reach verified shoppers. Prove What Works.
Surfside replaces your vendor stack with one platform. That means less leakage, less guesswork, lower cost. Build audiences from real transactions, run campaigns across all channels, and measure every result against an actual sale.

Local Shoppers.
National Scale.
Surfside runs on transactions from thousands of independent and regional retailers across convenience, grocery, beverage alcohol, cannabis, and more. That data lets you activate high-intent audiences when they buy, optimize by store, and drive national impact.
31M+
Transactions per month
8,000+
Retailers
$30B+
Annual transactions
25K+
Attributes per shopper
Outcomes Worth Spending Against.
build Audiences from Real actions.
Most adtech audiences are modeled. Surfside builds yours from what shoppers actually do.

Custom audiences
Built from your CRM, loyalty data, and site behavior.
Purchase-based
Segmented by recency, frequency, SKU, and basket.
Location-based
Built from real-world store visits and proximity signals.
Action-based
Updates in real time as shopper behavior changes
Measurement You Can Defend.
Every campaign measured against real sales, in real time. Pick your attribution window, set your methodology, and prove every result.

Sales & outcomes
Revenue, ROAS, foot traffic, and conversions.
Attribution
Online and in-store, tied to lifetime value.
Incrementality testing
Matched-control holdouts to prove true lift.
Real-time dashboards
Granular by SKU, store, geography, audience.
Real campaigns.
Real results.
Lift in sales among exposed shoppers
Return on ad spend
Market share gains
FAQ
We connect directly to retailer POS and ecommerce systems, CRMs, and loyalty programs across our network. We also track shopper behavior across retailer websites and ecommerce platforms, and collect location data and additional user-level attributes. Together, these sources build complete shopper profiles covering purchase behavior, demographics, and visitation patterns.
Verified, not modeled. Every audience and performance metric is built from actual transaction data captured directly from retailer systems. That means you’re targeting real in-market shoppers and measuring outcomes against confirmed purchases, including SKU-level data, revenue, and incrementality.
10,000+ retailers across the U.S., with new ones onboarded daily.
We connect every media exposure directly to verified transaction data across POS and ecommerce systems. When a shopper sees your ad and makes a purchase, we trace that back through the actual transaction record. You can measure revenue, units sold, ROAS, and incremental lift at the SKU level.
Yes. We run true holdout testing using control and exposed groups, so you can measure the actual lift your campaign drove in sales and conversions. You choose the attribution model: first-touch, last-touch, or multi-touch, with full reporting on new-to-brand customers, revenue impact, and market share.
Put your spend where it performs.
We’ll show you the data, the platform, and what real campaigns drive.






