Built for established ecommerce brands doing $100K+/month. We beat your welcome flow - or you pay nothing.
We average 30–50% attributed email revenue for the ecommerce brands we run - and it starts with the welcome flow. Three emails, built free inside your Klaviyo or Omnisend and split-tested against your current flow for one week. Ours make more money - you decide about the rest. They don't - you pay nothing and keep the emails.
STARTS WITH A 30-MIN AUDIT CALL · NO CARD · NO CONTRACT
Lift depends on traffic, list size, offer and how your current welcome flow performs.
Ecommerce experience. Not borrowed confidence.
“Our email revenue has doubled since working with them. Their designs and flows are best in class.”
“They've driven more revenue and actually know what they're doing with email marketing. The results have lined up with what they promised from the start.”
“Sunlo took our email revenue from under 30% to 50%. They have a great team and are super responsive. I have no negatives to report.”
01 / RESULTS · REAL KLAVIYO DASHBOARDS
The trial touches emails 1–3 only; the £52,405 card is the welcome flow on its own. The dashboards below are what the full system did afterwards - unedited Klaviyo screenshots, nine flows plus campaigns, and the welcome flow is where each one started.
Welcome flow, on its own
Lifted straight from a monthly report we send clients. Email was 37.7% of store revenue that month, and the welcome series was the single biggest earner - ahead of abandoned checkout and browse abandonment.
▪ UK BRAND · KLAVIYO FLOW ANALYTICS · LAST 30 DAYS · GBP
Top flow performance (last 30 days)
Fashion & Apparel
No campaigns, no flows, a list sitting unused. We built nine flows - starting with the welcome series - launched two campaigns a week to engaged segments, and rolled out pop-ups that captured 9× more emails.
Wellness & CBD
Three default Klaviyo flows and the occasional blast. We rebuilt the strategy from the welcome series up, used pre-launch campaigns to segment engaged buyers, then hit them on launch day. Some releases sold out within hours. Store revenue dipped ~5% month-on-month that period (~$2.5M/mo); the change is email doing 30% of it instead of 9%.
Fitness Equipment
Email was doing 20% of revenue. A full audit, a rebuilt communication structure and a re-sequenced welcome journey took it to 42%, then to 55% of total revenue within 60 days.
★★★★★ “Brilliant – can't fault, we're so pleased with the progress made in such a short space of time.” - BULLDOG MARKETING · PUBLIC REVIEW · SEP
02 / WHY START HERE
Every new subscriber sees it. It fires at the exact moment intent is highest. And in most accounts we audit, it's still the one- or two-email default that shipped with the platform.
Fix the first three emails and everything downstream tends to improve: campaigns land on a list that already trusts you, abandonment flows convert warmer traffic, and your first-purchase rate - the number the whole business compounds on - moves.
03 / THE FREE TRIAL · HOW IT WORKS
Most agencies ask you to pay, then hope. We do it the other way round - carry the build ourselves, put the numbers side by side in your own dashboard, and let the result make the case.
▪ TYPICAL TIMELINE - AUDIT, BUILD, THEN A ONE-WEEK TEST
A 30-minute call, then read-only access to your Klaviyo or Omnisend. We pull the numbers that matter on your current welcome flow and agree, in writing, how the winner will be judged.
Strategy, copy, mobile-first design and the build inside your account - QA'd and set live. Your brand, your voice, our system.
A random split inside your welcome flow for seven days: half of new subscribers get your current emails, half get ours. You read both sets of numbers in your own Klaviyo or Omnisend - no edited screenshots, no vanity metrics.
04 / WHAT'S INCLUDED · AT NO COST
This is the front of the nine-email welcome series we build for every client - not a stripped-down sample. Each one is written, designed and built to the same standard as paid work.
SENDS IMMEDIATELY ON SIGN-UP
SENDS ~1 DAY LATER · NON-BUYERS
SENDS ~2 DAYS LATER · NON-BUYERS
Continue after the trial and the same team runs every part of email for you - the flows, the campaigns, the testing and the advice that comes from having built ecommerce brands ourselves.
Welcome 4–9, abandoned cart, checkout & browse, post-purchase, win-back, sunset, back-in-stock and cross-sell - built, sequenced and live.
A planned calendar of launches, promos and content sends, written and designed for you - sent to segments that want them, not the whole list.
Engaged, VIP, lapsed, non-buyer and product-interest segments so every send lands on the right people, and deliverability stays healthy.
Subject lines, offers, send times and designs tested continuously. Winners get rolled into the flows, so the system compounds.
On-site forms tuned to your traffic and offer - one client captured 9× more emails after we rebuilt theirs.
Sending patterns, warm-up and sunsetting that keep you in the primary inbox. A flow that hits spam earns nothing.
Offers, pricing, launches, bundles, retention strategy - from founders who've run and scaled their own stores since 2016.
Synced with email so nobody gets hit twice, used for the moments a text genuinely outperforms an email.
A monthly report that ties every flow and campaign to revenue - what worked, what's next, where the growth came from.
