★ section · 04 — case studies

The receipts.
Real shops.

Five recent retainers, by the numbers. Each case includes the problem at kickoff, the moves we made, and the email-attributed revenue twelve months in. All numbers reconcile to client Shopify exports.

★ case 01 · outdoor apparel Outdoor apparel
email rev+228%
open rate62.4%
flows live38
★ retainer · tier · louder · since q1 2024

Halftide Outdoor.

★ at kickoff

$4.2M ARR. Three flows live (welcome, abandoned cart, post-purchase). Email contributed 9% of revenue. Founders hadn't sent a campaign in eleven months — "no time."

★ what we shipped

Full 46-flow library deployed in six weeks. Source-segmented welcome series moved from one variant to four (paid social, organic, referral, retail). Three campaigns weekly with founder-voice copy.

Maren
Maren Petrov
Founder · Halftide Outdoor
★ case 02 · home goods Home goods
email rev+184%
repeat rate27%
flows live46
★ retainer · tier · loudest · since q3 2023

Modern Stable.

★ at kickoff

$11.8M ARR. Furniture brand with strong first-purchase economics but no second-purchase model. Repeat rate stuck at 8% for fourteen months.

★ what we shipped

SKU-cross-sell propensity model translated into post-purchase flows on an 18-month cadence. Built a "second-room" series for customers who'd bought living-room only. Repeat rate hit 27% by month nine.

Adesh
Adesh Park
Head of Marketing · Modern Stable
★ case 03 · skincare Skincare
email rev+312%
list growth4.1x
flows live32
★ retainer · tier · louder · since q2 2024

Borough & Fern.

★ at kickoff

$2.1M ARR. Strong Instagram following but list at 11k subs and barely growing. Email contributed 6% of revenue. No SMS.

★ what we shipped

Pop-up + on-site capture rebuild. Two-step opt-in with quiz. Welcome series moved from 1 to 5 emails. List grew 4.1x in nine months. Email + SMS now 31% of revenue.

Iris
Iris Komen
Founder · Borough & Fern
★ case 04 · pet Pet
email rev+196%
churn drop−14pts
flows live41
★ retainer · tier · loudest · since q4 2023

Salt Atelier.

★ at kickoff

$7.4M ARR subscription pet brand. Strong subscribe but punishing churn — 38% by month four. CFO had stopped trusting the LTV slide in board decks.

★ what we shipped

Built churn-stage model; identified day-67 cancellation cliff tied to a packaging issue. Lifecycle save-flow + SMS deflection recovered 14 percentage points of churn. Honest LTV slide back in board deck.

Marc
Marc Velez
CFO · Salt Atelier
★ case 05 · supplements Supplements
email rev+412%
sms rev$2.1M
flows live46
★ retainer · tier · loudest · since q3 2022

North Mark Wellness.

★ at kickoff

$18.6M ARR supplements brand. Email at 11% of revenue. Zero SMS strategy. Subscription program had three flows total, none of them recovering at-risk subscribers.

★ what we shipped

Full 46-flow build plus 14 custom subscription-saver flows. Klaviyo + Attentive cross-channel orchestration. Email + SMS now 38% of revenue and brand pushed to $84M ARR by month 22.

Niamh
Niamh Carras
Founder · North Mark Wellness
★ aggregate · 48 retainers

All 48 clients.
2025 close.

Across the active book in calendar year 2025. Numbers audited from client Shopify exports.

★ email rev $94M

Attributed email revenue across the client book.

★ avg open 58%

Median open rate on welcome series.

★ flows live 312

Klaviyo flows currently shipped across all clients.

★ retention 72%

Of clients renew past month 12 (industry: 24%).

★ next step

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