Strategic media that moves the needle.
Philadelphia based, national results. We're not just a media agency; we're your strategic ally, relentlessly focused on driving results. Clients choose us for our bold thinking, collaborative spirit, and obsession with what's next. No cookie-cutter media plans here—every solution is tailor-made, grounded in data, and designed to deliver. The proof? Our clients stick around—nearly 9 years on average, over 2.5x longer than the industry norm. With MayoSeitz Media (MSM), you get best-in-class service, full transparency, and a team that believes trust, respect, and ethics are the foundation of every great partnership.
Core Agency Services
For nearly 30 years, we have evolved with the shifting media landscape, balancing media efficiencies with effectiveness. We deliver smart media strategies and best-in-class execution to drive results for our clients.
Media Strategy & Planning
Built on a foundation of data, science & media expertise, we craft effective strategies that accelerate branding and drive business results.
Multichannel Media Buying
Our team of traditional & digital channel experts flawlessly execute integrated, innovative media plans, optimizing along the way.
Business Insights & Analytics
Generating results hinges on our ability to transform data into actionable insights and business intelligence.
Sponsorships & Sports Marketing
Identifying unique opportunities that enhance brand awareness and foster community connection enables our clients to stand out.
AGENCY TOOLS & RESOURCES
Our significant investment in resources is an advantage that enables us to develop effective media campaigns. With nearly 30 years of experience in a variety of industries, we have a deep understanding of audience preferences, motivations, and decision-making habits—invaluable in generating results.
AUDIENCE
IMMERSION
We rely on industry-leading research partners like Nielsen, MRI-Simmons, and eMarketer to master the complex media landscape and evolving media consumption habits. This enables us to refine media plan recommendations and pinpoint target audiences.
MEDIA PLANNING & BUYING TOOLS
We use a suite of planning tools to perform comprehensive competitive analysis and understand current pricing trends. We activate all media plans through Mediaocean, which facilitates the management and coordination of the entire advertising process—from planning and purchasing to analytics, optimization, invoicing, and payments.
ANALYTICS & MEDIA MIX MODELING
We securely store all client and vendor data in our data warehouse, InMarket. From there, we slice and dice the data to create robust visualizations and custom dashboards suited to your needs.
AD TECH
STACK
Our digital tech stack includes all major self-serve ad platforms including Google, Meta, LinkedIn, TikTok, and beyond. Our in-house DSP for programmatic media buying is an industry-leader in The Trade Desk. We layer on ad serving through Innovid, brand safety and suitability controls from IAS, and Lotame for additional data management capabilities.
AGENCY TOOLS & RESOURCES
Our significant investment in resources is an advantage that enables us to develop effective media campaigns. With nearly 30 years of experience in a variety of industries, we have a deep understanding of audience preferences, motivations, and decision-making habits—invaluable in generating results.
AUDIENCE IMMERSION
We rely on industry-leading research partners like Nielsen, MRI-Simmons, and eMarketer to master the complex media landscape and evolving media consumption habits. This enables us to refine media plan recommendations and pinpoint target audiences.
MEDIA PLANNING & BUYING TOOLS
We use a suite of planning tools to perform comprehensive competitive analysis and understand current pricing trends. We activate all media plans through Mediaocean, which facilitates the management and coordination of the entire advertising process—from planning and purchasing to analytics, optimization, invoicing, and payments.
ANALYTICS & MEDIA MIX MODELING
We securely store all client and vendor data in our data warehouse, InMarket. From there, we slice and dice the data to create robust visualizations and custom dashboards suited to your needs.
AD TECH
STACK
Our digital tech stack includes all major self-serve ad platforms including Google, Meta, LinkedIn, TikTok, and beyond. Our in-house DSP for programmatic media buying is an industry-leader in The Trade Desk. We layer on ad serving through Innovid, brand safety and suitability controls from IAS, and Lotame for additional data management capabilities.
OUR EXPERIENCE
MSM plans and buys media regionally, nationally, and internationally, but we are proud to call Philadelphia our home. No other agency knows local media in the Northeast region like we do.
MORE ABOUT MSM
Led by experts; powered by partnership. At MSM, senior leadership is hands-on—from strategy to execution—bringing bold thinking, tailored solutions, and proven results to every client relationship.
RECENT NEWS
