The agency will be responsible for B2B and consumer brand communications, conceiving and activating quarterly hero campaigns.
The FTSE 250 company operates four brands: Page Executive, Michael Page, Page Personnel and Page Outsourcing, supported by additional brands across the business.
It has been placing prospective job candidates with clients for more than 40 years and currently operates in more than 36 countries. PageGroup has 7,457 employees worldwide in more than 140 offices.
"At PageGroup, it’s key for us to provide personalised, relevant information to both candidates and clients, and being an authority for each stage of an individual’s career. Our marketing needs to be integrated across channels and 3 Monkeys Zeno came across strongly in terms of meeting this brief," PageGroup UK marketing director Alex Bates said.
3 Monkeys Zeno head of corporate brand Sarah Ogden said: "Recruitment is a great measure for the fast changing world of today. A brand with the depth of experience and expertise of PageGroup makes it an excellent client to work with. It's great to have such a forward-thinking client ready to do things differently."