Retention Marketing That Makes Ecommerce Growth Compound

Flowium is a retention marketing agency that helps ecommerce brands grow more profitably through email, SMS, and lifecycle marketing. We build retention systems that increase customer lifetime value and repeat purchases.

Get Your Lifecycle Diagnosis
4.9

4.7

2025
Inc. 5000
 Honoree
Retention revenue compounds while acquisition cost stays flat. Retention revenue compounds while acquisition cost stays flat.
$1B+ Revenue
 driven
1000+ Brands 
since 2017

4.9
Clutch

4.7
Google

2025
Inc. 5000
 Honoree
Balsam Hill Andrea Iyanah RSVLTS Ben Bridge Last Crumb Sky Zone Maison Kitsune True Classic BetterBrand Swoon Not Your Mother's Dr Squatch
Balsam Hill Andrea Iyanah RSVLTS Ben Bridge Last Crumb Sky Zone Maison Kitsune True Classic BetterBrand Swoon Not Your Mother's Dr Squatch

You Paid to Acquire Your Customers.
Now Make Them Worth It

Where Retention Marketing Creates Profit:

Higher repeat purchase rate

The average DTC brand's repeat purchase rate is under 28%. The best brands hit 40%+.

Revenue that compounds

A 5% improvement in retention can increase profits by 25–95%. Not because you spent more, because the customers you already have became worth more.

Off the acquisition treadmill

Every customer who doesn't come back needs to be replaced with a new one. Retention fixes the leak, so your acquisition spend builds on itself instead of just keeping up.

Get a Lifecycle Diagnosis

Lifecycle Marketing Built Around the Customer Journey

From the moment a customer is acquired, we ensure that every interaction works toward the next stage of the relationship, so the whole journey feels like one conversation that flows.

Acquired by the brand

Welcome A strong first impression

First Purchase Convert interest
into revenue

Post-Purchase Turn one purchase
into a pattern

Repeat Make buying again
feel natural

Loyalty Turn buyers into advocates

Win-Back Re-engage before they're gone

Six team members wearing Flowium T-shirts standing together on a rooftop, smiling and placing their hands together. Six team members wearing Flowium T-shirts standing together on a rooftop, smiling and placing their hands together.

Retention Marketing Services Across Every Customer Channel

Not every brand needs every channel. We build the right stack for your audience and coordinate it so every message feels like part of the same story.

Get a Lifecycle Diagnosis

Our Lifecycle Marketing Services Framework for Growth

Our five-phase system for building retention infrastructure that compounds. Each phase feeds the next.

1. Diagnose

Find revenue leaks, flow and segmentation gaps.



What you get:

A prioritized list of your biggest opportunities and the highest-leverage move to make.

2. Map

Design the full lifecycle strategy and journey.



What you get:

A roadmap tied to revenue goals, before a single send.

3. Build

Deploy flows, campaigns, segments and channels.



What you get:

A live retention ecosystem generating revenue.

4. Optimize

A/B testing, benchmarking and segment refinement.


What you get:

Steady, measurable lifts you can see in the P&L.

5. Scale

Add channels, loyalty and LTV-based expansion.



What you get:

A program that grows more valuable every quarter.

The Diagnosis Is on Us

A free, no-commitment look at your lifecycle program that shows you where revenue is leaking and what to fix first.

Get Your Diagnosis Two smiling Flowium team members wearing branded T-shirts, standing side by side.

Why Flowium

Most Agencies Work Like Vendors. We Work Like a Strategic Partner

Same scope of work, two very different approaches. We treat retention as a growth system, not a line-item deliverable.

Get Your Diagnosis
average
agency
Flowium

agency
Transparent Pricing
Clear Scope of Work
2 Years Price Lock Guarantee
No Long-Term Contracts
Lifecycle Marketing Experts
Media, Cyber & Liability Coverage
Get Your Diagnosis

What Our Clients Are Saying

Explore feedback from eCommerce brands who have experienced the value of our services.

