Electroswitch

What Electroswitch does

Electro Switch Corp., operating as Electroswitch, is a privately held American electronic manufacturer founded in 1940 and headquartered at 180 King Avenue in Weymouth, Massachusetts, with a workforce of 101-250 employees. The company designs and manufactures high-reliability electromechanical switches, solid-state relays, power meters, and battery monitors for mission-critical applications across electric utility, defense/military, industrial, and data center markets. Its product portfolio is organized into two divisions: the Power Switches & Relays division, which includes lock-out relays (Series 24, Type WL, LOR-SR), manual instrument and control switches (Series 24, Series 31, Type W/W-2), tagging and annunciator relays (TR-2/TR-3, ATR, TCM), remote control selector/latching relays (CSR, TD-CSR, SCSR, SLSR), and ARGA Series 1000 battery monitors; and the Industrial/Military Switches division, which produces detent-action, snap-action, and cam-action rotary switches meeting MIL-S-6807, MIL-S-21604, MIL-S-18396, and MIL-S-15291 specifications. In March 2026 the company acquired E-MAX Instruments, a 1975-founded provider of substation control and monitoring solutions that now operates as a brand within the Power Switches & Relays business.

Electroswitch operates a sales-led go-to-market with geographically assigned Regional Sales Managers and a network of independent manufacturer representative firms covering U.S. states and select international regions (Australia, New Zealand, Republic of Korea, Canada, Mexico), supported by an inside sales and technical support team at the Weymouth headquarters. Products are sold as configured hardware units under a quote-based, one-time/perpetual model with no publicly disclosed pricing, indicating a consultative configuration-intensive sales process. Revenue is generated through hardware sales rather than recurring subscriptions, with each product configuration carrying a unique part number reflecting specific mechanical and electrical specifications. The company describes its manufacturing approach as modular and vertically integrated, capable of producing "virtually millions of different potential configurations" to match customer-specific applications. No external funding rounds or public financial disclosures are present.

The company's core technology rests on electromechanical switching mechanisms (silver contact surfaces, double-sided double-wiping knife-type rotary contacts) combined with modern digital monitoring features such as integral coil monitoring with LED display and SCADA feedback, DNP 3.0/Modbus serial communications, IRIG-B time synchronization, and programmable time-delay trip logic for arc flash protection. Products are certified to UL Recognition, CSA, CE, ANSI/IEEE C37.90-1974 surge withstand, and IEC 61000-4-3 EMC standards. Primary verticals—Electric Utility, Defense/Military, and Industrial—are each treated as core segments addressing substation panel protection, MIL-spec defense platforms, and industrial motor and power-factor control, with Data Center positioned as an emerging segment supported by E-MAX substation monitoring offerings. The company's 80+ year history includes a 1988 acquisition of the Type W switches and relays line from Westinghouse Corporation, which is still supported for legacy utility replacements, and a December 2025 leadership transition installing Shawn Smith as CEO and Matt Yopchick as CFO.

Name

Electroswitch

Legal name

Electro Switch Corp.

Website

http://electroswitch.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

101–250 employees

Short description

Electroswitch manufactures high-reliability electromechanical switches, relays, and battery monitors for electric utility, defense, industrial, and data center markets. Founded in 1940 and headquartered in Weymouth, Massachusetts, the 101-250-employee company sells configured hardware through direct sales and a manufacturer representative network.

Ownership category

akta.pro rank

Product category

Industrial Switches and Relays

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Electrical Equipment Manufacturing (3353)

SIC

Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Electromechanical Components (Relays, Switches, Potentiometers, Encoders) (IMAGAJAB)

akta.pro secondary industries

Substation Systems & Integration (EPC, Engineering, Protection, Commissioning) (IMAGAAAC), Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH), Switchgear & Switchboards (HV/MV/LV, GIS/AIS) (IMAGAAAB)

Keywords

• Electromechanical switches
• Utility power relays
• Lock-out relays
• Substation battery monitors
• Military rotary switches

