Summary
Sumally Inc. is a Tokyo-based private company operating Sumally Pocket, a Japan-domestic subscription parcel-storage and retrieval service serving individual consumers and enterprise customers with box-based, photo-catalogued storage starting at ¥330 per box per month.
- Company typePrivate
- Founded2010
- HeadquartersTokyo, Japan
- Headcount1–10
- GTM typeB2B and B2C
- OfferingServices
What Summary does
Sumally Inc. (株式会社サマリー) is a Tokyo-based private company founded in April 2010 that operates Sumally Pocket, a Japan-domestic subscription parcel-storage and retrieval service. The company originally launched a social-networking product called 'Sumally' in 2010, but wound that down in July 2023 to concentrate on the storage business, which had been running since September 2015. As of September 2025, Sumally Pocket had served more than 130,000 cumulative users and stored more than 1,000,000 boxes, and it operates a hybrid consumer/enterprise model with 150+ corporate clients managing 60,000+ items and 144% year-over-year growth in the enterprise segment as of April 2025.
The core product is a box-based or pallet-based storage subscription delivered through a proprietary warehouse management system (WMS) developed in-house. Standard Plan customers (¥394–¥695 per box per month) receive photo-based item cataloguing, per-item retrieval with next-day delivery, and add-on options such as oxygen-free storage, cleaning, and shoe care; an Economy Plan (¥330 per box) and a Books Plan (¥495) sit at lower and more specialized price points, while a Large Item Plan (¥795–¥895) handles suitcases, skis, snowboards, and golf bags. The company extends into enterprise offerings via a Space Plan (pallet storage, quote-based, multi-year contracts) and a document dissolution end-of-life service, and a 144-store cleaning-store drop-off network under the 'Doko Kuro' brand launched in April 2026.
Sumally earns revenue primarily through recurring monthly subscription fees per box or pallet, supplemented by pay-per-shipment retrieval fees (¥352–¥1,320 per package), optional add-on services, and quote-based enterprise contracts. The company is privately held; its major shareholders include the management team, Mitsubishi Estate, Sumitomo Corporation, Terada Warehouse, and Mitsubishi Warehouse, and it raised a third-party allotment led by creative agency TYO in January 2018 (undisclosed amount). Its current representative director and CEO is Kusakabe Kosuke (日下部康介), who succeeded founder Yamamoto Kensuke (山本憲資).
Summary firmographics
Firmographics- Name
- Summary
- Legal name
- 株式会社サマリー
- Website
- https://sumally.com
- Company type
- Private
- Founded year
- 2010
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sumally Inc. is a Tokyo-based private company operating Sumally Pocket, a Japan-domestic subscription parcel-storage and retrieval service serving individual consumers and enterprise customers with box-based, photo-catalogued storage starting at ¥330 per box per month.
- Ownership category
- akta.pro rank
Summary industry classification
Industry- Product category
- Personal Storage Services
- NAICS
- General Warehousing and Storage (493110), Warehousing and Storage (493)
- SIC
- Public Warehousing & Storage (4220)
- akta.pro primary industry
- Commercial Full-Service Storage (HSAKAHAB)
Keywords
Where Summary is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices2 records
Markets served
Summary business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Infrastructure, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Operations
Revenue model
- Monthly storage subscription fees: Recurring monthly fees charged per box or pallet stored. Users pay a fixed monthly rate based on plan tier and box type. Core revenue driver with predictable recurring income.
- Retrieval delivery fees: One-time fees charged when users request items to be retrieved and delivered back to them. Pricing is per shipment (not per item), starting at ¥880 per package. Generates incremental revenue on an as-needed basis.