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Michael Wittenstein profile picture
Michael Wittenstein
2026-01-22
Google star 1Google star 2Google star 3Google star 4Google star 5
Floiwum was very professional and was an excellent solution for our communication needs. Deliverability has been consistently strong, and we’ve seen noticeable improvements in open rates and engagement.Customer support has been responsive and knowledgeable, addressing questions quickly and providing clear guidance when needed .Flowium seems is a dependable choice for anyone looking to streamline and strengthen their email communications.
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Matthew Justice profile picture
Matthew Justice
2025-09-24
Google star 1Google star 2Google star 3Google star 4Google star 5
Highly recommended company, I have worked with them for the last 6 months and they are amazing at delivering top notch service. If you need help with Email or SMS campaigns I recommend 100%.
Posted on Google Google
BE FORWARD Japan profile picture
BE FORWARD Japan
2025-08-28
Google star 1Google star 2Google star 3Google star 4Google star 5
Our experience with Flowium was outstanding. From the beginning, the sales agent, strategist, and project manager were professional, friendly, and incredibly accommodating to our needs. They took the time to really understand our goals and patiently explained their recommendations in a way that was easy to act on. They provided a comprehensive audit that went beyond surface-level feedback and delivered deep insights into automation, segmentation, campaigns, industry standards, etc. Their in-depth knowledge turned our email audit project into a success. Since implementing some of their recommendations, we’ve already seen notable improvements in our click-through rates. If you're looking for strategic email guidance that delivers real results, this is the team to hire.
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Manisha Khanna profile picture
Manisha Khanna
2024-10-24
Google star 1Google star 2Google star 3Google star 4Google star 5
Great service and attention to details the team at Flowium provide! Can't say enough good things about them! It just felt like they actually were excited and happy to help us level up and bring a new perspective. Overall all, would 100% recommend!
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Alana Steyn profile picture
Alana Steyn
2024-09-14
Google star 1Google star 2Google star 3Google star 4Google star 5
I signed up for a free audit with Flowium and wow! I was so impressed!! Jeffrey was extremely knowledgeable, friendly and helpful and went above and beyond of what I was expecting in terms of providing useful information. Thank you so much! Highly recommend!
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Drew Sanders profile picture
Drew Sanders
2024-09-09
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium provides expert services. They gave me a free audit for my email marketing and it was thorough. I appreciate their support and I look forward to work with them soon.
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Tia Clarida profile picture
Tia Clarida
2024-09-04
Google star 1Google star 2Google star 3Google star 4Google star 5
Hands down, one of the most comprehensive email audits and recommendations I have ever seen. They know what they are talking about and I can't wait to work with them!!
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Adam Zlatkus profile picture
Adam Zlatkus
2024-08-27
Google star 1Google star 2Google star 3Google star 4Google star 5
I've had the pleasure of working with Flowium for the last couple of years and and the experience has been amazing. Their strategic insights and innovative approaches have made a significant impact on many of their clients. They know Klaviyo inside and out and produce email and SMS results consistently.
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Iryna Hrynchyshyn profile picture
Iryna Hrynchyshyn
2024-07-13
Google star 1Google star 2Google star 3Google star 4Google star 5
Jeff did a email marketing audit for me for free. He provided tons of of value how to improve my email marketing. All tips were very actionable. My team was try to implement all Klaviyo improvements but iit took longer than we expected. One month later we hired Flowium team. They are indeed email and klaviyo experts. Highly recommend them.
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Romina Vardanyan profile picture
Romina Vardanyan
2024-05-09
Google star 1Google star 2Google star 3Google star 4Google star 5
Amazing to work with!!
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Loretta Green profile picture
Loretta Green
2024-03-08
Google star 1Google star 2Google star 3Google star 4Google star 5
Great team to work with on email marketing. They're very helpful and patience, provided lots of examples to guide you through the process. Overall experience very happy with the outcome.
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Alex Casey profile picture
Alex Casey
2023-12-11
Google star 1Google star 2Google star 3Google star 4Google star 5
Great agency, incredibly gifted and creative and always excited to work - so glad to have them as an extension of our team!
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Dmytro Kavun profile picture
Dmytro Kavun
2023-12-07
Google star 1Google star 2Google star 3Google star 4Google star 5
