Top Agencies with Monthly Retainer Pricing for United States 2026

EBQ is a dynamic agency specializing in sales and marketing services, particularly in appointment setting, lead generation, and B2B sales. Renowned for its professional communication and timely delivery, 86% of reviewers highlight EBQ's excellence. Clients value its data-driven strategies and seamless integration with systems like Salesforce, enhancing outreach and email engagement.

Phi Consulting is a GTM and technological consulting agency based in the US. It has 10+ years of experience in consulting and has worked with many startups. Its consulting is based on providing niche-specific services. Apart from startups, they also work with SMEs with their services. They have 10+ business partners for whom they have generated more than $200M+ ARR.

IntentSignal builds custom outbound systems that others can't. Our in-house GTM engineers create custom outbound infrastructure to help you generate quality leads. If cold email hasn't worked for you yet, it's not impossible, especially when you work with IntentSignal.

Whether it's a 1:many, 1:few or 1:1, ABM pilot campaigns, supporting your internal ABM team or plotting a course to a full blown ABM CoE. ABMA has the expertise to make your ABM goals a reality.

Creatop is a B2B cold email and outbound marketing agency based in Sheridan, Wyoming. They help businesses scale through automated, AI‑enhanced outreach—from target research to appointment setting. Perfect for clients seeking a reliable, data‑backed system to fill pipelines and book sales calls without hiring internally.

Lumos builds scalable outbound systems for B2B teams—anchored on LinkedIn and expanded with cold email, appointment setting to create a qualified pipeline without the cost and complexity of in-house SDRs.

Inbox Army, LLC is your go-to email marketing agency, known for nailing Email Campaigns and Engagement Strategies. With a perfect feedback score, clients rave about their professionalism and quick responses. They really know how to boost email deliverability and engagement, leading to impressive increases in open and click-through rates!

Giant Partners is all about email marketing, offering both Email Campaigns and Automated Email Campaigns. Reviewers love their professionalism and communication, with 100% positive feedback! Half of them rave about the impactful email engagement strategies that really make a difference.

Flowium is a premier Email Marketing agency specializing in Email Campaigns and Automation. With a flawless on-time project delivery rate and 90% client satisfaction for prompt responses and innovative solutions, their mastery in developing effective email strategies has driven remarkable results, including a 42% rise in average order value and a 50% revenue growth.

108 Degrees Digital Marketing specializes in email marketing, focusing on campaigns, automation, and list management. Clients commend their project management, responsiveness, and outreach expertise. Notably, they achieved a 12% increase in click rates and a 26% decrease in unsubscribe rates, showcasing their effective engagement strategies.

LYFE Marketing is a digital marketing agency excelling in email marketing and social media management. Clients consistently praise their responsiveness and quality, with 100% of reviewers noting effective communication and timely delivery. Their personalized approach shines in automated email campaigns and tailored newsletters, meeting diverse client needs.

FJ Solutions is a premier digital marketing agency focused on Email Marketing and Marketing Automation. They craft personalized strategies to elevate brand visibility and increase sales. Reviewers praise their expertise in designing impactful email campaigns and automation, boasting 100% positive feedback for project management and communication. About 50% highlight their success in enhancing customer engagement and retention through targeted email strategies.

Stimulate is a leading email marketing agency known for its outstanding design, branding, and data-driven strategies. With over 90% of reviewers commending their project management and timely delivery, they specialize in personalized campaigns that enhance engagement, boosting click-through rates and email-driven revenue. A few clients noted challenges adapting to internal workflows.

ProperExpression is a digital marketing firm excelling in email marketing, SEO, and comprehensive strategies. Clients commend their effective campaigns and innovative solutions, consistently receiving 100% positive feedback. Their strong communication, collaborative spirit, and impactful results in lead generation and ROI showcase a valued, adaptable partnership.