05 / HOW WE BEAT YOUR CURRENT FLOW
There's no trick. A welcome flow outperforms when it's sequenced, designed, targeted and measured like the revenue channel it is - instead of a discount reminder or two in a platform template.
Around 80% of your list reads on a phone. Every email is designed mobile-first from a blank canvas - no drag-and-drop, no template look.
Purchasers are suppressed the moment they buy. Non-buyers get the full sequence. Nobody gets a “welcome discount” after they've already paid full price.
Send gaps tuned to your purchase cycle and price point - fast for impulse categories, patient for considered ones - not the platform's arbitrary defaults.
Copy and sending patterns built to land in the primary inbox. A flow that hits spam earns nothing, however good it looks.
We judge the trial on placed-order rate and revenue per recipient - the numbers that pay you - not opens, which say nothing about money.
06 / DESIGNS
A mix of client sends and concept redesigns - every one built from a blank canvas in the brand's voice. Tap any email to read it full-size.
07 / CLIENT REVIEWS · 5/5 · 55 REVIEWS
Every word below is a verbatim public review from a client, none of them invited. Brand owners wrote these because the numbers moved.
“Wish i joined them sooner. They have increased our attributed revenue from email by 40% which is absolutely brilliant! Can leave them to run our retention with peace of mind.”
“Sunlo has been so incredible to work with. They totally turned around our email marketing and are now able to pull in 30+% revenue for our company in their emails alone. Couldn't recommend them more for any ecomm brand looking to grow and foster their community.”
“I run an e-commerce business and have been absolutely delighted with the work Sunlo have done for me. They are straightforward and easy to work with as well as being extremly experienced… I've been blown away by their results.”
“It's rare to find an agency that feels like an extension of your own team, but that's exactly how it feels working with Sunlo… they actually understand e-commerce and what drives revenue. 10/10.”
“Its impossible to see the numbers and argue the fact that they pay for themselves 10x over!”
“Even if I was running a 100 million dollar per month company, I would use Sunlo for email marketing. They are at the top of their game.”
“They've beaten all the metrics for my previous email auto flows and campaigns with ease. Their designs are premium and professional.”
“I've worked with a lot of email marketing agencies over the years but none have been as good as Sunlo. The team just get it - patient, speedy, creative and really know what they're doing.”
“I worked with Sunlo Consulting to build out from scratch my email marketing and the experience was the best an agency has ever provided. They delivered on time and communicated every step of the way.”
“We have burnt through many companies who have over promised and under delivered and the team at Sunlo has done the opposite.”
“I would describe the team and professional, strategic, and effective. They have helped transform the effectiveness of our email campaigns across the board.”
“What stands out most is how well they understand our brand and messaging - they don't just “get it,” they live it. They feel less like an outside partner and more like a true extension of our team.”
“They've driven more revenue and actually know what they're doing with email marketing. The results have lined up with what they promised from the start.”
“The impact was immediate from day 1. Communication is clear, timelines are met, and we always feel like we're in capable hands.”
“Go above and beyond with attention to detail to make every email a piece of art. We get so many compliments on our emails now too.”
“The KPI's had significant improvement over just 30-60 days. What's even better is the fact that they provide in depth weekly reviews of our account.”
55 PUBLIC CLIENT REVIEWS · 100% FIVE-STAR · NONE INVITED
08 / WHY BRANDS WORK WITH US
You've already paid to acquire the subscriber - retention is the cheapest revenue you'll earn. The only question is who builds the system that turns them into a customer, and whether you pay before you know it works.
We carry the cost of the audit and the build. You judge on placed-order rate and revenue per recipient in your own dashboard - and keep the emails whatever you decide.
The welcome flow is step one. Continue and we run the lot - all nine flows, weekly campaigns, segmentation, A/B testing, pop-ups, deliverability and the ecommerce advice behind it - the system that typically runs 30–50% of attributed revenue through email for our clients.
09 / WHO THIS IS FOR
WE'LL BE A GREAT FIT IF
PROBABLY NOT FOR YOU IF
10 / FAQ
Yes. Strategy, copy, design, build and launch of three welcome emails inside your Klaviyo or Omnisend - no card, no invoice, no deposit. If they outperform your current flow and you want the rest of the system, that's a monthly retainer we agree on together. If they don't, you keep the emails and we part as friends.
Placed-order rate and revenue per recipient, over the same period and the same audience, read directly from your Klaviyo or Omnisend flow analytics. We agree the measurement on the audit call before anything is built, so there's nothing to argue about later.
Yes, and it's the cleanest benchmark you'll get on them. The split lives inside your welcome flow only; nothing else in the account is touched, and whoever runs your email keeps running every other flow and campaign throughout. We need one read-only login for the audit and one build seat for the three emails. If our three don't beat theirs, you've lost nothing and kept the emails. If they do, you have a number to take into that conversation, not our opinion.
Then we build one and benchmark it against your current signup-to-first-purchase baseline. In our experience that's usually the biggest lift of all.
