The body is responsible for driving through sweeping changes in education, childcare, social care and children's health and youth work.
Geronimo is promoting the Big Deal, a sector skills agreement aimed at addressing low standards in childcare.
The agency's targets are employers, local government and other stakeholders, who they are encouraging to sign up to the Big Deal statement of support.
Geronimo director Lorna Gozzard said: 'It's about engaging the whole sector and it's about making skills interesting. The Government is pushing Big Deal because it is linked into the Every Child Matters childhood wellbeing campaign, but it is also tied to the overall skills agenda.'
The agency is handling stakeholder liaison and media relations, focusing on trade publications.