Trade Extensions (www.tradeextensions.com) is the leading strategic sourcing software provider for the most complex and large scale eSourcing and optimisation projects. Its platform, TESS™, is uniquely flexible and runs projects ranging from simple reverse auctions to complex strategic sourcing events involving goods and services worth billions of dollars, millions of data items and multiple rounds of negotiation. The flexibility and power of the platform means, along with sourcing, it can be configured to model and optimise practically any resource allocation problem and has been used for applications as diverse as production planning and supply chain design. Over $1 billion worth of spend is allocated through TESS™ each week. Trade Extensions has offices across Europe and the U.S. and its sourcing platform is used by leading companies as diverse as P&G, Tesco, Unilever, Cargill, Coca-Cola, Dow Chemicals, and Kimberly-Clark. Trade Extensions: negotiations and optimization online.