High Voltage Maintenance Corporation

What High Voltage Maintenance Corporation does

High Voltage Maintenance Corporation (HVM) is a NETA-accredited electrical testing, maintenance, and engineering services provider founded in 1967 and headquartered at 5100 Energy Drive, Dayton, Ohio. The company operates as a wholly-owned subsidiary of Vertiv Group Corporation (formerly Emerson Network Power) and delivers 24/7 field service coverage to enterprise customers across the Midwest and New England regions of the United States, serving utilities, data centers, renewable energy (wind, solar, BESS), commercial and industrial facilities, EV infrastructure, water and wastewater operators, and higher education and research institutions.

The core technical offering is independent third-party acceptance testing, preventive and predictive maintenance, transformer services, arc flash analysis, protection and controls testing, NERC compliance, and battery/DC power services supported by NETA Level 3 and 4 certified technicians and registered professional engineers. Differentiated capabilities include a custom-engineered Mobile DC Power Services unit for NERC-required DC system maintenance and Battery Remote Monitoring that continuously tracks cell voltage, string voltage, current, and temperature to enable proactive battery replacement. HVM is a founding member of InterNational Electrical Testing Association (NETA) and participates in NFPA, IEEE, and ASHRAE standards development, anchoring its positioning in regulatory and compliance-driven work.

Revenue is generated through professional services contracts — both project-based engagements and recurring multi-year maintenance programs — sold via direct field sales and engineering teams. Pricing is quote-based and not publicly disclosed, with engagement scope tied to facility requirements and service frequency. Distribution is exclusively direct (no channel partners, resellers, or digital self-service), and demand generation relies on thought-leadership content (Keeping Current podcast, The Live Wire blog), industry events, customer case studies, and LinkedIn presence aimed at facility managers, plant engineers, and operations leaders in critical infrastructure industries. The company has earned the National Safety Council Perfect Record Award in 2024, 2023, and 2021, operating as an active, revenue-generating subsidiary within Vertiv's electrical reliability services portfolio.

Name

High Voltage Maintenance Corporation

Legal name

High Voltage Maintenance Corporation

Website

https://hvmcorp.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

51–100 employees

Short description

High Voltage Maintenance Corporation is a NETA-accredited electrical testing, maintenance, and engineering services company that delivers 24/7 field services to enterprise customers in utilities, data centers, renewable energy, and industrial sectors across the Midwest and New England, and is a wholly-owned subsidiary of Vertiv Group Corporation.

Ownership category

akta.pro rank

Product category

Electrical Testing and Maintenance Services

NAICS

Electronic and Precision Equipment Repair and Maintenance (81121), Electric Power Transmission, Control, and Distribution (22112), Facilities Support Services (561210)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Distribution Grid Asset Management (MV/LV) (EUAEAMAD)

akta.pro secondary industries

Electrical Systems Maintenance (LV/MV, Switchgear, UPS) (BPABACAC), Critical Power & Backup Systems Maintenance (Generators, ATS, Batteries) (BPABACAF)

Keywords

• Electrical testing services
• Power system maintenance
• NERC compliance services
• Arc flash analysis
• Transformer maintenance services

Headquarters

HQ city

Wallingford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electrical Testing and Maintenance Services: HVM generates revenue through professional services contracts for electrical testing, maintenance, and engineering services. Services include acceptance testing, maintenance testing (preventive and predictive), emergency services, training, and NFPA 70B compliance support. Revenue is derived from project-based engagements and recurring maintenance contracts for critical electrical infrastructure across utilities, data centers, and industrial facilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

High Voltage Maintenance Corporation (HVM) is a NETA-accredited electrical testing, maintenance, and engineering services provider delivering acceptance testing, maintenance testing, preventive and predictive maintenance, transformer services, arc flash analysis, NERC compliance solutions, DC power services, and emergency response for critical power infrastructure. The company serves utilities, data centers, renewable energy facilities, and industrial customers across the Midwest and New England regions of the United States with 24/7 field service coverage.

