Waterfall Security Solutions Ltd.

What Waterfall Security Solutions Ltd. does

Waterfall Security Solutions Ltd. is an Israel-headquartered, privately held industrial cybersecurity vendor founded in 2007, specializing in hardware-enforced unidirectional security gateways for operational technology (OT) and critical infrastructure environments. Its core product architecture combines proprietary fiber-optic hardware that physically enforces one-way data flow with software connectors and management tools, preventing any network-based cyberattack — including zero-days and nation-state-grade threats — from crossing from IT networks into protected OT networks. The portfolio spans the Unidirectional Security Gateway family (WF-500, WF-600 Performance, and the June 2026 entry-level DiodeCore), hardware-enforced remote access (HERA, WF-Flip, WF-Secure Bypass, WF-RSV), and supporting modules (Waterfall Central monitoring, Waterfall for IDS, Waterfall Blackbox forensic repository), protected by 14 U.S. and 13 Israeli patents and certified to Common Criteria EAL 4+, ANSSI CSPN, NITES, KC, and Israel NISA standards.

The company sells almost exclusively to large enterprise operators of critical infrastructure — electric power utilities, oil and gas operators, rail and metro systems, water/wastewater utilities, manufacturers, data centers, airports, healthcare/biotech firms, and government/defense facilities — through a global direct field-sales motion with dedicated North America and EMEA/APAC teams, complemented by a partner ecosystem of 15+ tier-one industrial OEMs and IT security platforms (Schneider Electric, Siemens Energy, GE Vernova, Alstom, Splunk, AVEVA, Dragos, Fortinet, CyberArk, Emerson, Yokogawa). Revenue is generated through hardware appliance sales, recurring software subscriptions, and professional services under quote-based annual contracts; pricing is not publicly disclosed. Waterfall reports over 1,000 sites protected across more than 20 verticals and operates regional offices in the U.S., Netherlands, Australia, UAE, and Singapore in addition to its Rosh Ha'ayin global headquarters.

Name

Waterfall Security Solutions Ltd.

Legal name

Waterfall Security Solutions Ltd.

Website

https://waterfall-security.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

101–250 employees

Short description

Waterfall Security Solutions Ltd. builds hardware-enforced unidirectional security gateways and supporting OT cybersecurity products that protect critical infrastructure operators — including electric power, oil and gas, rail, water, manufacturing, and government — from cyberattacks through physically enforced one-way data flow.

Ownership category

akta.pro rank

Product category

Industrial Cybersecurity

NAICS

Security Systems Services (except Locksmiths) (561621), Security Systems Services (56162)

SIC

Computer Communications Equipment (3576), Communications Equipment, Nec (3669)

akta.pro primary industry

Secure Industrial Gateways, Data Diodes & Unidirectional Security (HDADAJAM)

akta.pro secondary industry

Industrial/IoT Network Perimeter Security (OT DMZ, gateways) (HDADABAO)

Keywords

• OT cybersecurity
• Unidirectional gateway technology
• Critical infrastructure security
• Industrial network protection
• ICS security solutions

Headquarters

HQ city

Rosh Ha'ayin

HQ country

Israel

HQ region

Middle East

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Security Appliances: Sale of physical unidirectional gateway hardware appliances including WF-500, WF-600 Performance, and DiodeCore product lines. Hardware provides the fundamental physical barrier against cyber threats.
2. Software Licenses and Subscriptions: Software subscriptions for Waterfall Central monitoring, HERA remote access, and software connectors. Ongoing software updates and support bundled with hardware purchases.
3. Professional Services: Consulting services including free initial consultation and paid implementation services for critical infrastructure security deployments.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels8 records

Core offering

Waterfall Security Solutions designs, manufactures, and sells hardware-enforced Unidirectional Security Gateways and related modules for protecting operational technology (OT) networks at industrial critical infrastructure sites. Its proprietary fiber optic hardware physically enforces one-way data flow, preventing any cyber attack from entering protected OT networks while replicating industrial data outward to enterprise, cloud, and analytics systems. The portfolio includes Unidirectional Gateways (WF-500 and WF-600 Performance series), the DiodeCore entry-level gateway, HERA hardware-enforced remote access, Waterfall Central monitoring, and ancillary modules for scheduled updates, emergency access, remote screen view, IDS deployment, and tamper-proof forensic storage.

Product overview

Waterfall Security Solutions offers a hardware-enforced OT security platform centered on unidirectional gateway technology. The core portfolio consists of the Unidirectional Gateway (UGW) family, available in WF-500 and WF-600 Performance Series form factors, plus the newer DiodeCore entry-level gateway. Supporting the gateways are specialized modules: HERA provides hardware-enforced remote access, WF-Flip enables scheduled secure updates, WF-Secure Bypass allows emergency interactive remote access, WF-RSV provides remote screen viewing, Waterfall for IDS enables safe OT intrusion detection deployment, Waterfall Blackbox offers tamper-proof forensic storage, and Waterfall Central provides centralized monitoring. All products leverage proprietary hardware that physically enforces one-way data flow via fiber optics, preventing any cyber attack from penetrating OT networks.

