The H-J Family of Companies
The H-J Family of Companies is a family-owned, U.S.-based manufacturer since 1969 producing transformer and switchgear components, core processing and brazing equipment, raw materials, and related services for transformer OEMs, switchgear OEMs, utilities, and EPC firms worldwide.
- Company typePrivate
- Founded1969
- HeadquartersHigh Ridge, United States
- Headcount501–1,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What The H-J Family of Companies does
The H-J Family of Companies, founded in 1969 and headquartered in High Ridge, Missouri, is a privately held, family-owned manufacturer and supplier serving the global transformer, switchgear, and breaker industry through two Missouri-incorporated legal entities (H-J International, Inc. and H-J Enterprises, Inc.). The company operates with 501–1,000 employees and runs a diversified manufacturing footprint spanning metal casting, epoxy formulation, and precision mechanical equipment production, with ISO 9001:2015 quality management certification covering both Missouri and Mexico operations.
Its product architecture is organized into seven solution categories: Bushing & Connection Solutions (integrated bushings meeting ANSI/IEEE Standard 386, test terminals, copper/aluminum connectors, spades, eyebolts, lead blocks, set screw bars), Insulator Solutions, Protection Solutions, Switching Solutions, Productivity Solutions for Transformer OEMs (core processing equipment including Unicore and wounded core cutting machines with 500+ units installed worldwide, brazing and welding systems such as the OxyHydrogen 30000HD generator, bussbar processing equipment, and customer care services), Raw Material Solutions (aluminum and copper conductors, amorphous cores, fluids, insulator paper), and Valves, Hardware & Labels Solutions. A dedicated services business covers maintenance, consulting, testing, commissioning, training, troubleshooting, retrofits, spare parts, and remote assistance.
The commercial model is consultative, direct B2B sales with quote-based pricing, targeting transformer OEMs, switchgear OEMs, utilities, EPC firms, and the forgings & castings industry. Revenue is generated through four streams: transformer component sales, manufacturing equipment sales, professional services (including spare parts and retrofits), and raw material supply. Marketing is executed through trade shows (e.g., Middle East Energy Dubai 2026), social media, email newsletters, and content resources, while distribution relies on direct sales complemented by a named network of valued partners including Hubbell, Mersen, ERMCO, Central Moloney, and Richards Manufacturing.
The H-J Family of Companies firmographics
Firmographics- Name
- The H-J Family of Companies
- Legal name
- H-J International, Inc. and H-J Enterprises, Inc.
- Website
- https://h-j.com
- Company type
- Private
- Founded year
- 1969
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- The H-J Family of Companies is a family-owned, U.S.-based manufacturer since 1969 producing transformer and switchgear components, core processing and brazing equipment, raw materials, and related services for transformer OEMs, switchgear OEMs, utilities, and EPC firms worldwide.
- Ownership category
- akta.pro rank
The H-J Family of Companies industry classification
Industry- Product category
- Transformer & Switchgear Components
- NAICS
- Power, Distribution, and Specialty Transformer Manufacturing (335311), Switchgear and Switchboard Apparatus Manufacturing (335313), Electrical Equipment Manufacturing (33531)
- SIC
- Power, Distribution & Specialty Transformers (3612), Switchgear & Switchboard Apparatus (3613), Miscellaneous Electrical Machinery, Equipment & Supplies (3690)
- akta.pro primary industry
- Transmission & Distribution Line Equipment (Bushings, Insulators, Arresters, Conductors, Hardware) (IMAGAAAF)
Keywords
Where The H-J Family of Companies is headquartered
LocationHeadquarters
- HQ city
- High Ridge
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
The H-J Family of Companies business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Transformer Components Sales: Sale of bushings, connectors, insulators, switches, and other transformer and switchgear components
- Manufacturing Equipment Sales: Sale of core processing equipment, bussbar processing equipment, brazing and welding systems, and associated machinery for transformer OEMs
- Services: Maintenance, consulting, testing services, customer care including spare parts, retrofits, remote assistance, and field services
- Raw Material Solutions: Supply of aluminum and copper conductors, amorphous cores, fluids, and electrical insulator paper
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Custom quote-based pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels5 records
The H-J Family of Companies product offering
Product offeringCore offering
The H-J Family of Companies manufactures and supplies components, equipment, and raw materials for the transformer, switchgear, and breaker industry. Its portfolio includes bushings and connection solutions, integrated bushings, terminals, connectors, core processing equipment, brazing and welding systems, bussbar processing equipment, and raw materials such as conductors and amorphous cores. The company also provides customer care services including field services, maintenance, retrofits, remote assistance, commissioning, training, troubleshooting, and spare parts for transformer OEM machinery.
