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.
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Is Quartile legit?
Quartile (quartile.com) has a 4.9 out of 5 rating on OK.one, based on 101 user reviews collected here. It is listed under Business Services and its reputation is excellent. Praise is nearly unanimous, with 97% rating it 4 stars or higher; The business has replied to 100% of negative reviews; Reviews mostly discuss User experience, Customer service. Last updated 2026-08-30.
What reviewers say
AI generated
Reviewers overwhelmingly had a great experience with this company. Customers frequently highlight the dedicated staff and incredibly smooth onboarding process that make setting up campaigns feel completely stress-free and straightforward. People consistently share that the platform effectively enhances ad performance, resulting in noticeable sales growth and improved efficiency. Consumers appreciate the clear data points and professional guidance provided throughout the entire partnership.
However, some people mentioned facing issues with poor communication and a lack of proper responsiveness from their representatives. A few reviewers also felt that the services were rather costly and failed to generate the expected return on their advertising investments.
Auto-generated from all reviews of this business. For reference only.
I never leave reviews however this time I have to mention my experience. I have been working with Katuxa Naconecy at Quartile for over a year and it has been positive all around. She is an amazing person and took care of everything. Truly a pleasure working together. My company made impressive gains, my accounts are stable and I feel secure moving forward with them. Give their service a try!
Reply from Quartile2026-07-15
David, we truly appreciate you taking the time to share this, especially knowing you don’t typically leave reviews. It’s fantastic to hear that Katuxa and the team have helped bring stability, confidence, and meaningful growth to your business. We’ll be sure to pass along your kind words to Kat, and we’re grateful to continue being a trusted partner for your team.
Great team, knowledgeable, efficient and supportive. I would recommend!
Reply from Quartile2026-07-15
Thank you, Alison! We truly appreciate the recommendation. It's a privilege to work alongside your team, and we're grateful for your trust and partnership.
Great communication and help every step of the way.
Reply from Quartile2026-07-15
Thank you, Justin. We appreciate your feedback and are glad our team has been there to support you every step of the way. We look forward to continuing to help your business grow.
Our rep at Quartile, Bruno, listened to our needs and provided excellent insight and suggestions. He played an important role in helping us improve our ads and analyze the results for more strategic path forward.
Reply from Quartile2026-07-15
Thank you, Bryan. We believe the best partnerships start with listening, and we're glad Bruno was able to provide the strategic guidance your team needed. We appreciate your trust and look forward to helping you build on that progress.
I've worked with many marketing agencies in my career. Few deliver significant results like Quartile. I especially enjoyed working with Katuxa "Kat". She lead the team supporting us. Always informed, good insights, always prepared. Great results. Thank you Kat & team!
Reply from Quartile2026-07-15
Jim, thank you for the thoughtful review. Hearing that Quartile stands out among the many agencies you've worked with is incredibly rewarding. We'll be sure to share your recognition with Kat and the team. They'll be thrilled to know their preparation, insights, and dedication have made such a positive impact.
Gustavo (and Roger!) have gone above and behind. I'm so grateful for their guidance to to have them as an extension of our team.
Reply from Quartile2026-06-30
Thank you for the review, Katie. It’s wonderful to hear Gustavo and Roger have made such a positive impact. We’re grateful for your trust and are proud to have them serving as an extension of your team.
As a new customer I feel good, Fabio is helping me not only understand how the methodology works but also understand my account from a better perspective.
Reply from Quartile2026-06-30
Thank you, Javi. We're glad to hear you're off to a strong start, and we're happy Fabio has made that experience a positive one. We look forward to continuing our partnership.
Trust worthy, they dont give false hopes, very clear and consistent
We had an amazing experience with quartile since day 1. With Fabio as our account rep everything went as expected. We've been wanting a handsoff Amazon ad efficiency for very long and spent hundreds of thousands in waste until we found them. Glad to be working with them.
Reply from Quartile2026-06-25
Thank you for the kind words. We're thrilled to hear the partnership has delivered the level of support and efficiency you were looking for. Fabio has done a fantastic job helping clients navigate Amazon ads, and we're grateful for the opportunity to be part of your growth journey.
Quartile has made onboarding our company very simple. The experience so far has been very professional and well managed, providing detailed explanations and guidance all the way through the process.
Reply from Quartile2026-06-25
Thank you, Glenn. A strong start is important, and we're pleased to hear the onboarding experience has been smooth. We appreciate your trust in our team and look forward to supporting your continued success.
We've had a very positive experience working with Quartile. Their client support team (especially Eric P) has been professional, responsive, and attentive throughout our partnership. They have consistently taken the time to understand our goals and have been accommodating to our requests, providing thoughtful recommendations and timely follow-up. The team is easy to work with, communicates clearly, and has been committed to helping us achieve the best possible results. We appreciate their partnership and the high level of service they continue to provide.
Reply from Quartile2026-06-17
Thank you for the kind words. Building a strong partnership starts with understanding each client's unique goals, so we're especially pleased to hear that approach has resonated with your team. We'll be sure to share your feedback with Eric, and we look forward to continuing to support your success in the months ahead.
A game changer I hope our competitors never discover.
Great experience! Eric and the team have done an amazing job in a short time period!
