Quartile, the world's largest retail media optimization platform, is a trusted partner for multichannel e-commerce success. Through patented AI technology and unmatched expertise, we fuel growth for 5,300+ brands and sellers worldwide and manage an annual ad spend exceeding $2 billion. The award-winning platform covers major marketplaces and ad channels for optimal reach. The result is unprecedented granularity, smarter budgeting, and bespoke solutions for retailers. Visit quartile.com to learn how to boost efficiency, outperform competitors, and achieve profitability.
Quartile (quartile.com) has 565 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
Also known as
quartile.com
Website
quartile.com
Category
IT & Communication
Location
New York, New York
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 67% of reviews.
Latest
Most recent review: October 2026.
Edits
Reviews are shown as their authors wrote them. The company can reply, but cannot edit them.
Score
This company cannot pay to remove reviews or change its score.
I work for a PPC agency and we acquired Quartile as a partner to manage client accounts that included Amazon advertising. Quartile was a great extension of our internal team and were very attentive and communicative -- very important qualities in a vendor you are sharing business with.
Response from QuartileMar 20, 2025
Thank you for your review, Gabrielle! We’re so glad to hear that Quartile has been a valuable extension of your internal team, and that our communication and attentiveness have met your expectations. We understand the importance of collaboration and are proud to be a reliable partner in managing your clients’ Amazon advertising.
BY
BYG
135% ACOS
Watch your hard-earned money I was a customer there, Eric was my brand manager I can write more details if you want, then you will be able to identify your account....
Response from QuartileMar 24, 2025
We appreciate your feedback, Barry. Given the high initial ACoS and misaligned expectations, we had limited time to achieve the desired results. Unfortunately, we just weren’t the best fit for each other, but we wish you all the best moving forward.
TA
Tanya
Left Quartile Over a Year ago and it was my best business decision
I left Quartile after almost 5 years of using their software, 4 years directly, and a year prior via an agency. I feel a huge sense of relief to be done with them. De-coupling from their software and their bloated middle management layers was a huge burden and took over a month.
TL;DR - take a look for yourself at my KPIs with Quartile and the new agency I replaced them with:
Final month w/ Quartile before switch:
ACoS: 30.3%
TACoS: 21.7%
% Organic Sales: 28.5%
3 weeks after leaving Quartile (with minimal optimizations and we're not done yet):
ACoS: 25.7%
TACoS: 15.2%
% Organic Sales: 40.9%
Revenue levels stayed the same, only 5% decrease in revenue.
Outdated strategy that became obsolete with the algorithm updates in late 2022. Unfortunately, many sellers have not yet caught onto this, as Quartile is exceptional at spending 90% of your ad budget on product targeting ads which do nothing to help your organic rank but will get you sales at high cost. So you can see your sales go up, at the expense (huge) of your profit, and long-term organic search rank for top keywords, which in turn will make your business growth unsustainable. Their software essentially makes your business into a pay to play vending machine with slim to non-existent margin.
Their AI tools are a black box, you will never have any input on keywords to target, bid optimizations and placements, and their strategies on these will deplete your bank accounts. Their account managers are great at giing you excel reports with performance, but nothing on how to move the needle in the right direct and affect the performance. Their end-user tool is clunky and looks like it's from 2010.
Their campaign structure and strategy is so bad, it pains me to calculate the lost sales and profit over the last 1.5 years from their ads de-ranking us on top keywords, and from the bloated campaigns leaking tens of thousands of dollars.
They were more interested this last year on selling me new platforms and services, than actually coming to me with solutions on how to fix the existing campaigns that didn't work well. Classic example of a company that grew too fast, hired too many people at once, and created so much middle management bloat and poor internal communication.
P.S. Response to Quartile's response:
Yes, indeed, I was a client for over 5 years. My experience above reflects the last 2 years, so it's my most recent and, therefore, most relevant, experience. Please note, this is not personal, and intended to harm Quartile. It's simply a warning to other sellers to not make the mistake I did, which cost me hundreds of thousands of dollars in wasted ad spend and opportunity cost of missed sales due to lost rankings over the course of that period. In addition, hopefully my review is a call to action for Quartile if you still intend to remain competitive in the ad space.
Lastly, the reason I reposted it is because Quartile reported my valid review on Trustpilot from over a year ago as fraudulent, which resulted in its removal by Trustpilot. Maybe if you spent as much effort on improving your service as you did in reputation management, you wouldn't have so many negative reviews...
