Half-year report · HY

Period2025-10-01 → 2026-03-31
Filed2026-05-15
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥49.0bn2025-10-01 → 2026-03-31Cons.Net sales
Revenue¥95.4bn2024-10-01 → 2025-09-30Cons.Net sales (5-year summary)
Revenue¥46.3bn2024-10-01 → 2025-03-31Cons.Net sales
Operating income¥4.6bn2025-10-01 → 2026-03-31Cons.Operating income
Operating income¥4.0bn2024-10-01 → 2025-03-31Cons.Operating income
Ordinary income¥5.1bn2025-10-01 → 2026-03-31Cons.Ordinary income
Ordinary income¥5.8bn2024-10-01 → 2025-09-30Cons.Ordinary income loss (5-year summary)
Ordinary income¥4.2bn2024-10-01 → 2025-03-31Cons.Ordinary income
Profit before tax¥5.1bn2025-10-01 → 2026-03-31Cons.Income before income taxes
Profit before tax¥4.2bn2024-10-01 → 2025-03-31Cons.Income before income taxes
Net income (owners)¥3.5bn2025-10-01 → 2026-03-31Cons.Profit loss attributable to owners of parent
Net income (owners)¥3.8bn2024-10-01 → 2025-09-30Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥2.9bn2024-10-01 → 2025-03-31Cons.Profit loss attributable to owners of parent
Net income¥3.5bn2025-10-01 → 2026-03-31Cons.Profit loss
Net income¥2.8bn2024-10-01 → 2025-03-31Cons.Profit loss
Total assets¥95.3bnat 2026-03-31Cons.Assets
Total assets¥78.2bnat 2025-09-30Cons.Assets
Total assets¥85.1bnat 2025-03-31Cons.Total assets (5-year summary)
Total liabilities¥64.5bnat 2026-03-31Cons.Liabilities
Total liabilities¥49.5bnat 2025-09-30Cons.Liabilities
Net assets / equity¥30.8bnat 2026-03-31Cons.Net assets
Net assets / equity¥28.7bnat 2025-09-30Cons.Net assets
Net assets / equity¥26.4bnat 2025-03-31Cons.Net assets (5-year summary)
Cash and deposits¥13.1bnat 2026-03-31Cons.Cash and deposits
Cash and deposits¥9.9bnat 2025-09-30Cons.Cash and deposits
Cash & equivalents¥12.8bnat 2026-03-31Cons.Cash and cash equivalents
Cash & equivalents¥9.5bnat 2025-09-30Cons.Cash and cash equivalents
Cash & equivalents¥15.0bnat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥9.7bnat 2024-09-30vCons.Cash and cash equivalents
Operating cash flow−¥9.6bn2025-10-01 → 2026-03-31Cons.Net cash provided by used in operating activities
Operating cash flow−¥1.7bn2024-10-01 → 2025-09-30Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow−¥7.8bn2024-10-01 → 2025-03-31Cons.Net cash provided by used in operating activities
Investing cash flow−¥655m2025-10-01 → 2026-03-31Cons.Net cash provided by used in investment activities
Investing cash flow−¥1.8bn2024-10-01 → 2025-09-30Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥1.1bn2024-10-01 → 2025-03-31Cons.Net cash provided by used in investment activities
Financing cash flow¥13.2bn2025-10-01 → 2026-03-31Cons.Net cash provided by used in financing activities
Financing cash flow¥3.3bn2024-10-01 → 2025-09-30Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow¥14.0bn2024-10-01 → 2025-03-31Cons.Net cash provided by used in financing activities
EPS (basic)¥290.622025-10-01 → 2026-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥318.412024-10-01 → 2025-09-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥239.592024-10-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
Equity ratio32.1%at 2026-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio36.4%at 2025-09-30Cons.Equity to asset ratio (5-year summary)
Equity ratio30.9%at 2025-03-31Cons.Equity to asset ratio (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 · 38
SegmentItemPeriodValue
Otherother segmentsrevenue2025-10-01 → 2026-03-31¥1.5bn
Otherother segmentsrevenue external2025-10-01 → 2026-03-31¥1.1bn
Otherother segmentsrevenue intersegment2025-10-01 → 2026-03-31¥400m
Otherother segmentssegment profit2025-10-01 → 2026-03-31¥168m
Reconciling Itemsreconcilingrevenue2025-10-01 → 2026-03-31−¥681m
Reconciling Itemsreconcilingrevenue intersegment2025-10-01 → 2026-03-31−¥681m
Reconciling Itemsreconcilingsegment profit2025-10-01 → 2026-03-31¥2m
Environment Management Servicereportable segmentrevenue2025-10-01 → 2026-03-31¥8.0bn
Environment Management Servicereportable segmentrevenue external2025-10-01 → 2026-03-31¥7.7bn
Environment Management Servicereportable segmentrevenue intersegment2025-10-01 → 2026-03-31¥277m
Environment Management Servicereportable segmentsegment profit2025-10-01 → 2026-03-31¥924m
Infra Management Servicereportable segmentrevenue2025-10-01 → 2026-03-31¥40.2bn
Infra Management Servicereportable segmentrevenue external2025-10-01 → 2026-03-31¥40.2bn
Infra Management Servicereportable segmentrevenue intersegment2025-10-01 → 2026-03-31¥4m
Infra Management Servicereportable segmentsegment profit2025-10-01 → 2026-03-31¥3.5bn
—segment totalrevenue2025-10-01 → 2026-03-31¥49.7bn
—segment totalrevenue external2025-10-01 → 2026-03-31¥49.0bn
—segment totalrevenue intersegment2025-10-01 → 2026-03-31¥681m
—segment totalsegment profit2025-10-01 → 2026-03-31¥4.6bn
Otherother segmentsrevenue2024-10-01 → 2025-03-31¥1.5bn
Otherother segmentsrevenue external2024-10-01 → 2025-03-31¥1.1bn
Otherother segmentsrevenue intersegment2024-10-01 → 2025-03-31¥404m
Otherother segmentssegment profit2024-10-01 → 2025-03-31¥131m
Reconciling Itemsreconcilingrevenue2024-10-01 → 2025-03-31−¥611m
Reconciling Itemsreconcilingrevenue intersegment2024-10-01 → 2025-03-31−¥611m
Reconciling Itemsreconcilingsegment profit2024-10-01 → 2025-03-31¥17m
Environment Management Servicereportable segmentrevenue2024-10-01 → 2025-03-31¥7.0bn
Environment Management Servicereportable segmentrevenue external2024-10-01 → 2025-03-31¥6.9bn
Environment Management Servicereportable segmentrevenue intersegment2024-10-01 → 2025-03-31¥187m
Environment Management Servicereportable segmentsegment profit2024-10-01 → 2025-03-31¥462m
Infra Management Servicereportable segmentrevenue2024-10-01 → 2025-03-31¥38.4bn
Infra Management Servicereportable segmentrevenue external2024-10-01 → 2025-03-31¥38.4bn
Infra Management Servicereportable segmentrevenue intersegment2024-10-01 → 2025-03-31¥20m
Infra Management Servicereportable segmentsegment profit2024-10-01 → 2025-03-31¥3.4bn
—segment totalrevenue2024-10-01 → 2025-03-31¥46.9bn
—segment totalrevenue external2024-10-01 → 2025-03-31¥46.3bn
—segment totalrevenue intersegment2024-10-01 → 2025-03-31¥611m
—segment totalsegment profit2024-10-01 → 2025-03-31¥4.0bn

