Welcome to Bossar
Welcome to Bossar
Welcome to Bossar
Welcome to Bossar
We believe true growth happens through collaboration. That’s why we don’t act like an outside agency. We integrate into your team, sharing the same goals and driving toward the same outcomes. Our 90% client retention rate isn’t a statistic. It’s proof that when trust, strategy, and execution align, lasting success follows.
We believe true growth happens through collaboration. That’s why we don’t act like an outside agency. We integrate into your team, sharing the same goals and driving toward the same outcomes. Our 90% client retention rate isn’t a statistic. It’s proof that when trust, strategy, and execution align, lasting success follows.
We believe true growth happens through collaboration. That’s why we don’t act like an outside agency. We integrate into your team, sharing the same goals and driving toward the same outcomes. Our 90% client retention rate isn’t a statistic. It’s proof that when trust, strategy, and execution align, lasting success follows.
$75M+ revenue driven for clients
$75M+ revenue driven for clients
$75M+ revenue driven for clients
$75M+ revenue driven for clients
100+ ecommerce brands served
100+ ecommerce brands served
100+ ecommerce brands served
100+ ecommerce brands served
4.9/5 average client rating
4.9/5 average client rating
4.9/5 average client rating
4.9/5 average client rating
What makes our approach different
What makes our approach different
What makes our approach different
What makes our approach different
Sales first
Sales first
Sales first
Sales first
We don’t celebrate open rates or pretty layouts if they don’t move product. Every flow and campaign is built to increase conversions and tracked against sales.
We don’t celebrate open rates or pretty layouts if they don’t move product. Every flow and campaign is built to increase conversions and tracked against sales.
We don’t celebrate open rates or pretty layouts if they don’t move product. Every flow and campaign is built to increase conversions and tracked against sales.
E-commerce only
E-commerce only
E-commerce only
E-commerce only
We don’t split our attention across industries. Everything we’ve built, tested, and refined comes from working with e-commerce stores, which means we know your challenges inside out.
We don’t split our attention across industries. Everything we’ve built, tested, and refined comes from working with e-commerce stores, which means we know your challenges inside out.
We don’t split our attention across industries. Everything we’ve built, tested, and refined comes from working with e-commerce stores, which means we know your challenges inside out.
Adapted to your stack
Adapted to your stack
Adapted to your stack
Adapted to your stack
We work with more than just standard setups like Shopify and Klaviyo. Our team has deep experience with brands that use platforms such as Checkout Champ, Funnelish, and others. We understand the full customer journey and adapt to your needs, whether that means supporting complex funnels or sending multiple campaigns a day.
We work with more than just standard setups like Shopify and Klaviyo. Our team has deep experience with brands that use platforms such as Checkout Champ, Funnelish, and others. We understand the full customer journey and adapt to your needs, whether that means supporting complex funnels or sending multiple campaigns a day.
We work with more than just standard setups like Shopify and Klaviyo. Our team has deep experience with brands that use platforms such as Checkout Champ, Funnelish, and others. We understand the full customer journey and adapt to your needs, whether that means supporting complex funnels or sending multiple campaigns a day.
Custom, not cookie-cutter
Custom, not cookie-cutter
Custom, not cookie-cutter
Custom, not cookie-cutter
Your customers should never feel like they’re reading the same email as the brand next door. Every email is written, designed, and optimized for your store, never pulled from a library.
Your customers should never feel like they’re reading the same email as the brand next door. Every email is written, designed, and optimized for your store, never pulled from a library.
Your customers should never feel like they’re reading the same email as the brand next door. Every email is written, designed, and optimized for your store, never pulled from a library.
Meet the founders
Meet the founders
Meet the founders
We started Bossar as two friends with one mission to build an agency that feels like part of your team. From the beginning, we shared the vision of creating strategies that drive real growth and long-term success for every client we work with.
We started Bossar as two friends with one mission to build an agency that feels like part of your team. From the beginning, we shared the vision of creating strategies that drive real growth and long-term success for every client we work with.
