Serko Limited, an online booking and expense management company, has signed commitments with to expand their existing agreement.  With the expansion, can offer and promote Serko Zeno, the company’s travel management application, to its business traveler customers and enable the integration of new content onto Serko Zeno. In addition, Booking Holdings Inc., parent of,  is investing about $11.2 million in Serko as part of a roughly $28.8 million capital raising program the company launched to accelerate Serko’s global rollout of Zeno and to develop expanded content offerings for Serko’s global TMC reseller community. The capital will also be used to deliver and support the expected growth in Serko’s customer base and to assist with projected expansion arising from the agreement. Darrin Grafton, CEO of Serko, said the agreement will advance the company’s goal of achieving a “Unified Traveler Experience” that delivers simplicity and compliance to corporate travelers while making resellers more profitable.