Differentiator

Problem solved

Functional benefit

Brands

• HERA: Hardware-Enforced Remote Access - OT Security Remote Access Solution that is hardware-enforced
• DiodeCore
• WF-600 Performance

Products and services

• Unidirectional Security Gateway (UGW) Hardware-enforced unidirectional security gateway providing absolute OT network protection with complete network visibility. Physically prevents cyber attacks from reaching OT networks by enforcing one-way data flow via fiber optic hardware. Available in WF-500 and WF-600 Performance Series form factors.
• DiodeCore (WF-600 DiodeCore) Entry-level Unidirectional Gateway designed for simpler deployment scenarios, smaller sites, and distributed facilities. A compact half-depth 1U rack-mount device using fiber optic hardware with software delivered as closed virtual machine images for deployment on customer virtualization infrastructure.
• HERA (Hardware-Enforced Remote Access) OT Security Remote Access Solution that provides hardware-enforced remote access to OT networks without network connectivity risks. Enables secure remote management, updates, and troubleshooting for industrial networks.
• Waterfall Central Centralized monitoring platform that enables monitoring of all Waterfall Gateways from anywhere, providing enterprise-wide visibility into security gateway status and operations.
• Waterfall for IDS Solution enabling safe deployment for OT Intrusion Detection Systems (IDS), allowing IDS integration without compromising OT network security.
• Waterfall Blackbox Tamper-proof forensic repository for storing security event data and maintaining audit trails that cannot be altered or deleted.
• WF-Flip Secure scheduled updates solution that reverses a built-in Unidirectional Security Gateway to allow safe inbound updates (such as anti-virus updates and production order updates) to OT systems on a scheduled basis.
• WF-Secure Bypass (SBP) Emergency interactive remote access module installed in parallel with a Unidirectional Gateway. When activated by a key, it creates a temporary bidirectional connection for pre-programmed periods (typically 30-90 minutes) before physically disconnecting.
• WF-RSV (Remote Screen View) Safe remote monitoring solution that sends video feeds of industrial screens through Unidirectional Gateway hardware to a web server for use by remote third parties such as vendors, enabling 'escorted remote access' with full control retained by the industrial site. Certified to Common Criteria EAL 4+, ANSSI CSPN, NITES Singapore, Korean KC, and Israel NISA standards.

Quantifiable outcome

• Over 1000 sites globally protected with zero breaches reported
• +2 more outcomes

Named customers10 records

Segments8 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Seven partnerships are on record, tiered core.

• Schneider ElectriccoreTechnology or IntegrationStrategic technology partner providing integration with Schneider Electric industrial automation and control systems. Partner logo displayed on Waterfall website as part of technology ecosystem.
• SplunkcoreTechnology or IntegrationTechnology integration partner for security monitoring and analytics. Waterfall solutions integrate with Splunk for OT security monitoring.
• AVEVA (formerly OSIsoft)coreTechnology or IntegrationTechnology partner providing integration with AVEVA/OSIsoft PI System and industrial data management solutions.
• GE VernovacoreTechnology or IntegrationStrategic technology partner for integration with GE Vernova industrial control and energy management systems.
• AlstomcoreTechnology or IntegrationStrategic partner for rail industry cybersecurity solutions, providing integration with Alstom rail systems.
• Siemens EnergycoreTechnology or IntegrationStrategic technology partner for energy sector OT security integration with Siemens Energy systems.
• CarahsoftcoreChannel Partner/ Reseller/ DistributorGovernment technology distributor and reseller providing access to government and defense customers.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Claroty: Major OT/IoT security platform serving industrial, healthcare, and commercial environments. Competes with Waterfall for OT cybersecurity spend at the same enterprise customers via software-centric visibility and segmentation approaches.
• Palo Alto Networks: Large enterprise cybersecurity platform with growing OT security offerings (including OT security partnerships and ZTNA 2.0). Competes for OT cybersecurity budget at the same critical infrastructure customers via software-defined approaches.
• Nozomi Networks: OT and IoT security vendor providing network visibility, threat detection, and asset intelligence. Competes with Waterfall's central monitoring and IDS offerings in adjacent software-based OT security deployments.
• Fortinet: Global network security vendor with an OT security product line and broad enterprise footprint. As a listed Waterfall partner, Fortinet also offers competing industrial firewalls and segmentation that can substitute for hardware diodes in some architectures.
• Dragos: Leading OT security platform provider offering asset discovery, threat detection, and incident response. While Dragos is a listed Waterfall technology partner, its broader software-defined OT security platform competes for the same critical infrastructure security budget.

Emerging players

• Votiro: Specializes in file and content security with unidirectional file transfer capabilities overlapping with portions of Waterfall's data diode use cases. Competes in adjacent OT/IT boundary protection scenarios.

Direct peers

• Owl Cyber Defense: Direct competitor in unidirectional security gateways and data diodes for OT/ICS environments. Owl's OPDS and data diode product lines compete head-to-head with Waterfall's Unidirectional Gateway family across defense, intelligence, and critical infrastructure customers.
• Genua (G+D): German high-security IT and OT network solutions provider, including data diodes and unidirectional gateways. Comparable to Waterfall in regulated European critical infrastructure and government markets, with similar hardware-rooted security architecture.
• Advenica: Swedish provider of data diodes and high-assurance network security products for OT, government, and defense markets. Competes with Waterfall in European utility and government accounts with comparable hardware-enforced one-way data transfer technology.
• BAE Systems (Nexor Data Diodes): BAE Systems acquired Nexor and continues to offer data diode and cross-domain solutions for defense and critical infrastructure. Directly competes with Waterfall in government/defense verticals and in highly regulated utility markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/WaterfallSecure
• Facebookfacebook.com/WaterfallSolutions
• LinkedInlinkedin.com/company/201558

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds1 record

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 Waterfall Security Solutions Ltd.