Ronan Systems

What Ronan Systems does

Ronan Systems, LLC is a privately-held US industrial instrumentation manufacturer headquartered in Valencia, California, that designs and builds alarm annunciation systems, event recorders, signal conditioning equipment, leak detection systems, and process monitoring products for power generation and process industry customers. Founded in the late 1950s/1970s and operating with 11-50 employees, the company offers a portfolio of more than 30 product SKUs organized across annunciator families (X2, X3, X9EXP, X11 series, X12, X16, X19N, X100N, X110, X120), event recorders (X11CB, X500F), LED lamp cabinets (LB series), leak detection systems (X76 family), and signal conditioning products (X25, X51N, X54, X55, X57, X87, X88).

The underlying technology centers on industrial-grade hardware with proprietary firmware. The flagship X11CB Event Recording Annunciator supports up to 400 alarm points, Ethernet connectivity, and industrial protocols including TCP/IP, UDP Ronan Proprietary, MODBUS over TCP, and DNP3, with event time stamping to 1mS resolution and SQL database event history export. The X12 supports both analog and digital inputs with up to 300% expandability, the X57 provides plug-in intrinsically safe shunt zener diode barriers for hazardous areas, and the X87 process monitor is API 670 compliant for temperature, level, flow, pressure, position, and vibration monitoring. Multiple products carry CSA and UL approvals and the company maintains ISO 9001 quality certification.

The business model is hardware-centric: revenue derives from unit sales of annunciators, transmitters, leak detectors, signal conditioners, and process monitors, supplemented by custom engineering solutions and legacy product spares/service. Pricing is not publicly disclosed. The company sells through a network of 43 manufacturer representatives covering 30+ US states, all Canadian provinces, and international markets across South America, Asia, the Middle East, and Australia, with direct sales for custom engineering solutions. In 2025, Ronan Systems acquired the California Division of Ronan Engineering Company, expanding its portfolio into additional alarm annunciation, leak detection, and I/P product lines.

Name

Ronan Systems

Legal name

Ronan Systems, LLC.

Website

https://ronansystems.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

Ronan Systems is a private US industrial instrumentation manufacturer that designs and builds alarm annunciators, event recorders, leak detection systems, and signal conditioning products for power plants and process industries globally.

Ownership category

akta.pro rank

Product category

Industrial Alarm Annunciation Systems

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Audible-Visual Alarms & Notification Devices (Sounders, horns, siren/strobe combos for industrial use) (IMAGAIAF)

akta.pro secondary industry

Safety Instrumented Systems & Machine Safety Control (SIS, Safety PLCs, Relays) (IMAGABAF)

Keywords

• Industrial alarm annunciators
• Process monitoring systems
• Leak detection equipment
• Signal conditioning devices
• Event recording systems

Headquarters

HQ city

Valencia

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales

Distribution channels1 record

Marketing channels2 records

Core offering

Ronan Systems manufactures and sells industrial alarm annunciators, event recorders, signal conditioning equipment, leak detection systems, and process monitors for power plants and process industries. The product portfolio spans window annunciators (X-series), solid-state annunciators, explosion-proof alarms, intrinsically safe barriers, I/P and P/I converters, RTD and pressure transmitters, continuous tank monitoring, and LED display cabinets. Products are designed and built in America with custom scaling, hazardous-area certifications, and integration with industrial Ethernet protocols.

Product overview

Ronan Systems provides industrial alarm annunciation, monitoring, signal conditioning, leak detection, and process monitoring solutions. The product portfolio centers on window annunciators (X2, X3, X9EXP, X11 series, X12, X16, X19N, X100N, X110, X120) and event recording systems (X11CB, X500F) for alarm display and incident analysis. Signal conditioning products include transmitters (X54 series), signal conditioners (X51N), I/P and P/I converters (X55 series), and intrinsically safe barriers (X57). Leak detection systems (X76 series) and process monitors (X87, X88) complete the monitoring portfolio. LED lamp cabinets (LB series) provide visual alarm indication. The X11CB represents their latest event recording technology with Ethernet connectivity and SQL database export, while the X16 supports split-architecture deployments for large control rooms. The company recently acquired Ronan Engineering Co.'s California division, expanding their alarm annunciation and monitoring capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• X19N Series: Self-Contained Alarm units providing complete annunciation capability for Nema 4X or NEMA 12 Applications
• X11CB Series
• X12 Series
• X57 Series
• X76 Series
• X87 Series

