Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2025-11-12
StandardJapan GAAP
ConsolidatedNo
Data checks12 of 12 passed
Key figures · 46
MetricValuePeriodScopeSource row
Revenue¥35.1bn2025-04-01 → 2025-09-30StandaloneNet sales
Revenue¥70.1bn2024-04-01 → 2025-03-31StandaloneNet sales (5-year summary)
Revenue¥32.8bn2024-04-01 → 2024-09-30StandaloneNet sales
Operating income¥831m2025-04-01 → 2025-09-30StandaloneOperating income
Operating income¥839m2024-04-01 → 2024-09-30StandaloneOperating income
Ordinary income¥1.0bn2025-04-01 → 2025-09-30StandaloneOrdinary income
Ordinary income¥2.1bn2024-04-01 → 2025-03-31StandaloneOrdinary income loss (5-year summary)
Ordinary income¥998m2024-04-01 → 2024-09-30StandaloneOrdinary income
Profit before tax¥1.0bn2025-04-01 → 2025-09-30StandaloneIncome before income taxes
Profit before tax¥1.6bn2024-04-01 → 2024-09-30StandaloneIncome before income taxes
Net income¥621m2025-04-01 → 2025-09-30StandaloneProfit loss
Net income¥1.8bn2024-04-01 → 2025-03-31StandaloneNet income loss (5-year summary)
Net income¥1.1bn2024-04-01 → 2024-09-30StandaloneProfit loss
Total assets¥90.8bnat 2025-09-30StandaloneAssets
Total assets¥90.1bnat 2025-03-31StandaloneAssets
Total assets¥88.5bnat 2024-09-30StandaloneTotal assets (5-year summary)
Total liabilities¥24.4bnat 2025-09-30StandaloneLiabilities
Total liabilities¥25.3bnat 2025-03-31StandaloneLiabilities
Net assets / equity¥66.4bnat 2025-09-30StandaloneNet assets
Net assets / equity¥64.9bnat 2025-03-31StandaloneNet assets
Net assets / equity¥67.5bnat 2024-09-30StandaloneNet assets (5-year summary)
Cash and deposits¥14.8bnat 2025-09-30StandaloneCash and deposits
Cash and deposits¥10.2bnat 2025-03-31StandaloneCash and deposits
Cash & equivalents¥14.8bnat 2025-09-30StandaloneCash and cash equivalents
Cash & equivalents¥10.2bnat 2025-03-31StandaloneCash and cash equivalents
Cash & equivalents¥15.9bnat 2024-09-30StandaloneCash and cash equivalents
Cash & equivalents¥18.6bnat 2024-03-31vStandaloneCash and cash equivalents
Operating cash flow¥8.7bn2025-04-01 → 2025-09-30StandaloneNet cash provided by used in operating activities
Operating cash flow−¥355m2024-04-01 → 2025-03-31StandaloneNet cash provided by used in operating activities (5-year summary)
Operating cash flow¥8.9bn2024-04-01 → 2024-09-30StandaloneNet cash provided by used in operating activities
Investing cash flow−¥78m2025-04-01 → 2025-09-30StandaloneNet cash provided by used in investment activities
Investing cash flow¥1.9bn2024-04-01 → 2025-03-31StandaloneNet cash provided by used in investing activities (5-year summary)
Investing cash flow−¥2.5bn2024-04-01 → 2024-09-30StandaloneNet cash provided by used in investment activities
Financing cash flow−¥4.1bn2025-04-01 → 2025-09-30StandaloneNet cash provided by used in financing activities
Financing cash flow−¥10.0bn2024-04-01 → 2025-03-31StandaloneNet cash provided by used in financing activities (5-year summary)
Financing cash flow−¥9.0bn2024-04-01 → 2024-09-30StandaloneNet cash provided by used in financing activities
EPS (basic)¥24.452025-04-01 → 2025-09-30StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥63.472024-04-01 → 2025-03-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥38.312024-04-01 → 2024-09-30StandaloneBasic earnings loss per share (5-year summary)
Dividend per share¥412024-04-01 → 2025-03-31StandaloneDividend paid per share (5-year summary)
Equity ratio73.1%at 2025-09-30StandaloneEquity to asset ratio (5-year summary)
Equity ratio72.0%at 2025-03-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio76.2%at 2024-09-30StandaloneEquity to asset ratio (5-year summary)
Shares issued26,794,000at 2025-09-30StandaloneTotal number of issued shares (5-year summary)
Shares issued26,794,000at 2025-03-31StandaloneTotal number of issued shares (5-year summary)
Shares issued15,397,000at 2024-09-30StandaloneTotal number of issued shares (5-year summary)

