The H-J Family of Companies

The H-J Family of Companies Global manufacturer and supplier of transformer, switchgear, and breaker components and hardware - S Louis, Missouri, USA. company.

The H-J Family of Companies is a worldwide manufacturer and supplier in the transformer, switchgear, and breaker industry. Starting in 1969 with only 800 square feet and a few machines, we have grown through the years to over 400 employees and over 350,000 square feet of manufacturing space. We currently have offices in Brazil, Canada, China, Colombia, India, Mexico, Spain, and our headquarters in

St. Over the years we have added tin-plating lines and one of the highest tech foundries in the world. H-J has taken the next step in its extensive customer support program with the development of an independent high voltage test laboratory. This allows us to further advance our product offerings through high quality research and development. H-J is the leading manufacturer of distribution transformer bushings and connectors in the United States. H-J covers a broad range of products and utilizes state of the art manufacturing. Our expertise includes custom engineered products in epoxy, porcelain, and non-ferrous castings such as brass, bronze, and aluminum. H-J is one of the leading manufacturers and suppliers of transformer and switchgear components for the world market. H-J supplies products such as porcelain and epoxy bushings, distribution and power transformer components, breakers, drain valves, fuses, aluminum and copper strip, electrical connectors, fuses, insulating oils and many other products. H-J is among the world's largest users and suppliers of porcelain for the electrical industry. Applications include: transformer bushings, station post insulators, standoff insulators, hollow insulators for instrument transformers, wall bushings, custom designs and many others. H-J also provides innovative engineering solutions including molded bushing assemblies, breaker bushings, terminal blocks, wall bushings, roof bushings, insulators, transformer LV bushings, disconnect bushings, connectors, isolated phase bus duct, bus supports, core support blocks and more. H-J owns and operates an import-export company located in the export zone of Tianjin, China. Tianjin is strategically located near Beijing and a major ocean port is within a few minutes drive. The trading office was created to assist companies tapping into the ever more important Chinese market while still dealing with a U.S. The H-J Test Lab can provide test services for its entire spectrum of customers, including Utilities, OEM’s, Repair Shops, Universities and others. The laboratory is located in St. Louis, Missouri, adjacent to the Company’s manufacturing facilities. The floor space of the lab is 100 x 100 feet with a ceiling-to-floor clearance of 50 feet, thus accommodating small to large sized equipment. We at H-J thank you for the interest shown in our products. The H-J Family of Companies has built its reputation on providing our customers the best possible service, quality, and price. We strive to exceed all of your expectations. If you do not find what you need in our online catalog, please call and speak to one of our sales representatives. Contact our sales team at +1 636-677-3421 or [email protected] if you have any questions or for more information. Specialties:
Engineering services, Electrical products, Transformer components, Circuit breaker components, Customer service, Customer partnerships, Local presence and service

Detroit next week.Stand G20.Let’s talk. ⚡🦅
06/04/2026

Detroit next week.

Stand G20.

Let’s talk. ⚡🦅

Final day at Expo Eléctrica International 2026 ⚡A huge thank you to everyone who stopped by our booth and connected with...
05/28/2026

Final day at Expo Eléctrica International 2026 ⚡

A huge thank you to everyone who stopped by our booth and connected with the HJ team this week!

It was a pleasure connecting with so many professionals, partners, and attendees throughout the week.

Day 2 ⚡More conversations. More connections. More momentum. Thank you to everyone who has stopped by so far! ⚙️ Stand 13...
05/27/2026

Day 2 ⚡
More conversations. More connections. More momentum.

Thank you to everyone who has stopped by so far!

⚙️ Stand 1334

Day 1 is underway at Expo Eléctrica 2026⚡Booth ready. Energy on.⚙️Stand 1334
05/26/2026

Day 1 is underway at Expo Eléctrica 2026⚡
Booth ready. Energy on.

⚙️Stand 1334

On this Memorial Day, we honor the courage, sacrifice, and service of the men and women who gave their lives for our cou...
05/25/2026

On this Memorial Day, we honor the courage, sacrifice, and service of the men and women who gave their lives for our country.

From all of us at The H-J Family of Companies, thank you and have a safe and meaningful Memorial Day. 🇺🇸

Only 3 days to go until Expo Eléctrica Internacional ⚡Mexico City, we’re coming 🇲🇽🗓️ May 26–28🔌 Stand 1334From power sol...
05/23/2026

Only 3 days to go until Expo Eléctrica Internacional ⚡

Mexico City, we’re coming 🇲🇽

🗓️ May 26–28
🔌 Stand 1334

From power solutions to manufacturing innovation, we’re excited to showcase what’s next and connect with the electrical industry’s leading professionals.

See you at the show!

What a week at CWIEME Berlin 2026 ⚡Thank you to everyone who stopped by Stand 27B30 and connected with our team over the...
05/21/2026

What a week at CWIEME Berlin 2026 ⚡

Thank you to everyone who stopped by Stand 27B30 and connected with our team over the past few days.

We truly appreciated the conversations, new connections, and opportunity to be part of another incredible event for the electrical manufacturing industry.

We’re leaving Berlin inspired and excited for what’s ahead. 🦅

Next stop: Mexico City! 🇲🇽⚡

IndustrialSolutions

05/21/2026
Next stop: Expo Eléctrica Internacional 2026 🇲🇽⚡Just 1 week to go until we join the industry in Santa Fe, Mexico City fr...
05/19/2026

Next stop: Expo Eléctrica Internacional 2026 🇲🇽⚡

Just 1 week to go until we join the industry in Santa Fe, Mexico City from May 26–28!

Stop by Stand 1334 to meet the team and explore what’s next in electrical manufacturing. ⚙️

Address

3010 High Ridge Boulevard
High Ridge, MO
63049

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

Telephone

+16366773421

Website

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