Products and services

• X11CB Event Recording Annunciator Latest generation event recording annunciator for process and power industries featuring LED window modules, Ethernet interface, 400 alarm point capacity, 1mS event time stamping resolution, and SQL database event history export. Supports industrial protocols including TCP/IP, UDP Ronan Proprietary, MODBUS over TCP, and DNP3.
• X16 Split Architecture Remote Annunciator Remote-mounted alarm display system with modular logic housed in relay rack-mount or surface-mount chassis, supporting analog and digital inputs up to 150ft distance for large control rooms.
• X12 Integral System Annunciator Versatile window annunciator supporting both analog and digital inputs with multi-sized conventional windows, high noise immunity, up to 300% expandability, and CSA and UL approvals.
• X19N Single Point Annunciator Self-contained single point alarm unit for NEMA 4X or NEMA 12 applications with standard alarm sequence, flashing light, horn, CSA approved, and easy field wiring with capability to mate with audible signaling units and beacons.
• X2 and X3 Relay Alarm Annunciators Relay-based alarm annunciators for industrial alarm monitoring applications, providing reliable alarm display in process and power environments.
• X9EXP Explosion Proof Annunciator Explosion proof annunciator for hazardous location alarm monitoring applications.
• X11SN Solid State Annunciator Solid state annunciator for alarm monitoring with solid-state reliability.
• X11CA Computer Annunciator Computer annunciator for alarm display and monitoring in control room environments.
• X100N Ultralarm Fault Recorder Ultralarm fault recorder for industrial alarm and fault recording applications.
• X110 Serial Input Visual Annunciator Serial input visual annunciator for networked alarm display.
• X120 Multiplexer/Termination Unit Input multiplexer and controller module for system integration.
• X16PDM Programmable Digital Monitors Programmable digital monitor for custom alarm and monitoring applications.
• X500F Sequence of Event Recorders Sequence of event recorder for industrial process monitoring and incident analysis.
• X71 Mosaic Graphic System Mosaic graphic system for visual alarm display and process visualization.
• X15 Explosion Proof Alarm Explosion proof alarm for hazardous location applications.
• LED Indicators and Lamp Boxes (LB Series) LED indicators and LB-series LED lamp cabinets (LB1234, LB1500, LB2100-2200, LB2448, LB3500, LB5500) for alarm display and status visualization in industrial environments.
• X76CTM Continuous Tank Monitoring Continuous tank monitoring system for level and leak detection in storage tanks using proprietary software and high accuracy sensors.
• X76LVC Leak Detection System Leak detection system for monitoring and alerting on fluid leaks with high accuracy sensors and proprietary software for custody transfer and inventory management.
• X76S Leak Detector System Leak detector system for industrial leak detection applications.
• X76-RA-4X Remote Leak Detection Single Point Annunciator Remote leak detection single point annunciator combining leak detection with alarm display for industrial environments.
• X25 Loss of Motion Detector Loss of motion detector for monitoring rotating equipment and machinery in industrial applications.
• X51N Signal Conditioner Signal conditioner for converting and amplifying field signals in industrial automation.
• X54-200 Series Standard 2-Wire Transmitters Loop-powered 2-wire transmitters for signal conditioning and transmission.
• X54-3000 Din Rail Transmitters Multi-channel RTD transmitters for DIN rail mounting.
• X55-300 Series Pressure to Current Converters Pressure to current (P/I) converters for industrial signal conversion.
• X55-600 Series Current to Pressure Transducer Current to pressure (I/P) transducers for pneumatic control applications.
• X57 Intrinsically Safe Barriers Intrinsically safe barriers for hazardous area applications, plug-in shunt zener diode type with 1-4 channels per module, limiting power from safe area into hazardous area to prevent explosions.
• X87 Temperature Process/Rotating Machine Monitor and Alarm System Process monitor providing signal conditioning, alarm, digital readouts, and re-transmission for temperature, level, flow, pressure, position, and vibration, API 670 compliant.
• X88 Calibrator Portable calibrator providing laboratory grade standard calibration (discontinued product, calibration and spares still supported).

Quantifiable outcome

• Event time stamping to 1mS resolution for precise incident investigation

Segments2 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Ronan Engineering Co. California DivisioncoreStrategic or Co-development PartnerRonan Systems LLC acquired Ronan Engineering Company California division, expanding product portfolio to include Alarm annunciation & monitoring, leak detection, I/P and related products. This acquisition enhances Ronan Systems' market position in the industrial alarm and monitoring space.

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Emerson (AspenTech/DeltaV): DeltaV DCS with alarm management software and Rosemount instrumentation serve the same process industry customers; overlaps with Ronan on annunciator/measurement functionality but at much broader scale.
• Honeywell Process Solutions: Operator of the Experion process control platform with integrated alarm management and annunciation functionality serving the same power and process industries that Ronan targets, but as part of a much broader automation portfolio.
• Rockwell Automation: FactoryTalk and PlantPAx process automation systems include alarm management capabilities competing with Ronan annunciators in process and discrete manufacturing plants.
• ABB: Provides System 800xA with built-in alarm/event management for industrial process plants; competes with Ronan in power and process plant control rooms while also offering full DCS scope Ronan does not.
• Siemens: SIMATIC PCS 7 DCS bundles alarm/event handling comparable to Ronan offerings and targets the same power and process plant control room use cases.
• AMETEK: Through its Process & Analytical Instruments segment, AMETEK supplies signal conditioning, RTD transmitters, and process measurement devices comparable to Ronan's X51N, X54, and X87 product families.

Direct peers

• Pilz: Specialist in safety instrumented systems (Safety PLCs, machine safety relays) with overlap to Ronan's X57 intrinsically safe barriers and X87 API 670 process monitor on the safety-side of process industry applications.
• Schweitzer Engineering Laboratories (SEL): Supplies protection, monitoring, and event-recording equipment (including annunciators and fault/sequence-of-event recorders) to electric utilities and process plants — directly comparable to Ronan's X11CB and X500F offerings in the power industry.
• R. Stahl: Manufacturer of explosion-proof and intrinsically safe equipment including annunciators and IS barriers; directly comparable to Ronan's X9EXP/X15 explosion-proof annunciators and X57 IS barriers for hazardous-area process plants.

Regional players

• Ronan Measurement (Ronan Engineering Co. parent): The remaining Ronan Engineering Company now operates as Ronan Measurement; its X76CTM/X76 leak detection and related products are closely comparable to Ronan's expanded leak detection portfolio following the 2025 acquisition of the California division.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ronansystems

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 Ronan Systems