Lorigan worked at Macmillan during the merger in May of the majority of its Science and Education division with Springer Science+Business Media to create Springer Nature, a firm with almost 13,000 staff in more than 50 countries and a turnover of about €1.5bn (£1.06m).
Lorigan's new role is executive vice-president of comms.
Her opposite number at the policy and external relations team is Eric Merkel-Sobotta, formerly EVP corporate comms at Springer Science and now EVP policy and external relations. Reporting to him will be director of public affairs Annika Dirks, and policy and external relations manager Ruth Francis.
Springer Nature said the comms team would set the company's global comms strategy, operating from the US, China and Europe. Its remit will include brand strategy and management, corporate comms, internal comms, digital comms strategy and channels management.
The policy and external relations team will have responsibility for policy and public affairs, sponsorship, corporate social responsibility and government and industry relations.
Before joining Macmillan in 2012, Lorigan was VP of global comms at InterContinental Hotels. Prior to that she was CEO of PR at Golley Slater.