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ONESTRUCTION raises ¥910 million in a funding round to enhance its AI-driven construction technology solutions with investors including Mitsui Sumitomo Insurance Capital.

PRIVATEMay 25, 2026

Amount Raised

¥910 Million

Round Type

Funding Round

JapanSoftwareArtificial IntelligenceMachine LearningConstruction

Investors

Tottori Bank, Ltd.San In Godo Bank, Ltd.Japan Finance CorporationAlbacross Co., Ltd.Chugin Capital PartnersPeople And Future Co., Ltd.RegionalMitsui Sumitomo Insurance Capital

Description

ONESTRUCTION, a Japan-based construction technology startup, has successfully raised ¥910 million in funding. The funds will be utilized to accelerate the development of AI-driven solutions and strengthen its engineering teams. Key investors include Mitsui Sumitomo Insurance Capital, Regional, People and Future Co., Ltd., and others. The company aims to expand into overseas markets and build strategic partnerships.

Quick answer

ONESTRUCTION raised ¥910 Million in a Funding Round round, dated May 25, 2026. Investors: Tottori Bank, Ltd., San In Godo Bank, Ltd., Japan Finance Corporation, Albacross Co., Ltd., Chugin Capital Partners, People And Future Co., Ltd., Regional and Mitsui Sumitomo Insurance Capital. ONESTRUCTION is based in Japan.

How much did ONESTRUCTION raise?
ONESTRUCTION raised ¥910 Million in a Funding Round round on May 25, 2026.
Who invested in ONESTRUCTION?
Tottori Bank, Ltd., San In Godo Bank, Ltd., Japan Finance Corporation, Albacross Co., Ltd., Chugin Capital Partners, People And Future Co., Ltd., Regional and Mitsui Sumitomo Insurance Capital are named as investors in this round.
What does ONESTRUCTION do?
ONESTRUCTION is a construction technology company founded in 2020 with the mission of bridging construction and technology.
Where is ONESTRUCTION based and how big is it?
ONESTRUCTION is based in Japan. Fundz records about 29 employees.
Who are the decision-makers at ONESTRUCTION?
Fundz holds 3 contacts at ONESTRUCTION, including the Vice President, Global Strategy. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Construction and Software around the same time

Companies in the same sectors as ONESTRUCTION that raised within 45 days of this round, from Fundz verified event records.

  • Ollama raised $65M (Series B) on July 9, 2026.
  • Telepatía AI raised $33M (Series A) on July 9, 2026.
  • Sherpa raised $2.2M (Pre-Seed) on July 9, 2026.
  • Marker raised $13M (Seed) on July 9, 2026.
  • DeepCtrls raised an undisclosed amount (Funding Round) on July 9, 2026.
  • SambaNova raised $1B (Series F) on July 8, 2026.

Who to call at ONESTRUCTION, and when

A new round usually means ONESTRUCTION is about to hire and buy. The teams that reach out first get the meeting.

  • An alert the day ONESTRUCTION raises, hires an executive or expands, scored against what you sell
  • The decision-makers there, with verified emails
  • Who you already know at ONESTRUCTION, from your own LinkedIn network

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Company Information

Company

ONESTRUCTION

Location

Japan

About

ONESTRUCTION is a construction technology company founded in 2020 with the mission of bridging construction and technology. The company develops openBIM-centered solutions designed to accelerate digital transformation and AI adoption in the construction industry. Its product portfolio includes OpenAEC, a BIM data quality control software platform; Ishigaki, an AI platform model specialized for construction; and Contex, an upcoming AI software platform for assetizing construction data.

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Related People

3 contacts
Verified contactsLucas H., Vice President, Global Strategy hidden hiddenSee plans and pricing
Predictive Intelligence
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ONESTRUCTION raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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