Founded on innovation.
And we haven't stopped since.

The Beginning

begin-imageOur company was founded in 1959 in Harvey, Illinois, where our corporate headquarters is currently located. Our original business, known as Allied Tube & Conduit, developed an in-line galvanizing technique (Flo-Coat) in which zinc is applied as tube and pipe are formed. The Flo-Coat galvanizing process, a patented technique, was the foundation for our low-cost manufacturing of fabricated metal products. In 1960, the company began operation with a single tube mill – producing half-inch electrical conduit at the unheard-of rate of two feet per second.

50 Years of Growth

Over the next 50 years, the company diversified, becoming an industry leader through growth, acquisitions and innovation. We now design and manufacture galvanized steel tubing and pipe products that include electrical conduit, fire sprinkler pipe, light gauge steel tube and fence pipe sold under the brand names Allied Tube & Conduit, FlexHead, and Tectron Tube. We also manufacture various electrical support system products including strut channel, metal framing, cable tray systems and associated fittings sold under the brand names Unistrut, Power-Strut, and Cope. We also design and manufacture pre-wired armored and metal-clad electrical cable, flexible and non-metallic conduit, PVC and HDPE cable protection products. These offerings are sold under the leading brand names AFC Cable Systems, Eastern Wire and Conduit, Kaf-Tech, and Heritage Plastics.


We now have more than 3,300 employees located on four continents. We take pride in building widely-recognized brands with leading market positions. Our employees are committed to delivering quality products to our valued customers, electrical distributors, home improvement retailers, industrial distributors, HVAC/plumbing distributors, datacom distributors, original equipment manufacturers and general contractors. In total, we serve over 50 end-markets including commercial construction, industrial, power generation, agricultural and federal, state and local governments.

And as we look to the future, Atkore remains focused on providing Electrical Raceway solutions and other complementary high value products designed specifically to meet our customers’ ever-changing needs.



  • Allied Tube & Conduit® is incorporated in Blue Island, IL.
  • We introduce Flo-Coat, the first patented “in-line” tube galvanization process.


  • We begin operation with 10 employees and one tube mill.


  • Our ranks swell to 100 employees.
  • We relocate to 110,000 sq ft facility in Harvey, IL.


  • We pioneer IMC, the first light-weight alternative to rigid conduit.


  • We form a holding company to go public.


  • Our channel framing line grows with the purchase of Power-Strut®.
  • We launch Kwik-Couple®, a time saving conduit coupling product.


  • We acquired Tyco Laboratories, Inc (Later called Tyco International).


  • We acquire Unistrut (US Division), expanding our metal framing line.


  • We acquire TJ Cope, a manufacturer of cable tray systems.


  • Our fire protection and construction line grows with the purchase of American Pipe & Tube.


  • Our Special Metal Processing Facility opens with onsite clean and pickle processing and state-of-the-art computerized tracking system.


  • We acquire AFC Cable Systems® and enter Canadian market with the acquisition of Columbia-MBF


  • We form Tyco Dinaco and expand into South America.


  • We celebrate 50 years and add 500,000 square feet to our Harvey, IL facility.


  • Tyco international announces agreement to sell majority stake in our business to the private equity firm Clayton, Dubilier & Rice. The new company is named Atkore International®.


  • Atkore International starts the year as a standalone company.


  • We acquire Flexhead® Industries, a provider of flexible fire sprinkler connections, and divest our Morrisville, PA facility and GemFab business.


  • Atkore strengthens its position in the PVC market by expanding its offering of electrical conduit, fittings, elbows, irrigation pressure and plumbing & sewer pipe with the acquisitions of Heritage Plastics™, Liberty Plastics™ and Ridgeline Manufacturing™.
  • As Atkore continues to build its Electrical Raceway portfolio, it divests a non-core business in Brazil and closes its factory in France.


  • Atkore repurchases Tyco International’s remaining stock in our company.
  • Atkore continues its focus on delivering value-added solutions for our electrical raceway customers with the acquisition of American Pipe & Plastics, a manufacturer of PVC conduit serving the telecommunications, power, cable TV and fiber optic infrastructure markets.