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

All source rows · 537
ItemContextValueUnit
Type of current periodFilingDateInstantHY
Current fiscal year end dateFilingDateInstant2026-09-30
Previous fiscal year start dateFilingDateInstant2024-10-01
Comparative period end dateFilingDateInstant2025-03-31
Previous fiscal year end dateFilingDateInstant2025-09-30
Next fiscal year start dateFilingDateInstant-
End date of quarterly or semi annual period of next fiscal yearFilingDateInstant-
Amendment flagFilingDateInstantfalse
Identification of document subject to amendmentFilingDateInstant-
Report amendment flagFilingDateInstantfalse
Xbrl amendment flagFilingDateInstantfalse
Business results of group (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)権利内容に何ら限定のない当社における標準となる株式であり、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)オリエンタルコンサルタンツホールディングス社員持株会
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)東京都渋谷区本町3-12-1
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)パシフィックコンサルタンツ株式会社
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)東京都千代田区神田錦町3-22
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)住友不動産株式会社
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)東京都新宿区西新宿2-4-1
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)オリエンタル白石株式会社
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)東京都江東区豊洲5-6-52
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)株式会社三井住友銀行
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)東京都千代田区丸の内1-1-2
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)平野利一
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)栃木県宇都宮市
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)日本生命保険相互会社
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)東京都千代田区丸の内1-6-6
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)第一生命保険株式会社
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)東京都千代田区有楽町1-13-1
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)明治安田生命保険相互会社
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)東京都千代田区丸の内2-1-1
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)光通信KK投資事業有限責任組合
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)東京都豊島区西池袋1-4-10
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-

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 · 14 of 14 passed
balance sheet identityconsolidated 2025-09-30pass
balance sheet identityconsolidated 2026-03-31pass
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-09-30pass
statement vs summary · net assetsconsolidated 2026-03-31pass
statement vs summary · net income attributable to parentconsolidated 2024-10-01/2025-03-31pass
statement vs summary · net income attributable to parentconsolidated 2025-10-01/2026-03-31pass
statement vs summary · operating cash flowconsolidated 2024-10-01/2025-03-31pass
statement vs summary · operating cash flowconsolidated 2025-10-01/2026-03-31pass
statement vs summary · revenueconsolidated 2024-10-01/2025-03-31pass
statement vs summary · revenueconsolidated 2025-10-01/2026-03-31pass
statement vs summary · total assetsconsolidated 2025-09-30pass
statement vs summary · total assetsconsolidated 2026-03-31pass