atlanta digital marketing consulting

Data-driven Digital Marketing Consulting


We Respect (and love) the Data.

Established in 2007, Vast Interactive Consulting is an Atlanta Digital Marketing Consulting, Online Marketing Campaign Management and Marketing Analytics partner.

Our proven success (using marketing analytics) makes us a valuable resource for businesses looking for cost-effective digital marketing campaigns with:

  • swift on-boarding
  • action-oriented project plans
  • integration with existing marketing processes

Our Digital Marketing Consulting Services

Our end-to-end digital marketing consulting services incorporate data analytics, user experience, and audience preferences to broadcast better marketing content across Websites, Search, Social, Display & Email.

Vast is led by Cathy Llewellyn, an Atlanta digital marketing consultant with 18 years of agency, business-side and consulting experience working with a multitude of recognizable brands, regional companies, local businesses & start-ups, both B2B and B2C.

The Vast Digital Marketing Consultant Team

Vast Interactive project teams are crafted to fit our clients’ digital marketing and online advertising campaign needs – Vast provides on-demand digital marketing consulting and online marketing and advertising campaign management services, by project/campaign.

Learn more about our online marketing campaign services

Cathy Llewellyn Digital Marketing Consultant Atlanta

Cathy Llewellyn

Digital Marketing Consultant, Founder & Principal of Vast Interactive Consulting

Cathy Llewellyn – Principal, Digital Marketing Consultant

Cathy Llewellyn leads Vast Interactive and has been a part of the Atlanta marketing and advertising community for 18 years. Celebrating the 10th year of Vast Interactive Consulting LLC, she went independent in 2007 to offer awesome, end-to-end digital marketing consulting and online advertising campaign management direct to mid-sized and small businesses.

Prior to starting Vast Interactive, Cathy’s marketing & advertising experience began in 2001 on national accounts at traditional and digital agencies, including Octagon Marketing (BMW,) BBDO (Cingular Wireless), Ant Farm Interactive | nurun (Equifax, Home Depot Canada), and Spunlogic (GDEcD & CRUNK!!! Energy Drink). In 2009, she worked as in-house eCommerce Manager at DS Services, then resumed as Principal of Vast Interactive to better balance work / self / family / community.

Cathy Llewellyn graduated with a Bachelor’s from Duke University, earned a Publishing Certificate from NYU, is Google AdWords Certified, and has shown proven success for over 10 years as a small business owner in Atlanta. She is a 2015 graduate of LaunchPad2x, an exclusive women entrepreneurship program and served on the Board of Directors as Director of MarComm for ATP, a local non-profit organization. She’s actively involved with STEM and start-up initiatives, and proudly supports women entrepreneurs and local communities in Atlanta, including the Peachtree Creek Greenway in Brookhaven, Ga.


Client Testimonials

“Cathy did a terrific job with updating our website and working with Google to improve our SEO visibility and positioning on assisted living google searches.”

Hal P. / Residence at Glen Riddle

“I’ve worked with Cathy over the course of several years. She is a valuable, strategic partner who provided key insights and equipped us with the Analytics needed to allocate our digital marketing spend to the best performing channels. I highly recommend Cathy and welcome the opportunity to work with her again in the future.”

Connie H. / Esquire Solutions

“We really like Cathy Llewellyn – she’s doing a great job for us. I’m pretty impressed and that ain’t easy :).”

Scott B. / International WFM Company

“We’ve been working with Cathy Llewellyn and Vast for almost 3 years – she built an award-winning SEO WordPress site for 3PResources with a custom Bullhorn plug-in, and we trust her as our “webmaster” and go-to digital consultant for marketing content and SEO as we grow our business. Cathy, thanks for going the extra mile for us this year. You are so awesome to work with.”

Steve R. / 3P Resources

Businesses trust Vast Interactive Consulting for reliable, accountable and successful Digital Marketing Consulting.


Contact Vast Interactive about Atlanta Digital Marketing Consulting