ABSSP is an exact algorithm for solving Subset Sum problem.

A software house and engineering company specialising in solutions and consultancy services.

An advanced integrated multidimensional modeling software for building decision support and optimization applications.

The most comprehensive web site about DEA, Productivity, Efficiency of Decision Making Units. Information about Malmquist index, CRS, VRS models in Data Envelopment Analysis and DEA software.

A dutch consultancy specialising in scientific computing and general data-based modelling.

Support for users and prospective users of AMPL, a language and computing environment for describing a broad variety of optimization problems to a range of "solvers" for such problems.

Provides OR consulting services.

Provides modeling and optimization technology to help in decision support applications. Includes news releases and contact information.

Developer of Frontier Analyst, and Decision Explorer software for professional decision making.

A brief description of dynamic simulation with a focus on probabilistic analysis of uncertain systems.

Calculation of the economical magnitudes, and the optimal relationship between the magnitudes of a standard industrial series (Spanish/English).

Open-source software for the OR community.

A platform-independent software component for solving optimization problems.

Supply Chain Management, OR, Modeling and ILOG technology.

Consulting service and software design.

A short overview of project analysis/management networks describing Critical Paths and PERTs

Modelling and optimisation software, Xpress-MP solves large optimization problems in areas such as supply chain & logistics.

Xpress-MP solves large optimization problems in areas such as supply chain & logistics.

Data Envelopment Analysis Software.

Training and assistance in Decision Analysis and Project Risk Management; software; consulting.

Operations Research Enthusiasts - Practising Optimization, Simulation, Statistics and building models in Excel and Access

Decision Science Center partners with companies to consult in the areas of optimal business decisions across industries.

Producer of Excel-based risk and decision analysis tools (Crystal Ball, CB Predictor) for business forecasting

Designs and implements custom studies and technology solutions.

Two new software products solving optimal inventory control problems for trade and tech service enterprises.

Provider of software and economic consulting services to the Operations Research community and utility industries

EMANS is a software to solve various OR problems.

AHP and other decision support software.

The General Algebraic Modeling System (GAMS) is a high-level modeling system for mathematical programming problems.

Web-based tool for solving practical optimization problems.

Information about the ILOG Optimization Suite, ILOG CPLEX, ILOG Solver, and ILOG OPL Studio

Delivers optimization software for solving linear, MIP and MIQP problems.

INFORM supplies IT systems for intelligent decision support based on advanced optimization technologies including fuzzy logic.

Specialised in multi-criteria decision analysis under uncertainties.

Operations Research Analyst and Management Scientist Consultant using methods of operations research and applied mathematics.

The Legion simulation system predicts, measures and displays actual human movement within existing and unbuilt venues, to improve design and operational effectiveness and safety.

Optimization modelling software.

Business modelling consulting, software, and seminars.

Software solutions for finance, engineering, and operations.

Specializes in the practical application of mathematical programming to economic analysis, planning, public policy, and decision support.

MEDC specializes in custom and semi-custom software for Bayesian Data Analysis to estimate the parameters of a physical distribution given some data.

Analycorp presents INSIGHT.xla, software for Monte Carlo simulation, forecasting, and optimization, as well as seminars in their application.

Provides discrete event simulation, robotics, emulation and virtual factory applications.

Pinter Consulting Services specializes in algorithm and software development, consulting and workshops.

New technology for large-dimensional non-linear optimization is presented. Free version of software for optimization is available.

Scheduling and rostering, network optimisation and journey planning. Software and consultancy services.

Offers services for solving of real life Optimization problems, consulting services, modeling and simulation. Also carries out R&D projects.

Creator of fortmp, fortsp, fortQP, and ampl software.

OptLine is a combinatorial optimization problems solver.

A consultancy with expertise in optimization, machine learning, neural networks, natural computation approaches, and advanced modeling techniques.

ORTEC is a major player in the advanced planning software and operations research field.

Risk and decision analysis software, including @RISK.

Offers a full range of evaluation, analysis, modeling and implementation services to business and public agencies.

A web based system for decision analysis and for calibrating additive points systems. It is based on the PRO-AM method to help decision makers prioritise and choose among alternatives.

Provides professional consultancy services in Operational Research (OR).

Provides optimisation software development.

Mixed integer/linear programming modules.

Monte-Carlo Risk Analysis add-in for Excel. Free trial download.

Tynemarch Systems Engineering Ltd. specialises in the field of applied systems analysis and optimisation.

An international management consulting firm specializing in strategy, strategic change, and growing shareholder value.

Helping management use MS/OR to create a sustainable competitive advantage. They also publish a monthly e-newsletter.

Manufacturing training, and implementation of chemical process optimization.

KNITRO solves continuous nonlinear optimization problems by implementing an interior (barrier) type method with trust regions.

For fast and robust large-scale optimization in MATLAB. TOMLAB provides interfaces to CPLEX, Xpress, SNOPT, MINOS, and MINLP.

Decision tree analysis software.

Veros Software is a predictive technology software company.

Developers of VISA, a sensitivity analysis tool and SIMUL8, which is used for discrete event simulation.