Headquarters

HQ city

Weymouth

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electromechanical Switches, Relays, and Monitoring Instruments: Electroswitch manufactures and sells a wide variety of high-reliability electromechanical switches, relays, power meters, and battery monitors. Products are sold as one-time hardware purchases (per-unit), with each product configured to specific customer application requirements. The company has a modular vertically-integrated manufacturing approach enabling delivery of both standard and custom configurations quickly and cost-effectively.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Electro Switch Corp. (Electroswitch) designs and manufactures high-reliability electromechanical switches, relays, power meters, and battery monitors for utility, defense, industrial, and data center applications. Its core offerings include lock-out relays, instrument and control switches, tagging and annunciator relays, remote control switch relays, and ARGA substation battery monitors, sold as configured hardware units through a direct sales and manufacturer representative network.

Product overview

Electro Switch Corp. manufactures high-reliability switches and relays for mission-critical applications in utilities, data centers, defense, and industrial sectors. The product portfolio is organized into two divisions: the Power Switches & Relays division offering utility-grade products including lock-out relays (Series 24, Type WL), manual instrument and control switches (Series 24, Series 31, Type W), tagging and annunciator relays (Series 24 TR-2/TR-3, ATR, TCM), and remote control selector/latching switch relays (CSR, TD-CSR, SCSR, SLSR) with SCADA communication capabilities; and the Industrial/Military Switches division providing detent-action, snap-action, and cam-action rotary switches. The company also offers ARGA Battery Monitors and Meters (Series 1000) for substation and portable battery monitoring, and acquired E-MAX Instruments in March 2026 for substation monitoring systems.

Differentiator

Problem solved

Functional benefit

Brands

• E-MAX Instruments: Control and monitoring solutions for electrical substation equipment including Surveyor Portable, Battery Voltage Relay, RAW-1 Trip Circuit Monitor, and Trip Indication Relays. Acquired March 2026 and operates as a brand within Electro Switch.
• ARGA Battery Monitors

Products and services

• Lock-Out Relays (Series 24, Type WL, Type WL-2, Series 24 LOR-SR) Manual reset, electric-reset, self-resetting, and 2-position lock-out relays used for personal protection and breaker trip coil protection in utility substations and industrial power systems. Available with LED target indication, SCADA feedback, and serial communications for remote reset.
• Manual Standard Instrument and Control Switches (Series 24, Series 24 Lighted, Series 31, Series 31A, Type W-2, Type W) Detent-action rotary switches for utility instrument and control applications, including make-before-break shorting contacts, multi-deck configurations, LED indication, and four-hole or single-hole mounting designs rated up to 15A at 600V.
• Tagging and Annunciator Relays (Series 24 TR-2, Series 31 TR-2, Series 31 TR-3, Series 24 ATR, Series 24 TCM, Series 24 3-Phase TCM) Personnel protection tagging relays with up to 60mSec response time and NESC Tag-Out functionality, plus annunciator and trip coil monitoring relays with bright LED targets, field-replaceable indicators, and SCADA alarm integration for substation fault detection.
• Remote Control, Selector and Latching Switch Relays (Series 24 CSR, TD-CSR, SCSR, SLSR, LSR, SSR, Series 31 LSR) Relays combining manual and remote supervisory control functions for circuit breaker management, including arc flash protection relays with programmable 10-second delay, DNP 3.0/Modbus serial communications, and IRIG-B time synchronization input.
• Utility Cam-Action Rotary Switches (Series 20, Series 20P) Cam-action rotary switches designed for utility applications requiring make-before-break and break-before-make switching configurations.
• Industrial Switches (Detent-Action Series 21/24/25/28/31/31A; Snap-Action Series 101/103/105/107; Cam-Action KW12/KW16/KW20/KW25/KW32/KW40/KW63/KW100/KW200/KW400/KW600/KW800) Detent-action, snap-action, and cam-action rotary switches for industrial machinery, motor control, power factor correction, and equipment switching applications, meeting UL/CSA requirements and supporting high-current ratings.
• Military Switches (Type AF, Series 24G, Style SJK, SJL, SJM, SJR, Class 1SR, 3SR, 6SR, 20SR) Detent-action and snap-action rotary switches designed and qualified for military and defense applications including submarines, locomotives, and military ground vehicles, meeting stringent MIL-spec shock and vibration requirements.
• ARGA Battery Monitor Series 1000 (Substation Monitor and Portable Unit) Real-time utility substation battery monitoring systems with voltage, current, and internal resistance monitoring, featuring 4-20mA analog output, RS485 DNP3.0/Modbus communications, audible ground fault and Hi/Low VDC alarms, and a portable variant for field testing.
• E-MAX Instruments Substation Monitoring Systems (Surveyor Portable, Battery Voltage Relay, RAW-1 Trip Circuit Monitor, Trip Indication Relays) Control and monitoring solutions for electrical substation equipment, including battery voltage relays, trip circuit monitors, trip indication relays, and the Surveyor Portable unit, acquired to complement the ARGA battery monitoring product line.

