What Arbiter Systems does

Arbiter Systems, Inc., founded in 1973 and headquartered in Paso Robles, California, is a private U.S. manufacturer of GPS/GNSS-synchronized precision time clocks, synchronized power measurement instruments, and power calibration products engineered and assembled in the United States. The company sells primarily to the electric-power vertical, with documented use cases spanning substation timing, synchrophasor measurement under IEEE C37.118, revenue metering (0.025% accuracy), power-quality monitoring per IEC 61000-4-7/4-15, and end-to-end relay testing. Its installed base includes flagship Model 120x GNSS clocks ranging from 200ns to 40ns accuracy, the Model 1133A Power Sentinel™ PMU, the Model 940A Timing System Analyzer, the Model 1073A distribution amplifier, and a complementary line of fiber-optic/copper signal adapters, current transformers, and assembled test leads.

The company's technical differentiators are patent-protected holdover topologies (US 9,326,926 and US 9,979,406 B2) that maintain OCXO- or rubidium-based timing accuracy during GNSS outages, proprietary PowerDSA™ and EnergyDSA™ digital signal analysis technologies, multi-constellation receivers tracking GPS/GLONASS/Galileo/BeiDou, and Enhanced Performance and Security (EPS) features including anti-spoofing and encrypted configuration. Certifications include NIST-traceable conformance, FCC Part 15 Class A, CE marking, and compliance with NERC PRC-002/PRC-018 and IEC-687.

Commercially, Arbiter operates a product-led but relationship-driven go-to-market: a catalog website with downloadable datasheets and firmware, a clock selection guide, a manufacturer-representative channel for North America (USA, Canada, Mexico) supplemented by direct factory sales via [email protected], and multilingual support (English, French, Spanish). Revenue is generated almost entirely through configure-to-order hardware sales across the clock, PMU, analyzer, and accessory families, with limited-lifetime or 5–10 year warranties on most timing products; pricing is not publicly disclosed. The firm has no disclosed external funding, no M&A activity, and a 11–50 employee headcount consistent with a long-tenured, founder/management-owned specialist.

Name

Arbiter Systems

Legal name

Arbiter Systems, Inc.

Website

https://arbiter.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

Arbiter Systems, founded 1973 and based in Paso Robles, California, is a private U.S. manufacturer of GPS/GNSS-synchronized precision time clocks and synchronized power measurement instruments sold primarily to electric utilities for substation timing, synchrophasor, and power-quality applications.

Ownership category

akta.pro rank

Product category

Precision Timing and Power Measurement Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Grandmaster Clocks (PTP IEEE 1588) (HDAFAKAB)

akta.pro secondary industries

Oscillators & Frequency Standards (OCXO/Rubidium/Cesium/Chip-Scale Atomic) (HDAFAKAG), AMI Smart Meters (Electric) & Meter Hardware (EUADAFAA), Metering, Calibration & Flow Measurement Verification (EUAEAHAM), Power Quality, Metering & Monitoring (HDACAJAG), Calibration Services & Standards (Calibration labs, reference standards, traceability services) (IMAGAFAH)

Keywords

• Precision GPS timing
• Synchrophasor measurement
• GNSS synchronized clocks
• Power measurement instruments
• Substation timing equipment

