With the right email marketing tool like Klaviyo, email marketing can be a highly effective strategy for engaging with clients and driving revenue growth. However, even after it’s quite difficult for someone without experience to manage such an advanced tool successfully to reach their engagement and conversion goals.
Klaviyo experts who are familiar with the platform can help you take your email campaigns to the next level and beyond if you’re not proficient in email marketing yourself. Here, we prepared a list of professionals whose skills and knowledge people recognize as top-tier.
What is a Klaviyo Expert?
Before introducing our top picks among marketers, let’s clarify who Klaviyo email experts are.
A Klaviyo specialist utilizes Klaviyo’s tools and capabilities of the platform, including automating campaigns and gathering data, to maximize the reach of your brand and drive marketing results through targeted emails.
This specialist will take responsibility for your major marketing processes involving the platform, handling campaigns, and other tasks, depending on their service range. You will have a specialist on your team who can utilize Klaviyo’s advantages and refine your email marketing tactics if you hire a Klaviyo expert.
Why You Need Klaviyo Specialists?
Currently, Klaviyo is one of the most potent platforms in terms of email marketing automation, with a bunch of advanced features and tools. If you’re not using its functionality to the max, you’re losing money and opportunities for growth.
When used by a professional marketer, Klaviyo can make the connections between email, performance marketing, and social media marketing. Employing a professional Klaviyo consultant may help you take advantage of this tool’s sophisticated features, promote your business, and accomplish your expansion objectives.
Experts from Klaviyo will understand how to maximize the advertising instrument. Among the advantages are:
- Developing more successful email campaigns.
- Increasing the pace of conversion.
- Establishing email marketing processes.
- Ensuring the security and compliance of your email list.
- Making your emails and campaigns more efficient by implementing personalization tactics.
- Preventing spam folders from receiving your emails.
- Ensuring the success and delivery of emails.
- Locating and focusing on new client segments.
- Tracking and enhancing the effectiveness of marketing campaigns.
- Utilizing data analysis to put tactics into action that increase sales.
- Utilizing the information that Klaviyo gathers from a range of digital channels and sponsored social media marketing platforms.
- Combining your other digital techniques with your email marketing initiatives.
- Assisting you in expanding your efforts in inbound marketing.
Our Recommendations of the Best Klaviyo Experts
Omar Lovert

Experience: 13+ years
Country: the Netherlands
Klaviyo Certification: Official Klaviyo Legend, Klaviyo Master Platinum Partner
Brief Overview
Omar Lovert is a top-tier ecommerce growth strategist and the first-ever Official Klaviyo Legend, focusing on customer journey optimization using Klaviyo, CRO (Conversion Rate Optimization), and CVO (Customer Value Optimization). He founded Polaris Growth to help online merchants uncover hidden growth opportunities through data-driven frameworks, behavioral psychology, and targeted automation. With over a decade of experience, including 13+ years of improving digital experiences, Omar provides demonstrable, long-term increases in retention, AOV, and revenue across a wide range of ecommerce sectors.
Specialties
- Email Marketing
- Growth Marketing
- Marketing Consulting
- Marketing Strategy
- Market Research
- UX Research
- Copywriting
Why Choose
Omar Lovert offers expert insights on creating scalable, data-driven growth strategies to transform your ecommerce site into a high-performing revenue generator.
Konstantin R.

Experience: N/A
Country: Ukraine
Klaviyo Certification: N/A
Brief Overview
Konstantin R. is a results-driven email and SMS marketing professional who helps ecommerce firms scale to 8–9 figures by implementing proven techniques. As the founder of Konstant Growth, he uses a $50 million-tested approach to execute consistent, high-ROI campaigns across different niches. Konstantin is a Klaviyo and direct-response marketing expert who values owned channels over sponsored traffic.
Specialties
- Retention Strategies
- Email Marketing
- Klaviyo
- Online Advertising
Why Choose
Konstantin R. provides actionable insights on scaling ecommerce brands using high-ROI email and SMS marketing strategies proven to outperform paid ads.
Stephanie Griffith

