Close
Newsletter Sign Up

Newsletter Sign Up

Close

Thank you!
Just one more thing before you go...

When your invite is ready, we'll email you to create your account, but don't want our note to get lost in your overstuffed inbox.
Customize the subject of your email so you know what to look for:
Checked Unchecked
I'm drowning in email!
Checked Unchecked
Your lockrMail invite!
Checked Unchecked
Knock! Knock! It's your inbox genie
Checked Unchecked
Are you ready for inboxzero status?
Checked Unchecked
Create your own**:
**Bonus points for the funniest answer! We may even bump up your invite :)
Thank you!
You will receive email confirmation shortly.
Thanks for your continued interest in lockrMail!
We already have you on our waitlist. We're extremely hard at work building you the best way to protect and organize your inbox.
We'll be releasing more invites for early-access soon – can't wait to have you onboard!

Viant Buys Lockr to Scale its ID Solutions

Published March 16, 2025

Maybe chill, everyone? Sheesh. M&A in adtech is moving so quickly that new deals are announced before we even finish covering the last one.

Anyway, that was the case with Viant’s acquisition of Lockr, which was announced right before the DSP’s earnings call on Monday (the earnings were pretty good, by the way). The deal size is likely modest, but the impact may be undervalued.

Why This Matters:
First, what exactly is Lockr? It’s really a platform that helps publishers easily connect their first-party data to multiple alternative IDs, making that data actually usable for programmatic advertising.

According to Viant’s CEO Tim Vanderhook on Monday’s earnings call: “On a one for one basis, each integration requires extensive engineering resources, a deployment of software code, and ongoing maintenance. But with Lockr managing the integrations, publishers can integrate with Lockr just one time and then seamlessly turn on Locker’s partner integrations at will with no additional integrations necessary.”

With this tech, publishers can simplify and strengthen how they monetize their audience data/inventory as cookies disappear and privacy laws evolve. Lockr helps keep their data available as a signal in the bid stream, essentially. The acquisition is also expected to accelerate adoption of Viant’s Household ID and IRIS_ID.

Household ID is a deterministic ID. Unlike cookies or hashed email-based IDs (e.g., UID2), it doesn’t rely on logins. Instead, it uses geo-enabled devices and ISP data to create persistent, scalable identity signals for ad targeting and measurement.

IRIS_ID is a content ID brought over from Viant’s acquisition of IRIS TV. It enables contextual and brand suitability targeting and measurement for CTV, and is based on video content, not user data.

With Lockr now part of Viant’s portfolio, Viant can scale the connection of Household ID and IRIS_ID to publisher data, making them more accessible and, ultimately, more valuable for advertisers. Viant also promises to keep Lockr open to the broader ecosystem, including other alternative IDs providers (limiting this would likely hurt Lockr’s scale and, in turn, stall the growth of Viant’s IDs).

Per Chris Vanderhook on the earnings call, “I think [Lockr is] a big unlock for publishers, and it’s going to be great for the whole open Internet. It is going to accelerate Household ID. It will also accelerate IRIS_ID in the bid stream, but it’s going to be really big for the whole open Internet.”

Experts React:
When we asked Keith Petri, Lockr’s founder, about the deal, he said: “While SSPs are increasingly activating against their own supply and DSPs—like TTD via OpenPath—are going direct to publishers to optimize efficiency and data access, Lockr simplifies this technical hurdle for the greater market.”

Our Take:
The Viant-Lockr deal kind of reminds us of the Zeta Global-LiveIntent deal, in that it highlights the growing M&A demand for adtech that supports addressability, whether through first-party data enrichment or scalable ID tech/solutions. Yesterday’s big Lotame deal with Publicis is similar, in that way.

Of course, we’re not even done with Q1 yet so we’re sure we’ll see more similar deals in the near future. Not today, though, please. We’re tired.

View the original article in AdTechRadar.

lockr Team

lockr is a company of innovators, rethinking the way the Internet operates with respect to consumer data.