AdvertisingOS™

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.

The Retail Majority

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.

Acquire New-To-Brand Customers

Reach buyers who've never purchased your brand. Verify every new customer with transaction data.

Drive Incremental Sales and ROAS

Measure every campaign against real revenue. Run holdout tests to isolate true incremental impact.

Convert in-store and Online

Tie digital exposure to in-store and online sell-through. See exactly what converted, where, and when.

Grow Sales Velocity and Market Share

Move more units per shopper, per store, per week. Track share gains by category, region, and retailer.

Reactivate and Convert Lapsed Shoppers

Identify shoppers who stopped buying and reach them with the right offer. Measure if they return.

Audience targeting

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

closed-loop Measurement

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.

28%

Lift in sales among exposed shoppers

6-8x

Return on ad spend

2-5pp

Market share gains

FAQ

Where does Surfside get its data?

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.

Is the data real or modeled?

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.

How many retailers are in your network?

10,000+ retailers across the U.S., with new ones onboarded daily.

How do you tie ads back to sales?

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.

Can I prove incrementality?

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.