Email Marketing Agency
Turn more first-time buyers into loyal, repeat customers with smarter email, SMS, and retention strategy. If you're an ecommerce brand, a local business, or scaling an all-in-one system, we develop retention channels that transform your customer list into predictable revenue.
Book your free audit to uncover the biggest opportunities in your customer journey.
Grow Your Email Marketing Revenue
Klaviyo is the gold standard for ecommerce email and SMS. At Stimulate, we use Klaviyo to create revenue-driving flows, campaigns, and segmentation powered by your store's purchase data so that every message is targeted and tied to sales.
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Turning Retention Into Your Growth Engine
96%
Average channel growth during first 90 Days
$100M+
Total attributable revenue driven as of 2025
2.3+yrs
Average client retention
What’s Inside Our Email Marketing Service
As a performance-first email & SMS agency, our team at Stimulate connects data, creative, and strategy to turn your list into a reliable growth channel on the platform that best fits your business.
List Growth & Deliverability
We optimize your opt-in forms, pop-ups, and deliverability so that your messages reach as many inboxes as possible.
Copywriting & Design
We create high-performing emails and texts that look great and convert. Our team handles the strategy, copy, and design.
Email & SMS Campaigns
We launch weekly email & SMS campaigns using smart segmentation, A/B testing, and performance data to keep your brand top-of-mind and converting.
Email & SMS Automations
We build advanced flows that meet customers exactly where they are—welcome series, winbacks, abandoned carts, review requests, and lead follow-up. Every automation is data-backed, segmented, and built to convert.
Most Clients See 96% Average Revenue Growth in 90 Days
Across the channels we manage, our clients see nearly double the revenue within their first three months. Here's a glimpse into some of our email marketing success stories.
View All Case StudiesNursing Queen
Nursing Queen partnered with Stimulate to scale its email and SMS program through stronger lifecycle automation, campaign strategy, and subscriber acquisition. Within the first 90 days, email and SMS grew from 30.3% to 59.5% of total store revenue. Six months in, retention revenue is up 65.1% YoY, generating more than $300K in additional attributed revenue.
59.5%
of Revenue from Email + SMS
+$300K
Revenue Added in 6-Months
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TEMPTU
TEMPTU partnered with Stimulate to strengthen its retention program and create more dependable revenue from its existing audience. Within the first 90 days, email revenue grew 47.4% YoY even as total store revenue declined 15.4%, while a new SMS program and rebuilt acquisition strategy created additional channels for future growth.
41%
of Revenue from Email + SMS
+47.4%
90-Day Lift in Email Revenue
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Zivolife
Zivolife partnered with Stimulate to transform their retention marketing strategy for their patented green microalgae superfood. By fixing foundational tracking issues and implementing data-driven list growth tactics, we turned email and SMS into their best-performing channels and delivered record-breaking revenue growth.
65%
Email & SMS revenue growth in first 2 months
213%
List growth increase in first 2 months
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Silver Mirror
Silver Mirror, a fast-growing facial bar, had managed retention marketing in-house for years but hit a ceiling. Too few visitors converted into email & text subscribers, their automations weren’t driving bookings, and promotion-heavy content eroded engagement and margins. They knew email and SMS held enormous potential—but needed a partner to unlock it.
273%
increase in email signups in 30 days
188%
boost in engagement in 30 days
Skinmedix
Skinmedix partnered with Stimulate to take their email marketing strategy to the next level. By accelerating list growth, crafting conversion-focused campaigns, and implementing key automations, we unlocked email’s full potential as a revenue driver. Within 90 days, email revenue grew from 12% to 45% of sales, and after one year, we achieved extraordinary retention results.
381%
YoY Growth in Email Revenue
47%
Increase in LTV
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Editor's Pick
Editor’s Pick partnered with Stimulate to upgrade their retention marketing strategy, focusing on enhancing profitability and customer lifetime value. By driving subscription growth, implementing retention-first strategies, and reducing dependency on discounts, we helped transform their approach to retention—and their results.
98%
increase in repeat revenue per customer
29%
of sales attributed to subscriptions within 12 months of launch
Speks
Before starting with Speks, they were stuck at driving just 8.57% from email. Despite having key core flows like the welcome series, browse abandonment, and abandoned checkout and sending consistent campaigns 5x per month, their strategy lacked the conversion elements needed to scale up.
205%
YoY increase in managed revenue
253%
YoY increase in click rates
Begin Health
Begin Health partnered with Stimulate to transform their retention marketing strategy. By infusing their playful branding into every email and SMS campaign, we created a unique and engaging customer experience. Coupled with advanced post-purchase automation, this approach turned email into their fastest-growing channel and delivered a record-breaking year of growth.
$21
Increase in 12-month LTV
42%
Growth in repurchase rates
StackedSkincare
StackedSkincare partnered with Stimulate to elevate their retention marketing strategy and transform email into a powerful revenue channel. By migrating platforms, focusing on list growth, and creating high-converting content, we turned email into their fastest-growing marketing channel.
#1
Fastest growing channel
218%
YoY increase in list growth
Groom Here
Groom Here partnered with Stimulate to amplify their already successful email marketing strategy. By optimizing popups, enhancing deliverability, and introducing value-based content, we turned email into their fastest-growing revenue channel, increasing email revenue by 256% in just 12 months.
256%
YoY growth in email revenue
83%
Increase in popup CVRs
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ezpz
ezpz partnered with Stimulate to transform their email marketing strategy by revamping automations, personalizing campaigns, and leveraging zero-party data to drive growth. The result? A major leap in revenue attributable to email and a substantial boost in engagement metrics, all within 90 days.
