--- title: Epsilon Services Reviews meta\_title: 'Epsilon Services Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 16 reviews by the users' company size, role or industry to find out how Epsilon Services works for a business like yours. aggregate\_rating: rating\_value: 2.9 review\_count: 16 scale: '5' date\_modified: '2026-08-10' parent\_category: name: Advertising Agencies url: https://www.g2.com/categories/advertising-agencies --- ### Epsilon Services Pros and Cons: Top Advantages and Disadvantages #### Quick AI Summary Based on G2 Reviews Generated from real user reviews Users praise the **customization options** in Epsilon Services, enhancing their overall experience with tailored solutions. [(1 mentions)](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662385&qs=pros-and-cons#reviews) Users value the **personalization of lists** in Epsilon Services, enhancing their overall experience and engagement. [(1 mentions)](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662397&qs=pros-and-cons#reviews) Users face significant **communication issues** with Epsilon Services, leading to delays and frustration in campaigns. [(1 mentions)](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662370&qs=pros-and-cons#reviews) Users report significant **delivery delays** with Epsilon Services, causing substantial setbacks in their campaigns. [(1 mentions)](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662414&qs=pros-and-cons#reviews) Users are frustrated by Epsilon's **poor customer support** , leading to significant delays and unmet campaign expectations. [(1 mentions)](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662421&qs=pros-and-cons#reviews) ### Top Pros or Advantages of Epsilon Services ##### 1. Customization Users praise the **customization options** in Epsilon Services, enhancing their overall experience with tailored solutions. [ See 1 mentions ](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662385&qs=pros-and-cons#reviews) See Related User Reviews NC Nathan C. Small-Business (50 or fewer emp.) 0.0/5 "Terrible Experience" What do you like about Epsilon Services? Customized list modeling, availability of lists ##### 2. Personalization Users value the **personalization of lists** in Epsilon Services, enhancing their overall experience and engagement. [ See 1 mentions ](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662397&qs=pros-and-cons#reviews) See Related User Reviews NC Nathan C. Small-Business (50 or fewer emp.) 0.0/5 "Terrible Experience" What do you like about Epsilon Services? Customized list modeling, availability of lists ### Top Cons or Disadvantages of Epsilon Services ##### 1. Communication Issues Users face significant **communication issues** with Epsilon Services, leading to delays and frustration in campaigns. [ See 1 mentions ](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662370&qs=pros-and-cons#reviews) See Related User Reviews NC Nathan C. Small-Business (50 or fewer emp.) 0.0/5 "Terrible Experience" What do you dislike about Epsilon Services? After jumping through many hoops to launch our latest direct mail campaign, we were continually strung along until finally, Epsilon stated they would ##### 2. Delivery Delays Users report significant **delivery delays** with Epsilon Services, causing substantial setbacks in their campaigns. [ See 1 mentions ](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662414&qs=pros-and-cons#reviews) See Related User Reviews NC Nathan C. Small-Business (50 or fewer emp.) 0.0/5 "Terrible Experience" What do you dislike about Epsilon Services? After jumping through many hoops to launch our latest direct mail campaign, we were continually strung along until finally, Epsilon stated they would ##### 3. Poor Customer Support Users are frustrated by Epsilon's **poor customer support** , leading to significant delays and unmet campaign expectations. [ See 1 mentions ](https://www.g2.com/products/epsilon-services/reviews?filters%5Bsentiment_snippet%5D=1662421&qs=pros-and-cons#reviews) See Related User Reviews NC Nathan C. Small-Business (50 or fewer emp.) 0.0/5 "Terrible Experience" What do you dislike about Epsilon Services? After jumping through many hoops to launch our latest direct mail campaign, we were continually strung along until finally, Epsilon stated they would ## Top-Rated Alternatives [ ![KlientBoost](https://images.g2crowd.com/uploads/product/hd_favicon/d401505df2906f8be19479a4c9ab47c8/klientboost.svg "KlientBoost") KlientBoost 4.8/5(403) ](https://www.g2.com/products/klientboost/reviews) [ ![memoryBlue](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_cb841c012e925444d76958f016cba17e/memoryblue.jpg "memoryBlue") memoryBlue 4.6/5(326) ](https://www.g2.com/products/memoryblue/reviews) [ ![INFUSE](https://images.g2crowd.com/uploads/product/hd_favicon/2fcde7ef94c7414eed3a1b5a23442f89/infusemedia-infuse.svg "INFUSE") INFUSE 4.5/5(294) ](https://www.g2.com/products/infusemedia-infuse/reviews) [ View All Alternatives ](https://www.g2.com/products/epsilon-services/competitors/alternatives) NC Nathan C. Small-Business (50 or fewer emp.) 10/30/2024 "Terrible Experience" 0/5 What do you like best about Epsilon Services? Customized list modeling, availability of lists Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? After jumping through many hoops to launch our latest direct mail campaign, we were continually strung along until finally, Epsilon stated they would not be able to deliver the list. This delayed our campaign by over 4 weeks. This company is not the high quality performer it was in the past. Review collected by and hosted on G2.com. Recommendations to others considering Epsilon Services: I found out later that Epsilon is a resller, not a top tier list broker. You would be better served going higher tier with a company like Data Axle or some other provider. Epsilon is simply a middle man for other companies list data Review collected by and hosted on G2.com. What problems is Epsilon Services solving and how is that benefiting you? We were using Epsilon for direct mail and some online marketing. