Edison Welding Institute
EWI, previously known as Edison Welding Institute, is a nonprofit engineering and technology organization dedicated to welding and materials joining, state-chartered in Ohio, USA. EWI staff provide materials joining assistance, contract research, consulting services and training to member companies in the aerospace, automotive, defense, energy, government, heavy manufacturing, medical and electronics industries. Approximately 150 employees staff the Institute. EWI holds numerous patents for various materials joining technologies.
The organization was founded in 1984 in a research park adjacent to Ohio State University, when then Ohio Governor Richard Celeste established the Thomas Edison Program, an initiative for the development of several Thomas Edison Technology Excellence Centers within the state, including a center for Welding Research and Development. It is considered the leading institution in North America for advancing the science of joining materials. The EWI has collaborated with the Ohio Supercomputer Center under its "Blue Collar Computing Initiative" to develop supercomputer simulations of welding.  
The organization's sales in 2005 were $30 million. The organization receives a substantial part of its support from a governmental unit or the general public. In 1997, EWI spent $8.8 million on research and development.
- U.S. Patent and Trademark Office
- Welding Engineers In Demand, New York Times, 10 Sept 1985
- "OSC Announces High Performance Computing Partnership With Edison Welding Institute; Engineering Departments from Over 200 Companies to Benefit From Cost-Saving Online Testing Simulations." PR Newswire. New York: Nov 28, 2006. Source type: Wire Feed ProQuest document ID: 1169584711 Text Word Count 680 Document URL: http://proquest.umi.com/pqdweb?did=1169584711&sid=1&Fmt=3&clientId=76566&RQT=309&VName=PQD (ProQuest, by subscription. Retrieved August 28, 2007
- Supercomputing Comes to the Rust Belt, Businessweek, 12 Apr 2007
- Blue Collar Computing resources offered for welding simulations, Columbus Business First, 17 Nov 2006
- Computers take on blue-collar tasks, The Columbus Dispatch, 12 Jan 2007
- Business First of Columbus (2005-01-21). "Edison Welding Institute names interim CEO". American City Business Journals, Inc. Retrieved 2007-09-19.
- "Edison Welding Institute, Inc.". TaxExemptWorld.com. Retrieved 2007-09-19.
- "Research and Development Funding and Performance by Nonprofit". National Science Foundation. October 2001. Retrieved 2007-09-19.
- http://www.ewi.org/ : Edison Welding Institute site