Storage Plus

What Storage Plus does

Storage Plus (ストレージプラス) is a Japanese indoor self-storage (トランクルーム) operator operating a network of approximately 60+ facilities concentrated in Japan's four major metropolitan areas — Tokyo, Kanagawa, Sapporo, and Fukuoka. The brand traces its origins to 2006, inspired by American self-storage concepts, and was incorporated in 2015 as ストアハブ・ストレージプラス合同会社 (StorHub・StoragePLUS G.K.), a subsidiary of StoreHub Indigo Private Limited. The company serves urban residents and small businesses lacking sufficient in-home storage in space-constrained Japanese cities, as well as hobbyists, seasonal storage users, and corporate clients needing document archiving and inventory overflow.

The product portfolio is anchored by standardized indoor storage units (sizes 0.1 to 3.4+ tsubo) with the proprietary Airy Room (エアリールーム) climate-controlled design — a registered trademark combining ventilation, dehumidification, deodorization, and sterilization systems. Adjacent offerings include garage.storage, bicycle storage, and the co-located SALTO+LAUNDRY coin laundry brand, broadening the addressable use case beyond pure storage. The company emphasizes female-friendly design and convenience, layered with a partnership ecosystem spanning Seven-Eleven Japan (co-location), Times Car Mobility (car-sharing adjacency), Herts (moving services), and Toto Create.

The business model is primarily recurring monthly subscription rental, supplemented by a 5,500 yen transaction/processing fee and a roughly two-month security deposit. Pricing is per-unit with tiered unit sizes, and payment is being expanded to credit cards in April 2026. Real estate is acquired and developed in-house by a dedicated acquisition team rather than franchised, making the model asset-heavy but capital-efficient versus greenfield development. Membership in the Japan Rental Storage Space Promotion Council (公益社団法人 日本レンタル収納スペース振興協会) provides industry association standing and recommended-mark eligibility.

Name

Storage Plus

Legal name

ストアハブ・ストレージプラス合同会社

Website

https://storageplus.co.jp

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Storage Plus (ストレージプラス) is a Japanese indoor self-storage operator running 60+ climate-controlled facilities in Tokyo, Kanagawa, Sapporo, and Fukuoka, serving urban residents, hobbyists, and small businesses with its proprietary Airy Room (エアリールーム) design and adjacent garage, bike, and coin-laundry offerings under a monthly subscription model.

Ownership category

akta.pro rank

Product category

Self-Storage Services

NAICS

Lessors of Miniwarehouses and Self-Storage Units (531130)

SIC

Public Warehousing & Storage (4220)

akta.pro primary industry

Climate-Controlled Self-Storage (HSAKAGAA)

akta.pro secondary industries

Small-Space & Apartment Storage Systems (Non-Construction) (HSAFAHAJ), Standard/Non-Climate Self-Storage (HSAKAGAB), Garage, Basement, Attic & Utility Storage Systems (Non-Construction) (HSAFAHAC)

Keywords

• Self-storage rental
• Indoor storage units
• Personal storage service
• Trunk room rental
• Urban storage facility

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Marketing or Sales, Supply Chain

Revenue model

1. Monthly Storage Unit Rental: Core revenue from renting self-storage units to individuals and businesses on monthly contracts. Units range from 0.1 to 3.4+ tsubo. Billing is monthly via bank account deduction or credit card. Minimum contract is 1 month, with auto-renewal.
2. Coin Laundry (Co-located): Some locations feature co-located coin laundries (SALTO+LAUNDRY / SALTO+COINLAUNDRY brand), providing additional revenue streams and convenience for storage customers.
3. Key and Administrative Fees: One-time fees including contract processing fee (5,500 yen), key reissuance (20,000 yen for lost keys), additional key copies (4,400 yen), and room change/addition fees (5,500 yen per transaction).

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Storage Plus rents indoor self-storage rooms in 60+ buildings across Tokyo, Kanagawa, Sapporo, and Fukuoka, with unit sizes ranging from 0.1 to 3.4+ tsubo for both individuals and businesses. The rooms use the proprietary Airy Room design, which combines ventilation, deodorization, air conditioning, humidity control, and ALCS-grade locks to provide a clean, indoor alternative to traditional container storage. Specialized variants (futon storage, closet-style, bookshelf-style, vehicle storage) and ancillary amenities (co-located coin laundry, convenience stores, car-sharing) are bundled into the rental offering.

