We’re JENNMAR, a global, family-owned company that is leading the way in ground control technology for the mining, tunneling and civil construction industries. Since 1972 our mission has been focused on developing and manufacturing quality ground control products. Today we make a broad range of reliable products, from bolts and beams, to channels and trusses, to resin and rebar. We’re proud to make products that make the industries we serve safer and more efficient. And with more than twenty manufacturing plants around the world, we are uniquely positioned to react to ground control needs anywhere, anytime. 

We're a single source provider!
Our network of affiliates includes engineering services, resin and rolled-steel manufacturing, custom steel fabrication, roof, miner and specialty bits, chemical roof support and sealing products, and even includes our own trucking company. This ability to provide a complete range of complementary products and services ensures quality, efficiency and availability resulting in reduced costs, reduced lead times and increased customer satisfaction!

JENNMAR continues to grow, but our focus will always be on the customer. We feel it is essential to develop a close working relationship with every customer so we can understand their unique challenges and ensure superior customer service. Our commitment to the customer is guided by three words; SAFETY, SERVICE and INNOVATION. It’s these words that form the foundation of our business. 
It’s who we are.

Mining

Manufacturing

Construction

JENNMAR

JENNMAR's headquarters in Pittsburgh, United States

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Michael Portwood

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