Our Story

We have a long track record of success

Our Start

National Matching Services Inc. (NMS) was founded by Elliott Peranson in 1985, after developing sophisticated matching software to place physicians into residencies in the United States.

Since then NMS has implemented Matching Programs in a number of industries and professions, including healthcare, education, law, and financial services.

Roth-Peranson Algorithm and the Nobel Prize

The Roth-Peranson matching algorithm is at the core of all our Matching Programs. The algorithm is based on the deferred acceptance algorithm, but has been adapted to accommodate complexities that arise in applying matching to real-world markets.

The algorithm was designed by Alvin Roth and NMS President Elliott Peranson. It was key to Roth's winning the 2012 Nobel Prize for economics. The algorithm is transparent, stable, strategy proof, and is used by matching services around the world.


NMS delivers state-of-the-art Matching Programs for professional organizations and industry. We customize our Matching Programs to leverage the power of the Roth-Peranson algorithm while meeting the unique needs of each recruitment environment.

NMS's Matching Programs have been used in a wide variety of applications, including:

  • Healthcare residency and internship placement (physicians, pharmacists, dentists, psychologists, optometrists, and others)
  • School admissions
  • Enterprise human resources (financial services, law, and others)
  • Co-op Jobs