Guy Barnhart | Klaviyo Alumni | ESP Expert in Automations, Audience Segmentation & Deliverability | Database Optimization & Retention Strategist | DTC Email Marketing Specialist

Hi, I’m Guy Barnhart, an email marketing expert specializing in DTC e-commerce.

With over a decade of experience, I help brands build and execute email strategies that drive engagement, retention, and revenue. From automations to targeted campaigns, I deliver measurable results by blending creativity with data-driven insights.

My only goal is to turn email into your most powerful revenue channel. Let’s make it happen.

🔍 Strategy Development
Crafting tailored email marketing strategies that align with your business goals and drive measurable results.

🔄 Workflow & Automation Setup
Building seamless, high-performing workflows and automations to nurture leads and enhance customer journeys.

📩 Campaign Execution
Delivering engaging, on-brand email campaigns that convert subscribers into loyal customers.

⚡ Deliverability Optimization
Ensuring your emails reach the inbox by improving sender reputation and maintaining list hygiene.

👥 Audience Segmentation
Targeting the right people with the right message using advanced segmentation strategies.

📊 Performance Analysis
Analyzing data and providing actionable insights to continuously improve your email marketing ROI.

I spent six years growing a brand from a Kickstarter campaign to seven figures in annual revenue, then two years at Klaviyo helping hundreds of brands optimize their email marketing as an Implementation Specialist. Now, I’m here to put that hands-on experience to work for you—let’s grow your business together.

Logos of brands: Klaviyo, Teva, and Pok Pok with text "Brands I've Worked With" above them.
Logos of brands: Greens First, DIY Hairpin Legs, Insomnia Cookies with text "Brands I've Worked With" above them.
Logos of Icemule Coolers, Sanuk, and Gatorade with text "Brands I've Worked With" above them.
Logos of brands Classic New Zealand Sheepskins, United Way, and Semi Exact with text "Brands I've Worked With" above them.

Endorsements and Testimonials

  • "We had a database full of old contacts. We had demographics but Guy came in and built out a psychographic overlay that allowed us to tailor a variety of tactics to reinvigorate this list. With a mix of direct mail, email and very targeted social media ads we were able to salvage almost 40% of this list. Thousands of contacts that we can now use in our marketing efforts."

    Jonathan - DTC Nutritional Supplement Brand

  • "Guy was the guy. He was super helpful in giving us all the tools we needed to get our Klaviyo account connected to Shopify, ZenDesk and a couple other apps from our ecomm tech stack. He was full of awesome ideas that gave our team plenty to think about."

    Trevor - DTC Apparel Brand

  • "We added Klaviyo to our tech stack at the most inconvenient time of the year - the holidays. Guy didn't sweat it one bit. He was able to help us prioritize our sales/marketing needs during the transition in a way that allowed us to achieve our goals without damaging our Sending Reputation. I would hire him again."

    Sandro - DTC Electronics Brand

  • "I am incredibly impressed with Guy's breadth of knowledge, not only about Klaviyo but his holistic perspective when approaching our digital marketing problems. He not only made recommendations that improved email deliverability but also drove hundreds of engaged leads via a Facebook Campaign he helped us set up!"

    Sara - DTC Cosmetics Brand

  • "I am extremely busy managing operations at my company Classic Sheepskins NZ . Guy was punctual to each one of our weekly check-ins and left me with an actionable plan to continue optimizing my Klaviyo account over the next year. I look forward to working with him again in the future."

    John - DTC Retailer

  • "Guy was able to hop into our account, get everything integrated, set up our core flows and train me how to send campaigns in less than a week! I hope I am able to get more budget so we can work together again soon."

    Jessica - DTC Children’s Boutique