238%
Increase in click rates
476%
lift in popup conversion rates
What Our Clients Say
Our experience growing StackedSkincare's retention marketing program by 46% YoY
StackedSkincare
Skinmedix's experience scaling their email &
SMS retention program by 5x with Stimulate
SkinMedix
The Stimulate team is simply fantastic. We engaged Stimulate to help get our fledgling email game off the ground. The results have been and continue to be incredibly impressive. We’ve seen dramatic improvements across the board: during our first 6 months, subscription churn dropped by 42%, LTV rose by almost 20%, and our percent of revenue attributable to email increased by more than 200%. Stimulate takes a very data-driven and analytical approach and the results speak for themselves. Hire this team: Randy and Stimulate are the only ones you need.
David Brown
CEO + Co-Founder, FireRoad
I’ve been working with Stimulate for almost three years now, and they do an outstanding job with email & SMS marketing including campaigns and journeys. They really immerse themselves in the brands they work with. I highly recommend them!
Shimshy
Marketing Manager, Editors Pick
Working with Stimulate has made my life so easy. The team writes and designs on-brand emails, puts together the whole content calendar, manages reporting, and so much more, all with very little feedback needed. And as a result, Stimulate has not only freed up my time but we’ve seen our email & sms channels grow exponentially”
Kerry
Founder & Aesthetician, StackedSkincare
Stimulate has increased our email and SMS revenue by many multiples in under 12 months of working together. And they do everything - copy, design, strategy, deployment, reporting. It has been one of the best agency experiences I've had. I can not recommend more highly.
Craig
CEO & Founder, Speks
There are a million agencies and freelancers trying to sell you email marketing. It's refreshing to work with Stimulate because in a sea of 'experts', they actually are one. Within two months of working with Stimulate, we achieved the highest total revenue from flows in our brand's five-year history, and this was not an easy lift as email revenue was already high. I wish I found them three years ago. I highly recommend working with them.
Josh Walker
Co-Founder & CMO, 1620 Workwear
Stimulate’s commitment to and understanding of analytics is a welcome change from what we have experienced with other email marketers. The team has a fantastic understanding of campaign optimization and has the platform skills to execute effectively. For anyone looking for help with managing email communication I would highly recommend Stimulate!
Eric Steckling
Founder, Brio Product Group
What impressed me most about Stimulate is their ability to truly understand our brand and customer base. They didn’t just apply generic strategies; instead, they took the time to tailor their approach specifically to our needs, which made all the difference in our results. Their use of data-driven insights and predictive analytics to drive personalized campaigns was particularly unique and effective. In short, Stimulate brings a combination of creativity, technical expertise, and a true understanding of retention that sets them apart from others in the industry.
Christie
CMO, ezpz
Ready to Scale? Let's Make it Happen!
Get a custom blueprint for turning more one-time buyers into loyal customers, starting with a free retention audit.
Frequently Asked Questions
We recommend Klaviyo for ecommerce businesses. It plugs into your store and uses real customer behavior like purchases and browsing to drive revenue. If budget's tighter, Omnisend covers the essentials. The best email marketing company won't push the same tool on everyone; the right email service provider fits your business model and your wider digital strategy. Not sure? That's what our free audit is for.
No, and many clients don't. We’re not an email agency that migrates everyone by default; we audit what you have first. Whether you built your setup or a previous email marketing company did, we optimize it if it fits. If it's holding you back, we migrate you for free, with list templates and automations rebuilt to your brand guidelines. Your email campaigns keep running throughout, and you get a clear email marketing strategy before anything moves.
Our pricing is based on your selected monthly deliverables, including things like campaign management, automation builds, and creative. Pricing typically ranges from $3,500–$6,500 per month. As a full-service email marketing agency, we specialize in email and SMS rather than bundling in social media marketing. Every engagement is completely based on your goals, so your program stays focused on ROI and long-term growth.
We offer month-to-month agreements for maximum flexibility, or six-month contracts with perks like upfront flow setup. Unlike many other top email marketing agencies, we don't believe in locking you in; we'd rather earn the renewal by driving real business growth.
Yes. Your platform subscriptions are billed separately from our management fee. If you're on Klaviyo, you pay the platform directly and always own the account and your relationship with your email service provider. We'll walk you through the expected software costs during your audit so pricing fits neatly into your overall digital strategy without any surprises.
Our clients at Stimulate typically see initial improvements in their email marketing campaigns within the first 30 days and significant results within the first 90 days, which is reflected in the 96% average revenue growth we drive for new accounts in that window. Flows often compound from there, steadily deepening customer engagement and improving customer retention month over month. We know the best brands move quickly, so we developed our email marketing agency services to deliver results faster than you'd find elsewhere.
At Stimulate, you get a full review of your setup: deliverability, flow performance, and segmentation. We'll show you where revenue is being left on the table and where customer lifetime value can grow. Plus, with our free audit, you get quick wins, like cutting the inactive profiles inflating your monthly platform bill. Whether you’re coming from a general digital marketing agency or starting from scratch, you'll leave with a roadmap. Most email marketing firms charge for this, but ours is free with no obligation.
Email marketing is important because it gives you direct access to your audience. Algorithms change, and ad costs climb, but your list is yours. Email and SMS marketing reach people who've already bought or shown intent, so it’s the cheapest way to drive repeat purchases, and usually the highest-returning channel in ecommerce.