Why marketers trust Customer.io for marketing automation

In this article

Whether serving B2B or B2C audiences, today's marketing teams face sky-high expectations. Customers demand tailored, relevant interactions at every touchpoint, while growth teams need measurable results and the agility to deliver them quickly.

Meeting this bar requires the right platform, and we're proud to say Customer.io is the platform of choice for hundreds of marketing teams worldwide. Our expertise in delivering data-driven results without sacrificing creativity or control has recently earned us recognition in G2's Summer 2025 Grid Reports, where we claimed top spots that reflect real customer value.

Recognized by G2 for a reason

With Customer.io, you can move quickly, iterate confidently, and build the experiences your customers actually want. G2 recognized us for:

#9 out of 195 in the Global Marketing Automation Grid Report
#4 out of 177 in the Momentum Grid for Marketing Automation, showcasing rapid growth and customer satisfaction
New placements in 12 regional and niche grids—including standout rankings in the UK and EMEA

...and more! These rankings aren’t just badges. They are proof that marketers are driving stronger and smarter results with Customer.io.

Built for smarter collaboration

What sets Customer.io apart is our ability to combine human creativity with deep data and powerful automation. We help marketers reduce repetitive work, so they can focus on what really moves the needle. Our AI features are designed to be creative partners and enhance your process. From message optimization to journey refinement, our AI works for you and with you while keeping you in control.

You’re always in the driver’s seat. AI just gives you a smarter starting point, where you can fine-tune and send faster and more accurately than ever before.

Scaling up personalization with your stack

Marketers love how easy it is to connect Customer.io with the rest of their tech stack, like Snowflake, Segment, and more. That means you can build rich profiles, trigger personalized messages in real time, and engage with actual behavioral data across the lifecycle.

“
“Before Customer.io, our marketing efforts were scattered. Now, thanks to the Snowflake integration and smart segmentation, we can reach the right people at the right time.”

More time for creativity, less drudgery

You can launch powerful campaigns in minutes with visual workflows, behavior-based triggers, and real-time data. Our visual workflow builder is a game-changer for customers, empowering them to build multi-channel campaigns with A/B or multivariate testing all on one screen.

“
“Customer.io helps us automate messaging across every touchpoint—from onboarding to re-engagement. It’s increased conversions and engagement without adding headcount.”

Insights that drive results

Not only does Customer.io help you learn from what’s working, but our platform also helps you constantly optimize your customer messages as you go. Use AI-powered insights to build audience segments, optimize campaigns, and more, all without needing development or engineering support.

“
“Before Customer.io, our onboarding felt generic. Now, we trigger personalized messages based on what users are actually doing in our product.”

Trusted by marketers because we deliver

Our G2 rankings aren’t driven by hype but by real customer feedback. A top 10 global spot reflects what thousands of marketers already know: Customer.io gives you the flexibility, insight, and speed to stay personal at scale.

In a crowded MarTech landscape, we keep it simple: focus on what works, fast execution, measurable impact, and tools that accelerate growth.