PHILOSOPHY
True harmony is more than alignment. It’s the key to stronger performance and lasting success. When trust and shared purpose are at the core, partnerships don’t just endure; they elevate the work, the people, and the results.
We take a deeply invested approach to every engagement. Whether optimizing marketing ecosystems, strengthening agency partnerships, or guiding financial growth, we focus on creating the conditions for both harmony and high performance.
This is HARMONIUM.
We help marketers, agencies, and investors build partnerships, drive growth, and create lasting impact. Every challenge is unique, and so is our approach. With a focus on precision, momentum, and measurable results, we ensure every decision leads to stronger alignment, smarter investments, and tangible success.
Helping marketers find, build, and strengthen agency partnerships with a custom approach that ensures the right fit and lasting success.
Guiding agencies and investors through mergers, acquisitions, and strategic growth planning to create sustainable, high-value businesses.
TEAM
Our team brings together seasoned specialists in management, marketing, media and finance—all dedicated to providing solutions that resonate with the values that are driving the assignment.
Hasan Ramusevic
Founder & CEO
Trudy Hardy
Principal, Brand Growth & Strategy
Stephanie Sumner
Chief of Client Services
John Moore
Principal, Media & Innovation
Thomas Entrup
Principal, Financial Advisory
EXPERIENCE
The partnerships we cultivate endure for eight years on average, with one in four lasting beyond twelve—a testament to the immeasurable value of genuine harmony. Our work unfolds behind the scenes, where trust and confidentiality are paramount. You won’t find client logos here. And, if we have the privilege of working together, yours will be treated with the same discretion.
For more than two decades, HARMONIUM has been the quiet force behind some of the most pivotal agency decisions in the industry. Led by a founder with 35 years of experience and more than 500 agency searches, we have helped brands and agencies reshape partnerships, transition seamlessly, and navigate billions of dollars in agency fees and scopes.
Each partner brings over 30 years of deep expertise across marketing, media, agency management, and financial strategy. We help marketers refine ecosystems, strengthen partnerships, and resolve challenges before they become fractures. For agencies, we provide guidance on growth, acquisitions, and financial strategies that position them for long-term success.
If you’re considering a change—whether optimizing partnerships, expanding, preparing for an acquisition, or conducting an agency search—we welcome a confidential conversation at newfriends@harmonium.group.