Included in
Growth Partnership
Turn more clicks into customers with full-funnel Email + SMS that drives first purchase and accelerates LTV.
Drive profit on autopilot
If email isn’t driving at least 30% of your revenue, you’re leaving money on the table.
Our team builds hyper-targeted, conversion-focused automations and campaigns designed to turn browsers into buyers.
WE’LL HANDLE IT FOR YOU
Email & SMS
Under One Roof
Email Automation & Campaigns
SMS Automation & Campaigns
Trusted by 300+ brands
28 day average ROI on our Klaviyo email services
Our Klaviyo specialists design and optimise full-funnel Email + SMS systems that drive measurable profit fast. From strategy to creative and automation, every flow is built to convert clicks into customers and our clients see an ROI on our retainer in the first 28 days on average.
Send Emails that
Make Money
Email Strategy & Optimisation
Tailored roadmaps and segmentation frameworks to get the right message to the right inbox, every time.
Event‑Driven Automation Flows
Triggered sequences based on user behaviour: Welcome series, cart abandonment, re‑engagement and more.
Promotions & Newsletters
High‑impact campaigns with stunning visuals and copy that turns readers into buyers.
A / B Testing & Optimization
Data‑driven experiments on subject lines, content and send times so you never leave money on the table.
Reporting & Analytics
Comprehensive dashboards and deep dives that track opens, clicks, conversions and ROI.
Get started with
Email & SMS
Get the Email/SMS
team that turns customers into repeat revenue.
Email & SMS Results
Highlight Case Study
“We’ve had multiple record months. Their creative is just incredible.”
312%
Revenue Growth (Year on Year)
257%
Decrease In CPA in the first 90 days
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"You guys are amazing. I would highly recommend anyone to work with you guys."
71%
increase in new customers YoY
775%
increase in email revenue YoY
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PayLater Travel partnered with us to rebuild their entire growth strategy, driving a 629% Increase in Purchases and 800% Revenue growth in 18 months
629%
Increase in Purchases
800%
Revenue growth in 18 month
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We rebuilt Earjobs' Email & SMS strategy, driving a 114% increase in email sales in 60 days with 62% of total email results driven by Essential flows
114%
increase in email sales in 60 days
62%
of total email sales from Essential flows
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Geedup partnered with us to rebuild their entire growth strategy, driving $1.6M in 45mins
$1.6M
in 45 mins of collection launch
64%
increase in revenue MoM
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Love To Dream partnered with us to rebuild their entire growth strategy, driving a 125% increase in revenue generated and a 6+ avg. MER against an original goal of 4.69
125%
increase in revenue generated
6+ avg.
MER against an original goal of 4.69
explore case study
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Why Choose
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CASE STUDies
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Success Story
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Frequently Asked Questions
What’s Defiant’s approach to email and SMS?
We build revenue systems, not newsletters. Every flow and campaign is designed to lift LTV, AOV, and repeat purchase rate. We integrate directly with your acquisition data so retention supports paid growth.
What platforms do you use?
We primarily use Klaviyo for DTC email and Attentive or Klaviyo SMS for messaging. For service based brands, Hubspot is our CRM of choice. Integrations run through Shopify, Triple Whale, and GA4 to unify tracking and attribution across channels.
How do you structure email flows for scale?
We design modular flow architectures covering Welcome, Abandonment, Post-Purchase, Winback, and Replenishment & more — each one built with dynamic logic that personalises messaging by product, behavior, and purchase history.
How do you measure success?
We track revenue contribution, deliverability, list growth, and LTV lift. Our dashboards show retention ROI in context of total marketing spend, not in isolation from paid channels.
What’s included in a Defiant email engagement?
Each build includes strategy, copywriting, design, segmentation, automation setup, and testing. You also get reusable Klaviyo/Hubspot blocks for new products, promos, and seasonal campaigns to speed up execution.
How does SMS fit into the strategy?
SMS is used for high-intent, time-sensitive, and retention-driven communication. We automate transactional sequences, restock alerts, and VIP offers without over-messaging or list fatigue.
How much does it cost to work with Defiant on retention?
Our Email + SMS retainers start from $6K/month, or they can be integrated into full-service growth retainers at a reduced fee. Full lifecycle buildouts typically range from $12K–$25K depending on list size and complexity.
How do you handle design and creative?
Our in-house creative team builds brand-consistent visuals optimized for clarity and mobile engagement. We use modular layouts to maintain design consistency while enabling quick A/B testing of offers and CTAs.
How do you keep email performance strong over time?
We run monthly optimisation sprints reviewing deliverability, content fatigue, and segment health. Tests cover subject lines, cadence, incentive structure, and layout refreshes all backed by retention data.
Why is Defiant’s retention system different from most agencies?
Most agencies send campaigns. We integrate retention into your growth stack feeding data back into Meta and Google, improving targeting accuracy, and turning customers into profit centers that compound over time.
YOU MADE IT THIS FAR
Ready to Scale?
Whether you’re scaling to $1M/month or heading towards a $100M+ valuation.
Defiant becomes your unfair advantage in creative, media, and performance.
Email & SMS
that drives profit.
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