- Optional services: Additional services including professional photo shooting beyond included limit, clothing hanging storage, cleaning, shoe care, premium support (increased compensation coverage), and reusable/recycle options. Sold as add-ons to the base subscription.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Standard Plan with Regular box - photo item management |
| Subscription | Monthly | Standard Plan with Apparel (hanger) box - photo item management for hanging clothes |
| Subscription | Monthly | Standard Plan with Large box - photo item management for bulky items |
| Subscription | Monthly | Economy Plan - box-level management without photo |
| Subscription | Monthly | Books Plan - photo/barcode item management for books |
| Subscription | Monthly | Large Item Plan - suitcases, skis, snowboards, golf bags |
| Quote-based/ custom | Multi-year contract | Space Plan (Enterprise) - pallet storage for large items |
| Transaction based/ take rate | Pay-as-you-go | Retrieval delivery fee |
Go-to-market motion3 records
Distribution channels5 records
Marketing channels7 records
Summary product offering
Product offeringCore offering
Sumally Co., Ltd. operates "Sumally Pocket" (サマリーポケット), a subscription-based cloud parcel storage service in Japan. Customers pack belongings into specialized boxes, schedule free home pickup via smartphone app, and the items are stored in climate-controlled warehouses. Retrieved items can be delivered to any address as quickly as the next day. The service includes photo-based item management for the Standard Plan, allowing users to browse and request individual items from their stored boxes without retrieving the full box. The company also offers a corporate Space Plan (pallet storage), a clothing drop-off service at partner cleaning stores called "Doko Kuro," and various optional add-on services including oxygen-free storage, cleaning, and reuse/recycle options.
Differentiator
Problem solved
Functional benefit
Products and services
- Sumally Pocket Standard Plan (スタンダードプラン) Item-level storage plan for individual consumers, offering photo-based cataloging of up to 30 items per box, individual item retrieval, support for all optional add-on services including oxygen-free storage, and free home pickup/delivery. Available in regular, apparel (hanger), and large box formats. Targeted at urban consumers seeking to declutter their homes.
- Sumally Pocket Economy Plan (エコノミープラン) Box-level storage plan for budget-conscious consumers, providing the lowest monthly price point (from 330 yen/month per regular box) without photo management or individual item retrieval. Supports Yu-mail delivery as a cost-efficient retrieval option. Targeted at price-sensitive individual users.
- Sumally Pocket Books Plan (ブックスプラン) Specialized storage plan for book collectors and readers at 495 yen/month per box, offering unlimited barcode-based cataloging of book titles and covers for item-level retrieval. Supports Yu-mail delivery for cost-efficient shipping.
- Sumally Pocket Large Item Plan (大型アイテムプラン) Storage plan for oversized items that do not fit into standard boxes, including suitcases (with contents inside), skis, snowboards, and golf bags. Pricing ranges from 795 to 895 yen/month per item, with a 30kg maximum weight. Includes dedicated protective cover for suitcases.
- Sumally Pocket Space Plan (法人向けスペースプラン) Enterprise B2B storage plan providing dedicated pallet-based storage space (110cm x 110cm x 130cm, capacity equivalent to approximately 24 x 120-size moving boxes) for large items that exceed standard box dimensions. Includes photo management per pallet, a document dissolution (文書溶解) option for end-to-end document lifecycle management, and flexible delivery to any address. Minimum 3-month storage period with inquiry-based pricing. Targeted at corporate clients including real estate firms, advertising agencies, theme parks, and fashion companies.
- Doko Kuro (どこクロ) Clothing Storage Service Clothing storage service operated through partner cleaning store locations, enabling customers to deposit clothes directly at cleaning stores without needing boxes or shipping. Items can be stored from as little as 1 garment, with deployment across 144 cleaning store locations. Targeted at individual consumers seeking a convenient drop-off alternative to home pickup.
- Sumally Pocket Optional Add-on Services Optional add-on services available to Standard Plan subscribers, including oxygen-free storage (preventing mold, insect damage, and yellowing), clothing hanging storage, professional clothing cleaning, futon cleaning, rug/mat cleaning, shoe cleaning, shoe repair, reuse/recycle options for retrieved items, and premium support with increased compensation coverage.
