Case studies

Amazon agency case studies with real numbers. They come from the brands, not from us.

Every result below states what was measured, over what period, and against what baseline. Where a brand asked to stay anonymous, the numbers are still theirs — only the name is missing.

No projections. Nothing here is modelled — it either happened or it isn’t on this page.

100+
Active clients
3,000
Listings optimized
Thousands
Of TikTok videos produced
The work
Hover to pause
Collagen brand listing rebuild hero image
Collagen rebuild — hero image
Nordic Lifting Amazon listing image set
Nordic Lifting — listing set
Packaged meals listing image stack
Packaged meals — image stack
Sports nutrition A+ Content module
Sports nutrition — A+ module
Ops tool view of the measurement baseline
Ops Tool — measurement baseline
Weekly scorecard, client view
Weekly scorecard — client view
Selected work

What changed, and what it was worth.

Filter by channel.

Collagen brand case study cover
Creative · Amazon
+38%

conversion rate, and $42K added per month

Collagen brand lifts conversion 38% without touching ad spend

A premium collagen brand was carrying high acquisition costs and low conversion. We rebuilt the creative and marketplace strategy rather than buying more traffic — the media budget stayed where it was.

Read the case study →
Nordic Lifting case study cover
Amazon
Advertising rebuilt around AI

How Nordic Lifting revived Amazon ad performance through AI

An established fitness equipment brand had plateaued despite strong brand history. We rebuilt the advertising structure around AI-assisted monitoring and senior review.

Read the case study →
Packaged meals case study cover
Creative
+95%

Packaged meals brand nearly doubles click-through on a rebuilt listing

“We saw an immediate jump in CTR. Customers finally get the value of our premium product through these images.” Measured on the rebuilt listing against its own prior baseline.

See the creative work →
Sports nutrition case study cover
Creative
+85%

Sports nutrition brand lifts conversion on a full image rebuild

Same product, same price, same traffic. The only variable that changed was the creative — hero image, image stack and A+ Content rebuilt together.

See the creative work →
In progress — case study visual
In progress
Next up

TikTok Shop and staffing case studies are being written

We publish results once the brand has agreed the numbers and the period they cover. If you want to see something specific before it’s public, ask on a call and we’ll walk you through it.

Ask for the detail →
How we measure

Most agency case studies are unfalsifiable. These aren't.

A percentage with no baseline, no period and no mention of what else changed is marketing, not evidence. Here are the rules we hold ourselves to on this page.

  • Baseline stated. Every figure is measured against the same account’s prior period, not against a category average or a competitor.
  • Period stated. A lift over 30 days and a lift over 12 months are different claims, so we say which.
  • Other variables named. Where ad spend, price or seasonality also moved, we say so. Where they didn’t, we say that too — it’s usually the more interesting fact.
  • No projections. Nothing on this page is modelled or annualised from a short window.
  • Client-approved. Numbers are published only once the brand has confirmed them. Some brands prefer to stay anonymous, so the name is withheld rather than the result inflated.
  • Losses exist. Not every rebuild wins. Split-test history in your dashboard shows the tests that lost as well as the ones that worked.
Before any of this applies to you

Results start with the same 72 hours.

Every engagement on this page began with an audit. It’s free, it takes three days, and you keep it whether or not you hire us.

01
Hours 0–72

Audit

The most important bottlenecks, risks and opportunities across listings, advertising, content and inventory — with the three moves we’d make first.

02
Day 5

Roadmap

Findings become a prioritised plan with owners, dependencies and the outcomes we expect from each move.

03
Day 7

Live

Operator named, pod assembled, reporting open. Everything after this point is measured against the baseline we captured in the audit.

One rebuild

Drag it. Same product, same price, same traffic.

The packaged-meals listing that nearly doubled click-through. The only variable that changed was the creative — hero image, image stack and A+ Content rebuilt together, measured against the listing’s own prior baseline.

+95% CTRRebuilt listing vs its own prior period
Ad spend unchangedNo budget increase over the window
Before — the original listing image
After — the Engin8 rebuild
BeforeEngin8
FAQ

About these results.

Anything else, email success@engin8.io.

Why are some brands anonymous?

Because they asked to be. Many brands treat marketplace performance as competitive information and would rather their category rivals not know who runs their channel. We would rather publish a real number without a name than a named story with a softened number.

Are these results typical?

No, and no agency’s published case studies are. These are selected examples where the work produced a clear, measurable change. What they demonstrate is what the approach can do on a catalog where there was real headroom — the audit tells you whether yours has that headroom before you commit.

Can I speak to a reference?

Yes, at the right stage. We ask permission before connecting anyone, so references are arranged during a live conversation rather than listed on the site.

Why don't you show more case studies?

Because each one needs client approval on the numbers and the period they cover, which takes longer than writing them. More are in progress. If you want to see work in a specific category before it’s published, ask on a call.

How long before we'd see results?

It depends on what’s broken. Operational fixes — suppressions, stranded inventory, wasted search terms — show up in weeks. Creative rebuilds need a test cycle to prove out. Ranking and catalog work compounds over months. The roadmap you get on day five sequences them so the fast wins fund the patience.

See what the gap looks like on your account.

Free 72-hour audit. The three highest-leverage moves on your catalog, with the baseline we’d measure against. Yours whether or not you hire us.