Read-only access to your Klaviyo or Omnisend for the audit, then a user seat for the build - both requested only after we've spoken, never before. Plus your brand assets (logo, fonts, colours, product imagery) and a short call about your products and customers.
Typically a week or two to audit and build, then a one-week head-to-head test. If the numbers are too close to call after seven days, we agree an extension on the spot - we'd rather be right than quick.
Klaviyo and Omnisend - we run both daily and the trial works the same way in either. On a different platform? Mention it when you book; if a move is on the cards we'll scope it on the call and tell you honestly whether it's worth it.
Nothing continues automatically. If our flow wins, the three emails stay live and stay free. If you want the rest, it's a rolling monthly retainer - one flat fee, no revenue share, 30 days' notice - covering the remaining six welcome emails, the other eight flows, weekly campaigns, segmentation, A/B testing, pop-ups and list growth, deliverability, SMS where it fits, monthly reporting and hands-on ecommerce advice. We quote it on the audit call once we've seen your account, and you can say yes, no or later; the emails are yours either way.
The senior team you meet on the call. Sunlo's founders have run their own ecommerce brands since 2016 and have built retention systems for 100+ brands - no juniors, no handoffs.
Yes. We run deliverability-aware, claim-safe email for restricted brands and won't write aggressive health or product claims. Tell us the category when you book and we'll build accordingly.
We guarantee one thing, and we put it in writing: if our three emails don't make you more money than your current welcome flow, you pay nothing. Nobody can honestly promise a specific number - platforms, inboxes and markets change - which is exactly why the trial exists: you see the result in your own account before you commit to anything.
Below that, the list usually isn't growing fast enough for a one-week split to read cleanly, and the return on a full retention system doesn't justify the retainer. We'd rather say so up front than waste your time - so the booking asks one quick question first.
We add a random split inside your existing welcome flow. Half of new subscribers get your current emails, half get ours - same seven days, same traffic, same offer. Klaviyo and Omnisend both report each path separately, so you read the comparison straight from your own flow analytics. Nothing is switched off and nobody stops receiving a welcome. Your existing agency or team keeps access and keeps working; we only add the split.
11 / BOOK YOUR FREE WELCOME-FLOW TRIAL
Book a 30-minute audit call with Luke. One quick question first - then pick a time that suits you.
★★★★★ Rated 5/5 by our clients - 55 public reviews, 100% five-star, none invited.
EMAIL RUN FOR · BULLDOG GEAR · CORVIVE · BIOPREVENTATIVE · INKED RUGS · 100+ BRANDS
- Luke & Tom
▪ QUICK CHECK BEFORE WE BOOK
≈ £75K+ · €90K+ A MONTH
Below $100K a month a one-week split can't read cleanly and a full retention system rarely pays for itself - so we'd rather tell you now than waste your time. Say yes and you'll pick a 30-minute slot with Luke on the next screen.
Your 30-min call is with Luke Ellis, Sunlo co-founder. Not an SDR.30-MIN CALL WITH A FOUNDER · NO CARD · NO DECK
★★★★★ Rated 5/5 · 55 client reviews
TRUSTED BY BULLDOG GEAR · CORVIVE · 100+ BRANDS
▪ YOU QUALIFY - PICK A 30-MIN SLOT WITH LUKE
Calendar not loading? Open Calendly in a new tab
▪ YOU'RE BOOKED
The invite is in your inbox. No prep needed - but it helps to know roughly how many new subscribers you get a month and what your welcome flow sends today. Nothing is built and no access is requested until after we've spoken.
▪ NOT QUITE YET
It's built for brands doing $100K+ a month, where three emails can move real money. Below that, a full retention system rarely pays for itself - and we'd rather tell you now than waste your time. When you cross $100K, come back; the offer will be here.
▪ QUICK CHECK BEFORE WE BOOK
≈ £75K+ · €90K+ A MONTH
Below $100K a month a one-week split can't read cleanly and a full retention system rarely pays for itself - so we'd rather tell you now than waste your time. Say yes and you'll pick a 30-minute slot with Luke on the next screen.
Your 30-min call is with Luke Ellis, Sunlo co-founder. Not an SDR.30-MIN CALL WITH A FOUNDER · NO CARD · NO DECK
★★★★★ Rated 5/5 · 55 client reviews
TRUSTED BY BULLDOG GEAR · CORVIVE · 100+ BRANDS
▪ YOU QUALIFY - PICK A 30-MIN SLOT WITH LUKE
Calendar not loading? Open Calendly in a new tab
▪ YOU'RE BOOKED
The invite is in your inbox. No prep needed - but it helps to know roughly how many new subscribers you get a month and what your welcome flow sends today. Nothing is built and no access is requested until after we've spoken.
▪ NOT QUITE YET
It's built for brands doing $100K+ a month, where three emails can move real money. Below that, a full retention system rarely pays for itself - and we'd rather tell you now than waste your time. When you cross $100K, come back; the offer will be here.