Headquarters

HQ city

Paso Robles

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Timing Hardware Sales: Sale of GPS/GNSS synchronized time clocks and timing system analyzers ranging from entry-level to high-precision models. Revenue generated through direct product sales with various accuracy specifications (40ns, 100ns, 200ns, 250ns) and feature configurations. Most clocks backed by Limited Lifetime Warranty or 5-10 year limited warranties.
2. Power Measurement Instruments: Sale of power measurement and calibration products including Power Sentinel™ PMU devices, portable power meters, power system analyzers, and reference current transformers. Revenue metering accuracy of 0.025% and power quality measurement capabilities.
3. Accessories and Components: Sale of assembled test leads, fiber-optic/copper signal adapters, antennas, cables, mounting kits, and other accessories. Products include standard and custom configurations with various connector types and cable lengths.
4. Engineering Services: Technical engineering services including system design consultation, installation support, and maintenance services. Available through the Engineering Service support section on the company website.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Arbiter Systems manufactures GPS/GNSS-synchronized precision time clocks, synchronized power measurement instruments, and power calibration products for the electric power industry. Its portfolio covers multi-constellation GNSS clocks with 40–250ns accuracy, IEEE C37.118-compliant phasor measurement units (PMUs), power system analyzers, reference current transformers, distribution amplifiers, and supporting signal adapters and test leads. The products are engineered and manufactured in the USA for utility, substation, metrology, and relay testing applications.

Product overview

Arbiter Systems provides precision GPS/GNSS timing and power measurement solutions for the electric power industry, specializing in synchrophasor applications. The product portfolio centers on three core technology areas: (1) Timing and Frequency products including the Model 120x series GNSS synchronized clocks (120A, 1200B, 1201B/C, 1202B/C, 1205B/C, 1205D, 1206B/C) ranging from 200ns to 40ns accuracy with features like Enhanced Performance and Security (EPS), NTP/PTP server capability, and anti-spoofing technology; the 1094B GPS Substation Clock and 1095A/C Industrial GPS Clock for value and rugged applications; the 940A Timing System Analyzer for substation timing verification; and the 1073A Distribution Amplifier for extending timing signals. (2) Synchronized Power Measurement products featuring the 1133A Power Sentinel PMU combining precision GPS timing with power quality monitoring, harmonics measurement, and revenue metering at 0.025% accuracy, plus supporting Model 935A Current Source and Model 936A Reference Current Transformer for calibration. (3) Assembled Test Leads providing standard and custom connectivity solutions for power measurement applications. The company leverages proprietary technologies including PowerDSA and EnergyDSA digital signal analysis, and holds patents for high-reliability holdover methods.

Differentiator

Problem solved

Functional benefit

Brands

• Power Sentinel™: Product line combining precision timing with power metering and measurement functions, compatible with IEEE C37.118 synchrophasor standards.

Products and services

• Model 940A Timing System Analyzer A comprehensive substation timing instrument for power utilities and technicians that reads, analyzes, and sources IRIG-B signals, with dual input channels for comparing timing signals and a touchscreen display.
• Model 120A GNSS Synchronized Clock (100ns) Compact multi-constellation GNSS timing source with 100ns rms accuracy designed for enclosed installations such as reclosers, with rugged bulkhead-mount antenna.
• Model 1200B GNSS Synchronized Clock (200ns) GNSS synchronized clock delivering 200ns accuracy with multi-constellation support, NTP/PTP server capability, and jumper-selectable outputs for IRIG-B and programmable pulses.
• Model 1201B/C GNSS Synchronized Clock (100ns) Next generation multi-satellite precision timing clock with 100ns accuracy featuring Enhanced Performance and Security (EPS) including multi-constellation support, secure communications, and anti-spoofing technology.
• Model 1202B/C GNSS Synchronized Clock (100ns) Precision timing clock with 100ns accuracy, six BNC outputs, dual SPDT fail-safe relays, and Enhanced Performance and Security, designed as drop-in replacement for Model 1084A/B/C installations.
• Model 1205B/C GNSS Synchronized Clock (40ns) Precision timing clock with 40ns typical accuracy featuring Enhanced Performance and Security, three Ethernet ports, NTP/PTP server, and full network protocol support.
• Model 1205D GNSS Synchronized Clock (40ns) DIN Rail mounted precision timing clock with 40ns accuracy, Enhanced Performance and Security, three Ethernet ports, and surge-withstand capability for substation installation.
• Model 1206B/C GNSS Synchronized Clock (40ns) High-precision timing clock featuring rubidium holdover oscillator maintaining 1 µs/24h accuracy, 40ns typical accuracy, and Enhanced Performance and Security technology.
• Model 1094B GPS Substation Clock (250ns) Value-priced GPS substation clock with 12-channel GPS receiver, four configurable outputs, and IEEE C37.118-2005 synchrophasor compliance for substation timing applications.
• Model 1095A/C Industrial GPS Clock (250ns) Rugged industrial GPS clock with IP65/NEMA rating for harsh environments, operating range of -40°C to +85°C, <100ns typical accuracy, and four configurable outputs.
• Model 1073A Distribution Amplifier Time code distribution amplifier with three channels of four high-drive outputs for extending timing signals across wider geographic areas using copper or fiber-optic cabling.
• Model 1133A Power Sentinel PMU IEEE C37.118-compliant Phasor Measurement Unit (PMU) combining precision GPS timing with power quality monitoring, harmonics measurement, flicker analysis, and revenue metering with 0.025% accuracy.
• Model 935A Current Source Precision current source for testing instrument current transformers and measuring ratio and phase angle errors, compatible with Model 931A and Model 936A.
• Model 936A Reference Current Transformer Laboratory-grade reference current transformer providing high accuracy in a portable, ruggedized case for field calibration of other current transformers.
• Model 921A Combustible Gas Meter Combustible gas meter offered under the Power Measurement and Calibration product line for utility and laboratory power measurement applications.
• Model 928A Power System Multimeter Power system multimeter for power measurement and calibration tasks in field and laboratory settings.
• Model 931A Power System Analyzer Power system analyzer for power measurement and calibration applications in substations, laboratories, and field testing.
• Engineering Service Engineering service offering system design consultation, installation support, and maintenance services for Arbiter timing and power measurement products.

