Omnicom Media, an Omnicom Connected Capability has combined Hearts & Science and Mediahub networks under the unified banner Hearts United.
As revealed first here on B&T , Hearts & Science will become Hearts United in Australia. But, unlike other markets, Hearts United and Mediahub Australia will continue to operate as separate agencies locally.
Hearts United is built to help ambitious brands navigate a media environment where influence moves continuously across platforms, creators, communities, commerce, and AI.
“Hearts & Science helped pioneer data-driven decision-making, while Mediahub broke new ground by proving media could serve as a creative platform,” said Omnicom Media CEO Florian Adamski.
“In bringing them together as Hearts United, we have created a new globally scaled network built from complementary strengths, approaches and footprints, and grounded in the shared principle of putting client growth at the heart of every decision.”
The new agency – which operates across 40 markets and represents approximately $9.1 billion in 2025 billings – launched following sustained growth at both organisations. Between 2021 and 2025, Hearts & Science increased its billings by 50 per cent, while Mediahub grew 33 per cent.
As result, the new agency debuts with one of the best new business performances in the industry as tracked by the COMvergence real-time dashboards, currently ranking number one in the US YTD with $294m in total new business (wins minus losses, including retentions); and third globally and in EMEA with $567 million and $242 million, respectively, outperforming agencies that are up to three times its size.
Four principles define the new agency’s approach:
Outcomes-oriented: An evolving commercial model connects the agency’s success with client growth, putting accountability into the operating model.
Predictive by design: AI is embedded into workflows and the operating model to expand capacity, strengthen human judgment and give talent more time to solve higher-value problems.
Ecosystem mastery: Teams plan holistically across the platforms, communities, creators, and commerce environments where attention and influence move, rather than treating channels as isolated decisions.
And focused and senior-led: Expert teams work as extensions of clients’ organisations, reducing silos and handoffs while bringing senior guidance and diverse expertise to the work.
Hearts United will be led in the US by Nicole Estebanell, who previously served as CEO of Mediahub US, and in EMEA by Ross Jenkins, who led Mediahub across that region. Both leaders bring experience scaling high-growth businesses while maintaining the entrepreneurial cultures and client relationships that drove their success. Their counterparts in APAC and LATAM are expected to be announced in Q4.
