Inboxio

Inboxio is a performance-focused email marketing agency built for ambitious D2C e-commerce brands ready to turn email into their most profitable revenue channel.We specialize in Klaviyo-powered email and SMS marketing - helping brands unlock the full potential of their customer base through strategic lifecycle marketing, advanced automation, and data-driven campaigns. Every client works with a dedicated team of specialists - strategist, copywriter, designer, and technical expert - ensuring deep brand understanding, fast communication, and consistent results. We don't spread our team thin across dozens of accounts. Your brand gets the focused attention it deserves.We work with brands generating $100K–$700K+ in monthly revenue that know email should be doing more. Most come to us with 8–18% email revenue attribution. We help them reach 25–35%+ within 60–90 days through strategic flow architecture, high-converting campaign calendars, advanced segmentation, and continuous optimization.Our services include Klaviyo audits, automated flow development (welcome, abandonment, post-purchase, win-back, VIP, replenishment), strategic campaign management, list growth optimization, deliverability improvement, SMS integration, and transparent reporting tied directly to revenue impact.We serve clients across the USA, South Korea, and Europe from our base in Kyiv, Ukraine - combining international e-commerce expertise with competitive pricing and a relentless focus on ROI.Tired of agencies that deliver pretty templates with no strategy behind them? Let's talk.