8 October 2026International edition
Vol. I · No.
8 October 2026
AI in Fashion
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Denim and casualwear

Warehouse & Co

Japan

Warehouse & Co is a Japanese reproduction denim brand counted among the so-called Osaka 5 makers. A US retailer names twin brothers Kenji and Kenichi Shiotani as its founders. Its founding year and corporate details were not confirmed in the sources reviewed.

Facts
CountryJapan
FoundersKenji and Kenichi Shiotani (per Blue Owl)
GroupOsaka 5 denim makers
SegmentDenim and casualwear
SpecialismVintage reproduction denim
Segment
Premium
Categories
DenimMenswear
Sales channels
WholesaleE-commerce

What is Warehouse & Co?

Warehouse & Co is a Japanese denim and workwear brand focused on reproductions of vintage American garments. Blue Owl Workshop, a retailer in Seattle, describes it as the fifth member of the legendary Osaka 5, the group of Osaka denim makers that shaped the Japanese reproduction scene.

History

According to Blue Owl, the brand was started by the twin brothers Kenji and Kenichi Shiotani, who had previously worked for Fullcount and Evisu. The retailer page does not give a founding year, and the sources reviewed do not state where the company is headquartered, so those details are left out.

Positioning and distribution

Warehouse is sold to international customers mainly through specialist denim and heritage retailers such as Blue Owl. Information about its own stores, ownership and product range was not available from the accessible sources, and it is not speculated on here.

Why it matters

Warehouse & Co is cited alongside Evisu and Fullcount as one of the Osaka makers behind Japan's reputation for detailed, faithful vintage denim reproduction. Because the available source is a single retailer page, this profile is deliberately limited to what it states, and readers should consult the brand directly for current product, ownership and company information.

Frequently asked questions

Who founded Warehouse & Co?

A US retailer, Blue Owl Workshop, names twin brothers Kenji and Kenichi Shiotani as the founders. They had previously worked for Fullcount and Evisu.

Where is Warehouse & Co from?

Warehouse & Co is a Japanese brand described as the fifth member of the Osaka 5 group of denim makers.

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