
BORN
DIFFERENT
Transparent, innovative media planning and buying
redefining industry norms for progressive brands.
The December19 Effectiveness Promise
We redefine industry norms with original thinking to achieve your business goals.
Open partnerships and full transparency ensure every pound drives sustainable success.
We deliver honest, jargon-free reporting and measurement - no media pseudo science here.

RESULTS BEGIN WITH CARING
Challenging your goals
We're super proud to be IPA Effectiveness Accredited, our commitment to redefining media norms for our clients every time.
Empowering our team
Keeping our team thinking differently means we deliver transparently effective media planning and buying for our clients. We're really proud to be…
Creating sustainable impact
We're proudly a B Corp business and pioneers in responsible media. We put people, planet and profit on an equal footing.
Home of progressive brands…
…and clearly effective results




“What makes December 19 distinct is how they think more widely than just advertising, looking to create effective marketing results that create positive results for Xero as a business.”
Emilie Watts
Brand Marketing Manager, Xero
LET’S GET RESULTS TOGETHER
Looking for a media partner? Tell us your business objectives and we will discuss our approach. Transparency-driven, challenger-minded and no media jargon… that's a promise!