Own the relationship, not just the transaction

Klaviyo is the B2C CRM for ecommerce brands. Email, SMS, push, reviews, and customer service, all running off one view of every customer, so your marketing gets smarter as you grow.

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The B2C CRM behind brands that own their growth

Klaviyo is the B2C CRM for ecommerce brands. Email, SMS, push, reviews, and customer service all run off one real-time profile of every customer, built from 350+ integrations with the tools you already use. That means your welcome series, your winback, and your support replies all know the same things: what someone bought, what they browsed, and what they care about. No stitching five tools together. No developer required. Start free, and keep the customer relationships you spend so much to build.

One customer profile

Klaviyo keeps every purchase, click, and preference in one real-time profile, fed by 350+ integrations brands already use.

Agents that act

Klaviyo's agents plan campaigns, build flows, and answer support questions, with the brand setting the goals and guardrails.

Built for ecommerce

Email, SMS, push, reviews, and customer service in one platform, so brands market on what customers actually did

A Message from Jessica Eaves Mathews, Co-Founder

As a fellow woman entrepreneur, I understand the challenges and dreams behind your business. My goal is to give you peace of mind by protecting your brand, content, and innovations—now and as technology evolves. With 30 years of legal experience, I’m here to help you navigate trademarks, copyrights, and AI law, so you can focus on growing your unique business with confidence.

A Message from Jamie Domenici, CMO

Klaviyo was founded by two entrepreneurs in 2012 with a simple mission: empower creators to own their destiny. That mission hasn't changed. I've always believed the best businesses are built on strong customer relationships, and every brand deserves to own those relationships. AI is changing what's possible, doing the heavy lifting so brands can focus on understanding their customers and creating experiences people actually care about. That's what we're building at Klaviyo, and why I'm excited about what's ahead.