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Strategic Media Planning & Buying

About Us

Mason & Markwith Media is a full-service digital marketing agency that helps small and medium-sized businesses and publishers plan, execute, and optimize impactful media campaigns.

Founded in April 2020 by Derek and Bonny, and bringing over 30 years of combined experience in media and marketing – the agency was built to help small businesses adapt and thrive in a rapidly evolving digital landscape.

We specialize in precision-driven media planning and buying strategies that deliver measurable results. By leveraging advanced digital display, contextual search, retargeting, video, and Connected TV (CTV) and audio across all major streaming platforms, we connect brands with their ideal audiences – at the right time, on the right devices.

Partnering with Mason & Markwith Media means joining a community of local businesses from Williamsburg, VA to Cape Cod, MA that leverage shared buying power and advanced technology to compete with national brands. By keeping our client roster intentionally focused, we deliver hands-on, customized strategies that drive meaningful reach, engagement, and growth – giving local businesses access to the same tools and insights once reserved for the biggest players.

Meet The Team

Derek Mason

A native Cape Cod-der, Derek co-founded Mason & Markwith Media with a commitment to fostering authentic connections and providing exceptional service. Recognized for his dedication and willingness to go above and beyond over the years, Derek takes great pride in ensuring clients feel supported and valued throughout the entire process.”

  • Favorite things?  Friends, Family, The Beach, and the Golf Course
  • Favorite Food:  Pizza!  My favorite these days is Pepperoni, Hot Honey, and Whipped Ricotta 
  • Go-to coffee/drink order: Large Black Coffee
  • Favorite Movie:  The Godfather Series  
  • Best advice ever received: Always do what you say you’re going to do
  • If not in media, he’d be… A State Trooper 
  • Obsession: Golf, anything Golf 
  • Bucket list: Go to the Ryder Cup in Europe 

Fun fact:  I was named after Derek Sanderson

Bonny Markwith

A proud 2008 James Madison University graduate (Go Dukes!), Bonny co-founded Mason & Markwith Media with a passion for building genuine relationships and delivering top-notch service. Known for always going the extra mile, she thrives on helping clients feel taken care of every step of the way.

  • Favorite things? Her family, friends, time at the beach or in the mountains, her pup & the Peloton. 
  • Favorite Food: Watermelon and crab cakes
  • Go-to coffee/drink order: Vanilla iced coffee, iced chai latte, or a sweet tea.
  • Favorite Movie: Father of the Bride I & II and Crazy Rich Asians
  • Best advice she’s ever received: Do what you love.
  • If not in media, she’d be… a Nurse Practitioner or a School Counselor.
  • Obsession: The Peloton — cycling & yoga.
  • Bucket list: Travel to every state and visit a new place!
  • Fun fact: Bonny is the unofficial queen of trip-planning, a master of planning the next adventure while on vacation. 

Above all, Bonny is fueled by connection — whether it’s with clients, colleagues, or her community — and she brings that energy into every project she touches.

Let's Work Together