Vast Interactive Consulting Digital Marketing Strategy Consulting

When data and creativity team up, your digital marketing wins.

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Since 2007, Vast Interactive Consulting has been helping great clients achieve meaningful outcomes with their digital marketing.

Vast Interactive is a boutique digital marketing consultancy and content studio helping businesses grow as digital marketing has evolved, from social media’s rise in 2007 to AI in 2024. We partner with business owners and decision-makers in healthcare, wellness, eCommerce, and professional services to craft digital marketing campaigns that are practical, data-informed, and tailored to each business’s goals.

From digital marketing systems to content creation and campaign management, we focus on content strategies that move the analytics needle and make your brand stand out — so you can focus on what you do best: running your business.

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 Practical Content Strategy  High-Impact Website Copy  LeadGen Landing Pages  Brand Story Videos  Engaging Email Marketing  Thought Leadership Articles  High-Quality Social Media Content  Paid Advertising Campaigns  Local SEO, AEO Business Profiles

WATCH: About Vast Interactive Consulting

Watch a VastReel video to learn how Vast Interactive’s approach to digital marketing helps small businesses succeed in today’s evolving, noisy digital landscape.

CEO of Just Like You, Jim H.
“Of the dozen or so digital marketing companies and consultants we’ve worked with, Catherine Llewellyn is the only one who delivers on her promises and provides real value for our start-up – her SEO and Social strategy got results. It’s just one of the reasons why we keep working with her.”

VAST INTERACTIVE CONSULTING LEADERSHIP

Catherine Llewellyn

Founder | Principal Digital Marketing Consultant | Content Strategist

The way I live my life is the way I partner with clients: with resilience, wit, and the inspiration to make a positive impact.

Featured in VoyageATL Magazine View My Content Strategist Portfolio

I’m Catherine Llewellyn, Founder and Principal Digital Marketing Consultant of Vast Interactive Consulting. I started Vast in 2007 after years at traditional and digital agencies in Account Management because I wanted to create the digital content and bring agency-level digital marketing to small and mid-sized businesses without hefty retainers. I also wanted to be an entrepreneur and remove layers of bureaucracy so I could be hands-on with each client, campaign, and digital asset, from initial concept to performance analytics.

For my clients, I am your digital strategist, content creator, campaign manager, data nerd, and partner in growth. Think of it as hiring the brainpower of an agency, wrapped into one dedicated consultant with deep experience helping brands and businesses succeed in multiple industries, competitive settings, and marketplaces.

Before founding Vast, I worked on national accounts at both traditional and digital agencies in my twenties — Octagon Marketing on BMW, BBDO on Cingular Wireless, and Ant Farm Interactive | nurun on Equifax and GDEcD to name a few. I also applied my skills in corporate roles as an eCommerce Manager and Content Strategist at DS Services (water.com), Razorfish, and Mohawk Industries most recently after COVID, before returning full-time to lead Vast and focus on my company’s vision.

As the Principal Consultant at Vast, I partner with small and mid-sized business owners to turn digital complexity into measurable growth. I specialize in auditing what’s working, refining your unique story, and building lead-generation engines rooted in ROI. My mission is to take the guesswork out of marketing—turning your most ambitious goals into practical, sustainable strategies that make growth feel smart, fun, and sustainable.

If you’re ready to simplify your digital marketing, solve a specific business challenge, or just want to talk Duke Basketball — I’m always up for interesting conversation.

Schedule A Discovery Call With Catherine

Graduate of Duke University

Working with Vast Interactive Consulting, you can expect:

  • Business Strategy with a backbone—clear, actionable, and built to drive results.

  • Professional Digital Content that fits your brand, shows up where it counts, and converts.

  • Digital Marketing Campaigns engineered for growth—whatever the channel, whatever the challenge.

  • Decades of cross-channel marketing experience and partnerships, backed by real-world wins and happy clients.

  • Creatively nerdy problem-solving with serious marketing chops. We keep it real, and expect the same.

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From The Digital Content Studio...