At McDay, you’ll find graphic artists, writers and web designers working alongside chemical engineers, mathematicians, biologists, and technologists - to brainstorm and create, for you.

Philadelphia, PA is our inspiration and our home office. But in client offices around the world, it is our senior execs, coming to us from global roles with Fortune 1000 companies, who lead client strategy, with a personal commitment and understanding of the challenges.

Clients describe us as a technical ad agency.

When the products and solutions are as complex as those found in pharmaceutical and biotech, or oil/gas and chemical manufacturing, or the multi-layered world of finance, or the newest high tech solutions, clients want to work with a marketing team with a lot of brains, who have literally lived in their world and thus, deeply understand their business.


With over 25 years of award-winning campaigns, McDay knows how to create attention.

Our expert team mixes marketing strategy with creative talent to generate measurable
results for our clients.

From public relations and blog development, to web design, email campaigning, and creating a social media buzz, McDay will help you find your way to the spotlight.