Find and compare the best retail & shopper marketing agencies in New York, New York. Part of Advertising. All vetted with real client reviews.

In 2008, performance marketing was becoming increasingly fragmented. Ad networks were taking credit for conversions they didn’t fully drive, and most agencies were optimizing media against network-reported numbers and calling it performance. We didn’t trust those numbers. So we created our own measurement layer. What began as internal infrastructure evolved into Atrilyx — built on patented attribution technology, powered by Ai that connects channels, devices, and conversions into one reconciled source of truth. Every media decision we make runs through it. Every client engagement benefits from it. Nearly two decades and more than $1B in managed media decisions later, the problem still exists. The networks still grade their own homework. We still don’t let them.

At WITHIN, we pride ourselves on our unique approach to digital marketing, what we call 'Performance Branding'. This methodology merges the strengths of brand marketing with the result-driven nature of performance marketing, enabling us to create and execute strategies that not only elevate brand presence but also ensure profitable growth for our partners. At the core of Performance Branding is our commitment to aligning marketing goals with actual business objectives. We believe that the secret to achieving this alignment lies in breaking down the silos that traditionally exist within marketing organizations. With our model, media buying communicates with creative teams, performance teams work closely with brand teams, and all marketing channels are viewed through a unified lens.

Audience Development & Customer Intelligence Agency for Retail & Ecommerce Companies generating $10M–$100M in revenue.
Most brands treat their entire audience the same. Batch-and-blast campaigns. Identical flows for a first-time buyer and a fifth-time buyer. Segmentation that is under-segmented. Paid media eroding margins. DAS exists to fix that. We're a customer intelligence agency for brands in the $15M–$100M range. Every engagement starts with your data—purchase frequency, RFM segmentation, cohort-level LTV, and contribution margin analysis. We identify which customers are compounding value and which segments are eroding it. From there, we build the retention and acquisition architecture: lifecycle flows calibrated to actual buying behavior, campaign strategies segmented by customer value, acquisition strategies that find more of your best customers, while doing so with increased efficiency, and deploy frameworks your team owns long after we're gone. Clients include Koia, Leesa, GT's Living Foods, Create Wellness, and Hydrant. Average engagement lasts 4+ years. We take on 10-15 retainer clients per year—a deliberate constraint that keeps our team of senior operators embedded in your business, not spread across thirty accounts. If your business metrics have plateaued despite good execution, the problem probably isn't creative. It's who you're sending to and the systems that enable the marketing and advertising functions.