Now in private beta
Know your best customers. Find more of them.
Audience and revenue intelligence for ecommerce brands on Klaviyo, their agencies and the tools they run on. Most of your revenue comes from a small group of best customersBest customers are the buyers with the highest lifetime value in your store. They order more often, spend more per order and stay longer. It's usually a small group that brings in most of your revenue.. Your AI can already predict when they'll buy again, what they'll want next and when to reach them. But it only learns from your own store and email data. It still can't tell you who they are, what keeps them buying, or where to find more of them. Fortune 500 brands have used those answers for decades to keep their best customers and find more of them. We're about to change that.
Free. No credit card. We never touch your flows or campaigns.
Audience & Revenue Intelligence for Klaviyo Brands.Do you know which ones they are?
From one brand's transactions over a single period. Your revenue diagnostic shows your own numbers.
Not our first rodeo.
Built inside real Klaviyo accounts, with the brands and agencies who use them.
Paying DTC brands from $1M to over $100M a year, and the agencies behind them, already run Segment Ninja inside their Klaviyo accounts. Their results and feedback shaped everything we're launching.
*Cold email to prospects in three best segments, measured by matchback against the brand's actual transactions. We report ROAS on only the most reliable 30% of matches. 5× is the strictest view: sales matched to the person we emailed, by name, email or address. 17× adds sales by someone else in the same household. The other 70%, matched on last name and ZIP alone, aren't counted. Some are likely real buyers, but we can't confirm which Smith in a densely populated ZIP code bought, so true ROAS is likely higher. ROAS = revenue ÷ media cost. Open rate compared with the 0.5–1.5% industry benchmark for bulk acquisition email.
Klaviyo's AI is getting better fast. Give it better information.
Composer, Klaviyo's agents and its RFM models will make more of your marketing decisions every year. They work from the same kind of data every competitor's AI works from: orders, clicks and opens. RFM is gated by pricing tier, and it only scores what customers have already done. What none of it shows is who your best customers really are, why they buy, and how many more people like them you've never reached. Our customers typically reach less than 0.3% of the buyers who match their best. That means more than 99% of the buyers just like your best customers are still out there.
Segment Ninja shows you who they are and where to find them.
Fortune 500 brands have relied on this kind of audience insight for decades to decide where billions in ad spend goes. They don't let a machine spend that money without people checking its calls against real revenue data. If the data exists and you don't give it to your AI, you're choosing to let it guess with your best customers.
That's what we feed Klaviyo's AI and every other tool in your stack. Same tools. Far better decisions.
Not another segmentation tool. An audience and revenue intelligence layer.
Every tool can build segments. What's missing is the data that tells you which ones are right. Revenue intelligence shows which customers actually make you money. Audience intelligence shows who they are, why they buy and how many more are out there. We sit under the tools you already use and feed every one of them better information.
- Who drives your revenue
- Who's next in line
- Who they really are
- Where to find more of them
What it powers
Klaviyo's AI and agentsRetention and acquisition decisionsYour agency's strategy150+ ad platformsPartner tools built on KlaviyoYour platforms tell you what customers did. Not who they are.
"Klaviyo shows me my VIPs. I still don't know how to get more of them."
Now: see what your VIPs have in common and buy more people just like them, so growth comes from buyers who stick around, not deeper discounts.
"Our flows are dialed in. The list isn't getting any better."
Now: see who's one order from becoming a best customer and put your strongest offers there, where retention spend actually moves lifetime value.
"The AI builds the flows now. Clients are asking what else we bring."
Now: walk into every client meeting knowing who drives their revenue and where to find more. That's the strategy clients keep paying for.
"Lookalikes are a black box."
Now: pick the exact segments that spend the most with your brand and buy them on 150+ platforms. Every dollar goes to people with a track record of buying.
One intelligence layer. Three ways to use it.
Profit Ninja
For ecommerce brands and retention teams
Sorts every buyer into Best, Ready to Grow and Occasional revenue groups, puts them on their Klaviyo profiles, and shows how much growth is already sitting in your list.
Start with a free revenue diagnosticFind the revenue hiding in your list.
Segment Ninja
For agencies, media buyers and growing brands
Shows which buyers spend the most with you and why, then sizes the market you haven't touched. Brands we serve today typically reach less than 0.3% of the buyers who match their best. There's room to grow.
Start with a free revenue diagnosticSee who's behind your revenue.
Profit Multiplier
For brands ready to put spend behind it
Sizes the opportunity in dollars and puts your best audiences in front of buyers on 150+ ad platforms. Then we prove it worked: campaigns are measured by matchback against the new customers and revenue it actually brought in.
5¢ per email. Up to 85¢ back in sales.Cold email to a brand's best-fit segments, measured by matchback.
Start with a free revenue diagnosticSee what your best audiences are worth.
Stop guessing with lookalikes.
A lookalike is Meta's or Google's guess at who resembles your customers. Even if you seed it with your best buyers, the platform decides who's in it, and you can't check what kind of people you're paying to reach. Our audiences start from your own sales data. If one segment has your highest AOV and LTV, you can target that segment by name and know exactly what kind of buyer you're reaching.
Same email, same volume. The right segment drew 2.3× the click rate of the weakest one.Unique click rate, cold email test across three lifestyle segments.
Spend where the revenue is.
Stop paying for customers who rarely come back.
Start with the customers you already have. Most of your revenue comes from a small share of them, so give them your best attention in Klaviyo. Protect them, stop discounting people who'd happily pay full price, and move the next group up, so order value, frequency and lifetime value keep climbing.
Then put acquisition spend behind the audiences that become buyers like them, instead of chasing one-time discount shoppers. Every new best customer gives Klaviyo's AI and the rest of your stack better data to learn from, so each decision sharpens the next.
Better buyers in. Smarter AI out. Better decisions every round.
In one live test, five audiences earned a brand 3.7× more revenue per household than everyone else. The brand had reached fewer than 2 in every 10,000 households in them.
Retention and acquisition run on the same data. The more value you keep from your best customers, the better your AI and your ad spend get at finding the next ones.
Building for Klaviyo brands? Make your product smarter too.
Loyalty, reviews, SMS, direct mail, attribution and ad tech all do better when they know which customers matter most. Plug our audience and revenue intelligence into your product and your customers get better results, without you building it.
Partner with us
We're opening a small number of partner integrations during the beta.
Talk to us about partneringRegister for early access and get a free revenue diagnostic.
Free revenue diagnostics for Profit Ninja and Segment Ninja open to early access first. Register now and we'll reach out as soon as yours is ready. It covers:
- Where your revenue comes from, in dollars
- Your Best, Ready to Grow and Occasional customers
- Where to focus retention and acquisition first
- Next steps, walked through with you
Early access also gets you first use of all three products when the beta opens up, and a direct line to the founders while we build.