Hi-Line Utility Supply

What Hi-Line Utility Supply does

Hi-Line Utility Supply, founded in 1960 and headquartered in Gilberts, Illinois, is a specialized B2B utility supply and safety services provider focused on dielectric testing and certification for utility workers handling high-voltage equipment. The company's core offerings include managed rubber goods testing services (covering dielectric rubber gloves, sleeves, blankets, line hoses, hoods, and boots) and custom grounds and jumpers assembly and testing, all performed in accordance with ASTM and OSHA standards with additional NAIL accreditation for PET (Personal Equipment Testing). Its primary customer segment is North American public power utilities, with secondary reach to individual utility workers and linemen who require recurring certified safety equipment.

The business operates on a quote-based B2B model with direct sales engagement through account representatives and technical specialists, serving enterprise utility buyers across the USA. Distribution and go-to-market rely on direct customer contact, website inquiry forms, and email newsletter engagement, rather than transactional or self-serve channels. Hi-Line's value proposition centers on regulatory compliance, certified testing accuracy, and rapid custom assembly of grounds and jumpers from a fully stocked warehouse.

In 2023, Hi-Line Utility Supply was acquired by Wesco International (NYSE: WCC) and rebranded under the Wesco name. The integration maintained existing legal entities and contractual agreements while providing customers access to Wesco's broader supply chain services portfolio spanning automation, electrical, communications, MRO and safety, power generation and distribution, and security solutions. The transition did not change underlying service operations but expanded the strategic reach of the dielectric testing capability across Wesco's North American utility and broadband customer base.

Name

Hi-Line Utility Supply

Legal name

Hi-Line Utility Supply

Website

https://hilineco.com

Company type

Private

Founded year

1960

Operating status

Acquired

Headcount range

5,001–10,000 employees

Short description

Hi-Line Utility Supply, founded in 1960 and now operating under Wesco International, provides dielectric testing, rubber goods certification, and custom grounds and jumpers assembly services for North American public power utilities and utility workers in compliance with ASTM/OSHA standards.

Ownership category

akta.pro rank

Product category

Dielectric Testing Services

NAICS

Testing Laboratories and Services (541380)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO) (EUAEAHAN)

akta.pro secondary industry

Protective & Work Accessories Manufacturing (Safety Gloves/Hi-Vis Accessories) (IMAOAFAH)

Keywords

• Dielectric testing services
• Rubber goods testing
• Utility safety equipment
• Grounds and jumpers
• Personal protective equipment

Headquarters

HQ city

Gilberts

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure

Distribution channels1 record

Marketing channels2 records

Core offering

Hi-Line Utility Supply provides dielectric testing services for utility safety equipment, including managed rubber goods testing (gloves, sleeves, blankets, line hoses, hoods, and boots) and assembly/repair of custom grounds and jumpers. Services are performed in accordance with ASTM/OSHA standards with NAIL accreditation for PET. The company has been acquired by Wesco International and is transitioning its brand to Wesco.

Product overview

Hi-Line Utility Supply, now operating under the Wesco brand, provides utility supply solutions focused on dielectric testing and safety services for utility workers. The core offerings include Rubber Goods Testing (managed safety services for dielectric rubber gloves, sleeves, blankets, line hoses, hoods, and boots) and Grounds and Jumpers (repair and testing programs for custom grounds and jumpers). These services are performed in accordance with ASTM/OSHA standards with NAIL accreditation for PET. The transition to Wesco enables access to Wesco's broader portfolio including Automation, Communications and Networking, Data Center, Electrical and Lighting, Energy Management and Renewables, MRO and Safety, Power Generation and Distribution, and Security solutions, supported by end-to-end supply chain services.

Differentiator

Problem solved

Functional benefit

Products and services

• Rubber Goods Testing Managed safety services for dielectric rubber gloves, sleeves, blankets, line hoses, hoods, and boots performed in accordance with ASTM/OSHA standards, with additional accreditation by NAIL for PET. Intended for utility workers and linemen handling high-voltage equipment.
• Grounds and Jumpers Repair and testing programs for grounds and jumpers meeting individual customer requirements or future ASTM standards. Includes assembly, quality testing, and quick delivery from a fully stocked warehouse with all components and tools required to build custom grounds and jumpers.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Recent moves4 records

Expansion highlights4 records

Others

• NASI (North American Substation Inspections / Safety Testing Providers): North American substation and utility safety testing providers offer third-party certified testing services for utilities, including dielectric and protective equipment testing. They are comparable as ecosystem participants offering adjacent testing/certification services under similar ASTM/OSHA/NAIL frameworks used by Hi-Line.

Direct peers

• Ansell Limited: Ansell is a global manufacturer of protective gloves and apparel, including electrical/dielectric gloves for utility workers. It is directly comparable to Hi-Line because Ansell produces the dielectric rubber goods that Hi-Line tests, serves the same utility safety customer base, and shares the same ASTM/OSHA compliance framework.
• Brady Corporation: Brady Corporation supplies workplace safety, identification, and utility/compliance products and services. It is comparable to Hi-Line because it provides safety solutions and related services to utility and industrial customers with similar regulatory-driven demand drivers.

Broad incumbents

• Grainger: Grainger is a broad-line industrial MRO and safety distributor serving utilities and industrial customers across North America. It is comparable as a wide-portfolio competitor that distributes safety/PPE products to the same utility customer base, even though it does not specialize in dielectric testing services.
• Hubbell Incorporated: Hubbell is a major manufacturer of electrical utility products including connectors, switches, and related safety/accessory products. It is comparable as a deep utility-sector incumbent whose installed base drives safety/PPE demand served by Hi-Line and similar safety service providers.
• MSA Safety Incorporated: MSA Safety manufactures safety equipment and personal protective equipment used in utility, industrial, and first-responder markets. It is comparable as an established safety equipment incumbent serving overlapping utility worker end-customers with regulated, compliance-tested products.
• Honeywell PPE: Honeywell's Personal Protective Equipment division offers safety products including head-to-toe PPE for utility and industrial workers. It is comparable to Hi-Line as an established safety incumbent serving utility workers with PPE, competing indirectly for the same testing/certification-linked business.
• 3M Safety & Industrial: 3M's Safety & Industrial business supplies PPE and worker safety solutions across industrial and utility end markets. It is comparable as a broad-line safety incumbent whose products are subject to the same ASTM/OSHA compliance testing services that Hi-Line provides.

Emerging players

• OMICRON Electronics: OMICRON specializes in electrical testing, diagnostics, and monitoring solutions for power utilities, with overlap into PPE and safety-related testing categories. It is comparable as a focused electrical testing specialist serving utilities, partially overlapping with Hi-Line's dielectric and protective equipment testing scope.
• Megger Group: Megger manufactures electrical testing instruments used in cable, transformer, and protective equipment testing. It is comparable as a player in the electrical/dielectric testing ecosystem whose instruments are used in utility safety testing workflows similar to Hi-Line's rubber goods and grounds testing programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/hilineco
• Facebookfacebook.com/hilineco
• LinkedInlinkedin.com/company/hi-line-utility-supply

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Hi-Line Utility Supply