Experience: 12+ years
Country: USA
Klaviyo Certification: Deliverability Certified
Brief Overview
Stephanie Griffith is a seasoned retention marketing strategist with over 12 years of experience generating millions of dollars in sales for Fortune 500 and DTC ecommerce firms via email and SMS marketing. She founded DTC Consulting and emailpreview.io, which combine significant technical experience in Klaviyo with a passion for human-centric communications throughout the client lifecycle. Stephanie is known for transforming high-level strategy into scalable execution, enabling brands and SaaS vendors to improve communication, loyalty, and conversion through owned marketing channels.
Specialties
- Omni-Channel Marketing
- Email Marketing
- SMS Marketing
- Email Management
- Klaviyo
- Ecommerce Consulting
- Others
Why Choose
Follow Stephanie Griffith for expert-level insights on lifecycle marketing, retention strategy, and cutting-edge email/SMS tactics that move the revenue needle.
Thomas Lalas

Experience: 15+ years
Country: USA
Klaviyo Certification: N/A
Brief Overview
Thomas Lalas is an experienced retention marketing strategist and Klaviyo Champion who works with 8-9 figure eCommerce firms to increase customer lifetime value using data-driven email, SMS, and subscription tactics. Thomas has over 15 years of expertise and a proven track record with top-tier businesses such. As the founder of The Art of eComm and a sought-after fractional director, he specializes in transforming the first 14 days of the customer journey into a foundation for long-term retention and recurring purchasing.
Specialties
- Customer Retention
- Retention Strategies
- Email Marketing
- SMS
- Copywriting
Why Choose
Thomas Lalas provides real-world retention marketing data and high-growth brand experiences to convert first-time shoppers into loyal customers.
Adam Kitchen

Experience: 15+ years
Country: United Kingdom
Klaviyo Certification: Klaviyo Product Certified
Brief overview
Adam Kitchen is the creator of Magnet Monster, a top 0.2% Klaviyo Elite Partner firm that reimagines email marketing by emphasizing long-term client value above short-term revenue spikes. Adam’s unique “email beyond revenue” attitude helps 150+ DTC brands use email to improve acquisition, retention, and product development. He is also the founder of Content Army, where he helps busy B2B owners scale their businesses via strategic, efficient content infrastructure. Testimonials characterize Adam as a thought leader in ecommerce and personal brand development, with extensive experience in retention, copywriting, and content-driven growth.
Specialties
- Email Marketing
- Content Marketing
- Social Media Marketing
Why hire?
Consider Adam Kitchen for advanced insights on retention marketing, brand-building through content, and a forward-thinking strategy to email that goes beyond the inbox.
Sarah Brereton

Experience: 12+ years
Country: United Kingdom
Klaviyo Certification: N/A
Brief Overview
Sarah Brereton is a seasoned CRM consultant and marketing automation specialist with over 12 years of experience improving customer retention and lifecycle value for top eCommerce and digital product companies. As the creator of Level Fifty Three and former Head of CRM at Gymshark, she has designed and scaled CRM infrastructures that have directly contributed to exponential business growth. Sarah specializes in Klaviyo and other top-tier platforms and works with high-growth D2C brands to create intelligent customer journeys, loyalty strategies, and long-term brand advocacy across various channels.
Specialties
- Email Marketing
- Marketing Consulting
- Direct Mail Marketing
- Lead Generation
- Marketing Strategy
- Management Consulting
- Data Reporting
Why Choose
Sarah Brereton provides cutting-edge insights into CRM innovation, Klaviyo-driven retention strategy, and increasing customer value through tailored, data-driven lifecycle marketing.
Rich Evans

Experience:
Country: United Kingdom
Klaviyo Certification: N/A
Brief Overview
Rich Evans is a seasoned Klaviyo email expert and the creator of Get Better Limited, where he assists eCommerce firms in realizing the full potential of email marketing. Rich, who has built a £1M+ digital business and consulted for big brands, delivers hands-on experience, strategic clarity, and a done-for-you approach to boosting income through high-performing Klaviyo flows, campaigns, and customer-nurturing systems.
Specialties
- Marketing Communications
- Klaviyo Management
- Account Management
- Digital Marketing
- B2B Marketing
Why Choose
Follow Rich Evans for straightforward email marketing insights, practical Klaviyo techniques, and tried-and-true tactics for scaling your ecommerce business with clarity and confidence.
Jordan Erickson