I highly recommend Flowium. Their strategic approach to email campaigns significantly boosted our engagement rates. The team's creativity, attention to detail, and commitment to results have made them an invaluable partner for our non-profit organization. With their expertise, we've witnessed a notable increase in click-through rates and our donor base interaction. If you're seeking a top-notch email marketing solution, go with Flowium.
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Jared Surnamer profile picture
Jared Surnamer
2023-11-28
Google star 1Google star 2Google star 3Google star 4Google star 5
I operate a small real estate company and wasn't sure if Flowium could or would work for my business since I did not have a big online presence and am mostly "brick and mortar." When I reached out and began discussions with Flowium, I was blown away by the comprehensiveness of their recommendations; not only did it include a variety of suggestions outside of email marketing, but they provided me with guidance on how I could go about executing that plan, with or without Flowium. But based on the quality of their guidance, their evident expertise, and their level of service/personalization, I opted to work directly with Flowium. I am in that process now and couldn't be happier. While I went to them for marketing consultation, I am learning a lot about business just by watching them work! I happily and surely recommend working with this company. The more I learn about the organization, the more I love it.
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Anya Sobolevska profile picture
Anya Sobolevska
2023-11-27
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium has been outstanding at helping our nonprofit Dignitas with the email marketing. From the campaign strategizing, to content creativity and automation - all done with ease, high speed and producing great results, boosting the daily donations and increasing public awareness of the cause. Strongly recommend!
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Samuel Waters profile picture
Samuel Waters
2023-11-02
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium has provided email marketing services for us. They've done a fantastic job and understand our e-commerce business as well as email marketing including advanced segmentation and flow building.
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Laura Sauls profile picture
Laura Sauls
2023-09-28
Google star 1Google star 2Google star 3Google star 4Google star 5
I've worked with the Flowium team a number of times and their teams are incredible. They take the time to actually learn your business and constantly add strategic and creative value. This is so helpful, especially if you have a small team and wearing many hats.
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Ash Mousavian profile picture
Ash Mousavian
2023-08-29
Google star 1Google star 2Google star 3Google star 4Google star 5
I genuinely enjoyed working with the Flowium team. They are very knowledgeable and incredibly resourceful.
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Charlene Mulholland profile picture
Charlene Mulholland
2023-08-28
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium has been amazing to work with! They are a fabulous partner of ours - they have their processes down to a T, do great work and are fun people to work with. They really know the eCommerce space and work with the best companies in the industry. You can't go wrong working with them!
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Ben Walter profile picture
Ben Walter
2023-08-25
Google star 1Google star 2Google star 3Google star 4Google star 5
Awesome team to work with and a great partner of PostPilot's! Special shoutout to Lexie who always brings fresh ideas to the table.
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Chelsea Johns profile picture
Chelsea Johns
2023-08-03
Google star 1Google star 2Google star 3Google star 4Google star 5
I started working with founder Andriy nearly 5 years ago at a previous company and since then he has built a Email Marketing powerhouse. The team that works on our account are absolute rockstars and email marketing has never been so seamless for us, plus they have visually elevated our brand and made our copy more fun. HIGHLY RECOMMEND!!
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Email Marketer profile picture
Email Marketer
2023-07-27
Google star 1Google star 2Google star 3Google star 4Google star 5
I can't speak highly enough about Flowium and their phenomenal email marketing services. From the moment we partnered with them, their team demonstrated a level of professionalism and dedication that is truly unmatched. Flowium took the time to understand our brand, industry, and unique requirements, resulting in highly targeted and effective email campaigns and flows. Their creativity and attention to detail ensured that every email was not only visually captivating but strategically optimized for maximum impact. The results were outstanding! Highly recommended!
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Dmytro Malymonenko profile picture
Dmytro Malymonenko
2023-07-18
Google star 1Google star 2Google star 3Google star 4Google star 5
I am very greatful for email marketing consultation provided to me by Andriy. Very smart, enthusiastic and insightful time during our meetings. Flowium have a unique marketing strategy of email list building and keep your customers aware about your story, services and brand. Highly Recomended!
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Jane Merten profile picture
