Email & SMS Marketing Agency for DTC Brands

Bossar is a specialized eCommerce email marketing agency focused on email and SMS. With 5+ years of experience and a proven track record across 100+ stores, we focus exclusively on retention marketing that drives measurable results.

Most of the brands we work with are established eCommerce businesses, and the majority of our clients operate in the 6- to 8-figure revenue range. This focus allows us to craft strategies built for scale, helping growth-minded brands unlock the full potential of email and SMS. Our longest-standing client has been with us for over 4 years, proof that our strategies create growth that lasts.

As a full-service email marketing agency, our core offer is done-for-you email & SMS management, which covers every aspect of retention marketing, including:

✔️ Automated email & SMS flows tailored to your brand and customer journey
✔️ Campaign planning, execution, and optimization
✔️ Audience segmentation and advanced personalization
✔️ Custom design + conversion-driven copywriting
✔️ Deliverability monitoring and inbox placement
✔️ A/B testing and performance optimization
✔️ Detailed reporting and actionable insights

If your store is under $50K/month in sales or you’re not ready for ongoing monthly management, we also offer one-time flow setups and custom projects designed to match your tech stack and business needs. Whether you need a dedicated Klaviyo email marketing agency or support with another ESP, our team builds flows and campaigns tailored to your system.

With Bossar, you’re not hiring a generic provider, you’re partnering with a retention-focused email marketing agency that lives and breathes email & SMS, turning them into your most profitable growth channels.

Want to identify missed revenue opportunities in your retention marketing? Visit our website and apply for a free audit here: https://bossar.agency/free-audit (no obligations) to get actionable insights tailored to your store.

Poland Poland
Anny German, Warsaw, Warsaw 01794
NA
10 - 49
2021

Service Focus

Focus of Digital Marketing
  • Email Marketing - 100%

Industry Focus

  • E-commerce - 100%

Client Focus

50% Medium Business
50% Small Business

Review Analytics of Bossar

5
Total Reviews
5.0/5
Overall Rating
0
Recent Reviews

What Users Say

Excellent Company
Paras Raichura
Paras Raichura
Amazing Work
Shawn
Shawn
Awesome Shopify experts
Tobias Külper
Tobias Külper , Founder & COO at brandions GmbH
Excellent Work
Hugo Cardinale
Hugo Cardinale , President/CEO at LeadBurst Marketing, LLC
The best design firm we have worked with
Neville Woller
Neville Woller , Cofounder at Zudello

What Users Like The Most

  • The design team is unbeatable.
  • Professional and detailed
  • Great communication and results!

What Users Like The Least

  • English fluency
  • I am very happy with them and they have delivered on all fronts
  • Nothing at this time.

Detailed Reviews of Bossar

5.0 5 Reviews
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  • Digital Marketing
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  • Most Recent
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  • Rating: low to high
Write a Review
Paras Raichura
Paras Raichura
Posted on Jul 03, 2020

Excellent Company

Sergey and his team are great! They are results driven and have made a big impact to our e-commerce clients and email marketing. They’ve helped scale some of our clients to over 40% additional revenue. Highly recommend!

What service was provided as part of the project?

Digital Marketing

What is it about the company that you appreciate the most?

Great communication and results!

What was it about the company that you didn't like which they should do better?

I am very happy with them and they have delivered on all fronts

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

  • $0 to $10000
Shawn
Shawn
Posted on Mar 25, 2020

Amazing Work

I had an amazing experience working with this firm. They were fast, professional, detailed, and super patient with me. They were able to hold my hand during the process. Definitely will work with Bossar again.

What service was provided as part of the project?

Digital Marketing, Web Development

What is it about the company that you appreciate the most?

Professional and detailed

What was it about the company that you didn't like which they should do better?

English fluency

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

  • $0 to $10000
Tobias Külper
Tobias Külper, Founder & COO at brandions GmbH
Posted on Mar 22, 2019

Awesome Shopify experts

We've worked with Bossar to create our Shopify store and they are awesome experts on this field. They've developed an ultra fast and great store for us and documented & explained every function well with tutorial videos.

What service was provided as part of the project?

E-commerce Development

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating
Hugo Cardinale
Hugo Cardinale, President/CEO at LeadBurst Marketing, LLC
Posted on Mar 19, 2019

Excellent Work

We provided a mock and scope of the design we needed. They delivered a perfect design of the pages exactly as we wanted them. Communication was excellent. Very talented team. We will work with them again.

What service was provided as part of the project?

Web Design

What is it about the company that you appreciate the most?

Easy to communicate with, follows instructions exactly, time of completion as we discussed.

What was it about the company that you didn't like which they should do better?

Nothing at this time.

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

  • $0 to $10000
Neville Woller
Neville Woller, Cofounder at Zudello
Posted on Feb 25, 2019

The best design firm we have worked with

The team works hard and provides an exceptional product. I'm continually amazed at what they are able to design and develop, whether it be one of the many Shopify stores we have done for them or a Saas website. I am a perfectionist and often have multiple revisions, which they have implemented without any fuss. I highly recommend the Bossar design team.

What service was provided as part of the project?

E-commerce Development, Web Design

What is it about the company that you appreciate the most?

The design team is unbeatable.

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

  • $0 to $10000