Case studies

Results from brands we've grown.

How we operate across marketplace and DTC, what we changed, what moved, and the metrics that matter.

Sanzo logo - Amazon case study by High Voltage GP

Amazon · 9 months

Sanzo

Scaling an Asian-inspired sparkling water brand to 3.2x on Amazon.

Took ownership of the full Seller Central operation. Rebuilt the catalog, launched a Sponsored Brands strategy, and locked in inventory planning to prevent stockouts during seasonal spikes.

3.2x
Revenue growth YoY
−38%
TACoS reduction
98%
Listing optimization score
0
Stockouts during peak
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Kerns logo - Amazon case study by High Voltage GP

Amazon · 12 months

Kerns

From zero to $1M Amazon revenue in 12 months.

Ran the Amazon launch end to end: catalog setup, listing optimization, paid advertising, and operational workflows. Also enhanced the marketing tech stack for email flows to support retention.

$0→$1M
First-year Amazon revenue
4.1
Blended ROAS
18%
TACoS at scale
7x
Ad spend increase held
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Jumex logo - Amazon case study by High Voltage GP

Amazon · 12 weeks

Jumex

1,400+ ASIN catalog rescue and account health turnaround.

Took on a sprawling, partially suppressed catalog. Merged variations, ran flat-file uploads, fixed compliance flags, and stood up monitoring.

1,400+
ASINs corrected
−71%
Suppressed listings
+58%
Buy Box win rate
12 wks
Time to clean catalog
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New Star Food Service logo - Amazon case study by High Voltage GP

Amazon · 6 months

New Star Food Service

31% sales growth in 6 months, scaling monthly revenue from $1.8M to $2.5M.

We have been deeply involved in building this brand from the ground up. Over the last six months we scaled monthly sales from approximately $1.8M to $2.5M, adding roughly $3.5M in incremental annual revenue.

31%
Monthly sales growth
$1.8M→$2.5M
Monthly revenue
+$3.5M
Incremental annual revenue
6 mo
Time to results
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