Product overview
The H-J Family of Companies is a worldwide manufacturer and supplier in the transformer, switchgear, and breaker industry since 1969. The company operates as a diversified manufacturing organization offering both products and services for the power industry. Its product portfolio includes bushings and connection solutions (integrated bushings, test terminals, connectors, spades, eyebolts, lead blocks, set screw bars), insulator solutions (standoff and thru-wall window bushings), protection solutions (electrical and mechanical), switching solutions (switches and tap changers), productivity solutions for transformer OEMs (core processing equipment including Unicore core machines, wounded/stacked core cutting machines, core presses, testing stations; brazing and welding systems including oxygen-hydrogen generators; bussbar processing equipment), raw material solutions (conductors, amorphous cores, fluids, insulator paper), and valves/hardware/labels solutions. The company provides comprehensive customer care services including field services, spare parts, retrofits, remote assistance, commissioning, maintenance, training, and troubleshooting. A Fuse Breaker Coordination Tool is also offered for transformer design applications. The product architecture is organized around solution categories rather than a unified software platform, with each category containing specific product lines and associated services.
Differentiator
Problem solved
Functional benefit
Products and services
- Deadbreak - Integrated Bushings Integrated bushings meeting ANSI/IEEE Standard 386 Separable Insulated Connector Systems requirements, designed for pad-mounted transformers, switchgear and other apparatus filled with transformer oil. Available in 200, 600 and 900 A configurations.
- Epoxy High Voltage Bushing 15kV HV bushing for pole-mounted transformers featuring USA-sourced raw materials, high-strength glass-filled polymer nut, H-J cycloaliphatic epoxy rated for full outdoor UV exposure, V0 flammability rating, and one-piece homogenous casting with superior dielectric strength. Lighter than porcelain alternatives.
- Test Terminals Bushing test terminals designed to allow isolation of electrical equipment for test purposes without disconnecting the bushing from the circuit. Compatible with transformers, circuit breakers, and similar apparatus.
- Copper & Aluminum Connectors Connectors designed to join wires of different cross-sections, shapes, and materials. Compatible with enamelled copper or aluminium wires, profile or round wires, suitable for single-strand and multi-strand uninsulated wires.
- Spades Spade terminals offered in various lengths, widths and thicknesses. Standards range from 2 holes up to 20 holes, with in-line or G spade styles, with or without tangs, available in imperial or metric dimensions.
Companies that use The H-J Family of Companies
Customer profileNamed customers6 records
Segments6 records
Ideal customer profiles4 records
The H-J Family of Companies technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
The H-J Family of Companies partnerships and signals
Strategic signalPartnerships
14 partnerships are on record, tiered minor.
- AEMminorElectrical equipment partner listed as valued partner
- Central Moloney IncorporatedminorTransformer manufacturer listed as valued partner
- ERMCO Distribution TransformersminorDistribution transformer manufacturer listed as valued partner
- HubbellminorElectrical equipment manufacturer listed as valued partner
- MersenminorElectrical equipment manufacturer listed as valued partner
- Richards ManufacturingminorTransformer components manufacturer listed as valued partner
- Specialty Transformer ComponentsminorTransformer components supplier listed as valued partner
- DelfortminorPartner listed as valued partner
- ChardonminorPartner listed as valued partner
- JakerminorPartner listed as valued partner
- ErkominorPartner listed as valued partner
- ebm papstminorEquipment manufacturer partner listed as valued partner
- OweldminorWelding equipment partner listed as valued partner
- Art Advertising Labels & DecalsminorLabels and decals supplier listed as valued partner
Scale indicators2 records
Recent moves5 records
Expansion highlights5 records
The H-J Family of Companies competitors and assessment
Company assessmentBroad incumbents
- Hubbell: Major publicly-traded electrical equipment manufacturer with significant exposure to transformer components, connectors, bushings, and switchgear. Listed as a customer of H-J, Hubbell is a broader incumbent across the same end markets with greater scale and capital resources.
