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About Us

Allied Group is a worldwide leader in the manufacturing and distribution of critical application fittings, flanges, valves, pipe and related products.


Allied combines world-class distribution and manufacturing capabilities with a substantial commitment to managed inventory levels to meet the demand of leading oil and gas, chemical, nuclear, energy, construction and related companies. Allied’s integration of world-class distribution and manufacturing provides superior quality to both solutions.

In every aspect of Allied operations, the unique combination of capabilities results in a more comprehensive and complete approach to meeting the needs of our customers.


Allied Group’s unique combination of distribution and manufacturing provides single-point-of-contact access to the products and services you need, when you need them. When time is critical, Allied’s distribution expertise and significant inventory delivers high quality solutions to keep your business running.

When specialized products or competitive pricing is the priority, Allied provides a direct connection to world-class manufacturing capabilities that are fully integrated into the Allied portfolio of solutions. We Distribute: Carbon fittings, flanges and forged steel; and stainless pipe, fittings, flanges and valves both approved and generic. We Manufacture: Flanges, fittings and valves through our subsidiary companies Trilad, Tectubi Raccordi, EZEFlow, Flowline and Warren Valve.

Our history

Un Compromised Commitment to the Industry


  • 1989

    Allied Fitting Corporation opens for business in Houston, TX.

  • 2004

    Acquired TecTubi

  • 2006

    TriLad is Acquired

  • 2010

    Warren Alloy Acquisition (Re branded as ALLIED STAINLESS)

  • 2016

    The Eze-Flow Group is acquired by Allied Group

  • 2018

    Interfit is Acquired

  • 2019

    Paulson Pipe is Acquired and is Re Branded as Allied Pipe

  • 2021

    DL FLange is Acquired