Quantifiable outcome
- Enterprise storage plan grew 144% year-over-year with 150+ enterprise clients and 60,000+ stored items as of April 2025
- +2 more outcomes
Companies that use Summary
Customer profileNamed customers7 records
Segments3 records
Ideal customer profiles2 records
Summary technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Summary partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and minor.
- ホワイト急便 (White Kyubin) and ポニークリーニング (Ponye Cleaning)coreCleaning store chain partners serving as physical drop-off windows for the 'Doko Kuro' (どこクロ) clothing storage service. Clothes can be deposited directly at partner stores from as little as 1 garment, without requiring customer-provided boxes or shipping arrangements.
- 株式会社MamaWellminorCollaboration campaign targeting pre-maternity and new parents. MamaWell provides maternal care consultation while Sumally Pocket provides storage for baby-related items, supporting new parents' living space needs.
- 株式会社エイブル (Able Inc.)minorJoint consumer survey partner for 'mono no zakubaku' (possessions burden) research. Survey data shared between Able (real estate) and Sumally (storage) to understand consumer storage behavior and promote both services.
- ブックオフコーポレーション株式会社 (Bookoff Corporation Inc.)minorJoint consumer survey partner studying reuse behavior and storage habits. Partnership explores the connection between storage services and resale/reuse of possessions.
- 株式会社 東急パワーサプライ (Tokyu Power Supply Co., Ltd.)minorBusiness partnership for new life campaign targeting moving customers. Combined promotional campaigns for new residents offering Sumally Pocket storage services.
- 日本通運株式会社 (Nippon Express Co., Ltd.)minorLogistics partnership enabling customers to use moving cardboard boxes from Nippon Express for Sumally Pocket storage. Simplifies the moving and storage process by allowing moving boxes to double as storage boxes.
- 三菱地所株式会社 (Mitsubishi Estate Co., Ltd.)coreStrategic partnership to offer tenant storage services at Hibiya International Building. Tenant companies receive preferential pricing on Sumally Pocket Standard Plan with 1-year free storage. 三菱地所 is also a major shareholder. This is a flagship partnership expanding into Mitsubishi Estate's broader building portfolio.
- 三菱倉庫株式会社 (Mitsubishi Warehouse Co., Ltd.)coreStorage infrastructure partner and major shareholder. Co-exhibited at Back Office DXPO Tokyo trade shows (Summer and Autumn 2024) for enterprise storage promotion. 三菱倉庫 provides trusted warehouse facilities.
- 株式会社真多呂人形 (Mataro Ningyo Co., Ltd.)minorSpecial plan allowing customers to store dolls (hina-ningyo) in original Mataro packaging. New users receive ¥1,650 in coupon value (6 months free storage). Partnership addresses niche storage need for traditional doll collections.
- BERMAS (バーマス) / 衣川産業株式会社minorSuitcase brand partnership offering discount coupons to BERMAS customers. Suitcase purchasers receive ¥2,000 in Sumally Pocket points (equivalent to ~3 months free large item storage). Joint promotion targeting suitcase owners with storage needs.
- 寺田倉庫株式会社 (Terada Warehouse Co., Ltd.)coreStorage infrastructure partner and major shareholder. Provides climate-controlled and secure storage facilities for Sumally Pocket. Partnership established October 2021 with development of proprietary WMS.
- 株式会社CaSyminorHome cleaning service partnership offering bundled promotions. CaSy's regular cleaning customers receive free 1-box monthly storage and 1 free retrieval delivery per year. Cross-promotional marketing between home cleaning and storage services.
- 株式会社丸善ジュンク堂書店minorBookstore partnership offering preferential pricing on Sumally Pocket to bookstore customers, particularly targeting book storage needs.
Scale indicators7 records
Recent moves6 records
Expansion highlights6 records
Summary competitors and assessment
Company assessmentDirect peers
- Space Plus: Operates indoor and container self-storage facilities across Japan with online booking and delivery options. Targets the same urban storage-use case as Sumally Pocket and competes for both B2C and small-business customers.