We started Bossar as two friends with one mission to build an agency that feels like part of your team. From the beginning, we shared the vision of creating strategies that drive real growth and long-term success for every client we work with.
What people say about Bossar
What people say about Bossar
What people say about Bossar
What people say about Bossar
They are adaptive to new initiatives, proactively propose ideas, and engage in strategies that continuously improve.
Andrew Payne
Founder, Airmoto
They are adaptive to new initiatives, proactively propose ideas, and engage in strategies that continuously improve.
Andrew Payne
Founder, Airmoto
They are adaptive to new initiatives, proactively propose ideas, and engage in strategies that continuously improve.
Andrew Payne
Founder, Airmoto
Before working with Bossar, we tried multiple individuals and companies for email marketing but saw weak results. After a few months with Bossar, more than 25% of our total sales came from email. The team brings strong ideas and helps us grow the business. I highly recommend them.
Vladi Clurman
Co-Founder, home security brand
Before working with Bossar, we tried multiple individuals and companies for email marketing but saw weak results. After a few months with Bossar, more than 25% of our total sales came from email. The team brings strong ideas and helps us grow the business. I highly recommend them.
Vladi Clurman
Co-Founder, home security brand
Before working with Bossar, we tried multiple individuals and companies for email marketing but saw weak results. After a few months with Bossar, more than 25% of our total sales came from email. The team brings strong ideas and helps us grow the business. I highly recommend them.
Vladi Clurman
Co-Founder, home security brand
After two months with Bossar, our email revenue increased by 20% to 30%. Their flows and campaigns are professional, creative, and far beyond what we could do ourselves. If you want experts to take over your email marketing, I recommend Bossar.
Joost Hartog
Founder, apparel brand
After two months with Bossar, our email revenue increased by 20% to 30%. Their flows and campaigns are professional, creative, and far beyond what we could do ourselves. If you want experts to take over your email marketing, I recommend Bossar.
Joost Hartog
Founder, apparel brand
What I like about Bossar is that their emails are very high quality, which matters for my skincare brand. They are also very flexible. When I have an idea, I just send a message and they start working on it right away.
Dorien Grauwels
Founder, skincare brand
What I like about Bossar is that their emails are very high quality, which matters for my skincare brand. They are also very flexible. When I have an idea, I just send a message and they start working on it right away.
Dorien Grauwels
Founder, skincare brand
What I like about Bossar is that their emails are very high quality, which matters for my skincare brand. They are also very flexible. When I have an idea, I just send a message and they start working on it right away.
Dorien Grauwels
Founder, skincare brand
After two months with Bossar, our email revenue increased by 20% to 30%. Their flows and campaigns are professional, creative, and far beyond what we could do ourselves. If you want experts to take over your email marketing, I recommend Bossar.
Joost Hartog
Founder, apparel brand
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Firas Balaffou
Founder, TheraPetMD
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Firas Balaffou
Founder, TheraPetMD
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Ong Leng Joo
Co-Founder, Cupids
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Ong Leng Joo
Co-Founder, Cupids
We've been working with Bossar for 3 months now and I can highly recommend Sergey and his team if you're in eCommerce and need help with e-mail marketing. They more than doubled my revenue coming from e-mail within the first month. Communication is always clear. These guys don't disappoint.
Sam Zegersmmons
Founder, The Case Club LA
We've been working with Bossar for 3 months now and I can highly recommend Sergey and his team if you're in eCommerce and need help with e-mail marketing. They more than doubled my revenue coming from e-mail within the first month. Communication is always clear. These guys don't disappoint.
Sam Zegersmmons
Founder, The Case Club LA
We've been working with Bossar for 3 months now and I can highly recommend Sergey and his team if you're in eCommerce and need help with e-mail marketing. They more than doubled my revenue coming from e-mail within the first month. Communication is always clear. These guys don't disappoint.
