Harry Eklof & Associates Inc. is a manufacturer representative. They offer training services and also connect the user to the following products: Plumbing, HVAC, Bath Fixtures, Sump Sewage, Tools.

The Mechanical Contractors Association of America (MCAA) serves the unique needs of approximately 2,600 firms involved in heating, air conditioning, refrigeration, plumbing, piping, and mechanical service.

The National Institute of Standards and Technology (NIST) was founded in 1901 and is now part of the U.S. Department of Commerce. NIST measurements support the smallest of technologies to the largest and most complex of human-made creations, ranging from nano-scale devices so tiny that tens of thousands can fit on the end of a single human hair up to earthquake-resistant skyscrapers and global communication networks.

Shore Distributors, Inc. are wholesale distributors of HVAC and plumbing supplies across Del-Mar-Va. They have training programs and product seminars too.