In a digital world where most audience targeting is getting noisier and less reliable by the day, first-party data has become an increasingly rare and valuable signal.
With third-party cookies gone, AI assistants intercepting more of the shopping journey, and attention scattered across more channels than ever, advertisers need strong targeting data.
The data that retailers and commerce platforms own has become disproportionately more valuable – precisely because it is grounded in reality. First-party data is not modelled, inferred, or proxied. It represents people who actually bought things, from actual brands and retailers, in the real world, recently. That is a powerful signal at a time when power is in short supply.
The challenge most data owners still face is not whether their data is valuable, but how to make it visible and securely accessible to the advertisers who want it.
Flow Platform built the data clean room to solve that problem. As the key that unlocks a larger bridge: connecting businesses who have high-quality data worth sharing with brands and advertisers who are actively looking for the audiences that data can power.
What the Flow Data Clean Room actually does
Flow’s data clean room is a secure, fully encrypted environment where you can upload customer data directly from your CRM or systems and securely build the custom audience segments you want to take to market.
You control what data you bring in, how it gets combined into segments, and which signals are used to qualify each audience. Flow’s technology provides the tools and the privacy infrastructure. You provide the strategic input that makes your data unique.
The results are hashed, marketable segments built from your data
– the kind of verified, purchase-based audiences that advertisers are actively seeking out.
These segments can be directly pushed to the Flow Audience Marketplace where they can be discovered and booked by brands, marketers and advertisers.
▶️ See how it works:
What it unlocks on the Flow Audience Marketplace
Every audience listed on the Flow Audience Marketplace carries a tier rating: Tier I, Tier II or Tier III. The tier reflects the quality and specificity of the data behind each segment. It is the signal advertisers use to understand what they are buying.
The clean room is how partners qualify their data for the higher tiers of that system.
- Tier I is reserved for verified, PII-matched first-party data. Purchase-confirmed. Identity-authenticated. The kind of high-precision audience signal that only comes from owning the direct customer relationship. Tier I carries the strongest advertiser demand and commands the highest revenue on the marketplace.
- Tier II blends behavioural signals with stronger customer identifiers and more specific segmentation. Better matched to mid-funnel objectives, with higher advertiser demand to match.
- Tier III audiences are built from broad behavioural and web-traffic signals. Wide reach, strong for top-of-funnel brand campaigns. A solid starting point and there is steady advertiser demand at this level.
Partners who bring rich, consented first-party data into the clean room create the conditions for Tier I audiences. Partners building from behavioural data can still activate strong Tier II and Tier III segments. The clean room is what helps every data owner reach the top of the tier system. Where you start and how high you go depends on the strategic choices you make about which data to bring in and how to segment it.
Why brands and advertisers are chasing this
Flow’s tier system makes data quality legible to advertisers. When a brand sees a Tier I or Tier II audience on the marketplace, they understand what is behind it: verified, commercially-sourced signals from a business with a real customer relationship. That clarity drives better campaign decisions, better results, and more repeat bookings from advertisers who want to come back.
The clean room is what puts data owners in a position to capture that demand. It transforms raw data into a verified, market-ready asset. The marketplace is where that asset then connects to paying advertisers. For data owners, that is where the revenue opportunity lies: one campaign is a proof of concept; the repeat business that follows is the outcome that actually grows your bottom line.
The revenue picture
Flow Platform’s data partners have seen ad revenue growth as high as 1,000% within their first four months on the Audience Marketplace. Not because they added more technology or hired a sales team. Because they made their most valuable first-party data available to advertisers who were actively looking for it.
The clean room makes that connection possible with the highest level of data quality and control. Partners like Bash, Hirsch’s and Hellopeter are already using it to build verified first-party audiences that advertisers are buying.
If you own rich customer data and aren’t yet using the clean room, you’re leaving your most valuable asset off a marketplace that already has demand for it.
Better audiences get more attention.
More attention drives more revenue.
Where to start
Flow’s platform brings you the demand: the advertiser matching, the campaign activation and even the insights to advance your offering.
The data clean room handles the privacy-safe organisation of your data into market-ready segments.
Your role is to bring the strategic lens – to choose which data to upload, how to combine it into meaningful audiences, and which campaigns to make it available for.
GET STARTED TODAY 🚀
Visit Flow to find out what your data could be worth or reach out to the Flow team directly.
Frequently asked questions
1. Is my data secure in the clean room?
Absolutely. Flow’s data clean room uses state-of-the-art encryption and security protocols to ensure your data is always protected. Your raw data is never exposed to external parties and remains under your control at all times.
2. What if I need help using the clean room?
Flow also offers comprehensive support to all our data partners. Our team is available to help with data ingestion, segment building, marketplace listing, and any other questions you may have. We also provide detailed documentation and training resources to ensure you can use the clean room effectively.
3. What kind of data can I use in the clean room?
You can upload any first-party customer data you have, such as purchase history, customer profiles, behavioural data, and more. Flow’s team can work with you to determine which data sets will be most valuable for building high-performing audience segments.
4. How do I get my data segmented?
Flow’s clean room makes it easy for you to safely get your data categorised, segmented and packaged into campaign-ready audiences without exposing raw customer data. From there, your audiences are live on the marketplace and available for advertisers to plan and activate against.
5. Can Flow's Clean Room help me generate more revenue from my data?
Yes, Flow’s Data Clean Room is designed to securely verify your rich first-party data, qualifying it for Marketplace audience tiers. By making your audience value clearer to buyers, tiering helps drive more demand, more bookings and more revenue from data you already own – with data partners seeing ad revenue grow by as much as 1,000% within their first four months of using the Flow Platform. Learn more
