Top Email and SMS Marketing Agencies in the US

Last Updated on March 5, 2025 by Damien Hurwitz

In today’s digital landscape, email and SMS marketing remain two of the most powerful channels for brands looking to engage, convert and retain customers. With so many agencies claiming to be the right fit, how do you find the right partner to elevate your marketing efforts?

We’ve some of the research for you. Whether you’re a fast-growing eCommerce brand, a tech startup, or an established retailer, this list highlights some of the top email and SMS marketing agencies in the U.S. These agencies are known for their expertise in automation, personalization, segmentation, and results-driven strategies that turn subscribers into loyal customers.

From boutique firms specializing in high-touch campaigns to industry giants managing multi-million-dollar email and SMS programs, this list has something for every business. Ready to find your perfect marketing partner? Let’s dive in.

• • 1. Influence & Co. – Blends content marketing with email strategies to build brand authority and engagement.
    2. BrightWave – Known for innovative email marketing campaigns and strategic consulting services.
    3. BKV – Data-driven agency that combines analytics with creative email marketing strategies.
    4. Email Uplers – Specializes in custom email template design, coding, and campaign management.
    5. SmartBug Media – Offers full-service email marketing with a focus on inbound strategy and automation.
    6. Power Digital – A digital marketing agency with expertise in email, SMS, and customer retention strategies.
    7. Noble Studios – Delivers creative, high-performance digital marketing, including email and automation.
    8. Sandhill Digital – E-commerce-focused agency integrating email, SMS, and paid media marketing.
    9. Frictionless Commerce – Specializes in persuasive email copywriting to increase conversions and sales.
    10. Inbox Army – A full-service email marketing agency known for its hands-on client support.
    11. Bluecore – AI-powered email marketing platform focused on automation for retail brands.
    12. Juvlon – Provides email and SMS automation solutions to help businesses grow engagement.
    13. Digital Operative – Integrates email marketing with e-commerce strategies for holistic growth.
    14. SmartMail – An email marketing agency that helps e-commerce brands improve retention and revenue.
    15. MH Digital – Expert in Braze and Klaviyo, offering personalized email marketing strategies.
    16. Listrak – Cross-channel marketing automation platform with a strong focus on email.
    17. Baer Performance Marketing – Helps brands craft targeted email campaigns to boost customer loyalty.
    18. CodeCrew – A creative-first email marketing agency focused on high-impact designs and messaging.
    19. Flowium – A Klaviyo-focused agency offering email automation and revenue-driving strategies.
    20. Actuate Media – Data-driven agency specializing in brand-focused and conversion-driven email marketing.
    21. RPE Origin – A performance marketing agency that leverages email to drive measurable results.
    22. Clixlogix – Delivers result-oriented email marketing services to enhance brand visibility.
    23. FulcrumTech – Full-service email marketing agency specializing in strategy, automation, and analytics.
    24. Tinuiti – A performance-driven marketing agency specializing in lifecycle email marketing.
    25. Omnisend Agency Partners – A network of agencies specializing in Omnisend email and SMS marketing.
    26. Retention Rocket – Focuses on using email and SMS to boost customer retention and lifetime value.
    27. Netcore Solutions – AI-powered email marketing agency providing personalized customer engagement.
    28. The Snow Agency – A digital agency offering conversion-focused email and SMS marketing solutions.
    29. Email Broadcast – A full-service agency managing every aspect of email marketing campaigns.
    30. Bounteous – A digital transformation agency that integrates email with broader marketing strategies.
    31. eMessageMedia – Helps brands create personalized email experiences that drive conversions.
    32. Essencius – Specializes in storytelling-driven email campaigns for stronger customer connections.
    33. Rejoiner – An e-commerce email marketing agency known for lifecycle automation campaigns.
    34. Klaviyo Agency Partners – A network of agencies specializing in Klaviyo email automation.
    35. Minds On – B2B digital marketing agency creating strategic and engaging email campaigns.
    36. Ansira – Uses data-driven insights to integrate email with CRM and customer experience strategies.
    37. Mediaboom – A creative digital agency with expertise in email marketing for luxury brands.
    38. Anderson Collaborative – Provides comprehensive email marketing strategies tailored to client needs.
    39. eFocus Marketing – Specializes in automation and customer journey mapping for email success.
    40. Intero Digital – A digital marketing agency with expertise in email personalization and segmentation.
    41. Belardi Wong – Direct-to-consumer growth agency using email marketing to scale brands.
    42. Response Labs – Focuses on building meaningful customer relationships through email marketing.
    43. Epsilon – A data-driven marketing powerhouse crafting impactful email campaigns.
    44. Alchemy Worx – Leverages behavioral email marketing to enhance customer engagement.
    45. Hawke Media – Offers flexible, full-service email marketing strategies for brands of all sizes.
    46. Indiemark – A strategic consulting agency that helps brands maximize email performance.
    47. Emarketed – Provides tailored email marketing strategies to drive engagement and revenue.
    48. Martal Group – B2B lead generation agency that leverages email for client outreach.
    49. The Snow Agency – A performance marketing agency helping brands scale through email and SMS.
    50. RPE Origin – A results-driven agency specializing in email marketing for brand growth.

If you’d like help growing your business via email and SMS marketing, contact us today for a free strategy consultation.