Add 25% to 40% more revenue from your existing customer base without spending an extra dollar on paid ads.
Email systems that compound.
Revenue that compounds too.

It’s so difficult right now with CAC blowing up as you scale. Soon you reach to a point where you just breakeven on the first sale.

Due to this very problem, most businesses start struggling from Year 3 and almost half of them shut by Year 5.
Drag the sliders below to estimate how much incremental profit your backend email & SMS system should be generating each month.

1. It’s Very Expensive —Acquiring a new customer costs 5X more than keeping one you already have.
2. Customer Loyalty Fills Your Bank —Harvard Business Review research says increasing customer retention by just 5% increases profit between 25% and 95%.
3. You Own Your List —You don’t own your ads (Meta does), CPC spikes, CPM surge, ROAS decline. It all depends on Zuck’s mood.
We are Nexeraz! An email marketing & retention engineering team with 5+ years working with DTC brands across the globe.
We've seen this same pattern in almost every brand we've worked with. Strong product, real customers, growing ad spend and an email list that's barely touched.
We deliver 25 - 40% growth through expert Email & SMS strategies built to scale your profitability from the backend.


Client brand identities are strictly protected under Non-Disclosure Agreements (NDAs). Below are unedited 30-day performance summaries pulled directly from active Klaviyo dashboards.
Rebuilt the entire email & SMS retention engine for a high-volume fashion brand. Overhauled core welcome sequences, VIP VIP nurtures, and abandoned checkout flows.
![[NDA Protected] 7-Figure D2C Apparel Brand Klaviyo 30-day proof](/case-studies/klaviyo-proof-1.png)
Most agencies bill you for effort and send vanity PDF reports. We bill ourselves for profit and protect your margins first.
The 'Hope & Pray' strategy. They spam everyone until your domain deliverability burns to the ground.
Right message, right customer, right time. We protect your domain reputation and inbox placement.
They destroy your profit margins just to show a quick revenue spike on a quarterly slide deck.
We know a 10% discount needs 33% more volume just to break even — we grow revenue without touching your margins.
They build basic flows in Week 1, claim victory, and never touch them again for the rest of the year.
We split-test headlines, offer triggers, and timing every month — your retention revenue compounds indefinitely.
They send 40-page PDF reports bragging about 45% Apple iOS privacy fake open rates.
We track actual net profit generated, repurchase rate, and Klaviyo-attributed cash flow.
Your 5-time VIP customer and a cold lead who hasn't opened an email since 2022 get the exact same blast.
Surgical customer lifecycle messaging that speaks to cold leads, first-time buyers, and VIPs completely differently.
They don't understand paid ads or unit economics. When store sales drop, they just blame Zuck.
We analyze your entire funnel — Facebook/TikTok ad spend, CAC, LTV, churn, and repeat purchase frequency.
You get locked into rigid annual retainers with 60-day cancellation penalties even if they fail.
If we don't deliver, you don't stay. Simple as that. We earn your business every single 30 days.
You pay their full monthly fee whether your ecommerce revenue explodes or drops off a cliff.
If you don’t see ROI results in 60 days, we work 100% free until you do. We put skin in the game.
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We could talk ourselves up all day, but it's what our e-commerce partners say that actually counts.
"They've been killing it for me! The first 2 months they've increased my sales for email & SMS by over 425%."
"They've done a fantastic job. They were able to double our email revenue within the first month and eventually quadrupled that."
"In the first month, we experienced over a 600% email revenue increase and much higher engagement rates."
"Nexeraz completely rebuilt our Klaviyo flows from scratch. Our flow revenue jumped from 14% to 39% of total store sales within 45 days."
"Our domain deliverability was completely broken. Nexeraz repaired our DKIM/DMARC authentication and restored inbox placement instantly."
"The retention strategy and automated SMS sequences they executed for our product drops exceeded every revenue target we set for Q4."
"Hands down the best retention team we've ever hired. Responsive, data-driven, and relentlessly focused on customer lifetime value."
"Their automated win-back and post-purchase sequences turned one-time buyers into loyal repeat subscribers. Conversion skyrocketed."
"They've been killing it for me! The first 2 months they've increased my sales for email & SMS by over 425%."
"They've done a fantastic job. They were able to double our email revenue within the first month and eventually quadrupled that."
"In the first month, we experienced over a 600% email revenue increase and much higher engagement rates."
"Nexeraz completely rebuilt our Klaviyo flows from scratch. Our flow revenue jumped from 14% to 39% of total store sales within 45 days."
"Our domain deliverability was completely broken. Nexeraz repaired our DKIM/DMARC authentication and restored inbox placement instantly."
"The retention strategy and automated SMS sequences they executed for our product drops exceeded every revenue target we set for Q4."
"Hands down the best retention team we've ever hired. Responsive, data-driven, and relentlessly focused on customer lifetime value."
"Their automated win-back and post-purchase sequences turned one-time buyers into loyal repeat subscribers. Conversion skyrocketed."
Brands scaling from $100K → $1M/month do ONE thing differently:
They maximize revenue from the customers they already have. Not by spending more on ads... But by fixing the backend system that turns one-time buyers into high-LTV repeat customers.

Unlock backend cash flow from customers you already paid to acquire without spending an extra dollar on ads.
Implement smart post-purchase cross-sells, automated replenishment triggers, and VIP loyalty tiers.
Turn unpredictable monthly sales drops into automated, high-margin revenue that hits your bank every single month.
From deep brand research and rapid execution to continuous monthly optimization and LTV scaling.
Before we touch Klaviyo, we learn your brand inside out.
Strategy becomes execution. In under 2 weeks.
This is where most agencies stop. For us, this is where it compounds.
Turning one-time buyers into long-term loyal brand advocates.
Before we touch Klaviyo, we learn your brand inside out.
Strategy becomes execution. In under 2 weeks.
This is where most agencies stop. For us, this is where it compounds.
Turning one-time buyers into long-term loyal brand advocates.
Everything you need to know about partnering with Nexeraz, scaling retention revenue, and protecting your profit margins.
Customer acquisition costs (CAC) on Meta and Google continue to rise. Retention engineering converts your existing traffic and past buyers into compounding, high-margin revenue — adding 25% to 40% more store revenue without spending an extra dollar on ads.
Ready to turn your email & SMS channels into a compounding revenue engine? Let's discuss your brand's retention growth strategy.
We collaborate with forward-thinking teams to design and build systems for clarity and scale.

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