About

Our Story
Callahan & Westmoreland was founded in 2018 by current Managing Partner, David Treussard.
After two decades of domestic and global experience in retained search, David developed Callahan & Westmoreland's unique business model and value proposition. The vision is to deliver premier service in the human capital sphere, across C-suite, top leadership and Boards of high-end and high-efficiency organizations.
We provide sophisticated talent advisory services to executives across the globe through a uniquely blunt partnership.
With an comprehensive and meticulous approach,
Callahan & Westmoreland core values are anchored on 3 pillars: transparency, integrity, and efficacy.
At Callahan & Westmoreland, what we do is meaningful in every way.

Our Mission
Nothing is more important than the Team. In every aspect of life, your entourage is the best predictor of your success, whether for an individual or an enterprise. Mission critical: building the best teams to accomplish the mission, every time.
Our Vision
We envision a future where our innovative solutions and unparalleled expertise enable us to inspire and transform individuals and organizations to make a lasting impact on the world.
Our Values
Transparency
We believe in doing the right thing, even when it's difficult. We value honesty and ethical behavior in all our interactions. By upholding these values, we believe we can make a positive impact on the world.
Integrity
We believe that hard work and discipline are essential to success. We are relentless about delivering exceptional results for our clients. By helping our clients achieve their goals to the best of their abilities, we can change lives.
Efficacy
We believe in building longterm relationships with our clients and candidates. We take a customized white-glove approach, emphasize direct communication, and value attention to detail. Customization is adapting to overcome.
Long Term-Partnership Philosophy
In a world of transactions, Callahan & Westmoreland emphasizes the personal relations in human capital. Though future of the workplace is changing, it is important to remember that people connect with people. This interpersonal touch is what drives our desire to be your partners in the long-term. Our clients see us as extensions of their business, as we provide valuable insights from across the industry that their internal teams would not have access to. As we invest in your team upon placement, we continue to be involved in their growth and the growth of your business.
​
As a core foundation of Callahan & Westmoreland's long-term partnership philosophy, we offer a range of Unlimited and Extended Guarantees on qualifying placements.
Our Leadership

David Treussard
Managing Partner
David brings an extensive and global experience in Retained Search and Talent Management across functions and industries. Born in France, David graduated from Sciences Po with a Master’s in Political Science snd attended the Military Academy, ESM Saint-Cyr Coëtquidan. Strong of his Military and Strategic Leadership background, he has put his vision in action and has had a unique impact on countless organizations across the globe.
David@Callahan-Westmoreland.com
(646) 457 - 7683

Thomas Treussard
Associate Partner
Thomas attended The Pennsylvania State University, graduating with a Bachelor of Science, Economics, where he was recruited to play D1 Rugby. He earned a 4-year US Army ROTC scholarship and commissioned into the United States Army Reserves in 2022. He currently serves as a Civil Affairs Officer.
Thomas joined the firm in 2022.
Thomas@Callahan-Westmoreland.com
(646) 217 - 1545