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ISC Companies Association Affiliations

AD (Affiliated Distributors)

AD is a network of independent distributors and manufacturers of construction and industrial products that strives to facilitate growth for its members and suppliers. AD helps independent distributors to compete against national and international chains, and it works with manufacturers so they can build and protect their brands, introduce new products and diversify their channel strategy.

AD includes more than 550 independently owned members, spanning 3,605 locations, seven industries and three countries. Together, they have collective annual sales in excess of $31 billion. The organization’s member distributors may be independent, but they are also the independent market leaders within their local communities.


The PTDA (Power Transmission Distributors Association) is the leading association for the industrial power transmission/motion control (PT/MC) distribution channel. PT/MC encompasses a broad variety of mechanical, electrical, and fluid-driven equipment such as bearings, belts, drives, motors, gears, couplings, clutches and brakes, linear motion, and hydraulics and pneumatics. PT/MC products are found in manufacturing plants, assembly lines, in production processes—anywhere there is movement, you’ll find PT/MC products.

PTDA’s membership comprises power transmission/motion control distribution firms that generate more than $16 billion in sales and span over 3,400 locations. PTDA members also include manufacturers that supply the PT/MC industry.


MPMA (Minnesota Precision Manufacturing Association) has built upon its achievements the past 60 years and has become the leading voice of the precision manufacturing industry in Minnesota. As an association, they have introduced and supported the initiatives and education that will keep manufacturing in Minnesota a strong and vital component of the state’s economy including the Minnesota Manufacturing Coalition – Uniting 21 trade associations to leverage their resources to have a positive influence on the industry.

UL 508A Certification

UL (formerly Underwriters Laboratories) is an independent testing company that provides product safety standards and third party product safety certification. ISC Companies is a UL certified panel shop; which means we are certified to design and build UL listed control panels that meet the following standards:

  • UL 508A (Industrial Control Equipment) Industrial Control Panels

AWS Certified Welders

  • AWS D1.1 Structural Steel
  • AWS D1.2 Structural Aluminum