Our Story

It Began with Ballasts…

Keystone Technologies was founded more than 70 years ago by Marvin Spielman and Harold Fox, brothers-in-law returning home from World War II. Fluorescent lighting was just becoming a popular, energy-efficient alternative to incandescent, so the two budding entrepreneurs formed Keystone at A and Cortlandt Streets in Philadelphia with a singular focus on manufacturing ballasts and transformers. At the time, several of the lighting industry’s key fixture manufacturers called Philadelphia home: Keystone Lighting, Simkar, Crescent Lighting, Progress Lighting, and Sea Gull Lighting. Keystone quickly became a strategic supplier for their ballast and transformer needs.

And Evolved to Drivers…

With the advent of LED technology, we expanded our product offer beyond ballasts to include LED drivers. This was a natural transition for the company as drivers are similar in role and design to ballasts. Keystone was able to apply years of expertise in ballast manufacturing to quickly develop high quality drivers for a wide variety of applications.

And then to LED Modules and Light Engines…

Keystone’s business grew significantly along with the demand for LED drivers. It was not a big leap to start producing our own modules and Light Engines, which gave us the ability to customize complete LED systems to meet individual customer demands. Keystone has become a primary supplier for a variety of OEM accounts, who have diverse needs and product requirements.

LED Boards lead to LED Tubes

It wasn’t too long before a Keystone engineer slipped an LED board into a tube and Keystone’s LED lamp business was born. Keystone saw immediate success with both SmartDrive (plug & play) and DirectDrive (ballast bypass) technologies. We have established ourselves as a leading resource for an ever-growing list of LED lamp types including linear, compact and HID. LED products represent the fastest growing segment of our business and we are striving each day to bring you the latest in LED lamp technology.

What’s Next?

Now in our third generation of family leadership, Keystone is focused on the future, and continues to evolve with the changing demands of the lighting business. As our company experiences unprecedented growth, we pursue a path of leadership and quality, and remain committed to the legacy of truly personal service established when Marvin and Harold made their first sale in 1945.


Meet the Team

Ira Greenberg - CEO

Ira Greenberg

CEO

Fred Greenberg - CFO & President

Fred Greenberg

CFO & President

Jake Alpert - VP of Operations

Jake Alpert

VP of Operations

Josh Brown - VP Distributor Channel

Josh Brown

VP – Distributor Channel

Andy Joseph - VP OEM Sales

Andrew Joseph

VP – OEM Sales

Company Timeline

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1945

Keystone Transformer Co. Founded

Harold Fox and Marvin Spielman establish Keystone at A and Cortlandt Streets in Philadelphia. They focus on two things: becoming experts at manufacturing ballasts and transformers and providing outstanding service to their customers.

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1945

Original Logo

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1953

Expands product line

Expands product offering to service appliance manufacturers with integrated lighting assemblies inside appliance backsplashes.

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1962

Pennsburg, PA

Pennsburg, PA factory opens, focusing on ballast manufacturing and assembly.

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1975

Fred joins Keystone

2nd Generation of family ownership enters the company.

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1984

Trumbauersville, PA

Trumbauersville, PA factory opens specializing in metal stamping for ballast assembly.

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1985

Bold change for the 80's

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1996

Keystone introduces first line of electronic fluorescent ballasts.

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2001

Bringing back the Keystone

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2001

Ira joins Keystone

3rd Generation of family ownership enters the company.

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2002

Wholesale Market

Entered Electrical Wholesale market to service replacement market.

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2003

Keystone expands catalog

Expands product category beyond fluorescent ballasts into High Intensity Discharge ballasts.

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2003

Keystone expands to Mexico

Keystone opens first distribution center outside the USA in Monterrey, Mexico.

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2004

Energy Star Partner of the Year

Keystone's customers win Energy Star Partner of the Year, featuring Keystone electronic ballasts. Customers have since won this prestigious award over 10 times using Keystone power supplies and components.

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2005

End of an era

Keystone ships high powered T12 magnetic ballasts to fixture manufactures for the last time, ushering in the transition to energy efficient electronic ballasts.

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2007

2007 Logo

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2007

Keystone begins mass production of LED drivers.

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2012

2012 Logo

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2015

Keystone lights up Times Square

Largest sign in the world features Keystone Sign Ballasts.

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2016

United Nations

United Nations chooses Keystone LED tubes for massive lighting upgrade. Read the Case Study.

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2016

State of the Art

Keystone expands operations by moving to state of the art headquarters and distribution center in North Wales, PA.