"Both we and he would like Chris to stay involved with Xero, but we'll have clarity on whether he can over the next few days.
"If it does turn out he's not allowed to do external directorships we do have good planning in place so we're not too concerned."
Asked if he had concerns about Liddell working for such a controversial figure as Trump,
Drury said: "We don't have a view we're just excited for Chris that he's that close to power. Chris has strong Kiwi values and I think it can only be a really positive appointment for everybody."
Last year, Xero centralised its US operations in Denver where it plans to service the world's biggest economy with hubs in San Francisco, New York, Austin and Seattle.
The company hired former Capital One executive Keri Gohman to run its American business, which is central to the New Zealand firm's ambitions to be a global player.
Xero's shares last traded at $18.50, up 14 per cent from a year earlier.
Liddell is also chairman of the environmental organisation the NEXT Foundation.
Chief executive Bill Kermode congratulated Liddell on his appointment to work with Trump - a man not known for his environmental credentials.
"Chris' appointment is an outstanding achievement for a New Zealander - and a great opportunity to have a significant impact on a world stage," Kermode said.
"Importantly, Chris is also a loyal New Zealander, and continues to be passionate about helping New Zealand realise its full potential."
As chairman of NEXT, Liddell had made an enormous contribution to the support the organisation had provided to environmental and educational initiatives, Kermode said.
"His vision, integrity, professionalism and energy have shaped NEXT in its first two years, and we wish him all the very best in this hugely exciting next step in his career."
- additional reporting: BusinessDesk