Jane Merten
2023-06-28
Google star 1Google star 2Google star 3Google star 4Google star 5
Very organized team and great communication related to next steps and deadlines. Flowium just gets it!
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Kira Karmazin profile picture
Kira Karmazin
2023-06-26
Google star 1Google star 2Google star 3Google star 4Google star 5
Easy to work with. We've work with Flowium on and off for a few years. They transitioned our brand from MailChimp to Klaviyo and then a few years later helped us optimize our flows. They are always fair, professional, and on time.
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Sophie Lissenburg profile picture
Sophie Lissenburg
2023-06-19
Google star 1Google star 2Google star 3Google star 4Google star 5
Really brilliant service from start to finish - fair, clear and detailed.
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Jess Marra profile picture
Jess Marra
2023-06-01
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium successfully migrated us from Listrak onto Klaviyo in a seamless 8-week process. Andrea oversaw our account and I cannot speak more highly of her strategy, project management, and account manager skills. THANK YOU!
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Kristin Taylor profile picture
Kristin Taylor
2023-04-25
Google star 1Google star 2Google star 3Google star 4Google star 5
OMG! THIS audit was a huge game changer for us. There was just so much I didn't even know to look for. Amara Ricord did our audit and we honestly can't wait to work with her even more!
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Lenny Postiglione profile picture
Lenny Postiglione
2023-04-10
Google star 1Google star 2Google star 3Google star 4Google star 5
I've enjoyed our collaboration with Flowium! Sydney and the team are very friendly, fully responsive and extremely organized. They've been a pleasure to work with and I would highly recommend their services.
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Jaxe and Grace Marketing profile picture
Jaxe and Grace Marketing
2023-03-16
Google star 1Google star 2Google star 3Google star 4Google star 5
Had great customer support and were very helpful!:)
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Alex Varfolomiyev profile picture
Alex Varfolomiyev
2023-03-15
positiverecommends
Team of professionals doing good things and helping people.
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Jonathan Cohen profile picture
Jonathan Cohen
2023-02-16
Google star 1Google star 2Google star 3Google star 4Google star 5
My experience so far has been incredible, the quality of the audit exceeded all of my expectation and the team over at Flowium is obviously extremely experienced and knowledgeable. 10/10!
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Dillon Dickerson profile picture
Dillon Dickerson
2023-02-14
Google star 1Google star 2Google star 3Google star 4Google star 5
My company worked with Flowium to migrate from Mailchimp to Klaviyo. The migration only lasted 2 weeks and Flowium handled everything flawlessly. As part of the migration they setup flows for our Welcome Series, Abandoned Cart, and Browse Abandonment. Every flow was detailed and used best practices so all my team had to do was go in and create the specified emails. Being a small business is difficult with so many tasks needing to be done everyday. Flowium was able to help take a load off of us so we could focus on other parts of our business. We look forward to working with them in the future.
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N Snow profile picture
N Snow
2023-02-01
Google star 1Google star 2Google star 3Google star 4Google star 5
Andriy and his team know exactly what to do and how to help small businesses in many industries. He is exceptionally organized and knows how to get right to the heart of solving problems and providing scalable solutions.
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Yonatan Cohen profile picture
Yonatan Cohen
2023-01-31
Google star 1Google star 2Google star 3Google star 4Google star 5
Very experienced and knlowedgabwle team, the audit they made was second to none, service is amaziong and it's clear they mastered email marketing. 5-STARS!
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Olivia Sepel profile picture
Olivia Sepel
2022-12-02
Google star 1Google star 2Google star 3Google star 4Google star 5
incredible team, highly skilled! Grateful to come across them!
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Allie Guertin profile picture
Allie Guertin
2022-10-24
Google star 1Google star 2Google star 3Google star 4Google star 5
Top notch Klaviyo Agency partner. The growth they bring to their clients is almost hard to believe - but after getting to know this team, it makes a whole lot of sense. They are true experts in the Email and SMS space. Couldn't recommend them enough!
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Emily Lin profile picture
Emily Lin
2022-09-28
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium team is an awesome email marketing agency that our team has been working with. They are very organized and professional by using the Mirro board. Amanda is very easy and efficient to communicate and work with. Overall they have made our workflow a lot more seamless, it's a great experience. We would highly recommend it.
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Frank Guernsey profile picture
Frank Guernsey