Response from QuartileMar 25, 2025
Hi Tanya,
While we’re disappointed to see this review, we also want to acknowledge the years we worked together and the positive feedback you shared along the way. You remained a valued client for nearly five years, renewing your contract month after month, which reflected your satisfaction with our services at the time. You even took the time to leave us a glowing 5-star review during that span, calling us “instrumental for your business' success.” We recognize that change can be challenging, and as Quartile has grown, we have evolved significantly. However, our growth has allowed us to continue innovating and improving, which has made us the world’s leading retail media optimization platform.
It’s been over a year since our partnership ended, and we’re unsure why this continues to be a point of contention. Your review here is a copy of one left in November 2023 on another site, at which time you expressed your concerns, and we did our best to address them and part ways professionally. We’re happy to hear that things are going well for you with your new agency, and we truly wish you nothing but success moving forward.
At this point, we simply hope we can all move on from this matter in a respectful manner. Wishing you the best in all your future endeavors.
— The Quartile Team
GU
Guest U.
Fantastic Experience with Quartile!
I've had a fantastic experience with Quartile managing our Amazon PPC campaigns. As an AI-powered software solution, they've truly delivered on their promise to help us scale, grow, and achieve profitability. What's more, the process has been seamless thanks to our amazing account manager, Joao Costa. He's been incredibly helpful and supportive throughout, always available to answer questions and provide insightful guidance. I highly recommend Quartile to any brand looking to optimize their Amazon advertising and boost their bottom line. They've taken the complexity out of PPC management and allowed us to focus on other aspects of our business. Thanks to Joao and the entire Quartile team for their outstanding work!
Response from QuartileMar 20, 2025
Thank you for sharing your fantastic experience with Quartile! We’re thrilled to hear that our platform has helped scale your Amazon PPC campaigns, and that Joao has provided the support and guidance needed to drive success. Your recommendation means the world to us, and we look forward to continuing to support your growth and success with our team!
TE
tom E.
We worked with Quartile for 2 years
We worked with Quartile for 2 years. The most decitful software I have ever used. On the surface, everything looks good. When you dig deeper and look at the real numbers, the real results... 85% of spend is wasted money... 15% of spend generates profit. How much profit should a company have if 85% of the spend is not wasted... If you don't want to know the answer to this question... Don't use Quartile...
Response from QuartileFeb 11, 2025
Thank you for your feedback, Tom. We want to address your concerns appropriately. We’ve reached out for more details so we can assist.
AN
Anonymous
Quartile consistently goes above and beyond
Quartile consistently goes above and beyond to support our success. Their team is highly reliable, ensuring we have a strong, well-thought-out strategy to achieve our goals. Recently, when we saw a performance dip due to increased budgets, Quartile quickly stepped in to implement an effective strategy while keeping us informed every step of the way. They provided proactive updates on progress, demonstrating that their optimizations were working. Thanks to their expertise and responsiveness, we not only recovered but also met our goals. We couldn’t be more pleased with the results.
Response from QuartileMar 20, 2025
Thank you for your amazing feedback! We’re delighted to hear that our team’s quick response and strategic adjustments made a difference during a challenging moment. At Quartile, we’re committed to being proactive, and it’s fantastic to know our efforts helped you not only recover but exceed your goals. Your success is our priority, and we’re thrilled to have played a part in it.
MG
Matt G.
A Very Satisfied Customer!
The team at Quartile keeps our ad campaigns running efficiently and performing well. They care about our success and save our team from having to manage our ads in-house. We are pleased with the work they have done for us and have been a happy client for many years.
Response from QuartileMar 20, 2025
Matt, we’re thrilled to hear how satisfied you are with the work our team has been doing for you! The long-term partnership we’ve built together means a lot to us, and we’re excited to keep driving results for you in the years to come. Thank you for your continued trust and support!
ST
Steven
Honest Quartile Customer Review
I recently had the pleasure of working with Cris at Quartile, and I can confidently say that his expertise and commitment to driving results are exceptional. Cris possesses a deep knowledge of digital marketing strategies and analytics, which he applies skillfully during each session. He consistently identifies actionable insights and innovative approaches tailored to our needs, focusing on maximizing our Return on Ad Spend (ROAS). I feel like the sessions aren't just "going through the motions" and Cris and team actively work on making countless adjustments for the betterment of our marketing strategy. I look forward to our periodic strategy meetings (and cannot say that about every agency I have or am currently working with)!
Response from QuartileMar 20, 2025
Thank you so much for your detailed and thoughtful review, Steven! We’re thrilled to hear that Cris has been able to provide the expertise and innovative strategies that truly make a difference in optimizing your ROAS. Cris is truly an asset to our team, bringing not only deep knowledge but a passion for driving results that positively impact our clients’ success. We value your partnership and look forward to many more successful strategy meetings ahead!