Quantifiable outcome

• Power measurement accuracy within 0.11% for PowerDSA™ instruments
• +4 more outcomes

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Meinberg: German specialist in GNSS-synchronized grandmaster clocks and PTP/NTP timing infrastructure - a direct competitor in the same precision-timing product category serving power utilities, telecom, and broadcast.
• Tekron International: Specialist in PTP and NTP grandmaster clocks specifically engineered for power utility and industrial substation use cases, closely mirroring Arbiter's segment focus.
• Microchip Technology (Timing & Synchronization): Inheritor of the Microsemi/Symmetricom timing portfolio, Microchip offers GPS/GNSS disciplined clocks and PTP grandmaster silicon plus systems, addressing the same precision-timing customers in power and telecom.
• SEL (Schweitzer Engineering Laboratories): Dominant substation protection and automation vendor whose SEL-2400/2480 satellite-synchronized clocks compete head-to-head with Arbiter in utility substations, often bundled with protection relays.
• Orolia (Spectracom): Now part of Safran, Orolia/Spectracom provides precision timing, including GNSS clocks and PTP grandmasters, with strong positioning in power utility and defense - overlapping almost entirely with Arbiter's core SKUs.

Broad incumbents

• Siemens Energy: Incumbent grid automation supplier whose substation and PMU portfolios include timing subsystems, positioning it as a broad, well-funded alternative to dedicated timing specialists like Arbiter.
• General Electric Grid Solutions: A large, established vendor of synchrophasor/PMU and substation automation systems with embedded timing functionality - competes with Arbiter indirectly as part of broader grid modernization portfolios.

Emerging players

• Doble Engineering: Provider of diagnostic instruments and test equipment for electric power assets. Adjacent to Arbiter's power measurement and calibration portfolio - sharing the same utility customer base rather than the same product form factor.
• Calnex Solutions: Provides precision timing test and measurement (PTP/NTP/SyncE verification). Comparable to Arbiter's Model 940A Timing System Analyzer in the timing verification niche - adjacent rather than head-on competitor.

Regional players

• Itron: AMI smart metering leader that overlaps with Arbiter's revenue-metering accuracy claims at the utility-end-device layer - comparable not as a direct clock competitor but as a competing instrumentation footprint inside the same utility customers.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/2561243

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Arbiter Systems