// SP
Case studies

Proof over promises.
Numbers, not narratives.

Anonymized engagements showing how disciplined campaign architecture lowered ACoS, held CPCs flat, and grew revenue without buying unprofitable clicks.

FEATURED CASEBEVERAGE · 8 MONTHS

Northwave doubled revenue
and halved their TACoS.

Inherited a sprawling 1,400-keyword campaign with 22% TACoS. Rebuilt the architecture around margin-tier products. Eight months later: $4.8M run-rate at 9.4% TACoS.

+128%
Revenue
-48%
TACoS
4.82×
RoAS
REVENUE · 8MO
$2.1M → $4.8M
// 02
More results

Every engagement starts messy.
We bring the structure.

SUPPLEMENTS

Supplement Brand Recovery

Inherited a fragmented campaign map bleeding spend on low-intent terms. Rebuilt it into a margin-tiered, full-funnel structure in 9 weeks.

-21% ACoS+34% ad-attributed salesTACoS 19% → 13%
HOME GOODS

Home Goods Expansion

Scaled exact-match winners and tuned placement multipliers to grow revenue without buying unprofitable clicks.

+41% qualified traffic+26% blended revenue12-week scaling runway
PRIVATE LABEL

Private Label Relaunch

Phased relaunch pacing, listing cleanup, and defensive branded coverage held rank while CPCs stayed flat.

Top-10 rank restored+31% CVRFlat CPC trend
// 03
Client voices

What operators say.

"They run our Amazon channel like in-house operators with skin in the game. TACoS dropped from 22% to 9.4%, and profit followed."

MR
Maya Reyes

"We replaced a six-person agency and an in-house manager with Spenzio. Reporting got sharper. Contribution margin got better."

JT
Joel Tanaka

"First agency I've worked with that talked about contribution margin before I had to bring it up. The math is always on the table."

PS
Priya Shah
SPENZIO MARGIN PROMISE

See where your account stands.

The 47-point audit maps your ad waste, ranking gaps, and margin leaks in 7 days. No commitment, no sales call.