The development of the NEOS Server, Version , is partially supported by

• the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Advanced Scientific Computing, U.S. Department of Energy, under Contract W-31-109-Eng-38,
• the National Science Foundation (Challenges in Computational Science) grant CDA-9726385, and
• the National Science Foundation (Information Technology Research) grant CCR-0082807.

• Aachen University of Technology
• Argonne National Laboratory
• Arizona State University
• National Taiwan University
• Northwestern University
• Sun Microsystems

• ADIFOR for FORTRAN code and by
• ADIC or
• ADOL-C for C code.

The NEOS Server is a collaborative project of the optimization community. Researchers associated with the Optimization Technology Center deserve special mention, in particular, Jean-Pierre Goux and Jeff Linderoth. A (we hope) complete list of collaborators can be found on the collaborators page, but several efforts stand out:

• Hans Mittelmann introduced the semi-infinite optimization and semidefinite and second order cone programming areas on the NEOS Server. He is also the solver administrator for more than a third of the solvers.
• David Gay provides constant support for the AMPL solvers.
• GAMS Development Corporation both provides solver support and has developed a GAMS to AMPL translator.
• Companies provide popular commercial solvers free-of-charge for access through the NEOS Server ( Dash Optimization's XPRESS, EKA Consulting's Mosek, and OptiRisk Systems' FortMP).
• Sun Microsystems has donated seven Workstations to the Optimization Technology Center for use in running NEOS jobs.