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Thomas C V.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Thomas C V.") TV Thomas C V. Medical student Enterprise (\> 1000 emp.) 6/29/2022 "Excellent Service and High quality" 5/5 What do you like best about Epsilon Services? Epsilon Marketing services provided excellent service by providing OUTCOME-based marketing utilizing the data that I already had. This ensured that I was able to reach my target audience better and more efficiently. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? There is very little to dislike when the service provided meets the standards and requirements to ensure that I was able to hit my target demographic. Review collected by and hosted on G2.com. What problems is Epsilon Services solving and how is that benefiting you? Epsilon Marketing services provided excellent service by providing OUTCOME-based marketing utilizing the data that I already had. This ensured that I was able to reach my target audience better and more efficiently. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Sports](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Sports") TS Verified User in Sports Mid-Market (51-1000 emp.) 1/16/2020 "Archaic system, not very adaptable to 2020 marketing need for speed" 0.5/5 Describe the project or task Epsilon Services helped with: I use Epsilon Harmony to orchestrate all of my business's email marketing communications (1.7M audience). Despite our large audience, we are a lean digital marketing team and I am the only person running day-to-day operations in the platform. We use an on-prem Data Warehouse that stores our purchase data and CRM which does not integrate with Epsilon. We have an ongoing contract with them including monthly check-in calls to talk strategy, optimization, and innovations we can implement into our marketing strategy. Review collected by and hosted on G2.com. What do you like best about Epsilon Services? The platform has a nice report highlighting your engaged, high-risk, not-active, and never emailed contacts as well as a report for when your emails are getting opened (time of day and days of the week). Aside from that, I have to build pretty much all of our other reports in Excel to get accurate measurements around each of our segments over different time-periods. Their account management team is pretty innovative, especially Marlene and Polina. They've come up with many creative solutions to work around the platform's weaknesses and are pretty knowledgeable about the product. We had some communication friction when getting started, but since setting up regular check-in calls the process and experience has drastically improved. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? Taking into account the load times and the multi-step processes required for a simple request (exporting all contacts from a segment, creating dynamic content, running segment counts, and saving/deploying emails), I waste a lot of my time waiting on page loads and count updates. Few to no systems have integrations with Epsilon so you will need your own developer to integrate data feeds into the system, otherwise you need to devote 10-30 minutes to manipulate the CSV data from your data feed to correspond to Epsilon's finicky importing needs. The software has the ability to do advanced projects if you have the time to set them up and the development resources to set the appropriate API integrations to use as a trigger. The biggest frustration is the lack of control you have over your business and preference pages. All Epsilon Harmony forms (including your sign-up form and preference center) must be hosted on the Epsilon server and you will not have any ability to make updates as a user. Instead, you will need to pay upwards of $2,000 to make minor changes to this page, based on their time and scope estimates. Even with these scopes, it took over 12 weeks from request to completion to get a form field removed from our form. Heaven forbid we wanted to update the form fonts, colors, and images to better match our branding we likely would have been quoted well over $20,000 for the update. While it may be the cheapest option for an ESP of its caliber, you make up those costs in ad-hoc projects or software to support a multi-channel marketing program. If you run your lead-collection through several different sources that are not linking to the Epsilon sign-up or Manage Preferences form, you'll have a challenge adhering to subscriber preferences if you have several preference channels (i.e. Newsletter, Sales/Offers, Special Events, etc.) As they do not keep records of when someone opted out to a specific channel. Review collected by and hosted on G2.com. Recommendations to others considering Epsilon Services: This platform is best for businesses that have programming and developer resources to help with API integrations in addition to those familiar with email code and best practices. I do not recommend using if one person needs to execute all campaigns from start to finish in addition to reporting, database management, etc. If you run your business and data through one site with only a couple of partners, you won't face as many challenges. We have data and information and subscribers coming in from 15 different partners and do not have the developer manpower to write the appropriate APIs needed for all of this data to sync together so we have to manually do it in Excel and import into Epsilon which creates a time inefficiency and leaves room for errors. It can take upwards of 30 minutes just to format the data into the format Epsilon needs in order to accept it. Review collected by and hosted on G2.com. What problems is Epsilon Services solving and how is that benefiting you? Our POCs at Epsilon are really helpful and strive to help solve our problems in creative ways, but it seems they are basically trying to bandaid the platform rather than update the platform to adapt to today's digital communications capabilities and expectations. Some interesting solutions they've mentioned include automating our regular newsletter using an RSS feed from our website, reactivation campaign to re-engage lapsed subscribers and clean out deadweight contacts, and consulting around setting up email drip sequences around our giveaways and partner data collection. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic SV Swamy V. Android developer Mid-Market (51-1000 emp.) 9/6/2019 "How good it should be?" 2.5/5 Describe the project or task Epsilon Services helped with: It's very good to use in publicizing the content. Review collected by and hosted on G2.com. What do you like best about Epsilon Services? The way it uses crawling and helps to publicize. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? Nothing much to dislike about Epsilon, its good to use. Review collected by and hosted on G2.com. What problems is Epsilon Services solving and how is that benefiting you? `Publicizing the brand Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Food & Beverages](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Food & Beverages") AF Verified User in Food & Beverages Enterprise (\> 1000 emp.) 8/25/2018 "Good Service, Short Staffed" 3/5 Describe the project or task Epsilon Services helped with: Management of data collected in promotions Review collected by and hosted on G2.com. What do you like best about Epsilon Services? Primary contact is knowledgeable and efficienf Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? If our primary contact is OOO then nothing gets done because he doesn’t have a backup that has been trained. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Entertainment](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Entertainment") TE Verified User in Entertainment Small-Business (50 or fewer emp.) 12/21/2017 "Marketing Pioneers " 4/5 Describe the project or task Epsilon Services helped with: The tool helped us with the storing of consumer sign up information. Review collected by and hosted on G2.com. What do you like best about Epsilon Services? Useful partner that helps us engage with consumers using targeting and predictive analytics. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? Nothing at point. The relationship was very productive. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Entertainment](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Entertainment") AE Verified User in Entertainment Small-Business (50 or fewer emp.) 11/21/2017 "Epsilon is great" 3/5 Describe the project or task Epsilon Services helped with: Used conversant as a way to get audiences integrated in digital campaigns Review collected by and hosted on G2.com. What do you like best about Epsilon Services? had great service with our partners and detailed audience planning Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? wish there was a client dashboard we could access directly Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Meggan W.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Meggan W.") MW Meggan W. Talent Acquisition Specialist Staffing and Recruiting Small-Business (50 or fewer emp.) 8/28/2017 "Easy to use, easy to learn " 4/5 Describe the project or task Epsilon Services helped with: It helped organize tasks and data efficiently. Review collected by and hosted on G2.com. What do you like best about Epsilon Services? The efficiency and how easy it is to use the system Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? I wish there were more options for tasks Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Organic ![Verified User in Transportation/Trucking/Railroad](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Transportation/Trucking/Railroad") TT Verified User in Transportation/Trucking/Railroad Mid-Market (51-1000 emp.) 8/17/2017 "Epsilon was easy to work with" 4.5/5 Describe the project or task Epsilon Services helped with: We worked with Epslion to create postcards Review collected by and hosted on G2.com. What do you like best about Epsilon Services? Easy to work with and they produced our product quickly. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? Only allow a few revisions without getting charged extra. Review collected by and hosted on G2.com. Show More 11/12/2017 Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Consumer Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Consumer Services") MC Verified User in Consumer Services Mid-Market (51-1000 emp.) 10/26/2017 "Epsilon is great" 4/5 Describe the project or task Epsilon Services helped with: We utilize Epsilon for their Direct Mail services. We have always been very impressed with their professionalism, great feedback, and expert guidance. They are also very efficient and organized. We have also utilized them for a few email marketing campaigns, which were successful. Review collected by and hosted on G2.com. What do you like best about Epsilon Services? We like their efficiency, professionalism, and customer service. Review collected by and hosted on G2.com. What do you dislike about Epsilon Services? There is nothing we dislike at this time Review collected by and hosted on G2.com. Recommendations to others considering Epsilon Services: Definitely use them for direct mail campaigns. Review collected by and hosted on G2.com. 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