NEGOCIAB2B is an online business marketplace focused on the sale and transfer of companies, business assets, and operating businesses in the municipality of Murcia. Created as an initiative of CROEM and the Murcia City Council, the platform aims to help prevent viable businesses from closing when owners lack a successor, while supporting generational renewal and business continuity.

The portal enables owners to publish offers to sell or transfer a business, including franchises, and helps prospective buyers find companies and business assets available for transfer. Users can browse listings across different sectors, with examples including an aesthetics centre, a bakery and pastry shop, an office-supplies company, and a rehabilitation clinic. NEGOCIAB2B also provides free advice, support, and training to help participants navigate the process. In addition to its marketplace, the site shares news and information about the platform and related events for the local business community. By bringing business owners and potential successors together, NEGOCIAB2B offers a dedicated resource for business transfers in Murcia.