The following software has been developed and is available for licensing:

CodeLib contains Newton, Gauss-Newton, and IVP codes.
Contact person: Martin Weiser (weiserzib.de)

JCMsuite is a commercially distributed software package for the computation of solutions to 3D, time-harmonic Maxwell's equations, with a focus on applications in optics.
Contact person: Lin Zschiedrich (zschiedrichzib.de)

Kardos is a FE software package for the solution of parabolic systems of partial differential equations.
Contact person: Bodo Erdmann (erdmannzib.de)

KASKADE 7 is a flexible C++ library for solving PDE systems with finite
elements.
Contact person: Martin Weiser (weiserzib.de)

NewtonLib contains software for Peter Deuflhard's textbook "Newton Methods
for Nonlinear Problems-Affine Invariance and Adaptive Algorithms“.
Contact person: Martin Weiser (weiserzib.de)

ZIBgridfree: Statistical thermodynamics software for molecular kinetics and for the simulation of binding processes.
Contact person: Marcus Weber (weberzib.de)

ZIB Optimization Suite. The ZIB Optimization Suite is a software collection for generating andsolving mixed integer programs. It consists of the following parts:

• SCIP - a mixed integer programming solver and constraint integer
  programming framework
• SoPlex - a linear programming solver implementing the revised simplex
  algorithm
• Zimpl - a mixed integer programming modeling language

Contact person: Thorsten Koch (kochzib.de)

MIPLIB 2003 and MIPLIB 2010. These are standard test sets used to compare the performance of mixed integer optimizers.
Contact person: Thorsten Koch (kochzib.de)

SteinLib Testdata Library. This is a library of Steiner tree problems that is constantly being updated and extended.
Contact person: Thorsten Koch (kochzib.de)

Sndlib – Survivable Network Design Library. Survivable Network Design Library. Sndlib is a library of standardized test problems for telecommunication network design.
Contact person: Ralf Borndörfer (borndoerferzib.de)

ttplib – Library for Train Timetabling Problems. This library provides test data to benchmark mathematical models and algorithms for the train timetabling problem.
Contact person: Thomas Schlechte (schlechtezib.de)

MCF – Netzwerksimplexalgorithmus. MCF is one of the fastest implementations of the network simplex algorithms. A version of the code is used in the current SPEC CINT suite to benchmark microprocessors.
Contact person: Andreas Löbel (loebelzib.de)

ZIB Traffic Optimization Suite. ZIB Traffic Optimization Suite is a collection of mathematical optimization tools to solve planning problems in public transit, rail transport, and air traffic. It consists of the following tools:
• VS-OPT (Vehicle scheduling optimizer)
• DS-OPT (Duty scheduling optimizer)
• IS-OPT (Integrated vehicle and duty scheduling optimizer)
• CS-OPT (Airline crew scheduling optimizer)
• TS-OPT (Railway track allocation scheduling optimizer)
• Route planner for visitors of the „Lange Nacht der Wissenschaften“
Contact person: Ralf Borndörfer (borndoerferzib.de)

DISCNET (An optimization tool for telecommunication network design.)
Contact person: Axel Werner (wernerzib.de)

REDUCE is a computer algebra system developed by Anthony C. Hearn starting in the 1960ies.
Since 2009 it is free software (hosted at sourceforge.net). A group of people from computer algebra and computer science is working on new modules and improvements, resp.
Contact person: Winfried Neun (neunzib.de)