Campaign lift

Prove what your campaign actually added

Most place based media is impossible to measure after the fact. porterzip builds a holdout into the plan from the start, so you get a real number for what your campaign added.

See your growth map
targeting-master_2026Q2.csv 42 markets
# zip city state score vs_expected
1 97212 Portland OR 99 42.11×
2 55414 Minneapolis MN 99 12.43×
3 97006 Beaverton OR 99 5.22×
4 78731 Austin TX 96 3.93×
… 38 more markets
Hold back

A holdout, built in from the start

Before the campaign runs, we set aside a matched set of markets to leave untouched. They become the honest comparison for everything you do target.

Spring EDDM drop
38 targeted markets vs a randomized holdout
+0% incremental lift
90% CI 20–36%, targeted minus held-back
Targeted Held back
+28% launch before after
Measure

Targeted growth against the holdout

After the campaign we compare how much your targeted markets grew against the ones you held back, on your own customer counts. The gap is the lift.

Untapped markets that match your winners
80304 Boulder, CO 96
02143 Somerville, MA 94
53703 Madison, WI 91
97202 Portland, OR 89
84103 Salt Lake City, UT 87
Ranked by demographic resemblance. You have zero customers here today.
Honest

A number, with its confidence

We report the lift with honest confidence, not a headline you cannot stand behind. If a campaign did not move a market, you will see that too.

Common questions

What is a geographic holdout?

A matched set of markets you deliberately leave out of the campaign. Comparing your targeted markets against them shows what the campaign added, separate from everything else going on.

Which channels can you measure?

Any place based channel, like direct mail, EDDM, CTV, DOOH and local social, because they can all be run by geography.

What if the campaign did not work?

You will see that. We report the real result with its confidence, whether it is up, flat or unclear. That honesty is the point.

Measure your next campaign

Send us your customer list. The map and the first proof come back within days.

See your growth map