Product overview

ストレージプラスは、トランクルーム・レンタル収納スペースの専門ブランド。主力製品は通常収納室と特許取得済みのエアリールーム（AiryRoom®）の2種類で、部屋形状に応じてお布団らくらく収納、クローゼット収納、本棚収納などの Specialized Sub-products を展開。トランクルームと并行して、江ノ島店・港南台店・川崎中丸子店・府中北店・小金井前原町店・南円山店の一部店舗では、SALTO+LAUNDRYコインランドリーサービスも同居型で提供している。南千住店にはガレージ.storageも設置されており、バイク収納スペースは複数の店舗でサービスを提供している。

Differentiator

Problem solved

Functional benefit

Products and services

• Airy Room Storage (Standard) Indoor self-storage rooms built to the proprietary Airy Room specification, combining ventilation, deodorization, air conditioning, humidity control, and ALCS-grade locks. Available in sizes from 0.1 to 3.4+ tsubo across 60+ locations in Tokyo, Kanagawa, Sapporo, and Fukuoka, for individual and corporate customers.
• Futon Storage Room (布団をしまう) Specialized Airy Room configured for storage of futons, with shelving suited to bulky bedding items. Targeted at residential customers rotating seasonal bedding.
• Closet-Style Storage Room (クローゼット感覚で使える) Indoor storage room designed to feel like a walk-in closet, marketed primarily at female customers and small apartment dwellers for clothing and personal items.
• Bookshelf-Style Storage Room (本棚感覚で使える) Indoor storage room configured with shelving suited to books, records, and document boxes, targeting collectors and document-heavy households.
• Vehicle Storage (車庫) Enclosed indoor unit sized for vehicle storage, providing a clean, secure alternative to outdoor garages for cars, motorcycles, and bicycles.
• garage.storage (ガレストレージ) Companion outdoor container-style self-storage brand operated by the same company, offered for customers who prefer or require non-indoor garage-style units. Storage Plus rooms are bundled together with garage.storage units in showroom tours.

Named customers4 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Times Car Mobility (タイムズモビリティ／カーシェアリングのタイムズカー)coreGTM or Marketing PartnerCar sharing partnership offering exclusive benefits to Storage Plus customers. Available at locations such as 文京関口 store, where a dedicated car sharing parking space is provided within the facility. Customers signing up through Storage Plus receive special membership benefits.
• Seven-Eleven Japan (セブン-イレブン・ジャパン)coreStrategic or Co-development PartnerCo-location partnership where Seven-Eleven stores are integrated into Storage Plus facilities. Notable at 綱島 store (1st floor) and 溝の口 store (2nd floor of Seven-Eleven building). This arrangement enhances security (24-hour presence), provides convenience for customers, and enables delivery services. Featured on TV Tokyo's ワールドビジネスサテライト as an innovative co-location model.
• Japan Rental Storage Space Promotion Council (レンタル収納スペース推進協議会)minorOthersIndustry association for rental storage space services in Japan. Storage Plus is a member (理事会社/director company). The council provides consumer information, awards recommendation marks to safe facilities, and develops model contract terms to promote service quality and consumer protection.
• Herts Co. (株式会社ハーツ) — Rentora ServiceminorGTM or Marketing PartnerTransportation partnership providing moving services (レントラ便) with 5% discount for Storage Plus customers. Service covers Kanto and Hokkaido regions. Driver-only service with reduced rates.
• Toto Create (東都クリエイティブ) — Rakuraku Transport ServiceminorGTM or Marketing PartnerFull-service moving partnership (らくらく運送サービス) offering 10% discount to Storage Plus customers. Staff handles loading and unloading. Also provides disposal/purchase services for unwanted items.

Scale indicators3 records

Recent moves1 record

Expansion highlights7 records

Broad incumbents

• Extra Space Storage: Major US self-storage REIT and operator with global footprint. Same core product (rented storage units, monthly subscription), useful as a global scaling reference for Storage Plus' growth trajectory.
• CubeSmart: US-listed self-storage REIT operating ~1,300 facilities nationally. Provides a public-market reference comparable for the recurring-revenue storage rental model Storage Plus operates.
• Public Storage: The world's largest self-storage REIT with ~3,500 US/European facilities. Comparable business model (monthly subscription self-storage units) at massive scale — a relevant reference comparable for unit economics and valuation.

Direct peers

• Quraz (キュラーズ): Tokyo/Kanagawa-focused indoor self-storage operator emphasizing clean, climate-controlled, building-based facilities for urban residents — highly comparable in product positioning and geography to Storage Plus.
• Kase no Trunk Room (加瀬のトランクルーム): Operated by Kase Soko with national coverage, offering indoor and container self-storage units on a similar monthly subscription model — directly comparable customer base and pricing architecture.
• Tajima Soko (田島倉庫): Long-standing Japanese warehouse operator that has expanded into consumer self-storage, offering trunk-room-style units competing with Storage Plus in major urban markets.
• Hello Storage (ハローストレージ): Operated by AreaQuest, this is Japan's widest-distribution self-storage franchise, offering container-based and indoor units across major cities. Comparable direct competitor to Storage Plus on rental-storage core offering.
• Space Plus (スペースプラス): One of Japan's largest building-based self-storage operators, with nationwide urban coverage and a similar mid-to-large-unit rental model. Direct competitor to Storage Plus in Tokyo's metro self-storage market.
• Minato (ミナト) / Yellow Hat Self-Storage: Operates Yellow Hat-affiliated self-storage across Japan including climate-controlled indoor units; competes with Storage Plus in the Kanto metro area on similar indoor, 24/7 access product.
• Private Box (プライベートボックス): Indoor building-based self-storage operator with comparable unit-size tiers and security/air-conditioning emphasis. Competes for the same urban personal-use customer that Storage Plus targets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/storageplustr

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Storage Plus