Ecasb is a B2B website (wholesale) that manufacturers, exporters, importers and Wholesalers can trade their products. Ecasb aimed at creating a platform for online sales for wholesale and merchants and Manufacturing companies can offer their products or services on this platform, find costumers and fulfil their need of products and services through other providers. All of Ecasb services are available for users in both Persian and English. Ecasb website was founded in 1382 and in 1387 with upgrading and improving the website we expanded our activities in B2B. In this period Ecasb focus was mainly on energy section (oil, gas, petrochemical, electricity, etc.) and suppling materials required by this section. our goal was to provide the two-way connection between manufacturers of materials and equipment, Technical service providers, Financial engineering, insurance, etc. and Operators and contractors Oil and Energy Projects. With the expansion of infrastructure and increasing access to the Internet since 1391 Ecasb services expanded and covered all economic sectors. Today, with renovation of Ecasb website, we started new approaches to expand our activities. the new Ecasb website includes store, sourcing and Smart phones app (android and IOS) that all of these parts will be available in near future. Ecasb is the synonym of the word ecommerce and it stands for electronic commerce.