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Sumutasu

eCommerce & Marketplaces · Tokyo, Japan · Founded 2018

An online real estate marketplace that enables users to quickly buy and sell their properties MoreLess

Sumutasu Inc., established in January 2018, operates in the Japanese real estate technology sector, focusing on streamlining the process of buying and selling residential properties. The company was co-founded by CEO Takahiro Sumi and Director Tomoya Ito. Sumi's background includes launching the real estate media platform "Ieul" at Speee Inc. and holding multiple roles at Itanji, experiences that directly inform Sumutasu's mission. Ito previously worked at Recruit Holdings on the "SUUMO" real estate portal and was the first senior product manager at the Japanese branch of "OYO LIFE". The company’s name, a blend of the Japanese words for "to live" (sumu) and "to add" (tasu), reflects its mission to add new value to housing.

Sumutasu's business model is centered on the "iBuyer" concept, where the company directly purchases properties from homeowners, aiming to simplify and accelerate the traditionally complex sales process. The firm utilizes a proprietary AI-powered assessment algorithm to provide homeowners with a purchase offer, often within an hour, and can complete the transaction and cash payment in as little as two days. This approach addresses common seller pain points such as uncertain timelines, the hassle of property viewings, and negotiations with multiple parties. Revenue is generated by purchasing condominiums, renovating them, and then reselling them. The company also offers a brokerage service, giving sellers a choice between a direct, quick sale to Sumutasu or a traditional market listing.

The primary service, "Sumutasu Gaikyaku" (Sumutasu Sale), targets condominium owners in metropolitan areas like Tokyo, Kansai, and Tokai who are looking for a transparent and swift selling experience. By acting as the direct buyer, Sumutasu eliminates the need for intermediary brokerage, often waiving the associated fees for the seller. For buyers, the company operates "Sumutasu Chokuhan," a portal for purchasing these renovated condominiums, also without a brokerage fee. The company has achieved significant traction, with cumulative property assessment requests surpassing 40,000, valued at over 1.13 trillion yen as of July 2024. Sumutasu has secured substantial funding through multiple rounds, including a Series C round of 1.3 billion yen and a recent debt financing of 2.2 billion yen, bringing its total raised capital to over 3 billion yen.

Keywords: iBuyer Japan, real estate technology, property technology, direct home buying, AI property valuation, real estate direct purchase, condominium sales, property renovation, real estate platform, PropTech, online real estate, home selling service, Tokyo real estate, Takahiro Sumi, Tomoya Ito, instant home offer, real estate financing, housing market, residential property, renovated condominiums

Talent graph

Sumutasu's talent

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Employees 40 total headcount
Founders Hidden — book a demo/100 quality score
Key operators Hidden — book a demo quality score
Potential founders Hidden — book a demo likely future founders
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Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

11 investors on Sumutasu's cap table

Sourced from Dealroom's funding and investor records.

Seed 1 investor entered at this stage
Coral Capital
Series A 5 investors entered at this stage
World Innovation Lab
Mobile Internet Capital
Kiraboshi Capital
Mercuria Investment
Carta Ventures
Series B+ 5 investors entered at this stage
Japan Finance
Energy and Environment Investment
Norinchukin Bank
Upsider Capital
Mizuho

Global footprint

Where Sumutasu has talent and traffic

Workforce by country
🇯🇵 Japan · Tokyo HQ
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Market sentiment

What the market is saying about Sumutasu

An AI-synthesized read of the highest-engagement posts about Sumutasu on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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