About Us

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 Match Placement Systems in a number of industries and professions, including healthcare, education, law, and financial services.

Matching Algorithms and the Nobel Prize

The algorithms we use to assign applicants to positions are grounded in Nobel-Prize winning research.

The Roth-Peranson matching algorithm is at the core of the matching services we provide for admission into competitive schools and training 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, and was key to Roth's winning the 2012 Nobel Prize for economics.


NMS delivers state-of-the-art Match Placement Processes for professional organizations and industry. We customize our matching systems to leverage best practices from leading market-design research while meeting the unique needs of each recruitment environment.

NMS's Match Placement Processes have been used in a wide variety of applications, including:

  • Healthcare residency and internship placement (physicians, pharmacists, dentists, psychologists, optometrists, and others)
  • School admissions
  • Student Exchange
  • Enterprise human resources (financial services, law, and others)