

• Scales to 100,000 servers without performance degradation
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Illumio: Pure-play microsegmentation vendor using agent-based enforcement to deliver Zero Trust segmentation across hybrid environments — closest functional and architectural peer to Zener.
• ColorTokens: Zero Trust segmentation vendor with agent-based microsegmentation for cloud and data center — competes head-to-head with Zener for the same regulated enterprise and hybrid-cloud buyers.
• Akamai (Guardicore): Akamai acquired Guardicore to offer agent-based microsegmentation and zero-trust workload protection — a near-direct functional competitor to Zener's distributed enforcement model.

Broad incumbents

• Juniper Networks: Traditional networking vendor with a Connected Security portfolio including distributed firewalls; competes in the same hybrid data center and cloud perimeter refresh cycles as Zener.
• Palo Alto Networks: Leading network-security incumbent with Prisma Cloud and a broad portfolio spanning next-gen firewalls, microsegmentation, and cloud workload protection — overlaps with Zener's distributed firewall and Zero Trust positioning.
• Cisco: Enterprise networking incumbent with Secure Firewall and Hypershield / Secure Workload (Tetration) offerings that target microsegmentation and hybrid cloud policy — directly comparable buyer segment to Zener.
• VMware (by Broadcom): NSX is a marquee microsegmentation and distributed-firewall platform for data center and hybrid cloud — one of the most direct incumbents to Zener's SDF thesis.

Emerging players

• SUSE NeuVector: Container and Kubernetes-native security platform now under SUSE that includes runtime/network policy — adjacent to Zener's node-level enforcement across containerized and hybrid environments.
• Coronet: Cloud-focused security vendor with network and workload protection offerings that overlap partially with Zener's hybrid-cloud positioning, particularly for SMB and mid-market.
• Tigera (Calico): Kubernetes-native network policy and security platform (Calico) that delivers distributed workload-level firewalling — adjacent competitor in the cloud-native enforcement niche.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Zener