# Bossar

> Email & SMS Marketing Agency for eCommerce Brands

- Canonical listing: https://agencysource.com/agencies/bossar
- Location: Warszawa, Poland
- Categories: [Web Development](https://agencysource.com/categories/web-development), [Email & Lifecycle Marketing](https://agencysource.com/categories/email-marketing)
- Services: Email Marketing, SMS Marketing
- Industries: eCommerce
- Team size: 10 - 49
- Hourly rate: Undisclosed
- Minimum project: $5,000+
- Founded: 2021
- Website: https://bossar.agency
- Listing: Not yet claimed
- Agency Source rating: no Agency Source reviews yet

## About

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: bossar.agency/free-audit (no obligations) to get actionable insights tailored to your store.

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Source: Agency Source, https://agencysource.com/agencies/bossar. Ratings and reviews come only from reviews submitted and moderated on Agency Source; agencies cannot pay for rank.