Thanks to Quartile, we just had the best days, weeks and month on Amazon, delivering both sales volume and efficiency.
Reply from Quartile2026-06-10
Thank you for the review, Robert. Hearing that you've achieved some of your strongest Amazon performance to date is exactly why we do what we do. Eric and the team have enjoyed working alongside you, and we're excited to keep finding new opportunities to build on this momentum.
Not only were these people costly and ineffective at promoting my products on Amazon but they refused to stop charging me when I terminated them.The absolute worst.
Reply from Quartile2026-06-04
We’re disappointed that the partnership did not achieve the outcome you were hoping for, Benjamin. Throughout our engagement, our team spent considerable time reviewing account performance and discussing the challenges impacting results, including the fact that your products had lost the Amazon Buy Box to another seller reselling your own products. We worked to explain how this was affecting visibility and performance through multiple conversations, including calls and email exchanges outside of normal business hours.
We also want to clarify that your account was terminated in accordance with the 30-day cancellation policy outlined in the agreement signed at the start of our partnership. As is our standard practice, we continued to provide services throughout the notice period, and billing remained active only for the contracted term.
While we regret that we were unable to align on the path forward, we appreciate the opportunity to work with your business and sincerely wish you success in the future.
Quartile (and specifically Gustavo) has been incredibly helpful in growing our business via ads on Amazon, as well as providing clear communication as to what is being done, and what needs to be done in the future.
Reply from Quartile2026-06-04
Thank you, Marco. It’s always rewarding to see a partnership translate into meaningful business growth. We’re glad Gustavo has been a trusted resource throughout the process, and we appreciate the opportunity to be part of your continued success.
Tailor made service to your needs, very responsive team and bi-monthly zoom updates. It takes a little time to get running but seems to reach goals within a reasonable timeframe.
Reply from Quartile2026-05-27
Thank you, Shawn. We appreciate the feedback and are glad the team’s responsiveness and collaborative approach have stood out. Building momentum can take time, so it’s great to hear the partnership is moving in the right direction.
If you are looking for a team that actually listens to your vision and delivers explosive results, look no further than Quartile. I’ve only been with them for a few months, and my company, B&KM Farms, is already doing almost 3X the volume we did last year. The growth is just insane.
It all started with Juliano Oestreich, my onboarding specialist. He was absolutely amazing and made the transition seamless. He really took the time to understand what I needed, showing the kind of flexibility you just don’t find with other agencies.
Now, I have a "long-term team" that I truly consider part of the B&KM family:
Leonardo Azevedo: He is remarkably good at his job, but more than that, he’s just so personable and friendly. It makes the work day so much better when you’re working with people who genuinely care.
Ligia Nemeth: A total go-getter and the best cheerleader you could ask for. Her energy is exactly what a growing business needs.
Adrienne Labes: A true professional through and through. She is so kind and keeps everything running at the highest level.
They are so communicative and knowledgeable, but most importantly—they actually deliver. If you want to see the proof, look up B&KM Farms on Amazon or our website bandkmfarms.com. The results speak for themselves. I can only imagine what we’re going to accomplish by the end of the year with this crew in my corner.
Thank you, Quartile, for taking my vision and running with it!
Reply from Quartile2026-05-27
Kiersten, this was incredibly meaningful for our team to read. The growth B&KM Farms has seen in such a short period is exciting, but what stands out most is hearing that you feel genuinely supported by the people behind the work. Juliano, Leonardo, Ligia, and Adrienne each bring something special to the partnership, and we’ll make sure they see your comments. Thank you for trusting us with your vision and we’re excited for what’s still ahead.
Our Technical Account Manager, Eric, did a great job throughout the whole introductory period in assisting with our advertising account. We saw strong results through his changes and implementations on Amazon - with focus on growth on year-over-year sales. We feel that Eric put us on the right path to continue growing over the next few months. Eric was communicative in meetings, answered all questions, and helped paint a clear picture on the changes to the account.
Reply from Quartile2026-05-27
Thank you for the kind words, Ryan. We’re glad Eric was able to provide clarity and strong support throughout the onboarding process while helping set the foundation for continued growth. We appreciate your feedback and look forward to building on the momentum ahead.
The team was super effective at helping our business grow and truly listened to our needs!
Reply from Quartile2026-06-04
Thank you for the review, Caleb. One of our priorities is building strategies around each client's unique goals, so it's great to hear you felt heard and supported. We appreciate the opportunity to be part of your growth and look forward to continuing the partnership.
While the reps and support were great, the overall performance of the account never really improved. Our spend increased significantly while we barely grew. Initially, we thought that it would take some time for the AI to learn our brand and find trends but after over a year, we still saw minimal improvement and canceled our contract.
Reply from Quartile2026-05-20
Thank you for the feedback, Tony. While we’re disappointed we weren’t able to deliver the level of growth you were hoping for, we do appreciate the acknowledgment of our team and support. We remain confident in the strength of our platform and strategy that has made us the No. 1 ranked retail media advertising platform, but we also recognize that results can vary based on brand, category, and market conditions. We value the time we worked together and wish you continued success moving forward.
Thank you, Julian. We're glad your onboarding experience got things off to a strong start. We appreciate your feedback and look forward to supporting your continued success.
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