Experience: 10+ years
Country: USA
Klaviyo Certification: N/A
Brief Overview
Jordan Erickson is the Director of Lifecycle Marketing at GRO, where she oversees a team managing a substantial monthly retention income across D2C and B2B brands. Jordan has over a decade of expertise, ranging from operating her own firm to creating full-funnel client journeys. She combines data-driven strategy with creative execution to enhance engagement, retention, and lifetime value. Her interest is translating touchpoints into impactful experiences that foster commitment and long-term growth.
Specialties
- Customer Loyalty
- Email Marketing
- Email Marketing Software
- Marketing Management
Why Choose
Jordan Erickson can give you insights on scaling retention revenue, building high-performing lifecycle strategies, and leveraging email/SMS to create lasting customer relationships.
Israa A.

Experience: 8+ years
Country: USA
Klaviyo Certification: N/A
Brief Overview
The Winbox’s founder, Israa A., is a top email deliverability consultant with a reputation for transforming DTC firms that are having trouble retaining customers. She specializes in assisting Shopify enterprises in overcoming their reliance on paid advertisements by developing long-lasting, effective CRM and using email marketing systems like Klaviyo. On her LinkedIn profile, she states to have over $113M in email-driven income under her belt. With a straightforward, results-driven approach that truly works, she has earned a reputation as the “Grumpy Cat” of email marketing by fusing technical know-how with astute copy and conversion strategy.
Specialties
- Marketing Consulting
- Business Consulting
- Brand Consulting
- Content Strategy
- Email Marketing
- Product Marketing
- Marketing Strategy
- Growth Marketing
- Content Marketing
Why Choose
Learn from Israa A. how to create stress-free, profitable retention systems that increase deliverability, reduce churn, and make emails your most important source of income.
Wiehan Britz

Experience: N/A
Country: South Africa
Klaviyo Certification: Deliverability Certified, Klaviyo product certificate, SMS Strategy Certificate
Brief Overview
Wiehan Britz, the founder of AlforEmail Marketing.com and CEO of Magnet Monster, uses smart email and SMS tactics to assist 7- to 9-figure DTC firms achieve significant growth. Wiehan, who is well-known for his straightforward, high-impact strategy, has transformed retention channels into high-converting income generators while working with well-known brands. He is also the creator of the top-ranked Al blog for email marketing, demonstrating that he is not just growing brands but also influencing the direction of lifecycle marketing in general.
Specialties
- Email Marketing
- Retention Marketing
- Mobile Marketing
- Email Design
- Direct Mail Marketing
Why Choose
To understand how to scale your ecommerce brand using email and SMS tactics that truly make a difference, consider Wiehan as your Klaviyo specialist.
Sara Decker Lund

Experience: N/A
Country: USA
Klaviyo Certification: Product, Sales, Partner, & Deliverability, SMS Strategy Certificate,
Brief Overview
Sara Decker Lund is a results-oriented email marketing specialist who works with DTC ecommerce brands to increase open rates, clicks, and conversions through strategic planning, writing, and design. She brings a track record of successful campaigns and customer-focused creativity to her role as the founder of Lund Creative and CRM Specialist for different companies. Sara transforms email into one of the most lucrative platforms for contemporary ecommerce companies due to her sharp analytical mind and drive for expansion.
Specialties
- Email Marketing
- Copywriting
- Digital Marketing
- Marketing Strategy
Why Choose
If you want to use Klaviyo to convert surfers into devoted customers, consider Sara for useful, tested practices of email marketing that work.
Tobi Chapman

Experience: 3+ years
Country: United Kingdom
Klaviyo Certification: Klaviyo Product Certification, Klaviyo Product Certification
Brief Overview
Tobi Chapman is the founder of Everboost, a retention marketing consultancy that helps 7–8 figure DTC brands transform client connections into engines of long-term growth. Beyond Meta advertising, Tobi develops data-driven tactics that increase LTV, repurchase rates, and profitability. Tobi specializes in email, SMS, and direct mail. His service expertise is aimed at helping companies achieve consistent, compounding income through effective retention by putting a heavy emphasis on the full customer funnel.
Specialties
- Email Marketing
- Ecommerce
- Copywriting
- Klaviyo
- Email Design
- Marketing Strategy
- Digital Marketing
- Direct Mail Marketing
Why Choose
If you’re prepared to get rid of leaky funnels and discover how the leading direct-to-consumer brands are growing financially with more intelligent retention marketing, turn to Tobi.
Hannah Spicer

