Trendline Interactive Named Clear Leader in Overall Client Satisfaction Among Email Marketing Agencies

Hannah Wilson

2 minute read

Findings from The Relevancy Group study put Trendline well ahead of competition.

AUSTIN, Texas – November 5, 2018 – The Relevancy Group, a market research and advisory services firm, awarded Trendline Interactive top honors in overall client satisfaction in its annual Email Agency Buyer’s Guide over other agency participants including BrightWave, DEG, Inbox Marketer, and Yes Marketing.

Agencies were evaluated on core capabilities in three key areas: strategy, data management and analysis/measurement. After surveying 402 marketers with 300 different data points per vendor, Trendline was the clear winner in overall client satisfaction with an average satisfaction score of 4.73 out of 5 across all service areas. The next highest average customer satisfaction score was 4.52 out of 5, while the industry mean was 3.86 out of 5. Clients reported “overwhelmingly high satisfaction scores across the entire range of the firm’s services,” The Relevancy Group said.

“Trendline’s deep expertise across all facets of email marketing puts them in the consideration set of any organization that seeks to get more out of their email program through innovation,” said The Relevancy Group. “We were particularly impressed with its data management and analytical capabilities. Deeper analytics, Artificial Intelligence (AI), Machine Learning (ML) and Customer Data Platform (CDP) connectivity are all items on their robust roadmap.”

The Relevancy Group found clients were enthusiastic about the recent addition of Inbox Pros to the Trendline Interactive family, which adds leading-edge deliverability, privacy, and compliance to Trendline’s comprehensive services solutions.

“It is gratifying to see our commitment to clients’ success recognized by The Relevancy Group,” said Morgan Stewart, Trendline Interactive’s Co-Founder and CEO. “We are obsessed with helping enterprise organizations solve complex challenges and transform their email marketing programs. This report validates that our ongoing investments in analytics, strategy, deliverability, and privacy are helping us deliver on that mission”

Each year, The Relevancy Group invites email marketing agencies that serve mid-market companies in the U.S. and Canada, and large enterprise clients worldwide, to participate in their research. The company interviewed client references, collected anonymous satisfaction data, and scored each vendor relative to their presentation of an email marketing program for a fictional company.

In this year’s report, Trendline Interactive received special recognition in the areas of Educational Resources, Campaign Execution, Customer Support, Analytic Services, and Technical Services. Last year’s report saw Trendline receive special recognition in the areas of Account Management, Creative, and Strategy.

To view the Email Agency Buyer’s Guide 2018 go here.

About Trendline Interactive

Trendline Interactive is a full-service email marketing agency providing world-class end-to-end email solutions for world-class brands. With experts in email strategy, operations, marketing technology, creative, deliverability and analytics, Trendline delivers optimum performance through email marketing excellence. Headquartered in Austin, TX, Trendline also has offices in Chicago, IL, Portland, OR, and Atlanta, GA. In September 2018, Trendline acquired Inbox Pros the leading email deliverability and privacy consulting firm in the United States. For additional information visit and

About The Relevancy Group

Measuring consumer and executive behaviors, The Relevancy Group (TRG) combines original and thought-provoking market research with unrivaled advisory services to help buyers and sellers alike to compete more effectively and navigate digital transformation. TRG also publishes the digital magazine and app, The Marketer Quarterly.

Please contact Stephen Ryan, Vice President of Marketing at with any questions.

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