Sam Zegersmmons
Founder, The Case Club LA
They are doing a great job! Before we started working with them our email revenue made up 3% of our total revenue. They promised us that they can increase it to 25-30% so we had to try their service. A few months later I can confidently say that we weren't disappointed at all. They managed to increase our email revenue within a few days already to more than 20% of our total revenue and continued to split test emails continuously ending up with at least 25% every day (even 30+ on some days!!!). That helped us especially on days where our online advertising was not performing too well as we could always bet on some sales from email marketing. If you are looking to increase your email revenue drastically Bossar is your go-to!
Nils-Christopher Dahms
Founder, WoodVenture
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo conat, sunt in culpa qui officia deserunt mollit anim id est laborum.
Firas Balaffou
Founder, TheraPetMD
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
Ong Leng Joo
Co-Founder, Cupids
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
Ong Leng Joo
Co-Founder, Cupids
They are doing a great job! Before we started working with them our email revenue made up 3% of our total revenue. They promised us that they can increase it to 25-30% so we had to try their service. A few months later I can confidently say that we weren't disappointed at all. They managed to increase our email revenue within a few days already to more than 20% of our total revenue and continued to split test emails continuously ending up with at least 25% every day (even 30+ on some days!!!). That helped us especially on days where our online advertising was not performing too well as we could always bet on some sales from email marketing. If you are looking to increase your email revenue drastically Bossar is your go-to!
Nils-Christopher Dahms
Founder, WoodVenture
They are doing a great job! Before we started working with them our email revenue made up 3% of our total revenue. They promised us that they can increase it to 25-30% so we had to try their service. A few months later I can confidently say that we weren't disappointed at all. They managed to increase our email revenue within a few days already to more than 20% of our total revenue and continued to split test emails continuously ending up with at least 25% every day (even 30+ on some days!!!). That helped us especially on days where our online advertising was not performing too well as we could always bet on some sales from email marketing. If you are looking to increase your email revenue drastically Bossar is your go-to!
Nils-Christopher Dahms
Founder, WoodVenture
The Bossar Agency has done a great job after taking over management of our ecommerce email marketing. The team there understands email marketing, how to use Klaviyo, and actively works with us to keep new content and offers going out to our list.
Erik Nordman
Founder, MyPetPrints
The Bossar Agency has done a great job after taking over management of our ecommerce email marketing. The team there understands email marketing, how to use Klaviyo, and actively works with us to keep new content and offers going out to our list.
Erik Nordman
Founder, MyPetPrints
The Bossar Agency has done a great job after taking over management of our ecommerce email marketing. The team there understands email marketing, how to use Klaviyo, and actively works with us to keep new content and offers going out to our list.
Erik Nordman
Founder, MyPetPrints
We brought in Bossar to build our automations and manage ongoing email campaigns. The team was easy to work with, fast in execution, and receptive to new ideas. Their efforts deliver 15–20% of our store revenue via email and SMS. Communication was quick and reliable, and the collaboration went smoothly.
Yevhenii Ahapov
Co-Founder, Galaxate
We brought in Bossar to build our automations and manage ongoing email campaigns. The team was easy to work with, fast in execution, and receptive to new ideas. Their efforts deliver 15–20% of our store revenue via email and SMS. Communication was quick and reliable, and the collaboration went smoothly.
Yevhenii Ahapov
Co-Founder, Galaxate
We brought in Bossar to build our automations and manage ongoing email campaigns. The team was easy to work with, fast in execution, and receptive to new ideas. Their efforts deliver 15–20% of our store revenue via email and SMS. Communication was quick and reliable, and the collaboration went smoothly.
Yevhenii Ahapov
Co-Founder, Galaxate
Ready to unlock your full
revenue potential?
Ready to unlock your full
revenue potential?
Ready to unlock your full
revenue potential?
Ready to unlock your full
revenue potential?
Reach out to us:
team@bossar.agency
Want to spot lost revenue?
© 2025 Bossar. All rights reserved.
Reach out to us:
team@bossar.agency
Want to spot lost revenue?
© 2025 Bossar. All rights reserved.
Reach out to us:
team@bossar.agency
Want to spot lost revenue?
© 2025 Bossar. All rights reserved.
Reach out to us:
team@bossar.agency
Want to spot lost revenue?
© 2025 Bossar. All rights reserved.
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