Product overview

High Voltage Maintenance Corporation is an electrical testing and maintenance services company offering a comprehensive portfolio of services rather than a unified software platform. The core offerings include Acceptance Testing and Maintenance Testing services for electrical equipment verification, complemented by Preventive Maintenance and Predictive Maintenance programs. Supporting services include Transformer Maintenance, Engineering Services, Arc Flash Services, Single Line Diagrams, Protection & Controls, and Relay Upgrades. The company provides NERC Compliance solutions and DC Power Services including Mobile DC Power Services for uninterrupted power during maintenance. Industry-specific solutions span BESS Services, Data Center Services, EV Infrastructure Services, Utilities Services, Wind & Solar Services, and Water & Wastewater Services. Additional offerings include Complex Project Management, Emergency Services available 24/7, Training Services with IACET-certified programs, and NFPA 70B Support Services. Content resources include the Keeping Current Podcast and The Live Wire Blog. Field Evaluation Services are delivered through eti Conformity Services. The company operates as a NETA-accredited testing services provider serving utilities, data centers, renewable energy, and commercial/industrial sectors across the Midwest and New England regions of the U.S.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Nearly 70 percent of early electrical equipment failures can be traced to power system design, installation, or startup deficiencies
• +3 more outcomes

Named customers12 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• ETI Conformity ServicesminorOthersETI Conformity Services provides field evaluation services for electrical equipment, including field evaluations for new or modified equipment, renewable energy services, and code compliance evaluations. HVM provides a link to ETI Conformity Services on its website, indicating a referral relationship for field evaluation needs that may arise in conjunction with HVM's testing and maintenance services.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Shermco Industries: Shermco is one of the largest independent NETA-accredited electrical testing, maintenance, and engineering services firms in North America. It competes head-to-head with HVM across acceptance testing, maintenance testing, and arc flash services for utility, industrial, and data center customers, with a broader national service footprint.
• Electrical Reliability Services (ERS): ERS is a sister company to HVM within the Vertiv portfolio, offering similar NETA-certified electrical testing, acceptance testing, and reliability services. It operates as a near-clone competitor with overlapping customer bases in industrial, data center, and utility segments, and jointly produces the Keeping Current podcast with HVM.
• Magna IV Engineering: Magna IV is a North American electrical engineering, testing, and maintenance services firm with NETA-certified technicians and field service capabilities. It serves oil & gas, utility, mining, and industrial customers with acceptance testing, predictive maintenance, and arc flash services — closely aligned with HVM's service portfolio though focused on Western Canada/US geographies.

Broad incumbents

• Vertiv Group Corporation: Vertiv is the publicly traded parent company of HVM and a global provider of critical digital infrastructure spanning power, thermal, and IT management solutions. Vertiv's services division operates adjacent field service capabilities for data center and telecom customers, making it both the parent and a broader market incumbent.
• Eaton: Eaton is a global power management company offering electrical components, power distribution equipment, and field services for industrial, data center, and utility customers. Its electrical services and Engineering Services & Systems Division overlaps with HVM's testing, maintenance, and power system studies capabilities.
• Schneider Electric: Schneider Electric is a global energy management and automation leader with a broad field services organization serving data centers, utilities, and industrial customers. Its EcoStruxure service offerings and electrical distribution equipment services overlap materially with HVM's NETA-certified testing and reliability services.
• ABB: ABB is a global electrification, motion, and automation company providing products, systems, and services for utilities, industries, and infrastructure. Its Electrification Service division delivers installation, testing, and maintenance of power distribution equipment, directly comparable to HVM's MV/LV switchgear and transformer service portfolio.
• Siemens: Siemens is a global technology company with Smart Infrastructure and electrification service lines providing commissioning, testing, and maintenance for power distribution and building systems. Its services portfolio competes with HVM for electrical reliability work at data centers, industrial facilities, and utility customers.

Regional players

• Asplundh Infrastructure Group: Asplundh is a privately held utility infrastructure services firm specializing in tree trimming, line construction, and equipment testing/maintenance for electric utilities. Its utility-focused field services capability overlaps with HVM's utility-side testing and NERC compliance work, though its geographic emphasis on East Coast and tree-canopy management differs.

Others

• Megger: Megger is a global manufacturer of electrical test and measurement instruments used for power cable testing, transformer diagnostics, and protective relay testing. While not a direct services competitor, Megger is an enabling ecosystem participant whose equipment (including the Albér brand used by HVM) underpins the NETA testing workflows that HVM monetizes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/high-voltage-maintenance-corporation
• Facebookfacebook.com/emersoncorporate

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 High Voltage Maintenance Corporation