Experience: 20+ years
Country: United Kingdom
Klaviyo Certification: Klaviyo Product Certified; Klaviyo Sales Certification; Klaviyo Partner Certification; Deliverability Certification; Klaviyo Product Certificate; Deliverability Credentials
Brief Overview
Hannah Spicer is a seasoned Klaviyo consultant and email marketing strategist who helps premium and luxury retail brands turn email into a high-performing revenue channel. With over 20 years of experience and deep Klaviyo expertise, Hannah offers to transform underperforming CRM strategies into segmented, automated, and branded customer journeys that drive engagement, conversions, and loyalty.
Specialties
- Online Marketing
- Klaviyo for Premium and Luxury Retail Brands
- Social Media
- Email Marketing
- Mobile Marketing
Why Choose
Follow Hannah to learn how top-tier fashion and lifestyle brands elevate their email marketing with elegant strategy, advanced segmentation, and Klaviyo mastery.
Brenden Rawson

Experience: 10+ years
Country: Australia
Klaviyo Certification: N/A
Brief Overview
Brenden Rawson is the founder and CEO of Andzen, a top retention marketing firm that uses email, SMS, and customer experience marketing to help eCommerce firms thrive. As a member of Klaviyo’s Partner Advisory Council and with more than a decade of expertise, Brenden has helped to shape the future of lifecycle marketing by scaling Andzen internationally. Building operational excellence that yields scalable outcomes for clients is his primary emphasis.
Specialties
- Email Marketing
- Content Marketing
- Mobile Marketing
- Professional Services
- Corporate Governance
Why Choose
For information about Klaviyo best practices, high-level retention tactics, and scaling ecommerce operations with a customer-first mentality, consider Brenden.
Lauren Barret

Experience: 7+ years
Country: United Kingdom
Klaviyo Certification: Klaviyo Product Certified
Brief Overview
Award-winning freelance Klaviyo specialist Lauren Barrett works with ecommerce firms to increase retention through more intelligent email and SMS tactics. With more than 100 Klaviyo accounts optimized and more than 7 years of experience, she connects strategy and execution to streamline CRM and provide outcomes. Brands rely on Lauren, a two-time Klaviyo Klicks winner and guest speaker at Klaviyo London 2024, for her practical assistance, performance focus, and clarity.
Specialties
- Email Marketing
- Marketing Strategy
- Mobile Marketing
- Marketing Consulting
- Content Strategy
- Copywriting
Why Choose
For helpful, high-performance retention marketing advice and knowledgeable Klaviyo tactics that have been shown to increase customer lifetime value and lifecycle efficiency, choose Lauren.
Obeth Seguinot

Experience: 20+ years
Country: Puerto Rico
Klaviyo Certification: Klaviyo Master
Brief Overview
Obeth Seguinot is a Klaviyo Master & 2025 Community Champion, Shopify Expert, and co-founder of ED Digital, Puerto Rico’s top eCommerce growth agency. With over 20 years of sales and digital experience, he’s helped DTC brands worldwide generate over $40M in revenue through expert retention strategies, smart segmentation, and personalized email & SMS campaigns.
Specialties
- Email Marketing
- Marketing Consulting
- Advertising
Why Choose
Obeth offers expertise in scaling DTC brands with Klaviyo and Shopify, plus powerful growth strategies from a global eCommerce leader and educator.
Improve Your Klaviyo Strategy with Flowium
Hiring experts can be quite beneficial, regardless of whether you’re opening your first Klaviyo account or trying to improve your email marketing approach. They can assist you in making the most of Klaviyo to increase sales and create enduring relationships with clients.
With Flowium, a certified Klaviyo agency, you can avoid the hassle of finding and considering the right specialists with the right expertise for your particular challenges. We’ll provide you with a dedicated team of Klaviyo marketing experts who will quickly offer an effective strategy, set up processes, and resolve optimization concerns. Contact us right now for a Klaviyo audit and professional consulting.