2022-09-26
Google star 1Google star 2Google star 3Google star 4Google star 5
Flowium has become our go-to email agency. The team is A+ and delivers results time after time. If you are using Klaviyo, talk to Flowium!
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Barton Watch Bands profile picture
Barton Watch Bands
2022-09-20
Google star 1Google star 2Google star 3Google star 4Google star 5
I've been working with Flowium for over a year now. Flowium really understands the intricacies of e-commerce email marketing and I'm proud to call them our partner. I'm very happy with their email design, development, and implementation because they get results!
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Svitlana Malinnikova profile picture
Svitlana Malinnikova
2022-09-20
Google star 1Google star 2Google star 3Google star 4Google star 5
Great company, excellent customer service and have the knowledge and tools to increase your revenue! I would definitely recommend to hire this company. They exceeded my expectations!
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Cambria Guernsey profile picture
Cambria Guernsey
2022-08-31
Google star 1Google star 2Google star 3Google star 4Google star 5
We've been working with Flowium for over a year and can't imagine engaging with any other email marketing agency. They are professional, personable and take pride in everything they deliver. The Flowium team comes prepared day one and the best part, they deliver on the results. Anyone who works with Flowium would be in good hands!
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Shishir D. profile picture
Shishir D.
2022-08-03
G2Crowd star 1G2Crowd star 2G2Crowd star 3G2Crowd star 4G2Crowd star 5Verified
V A professional experience through and through. The provider was prompt in answering all queries and addressing many of our concerns. We needed to understand in detail especially regarding privacy concerns Nothing to dislike as such. We sought out Flowium to meet our end objective. We had no major issues with the Flowium team Assess all alternatives. Flowium is in a niche space and has very few competitors. e
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Ethan Grush profile picture
Ethan Grush
2022-06-17
Google star 1Google star 2Google star 3Google star 4Google star 5
I purchased the Klaviyo mastery course back in early 2021 and it made the company I work for almost $90,000 in 1 year. I then stumbled upon your customer lifecycle course and I was like I can't even imagine the returns this course is going to have for me. Overall it is has been a great experience and I owe it all to Andriy and his team
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Dee Bailey profile picture
Dee Bailey
2022-02-09
Google star 1Google star 2Google star 3Google star 4Google star 5
Andriy and his team our outstanding. We needed support migrating from Bronto to Klayvio, and Flowium made the transition seamless. He also offers a variety e-learning tools + courses with are incredible valuable and helpful. 10/10 recommend.
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Amara Ricord profile picture
Amara Ricord
2021-06-23
positiverecommends
Flowium is extremely adept in the field of email marketing, with amazing strategies and delivery. They openly share concepts and strategies about the industry on their YouTube channel, as well as their podcast called Email Einstein. Definitely a great company to work with for your email marketing needs.
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Ellen Lewis profile picture
Ellen Lewis
2021-01-30
Google star 1Google star 2Google star 3Google star 4Google star 5
I had a really excellent call with the owner of this company. He answered all my questions and gave me some important guidance on next steps.
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Ellen Watson Lewis profile picture
Ellen Watson Lewis
2021-01-30
positiverecommends
I love Flowium - so helpful and supportive. They have a great podcast and really informative videos on YouTube. Their content is so good, Klaviyo uses it in their own special help sections
Posted on Google Google
Ali George profile picture
Ali George
2019-12-17
Google star 1Google star 2Google star 3Google star 4Google star 5
Andriy was so helpful with Klaviyo questions! He was extremely fast and knowledgable and was able to break it down into chunks with easy videos and pictures. I love that he wanted to teach me how to do it so I understood. He want above and beyond to be helpful and I would recommend to work with him.
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Rachel Brown profile picture
Rachel Brown
2019-06-11
Google star 1Google star 2Google star 3Google star 4Google star 5
Andriy and his team are awesome. They created an email campaign for me and my online sales increased by 40% in a matter of a few months. Crazy. He is professional, organized, and sent me thorough demo videos walking me through the process so I could have my assistant do updates. Would highly recommend him.

Trustindex rating score: Excellent

Excellent
4.7 of 5
63 reviews

See Where Your Revenue Is Leaking. Then Watch It Compound

Flowium Team Members

A free lifecycle diagnosis and a 30-minute call. Walk away with a clear read on your lifecycle program and where the next dollar of profit is hiding.


4.9 Clutch

4.7 Google

2025 Inc. 5000
 Honoree

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4.9 Clutch

4.7 Google

2025 Inc. 5000
 Honoree
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