Quantifiable outcome

• LED indication lifespan exceeds 100,000 hours on ATR Annunciator Target Relay
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• E-MAX Instruments, Inc.coreStrategic or Co-development Partner · 20 March 2026Electro Switch Corp. acquired E-MAX Instruments, Inc. (founded in 1975), a provider of control and monitoring solutions for electrical substation equipment. E-MAX operates as a brand within Electro Switch's Power Switches & Relays business, expanding the company's mission-critical substation panel componentry offerings for utility, data center, and critical infrastructure markets. E-MAX continues to serve customers nationally and internationally under the Electro Switch umbrella.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Beckwith Electric: Beckwith Electric specializes in protection and control relays, capacitor controls, and transformer monitoring for electric utilities. It is a direct peer in the utility-grade relay and substation monitoring category where Electroswitch competes.
• Schweitzer Engineering Laboratories (SEL): SEL is a leading manufacturer of utility-grade protection relays, automation, and monitoring products for electric power systems. It directly competes with Electroswitch in utility substation panel protection, lock-out/control switch relays, and battery monitoring.
• S&C Electric Company: S&C Electric manufactures switching and protection equipment for electric utilities, including switches, fuses, and intelligent substation solutions. It competes with Electroswitch in utility switchgear-adjacent applications and substation panel componentry.
• Powell Industries: Powell Industries manufactures metal-clad switchgear, power distribution equipment, and related electrical products for utilities and industrial markets. It is a direct peer in switchgear and power distribution control products where Electroswitch's relays and switches are specified.

Broad incumbents

• Eaton: Eaton is a large diversified power management company offering switchgear, relays, and industrial controls. It is a broad incumbent whose electrical Americas business competes directly with Electroswitch in utility and industrial switchgear-adjacent products.
• Schneider Electric: Schneider Electric provides energy management and automation solutions, including medium-voltage switchgear and protection relays. It is a broad incumbent that overlaps with Electroswitch's industrial and utility switching products.
• Hubbell: Hubbell is a diversified electrical products manufacturer serving utility, industrial, and commercial markets with switches, connectors, and substation products. It is a broad incumbent that overlaps with Electroswitch's industrial and utility rotary switch portfolio.
• ABB: ABB is a global leader in electrification, motion, and automation, offering switchgear, protection relays, and substation solutions. It is a broad incumbent that competes with Electroswitch across utility, industrial, and data center end markets.
• GE Vernova: GE Vernova's Grid Solutions business provides protection relays, switchgear, and substation automation products. It is a broad incumbent whose utility-grade relays and monitoring overlap with Electroswitch's Series 24 and ARGA product lines.
• Siemens: Siemens Smart Infrastructure offers protection relays, switchgear, and substation automation products globally. It is a broad incumbent competing with Electroswitch in utility-grade switching and protection, particularly for larger specifications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/electroswitch-corp

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A2 records

Investments

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

Frequently asked questions about Electroswitch