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

Segments · 24
SegmentItemPeriodValue
Constructionreportable segmentrevenue2025-04-01 → 2025-09-30¥16.7bn
Constructionreportable segmentrevenue external2025-04-01 → 2025-09-30¥16.7bn
Constructionreportable segmentsegment profit2025-04-01 → 2025-09-30¥1.7bn
Public Worksreportable segmentrevenue2025-04-01 → 2025-09-30¥18.5bn
Public Worksreportable segmentrevenue external2025-04-01 → 2025-09-30¥18.5bn
Public Worksreportable segmentsegment profit2025-04-01 → 2025-09-30¥1.6bn
—segment totalrevenue2025-04-01 → 2025-09-30¥35.1bn
—segment totalrevenue external2025-04-01 → 2025-09-30¥35.1bn
—segment totalsegment profit2025-04-01 → 2025-09-30¥3.3bn
Total Of Reportable Segments And Otherssegment totalrevenue2025-04-01 → 2025-09-30¥35.1bn
Total Of Reportable Segments And Otherssegment totalrevenue external2025-04-01 → 2025-09-30¥35.1bn
Total Of Reportable Segments And Otherssegment totalsegment profit2025-04-01 → 2025-09-30¥3.3bn
Constructionreportable segmentrevenue2024-04-01 → 2024-09-30¥15.4bn
Constructionreportable segmentrevenue external2024-04-01 → 2024-09-30¥15.4bn
Constructionreportable segmentsegment profit2024-04-01 → 2024-09-30¥1.8bn
Public Worksreportable segmentrevenue2024-04-01 → 2024-09-30¥17.4bn
Public Worksreportable segmentrevenue external2024-04-01 → 2024-09-30¥17.4bn
Public Worksreportable segmentsegment profit2024-04-01 → 2024-09-30¥1.2bn
—segment totalrevenue2024-04-01 → 2024-09-30¥32.8bn
—segment totalrevenue external2024-04-01 → 2024-09-30¥32.8bn
—segment totalsegment profit2024-04-01 → 2024-09-30¥3.0bn
Total Of Reportable Segments And Otherssegment totalrevenue2024-04-01 → 2024-09-30¥32.8bn
Total Of Reportable Segments And Otherssegment totalrevenue external2024-04-01 → 2024-09-30¥32.8bn
Total Of Reportable Segments And Otherssegment totalsegment profit2024-04-01 → 2024-09-30¥3.0bn

Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.

All source rows · 471
ItemContextValueUnit
Amendment flagFilingDateInstantfalse
Identification of document subject to amendmentFilingDateInstant-
Report amendment flagFilingDateInstantfalse
Xbrl amendment flagFilingDateInstantfalse
Business results of reporting company (text)FilingDateInstantText · Plus
Description of business (text)FilingDateInstantText · Plus
Business risks (text)FilingDateInstantText · Plus
Management analysis of financial position operating results and cash flows (text)FilingDateInstantText · Plus
Critical contracts (text)FilingDateInstantText · Plus
Total number of shares (text)FilingDateInstantText · Plus
Issued shares total number of shares etc (text)FilingDateInstantText · Plus
Class issued shares total number of shares etcFilingDateInstant_OrdinaryShareMember
Original text (Japanese)普通株式
Name of financial instruments exchange on which securities are listed or authorized financial instruments business association to which securities are registeredFilingDateInstant_OrdinaryShareMember
Original text (Japanese)東京証券取引所スタンダード市場
Description issued shares total number of shares etcFilingDateInstant_OrdinaryShareMember
Original text (Japanese)単元株式数は100株であります。
Details of employee share option program (text)FilingDateInstantText · Plus
Other information on share acquisition rights (text)FilingDateInstantText · Plus
Exercises etc of moving strike convertible bonds etc (text)FilingDateInstantText · Plus
Changes in number of issued shares stated capital etc (text)FilingDateInstantText · Plus
Major shareholders (text)FilingDateInstantText · Plus
Name major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)株式会社OHMOTOホールディングス
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)東京都港区南青山5―9―15青山OHMOTOビル
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)公益財団法人大本育英会
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)岡山市北区内山下1―1―13
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)有限会社大百興産
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)岡山市北区今4―9―23
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)株式会社中国銀行
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)岡山市北区丸の内1―15―20
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)大本組従業員持株会
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)岡山市北区内山下1―1―13
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)古 田 安 人
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)東京都中央区
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)日本マスタートラスト信託銀行株式会社(株式付与ESOP信託口・80096口)
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)東京都港区赤坂1―8-1赤坂インターシティAIR
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)株式会社広島銀行
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)広島市中区紙屋町1―3―8
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)小 倉 順 子
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)茨城県つくば市
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)古 田 嘉 男
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)岡山市中区
Issued shares voting rights (text)FilingDateInstantText · Plus
Description issued shares voting rightsInterimInstant_SharesWithNoVotingRightsMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_OrdinarySharesSharesWithFullVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_OrdinarySharesSharesLessThanOneUnitMember
Original text (Japanese)1単元(100株)未満の株式
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)株式会社大本組
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)岡山市北区内山下1―1―13
Information about officers (text)FilingDateInstantText · Plus

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 12 of 12 passed
balance sheet identitynon_consolidated 2025-03-31pass rounding
balance sheet identitynon_consolidated 2025-09-30pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsnon_consolidated 2025-03-31pass
statement vs summary · net assetsnon_consolidated 2025-09-30pass
statement vs summary · operating cash flownon_consolidated 2024-04-01/2024-09-30pass
statement vs summary · operating cash flownon_consolidated 2025-04-01/2025-09-30pass
statement vs summary · revenuenon_consolidated 2024-04-01/2024-09-30pass
statement vs summary · revenuenon_consolidated 2025-04-01/2025-09-30pass
statement vs summary · total assetsnon_consolidated 2025-03-31pass
statement vs summary · total assetsnon_consolidated 2025-09-30pass