Serko, the travel and expense management platform, has extended its reseller deal with Carlson Wagonlit Travel (CWT), making its Zeno platform available to CWT clients in the US and Canada. The existing CWT agreement was limited to Australia and New Zealand. Zeno will become one of CWT’s preferred booking tools for the small to medium enterprise market in North America, including a self on-boarding platform that simplifies rollout and configuration. Darrin Grafton, CEO of Serko, said that CWT is one of the largest global entities in the corporate travel world “and we have had a longstanding relationship with the team in the Australasian market.” As part of the CWT deal, Serko will integrate its partner's RoomIt hotel merchandising platform and content into Zeno’s hotel supply platform.