- Eaton: Global power management company with significant exposure to switchgear, transformers, and electrical components for utility and industrial customers. Broad incumbent that competes and overlaps with H-J's switchgear and transformer component portfolio.
- Siemens Energy: Major global supplier of transformers, switchgear, and grid technology serving utilities and OEMs worldwide. A broader incumbent that competes in adjacent transformer and switchgear categories where H-J operates.
- Schneider Electric: Global energy management and automation company with significant switchgear and electrical distribution portfolios. Broad incumbent overlapping with H-J's switchgear and OEM component offerings.
- ABB: Global leader in electrification, motion, and process automation with broad portfolios in transformers, switchgear, and grid solutions. A broad incumbent competing in many of H-J's end markets with significantly greater scale.
- GE Vernova: Spun-off GE business focused on power, wind, and electrification, including transformer and grid equipment offerings. Broad incumbent competing across H-J's served markets with global scale and R&D resources.
Direct peers
- Mersen: Global manufacturer of electrical components including busbars, fuses, and transformer accessories serving similar OEM and utility customers. Mersen overlaps directly with H-J's component portfolio and is also listed as a customer.
- Richards Manufacturing: Manufacturer of transformer bushings, connectors, and related components serving North American utility and OEM customers. Direct peer to H-J's bushing and connection solutions product line, and a listed H-J customer.
- ERMCO: Distribution transformer OEM that purchases components and equipment from H-J and represents the type of customer H-J serves. Operates as a direct adjacent peer in the transformer value chain.
- Central Moloney: North American transformer manufacturer and H-J customer/partner. Operates in the same distribution transformer ecosystem and uses similar transformer components and OEM productivity equipment.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
The H-J Family of Companies social profiles
Digital presenceThe H-J Family of Companies compliance and trust
Trust signalCompliance3 records
The H-J Family of Companies financial estimates
Financial estimateRevenue estimate
Valuation estimate
The H-J Family of Companies leadership team
Management profileNumber of profiles
The H-J Family of Companies funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
The H-J Family of Companies M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about The H-J Family of Companies
What does The H-J Family of Companies do?
The H-J Family of Companies manufactures and supplies components, equipment, and raw materials for the transformer, switchgear, and breaker industry. Its portfolio includes bushings and connection solutions, integrated bushings, terminals, connectors, core processing equipment, brazing and welding systems, bussbar processing equipment, and raw materials such as conductors and amorphous cores. The company also provides customer care services including field services, maintenance, retrofits, remote assistance, commissioning, training, troubleshooting, and spare parts for transformer OEM machinery.
Is The H-J Family of Companies a public or private company?
The H-J Family of Companies is a private company. It is classified as family owned and is currently operating.
When was The H-J Family of Companies founded?
The H-J Family of Companies was founded in 1969. It employs 501 to 1,000 people.
Where is The H-J Family of Companies based?
The H-J Family of Companies is headquartered in High Ridge, United States, in the North America region.
How does The H-J Family of Companies make money?
Four revenue lines are on record. Transformer Components Sales are the primary driver. The others are manufacturing Equipment Sales, services and raw Material Solutions.
Who are The H-J Family of Companies's main competitors?
Broad incumbents on record are Hubbell, Eaton, Siemens Energy, Schneider Electric, ABB and GE Vernova. Direct peers are Mersen, Richards Manufacturing, ERMCO and Central Moloney.
Does The H-J Family of Companies have an API?
No public API is recorded for The H-J Family of Companies.
What industry is The H-J Family of Companies in?
The H-J Family of Companies's product category is Transformer & Switchgear Components. Its primary akta.pro industry code is IMAGAAAF, Transmission & Distribution Line Equipment (Bushings, Insulators, Arresters, Conductors, Hardware). Its NAICS code is 335311 and its SIC code is 3612.