- Closetbox (US): US-based on-demand home storage subscription service that picks up, stores, and delivers boxes on demand. Operates an essentially identical full-service (pickup, storage, redelivery) model to Sumally Pocket in the Japanese market.
- Trunk Room: Operates a network of indoor self-storage facilities across Japan, directly competing with Sumally Pocket for urban household and small-business storage demand. Closest direct Japanese competitor in the subscription-style storage category.
- MakeSpace: US on-demand storage and logistics service providing photo-cataloged boxes with on-demand retrieval and delivery. Direct international analog of Sumally Pocket's tech-enabled subscription storage model.
- Clutter: US subscription-based storage and moving service with photo-cataloged inventory and on-demand retrieval. Comparable in business model, pricing structure, and target customer to Sumally Pocket.
- Hello Storage: Container-based self-storage brand operated by Area Quest; offers nationwide outdoor container storage with door-to-door pickup in some areas, overlapping with Sumally's home-pickup storage model. Comparable in target customer (urban households needing extra space) and pricing model.
Others
- Terada Warehouse: Japanese warehousing and logistics conglomerate that is both a major Sumally shareholder and physical storage infrastructure partner. Comparable as an incumbent storage operator and key strategic enabler for Sumally's warehouse footprint.
- Sagawa Express: Major Japanese logistics company offering home delivery, moving, and storage-related services. Comparable as a logistics-and-storage ecosystem participant whose last-mile network overlaps with Sumally's pickup/delivery model.
Emerging players
- AnySmart (Korea): Korean subscription-based storage service offering monthly box storage with pickup, photo management, and retrieval. Highly comparable business model to Sumally Pocket and serves as the most relevant international emerging peer.
Broad incumbents
- Iron Mountain: Global enterprise records and information management company offering secure storage, digitization, and destruction services. Overlaps with Sumally's enterprise document dissolution and archival storage offerings at the B2B end of the market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Summary social profiles
Digital presenceSummary financial estimates
Financial estimateRevenue estimate
Valuation estimate
Summary leadership team
Management profileNumber of profiles
Profiles1 record
Summary funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Summary M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Summary
What does Summary do?
Sumally Co., Ltd. operates "Sumally Pocket" (サマリーポケット), a subscription-based cloud parcel storage service in Japan. Customers pack belongings into specialized boxes, schedule free home pickup via smartphone app, and the items are stored in climate-controlled warehouses. Retrieved items can be delivered to any address as quickly as the next day. The service includes photo-based item management for the Standard Plan, allowing users to browse and request individual items from their stored boxes without retrieving the full box. The company also offers a corporate Space Plan (pallet storage), a clothing drop-off service at partner cleaning stores called "Doko Kuro," and various optional add-on services including oxygen-free storage, cleaning, and reuse/recycle options.
Is Summary a public or private company?
Summary is a private company. It is classified as corporate owned and is currently operating.
When was Summary founded?
Summary was founded in 2010. It employs 1 to 10 people.
Where is Summary based?
Summary is headquartered in Tokyo, Japan, in the Asia region.
How does Summary make money?
Three revenue lines are on record. Monthly storage subscription fees are the primary driver. The others are retrieval delivery fees and optional services.
Who are Summary's main competitors?
Direct peers on record are Space Plus, Closetbox (US), Trunk Room, MakeSpace, Clutter and Hello Storage. Others are Terada Warehouse and Sagawa Express. AnySmart (Korea) is listed as an emerging player. Iron Mountain is listed as a broad incumbent.
Does Summary have an API?
No public API is recorded for Summary.
What industry is Summary in?
Summary's product category is Personal Storage Services. Its primary akta.pro industry code is HSAKAHAB, Commercial Full-Service Storage. Its NAICS code is 493110 and its SIC code is 4220.