The group has named Steven DeSutter vice-president of corporate comms, based in New York, but with international responsibilities for the demerging entity.
PwC Consulting - soon to be renamed Monday - has also announced the appointment of Bennett Machtiger as senior vice-president and chief marketing officer.
PwC UK director of corporate comms Jeremy Wyatt said both posts were created in light of the consulting group's upcoming stock market listing.
'Steve is coming in to run communications for the group at a public company level,' said Wyatt.
'The group has had PR and marketing teams in place before, but they were dealing more at a B2B level.'
DeSutter and Machtiger will report to PwC president and CEO Greg Brenneman.
Prior to this appointment, DeSutter worked as senior vice-president of TurnWorks, the private equity firm founded and owned by Brenneman.
Before Turnworks, DeSutter was senior V-P marketing at US software firm Powerway.
DeSutter also worked at BP for 18 years in roles such as director of corporate marketing and change management and manager of mergers and acquisitions.
Machtiger joins PwC from US ad agency Young & Rubicam, where he was a managing partner.
Brenneman and PwC chairman Tom O'Neil announced PwC Consulting's £70m rebrand as Monday last month.
OneMonday, the publicly- listed parent of tech PR firm Text 100, sold its name to PwC last month in a deal worth £3m (PRWeek, 14 June).
OneMonday, led by CEO Tim Dyson, will receive £250,000 upfront, and the remainder when it secures shareholder approval later this year.