QuartileReviews of quartile.com

Pedro is optimistic, eager to help/please, and descriptive with what he's doing. Also, so far we've seen favorable trends, helping build confidence that we're heading the right direction.

The professionalism and cooperativeness are really supportive

There was an immediate uptick in sales and clicks. Communication is excellent. We really feel like we have a trusted partner who wants to see our sales grow. Very clear data points and charts show us exactly what's going on and the progress being made. It has been a great choice for our Amazon Store.

Pedro has been great with onboarding us!

I've been working with Quartile for managing our paid advertising across Google, Facebook, Instagram, and Bing, and I can't recommend them highly enough. From day one, they've consistently delivered on the ROAS targets we set, often exceeding them while keeping everything efficient and profitable. What stands out most is how incredibly responsive and proactive their team is. My account manager is always on top of things—quick to reply (often within hours), transparent with updates, and genuinely invested in our success. They don't just set it and forget it; they're constantly monitoring, optimizing, and suggesting smart adjustments based on real performance data. Whether it's tweaking bids, refining audiences, or scaling winning campaigns, they handle it all with expertise and precision. Thanks to Quartile, my life has way less stress when it comes to ads. I used to spend hours every week micromanaging campaigns and worrying about wasted spend, but now I can trust that everything is in great hands. They free me up to focus on the bigger picture of growing the business, knowing our ad performance is being maximized. If you're looking for a partner that truly excels at paid media management and delivers results without the headaches, Quartile is the real deal. 5 stars all the way

We’ve had a fantastic experience with Quartile as our Amazon Ads agency. The onboarding was smooth and well-managed, and the team made us feel comfortable and confident from day one. A special mention to Gustavo and Gabriel — they’ve been instrumental throughout, not just in getting us set up properly, but in driving the promised efficiencies and improvements within our account. Communication has been clear, proactive, and focused on outcomes. Quartile is a fantastic tool backed by a strong team, and we’d definitely recommend it to any brand looking to improve performance and scale Amazon Ads more efficiently.

Smooth process of work and very efficient. Their employees are a pleasure to work with, specifically Gustavo and Gabriel.

Superb company to work with! Laura at Quartile is fantastic, always attentive and always bringing ideas to grow our account. Would recommend! :)