Ecommerce, Design & Marketing Services

Accelerating business growth through data-backed UX design, Shopify Plus eCommerce Development & Klaviyo Email Marketing

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  • UX Design & Development

    Delivering complex commerce solutions at scale. As a NYC Shopify Plus Partner Agency, we build fast, beautiful, and high-performing eCommerce websites that increase conversions. Our team of designers, strategists and developers will bring your vision to life.

    • UX/UI Design
    • Shopify Plus Development
    • Bespoke 3PL Integrations
    • Solution Architecture
    • Headless Commerce
    View UX Design & Development
  • Email Marketing & SMS

    Revenue-generating Klaviyo email marketing services to fuel your brand’s growth. Our team of eCommerce experts, designers, marketers and copywriters, work together to support your marketing goals.

    • Email marketing audits
    • Campaign design
    • List growth & segmenting
    • Klaviyo Flows
    • AB testing
    • SMS marketing
    • Copywriting
    View Klaviyo Services
  • Conversion Rate Optimization

    CRO & monthly support to increase sales. “Growth X” is our strategic support process for optimizing and scaling eCommerce brands. From ecommerce design and development to conversion rate optimization & analytics.

    • Conversion Rate Optimization
    • AB Testing
    • Personalization
    • Analytics & Heat Mapping
    • eCommerce Consulting
    View Conversion Rate Optimization
  • Creative & Branding

    Our creative directors and designers have worked with brands such as KITH & Hugo Boss to provide design support and direction. From branding and content strategy, to campaign design and social media assets.

    • Branding & idenity
    • Copywriting
    • Creative direction
    • Style guides
    Contact us to learn more
  • Headless Commerce

    Headless commerce delivers a more robust commerce experience for high-growth & enterprise brands. Utilizing APIs, JAMStack and PWA technology, headless commerce provides sub-second page speeds & unlimited control over content.

    • Shopify Plus
    • JAMStack
    • Contentful CMS
    • Gatsby, Next.js, React
    Contact us to learn more
  • Page Speed Optimization

    Whether you need to rebuild and migrate your website or optimize your current store. We build and optimize insanely fast, high-performing Shopify Plus websites.

    Our Development Services
  • Platform Migrations

    We've handled complex data migrations from eCommerce platforms such as Magento, BigCommerce, Woo Commerce and custom solutions. Our data migrations are safe and secure, with a focus on SEO and 301 redirects. We'll migrate customer data, products, content, order history and more.

  • SaaS & Integrations

    We partner with some of the best SaaS companies in the world to deliver a best-in-class commerce experience. Yotpo, Klaviyo, ReCharge, Gorgias, Bold and many more.

    Avex can also create bespoke integrations to connect your ERP, CRM, PIM other systems, so you can focus on growing your brand.

    Contact us to learn more
  • eCommerce Discovery

    Tech, design & brand discovery workshops. Our eCommerce strategists will conduct a deep dive into your eCommerce website and business. We'll learn about your goals and identify revenue opportunities. View examples of Avex's website work with DTC brands

    • Stakeholder interviews
    • Analytics & user-testing
    • UX audits
    • Technology & SaaS
    • Omni-channel strategy
    • Content & brand strategy
    View eCommerce Discovery
  • ADA Compliance

    We don't only ensure our eCommerce websites look amazing, but that they are also accessible to everyone. Our designers & developers create websites that meet WCAG 2.1 AA standards. Avex will also suggest a third party for accessibity reviews.

    Contact us to learn more

Our core services are extremely focused on what we do best – growing your business through data-backed UX design, cutting-edge technology, eCommerce optimization and email marketing.

Contact us

We take a data-backed approach to delivering high performing eCommerce websites & Klaviyo email marketing campaigns. From platform migrations and website redesigns to complex Shopify Plus builds and commerce optimization. Our eCommerce services are tailored to grow your business.

Contact us

Commerce Discovery

  • Listen to understand your business & goals
  • Get to know your customers via analytics
  • Define KPIs and create objectives together
  • Create a strategic plan for commerce execution

Commerce Execution

  • UX Design and technology implementation
  • Launch your eCommerce experience
  • Create a roadmap for future growth
  • Test, analyze, optimize and repeat

Our Process

We don't make websites. We produce business results.


Commerce Discovery

avex team reviewing a scope of work

Commerce Discovery

Through conversations, analytics and user-experience audits, our ecommerce solutions experts gain a deep understanding of your business and goals. We listen, learn, advise and ask questions to collectively define KPIs and create an ecommerce plan.


Commerce Execution

avex team reviewing a client design

Commerce Execution

After the commerce discovery, our UX/UI designers and full-stack developers craft on-brand and pixel-perfect eCommerce stores that are optimized for conversions. Our development team works side-by-side with designers and strategists to build, integrate, and launch.


Growth-X Optimization

browsing newly launched website on i phone x

Growth-X Optimization

Growth-X is our strategic support process for supporting, testing and optimizing your eCommerce store & email marketing campaigns. From AB testing and personalization, to development and email marketing. We monitor analytics, heatmaps and performance, to ensure your business is growing.

Our Partners

shopify plus logo
klaviyo logo
gorgias logo
yotpo logo
bold ecommerce logo
optimizely logo
mail chimp logo
klarna logo
Route Logo
Recharge logo
Shipstation logo
Cart 2 Cart Logo
Shogun Logo
Nosto Logo
Skubana Logo
VL Omni Logo

Let’s work together

Tell us your business goals and we’ll see how we can create something amazing together.

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