Annual report

Period2025-01-01 → 2025-12-31
Filed2026-03-30
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 146
MetricValuePeriodScopeSource row
Revenue¥12.1bn2025-01-01 → 2025-12-31Cons.Net sales
Revenue¥11.9bn2024-01-01 → 2024-12-31Cons.Net sales
Revenue¥9.6bn2023-01-01 → 2023-12-31vCons.Net sales (5-year summary)
Revenue¥8.9bn2022-01-01 → 2022-12-31vCons.Net sales (5-year summary)
Revenue¥8.9bn2021-01-01 → 2021-12-31vCons.Net sales (5-year summary)
Operating income¥815m2025-01-01 → 2025-12-31Cons.Operating income
Operating income¥1.1bn2024-01-01 → 2024-12-31Cons.Operating income
Ordinary income¥864m2025-01-01 → 2025-12-31Cons.Ordinary income
Ordinary income¥1.2bn2024-01-01 → 2024-12-31Cons.Ordinary income
Ordinary income¥63m2023-01-01 → 2023-12-31vCons.Ordinary income loss (5-year summary)
Ordinary income−¥251m2022-01-01 → 2022-12-31vCons.Ordinary income loss (5-year summary)
Ordinary income¥330m2021-01-01 → 2021-12-31vCons.Ordinary income loss (5-year summary)
Profit before tax¥869m2025-01-01 → 2025-12-31Cons.Income before income taxes
Profit before tax¥1.2bn2024-01-01 → 2024-12-31Cons.Income before income taxes
Net income (owners)¥598m2025-01-01 → 2025-12-31Cons.Profit loss attributable to owners of parent
Net income (owners)¥892m2024-01-01 → 2024-12-31Cons.Profit loss attributable to owners of parent
Net income (owners)¥137m2023-01-01 → 2023-12-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)−¥358m2022-01-01 → 2022-12-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥201m2021-01-01 → 2021-12-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income¥598m2025-01-01 → 2025-12-31Cons.Profit loss
Net income¥892m2024-01-01 → 2024-12-31Cons.Profit loss
Total assets¥8.2bnat 2025-12-31Cons.Assets
Total assets¥7.0bnat 2024-12-31Cons.Assets
Total assets¥7.6bnat 2023-12-31vCons.Total assets (5-year summary)
Total assets¥7.2bnat 2022-12-31vCons.Total assets (5-year summary)
Total assets¥7.3bnat 2021-12-31vCons.Total assets (5-year summary)
Total liabilities¥2.3bnat 2025-12-31Cons.Liabilities
Total liabilities¥2.0bnat 2024-12-31Cons.Liabilities
Net assets / equity¥5.9bnat 2025-12-31Cons.Net assets
Net assets / equity¥5.0bnat 2024-12-31Cons.Net assets
Net assets / equity¥5.7bnat 2023-12-31vCons.Net assets
Net assets / equity¥5.4bnat 2022-12-31vCons.Net assets (5-year summary)
Net assets / equity¥5.8bnat 2021-12-31vCons.Net assets (5-year summary)
Cash and deposits¥3.2bnat 2025-12-31Cons.Cash and deposits
Cash and deposits¥3.3bnat 2024-12-31Cons.Cash and deposits
Cash & equivalents¥3.2bnat 2025-12-31Cons.Cash and cash equivalents
Cash & equivalents¥3.2bnat 2024-12-31Cons.Cash and cash equivalents
Cash & equivalents¥3.4bnat 2023-12-31vCons.Cash and cash equivalents
Cash & equivalents¥3.9bnat 2022-12-31vCons.Cash and cash equivalents (5-year summary)
Cash & equivalents¥3.9bnat 2021-12-31vCons.Cash and cash equivalents (5-year summary)
Operating cash flow¥229m2025-01-01 → 2025-12-31Cons.Net cash provided by used in operating activities
Operating cash flow¥1.1bn2024-01-01 → 2024-12-31Cons.Net cash provided by used in operating activities
Operating cash flow−¥141m2023-01-01 → 2023-12-31vCons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥161m2022-01-01 → 2022-12-31vCons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow−¥200m2021-01-01 → 2021-12-31vCons.Net cash provided by used in operating activities (5-year summary)
Investing cash flow−¥109m2025-01-01 → 2025-12-31Cons.Net cash provided by used in investment activities
Investing cash flow−¥29m2024-01-01 → 2024-12-31Cons.Net cash provided by used in investment activities
Investing cash flow−¥233m2023-01-01 → 2023-12-31vCons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥90m2022-01-01 → 2022-12-31vCons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥137m2021-01-01 → 2021-12-31vCons.Net cash provided by used in investing activities (5-year summary)
Financing cash flow−¥112m2025-01-01 → 2025-12-31Cons.Net cash provided by used in financing activities
Financing cash flow−¥1.3bn2024-01-01 → 2024-12-31Cons.Net cash provided by used in financing activities
Financing cash flow−¥112m2023-01-01 → 2023-12-31vCons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥112m2022-01-01 → 2022-12-31vCons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥111m2021-01-01 → 2021-12-31vCons.Net cash provided by used in financing activities (5-year summary)
EPS (basic)¥31.182025-01-01 → 2025-12-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥45.742024-01-01 → 2024-12-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥6.72023-01-01 → 2023-12-31vCons.Basic earnings loss per share (5-year summary)
EPS (basic)¥-17.562022-01-01 → 2022-12-31vCons.Basic earnings loss per share (5-year summary)
EPS (basic)¥9.862021-01-01 → 2021-12-31vCons.Basic earnings loss per share (5-year summary)
Net assets per share¥299.79at 2025-12-31Cons.Net assets per share (5-year summary)
Net assets per share¥262.63at 2024-12-31Cons.Net assets per share (5-year summary)
Net assets per share¥277.56at 2023-12-31vCons.Net assets per share (5-year summary)
Net assets per share¥265.36at 2022-12-31vCons.Net assets per share (5-year summary)
Net assets per share¥283.73at 2021-12-31vCons.Net assets per share (5-year summary)
Equity ratio72.1%at 2025-12-31Cons.Equity to asset ratio (5-year summary)
Equity ratio71.4%at 2024-12-31Cons.Equity to asset ratio (5-year summary)
Equity ratio74.1%at 2023-12-31vCons.Equity to asset ratio (5-year summary)
Equity ratio75.0%at 2022-12-31vCons.Equity to asset ratio (5-year summary)
Equity ratio79.3%at 2021-12-31vCons.Equity to asset ratio (5-year summary)
ROE11.0%2025-01-01 → 2025-12-31Cons.Rate of return on equity (5-year summary)
ROE16.8%2024-01-01 → 2024-12-31Cons.Rate of return on equity (5-year summary)
ROE2.5%2023-01-01 → 2023-12-31vCons.Rate of return on equity (5-year summary)
ROE3.5%2021-01-01 → 2021-12-31vCons.Rate of return on equity (5-year summary)
Employees549at 2025-12-31Cons.Number of employees
Employees523at 2024-12-31Cons.Number of employees
Employees511at 2023-12-31vCons.Number of employees
Employees503at 2022-12-31vCons.Number of employees
Employees490at 2021-12-31vCons.Number of employees
Revenue¥11.6bn2025-01-01 → 2025-12-31StandaloneNet sales
Revenue¥11.3bn2024-01-01 → 2024-12-31StandaloneNet sales
Revenue¥9.3bn2023-01-01 → 2023-12-31vStandaloneNet sales (5-year summary)
Revenue¥8.7bn2022-01-01 → 2022-12-31vStandaloneNet sales (5-year summary)
Revenue¥8.7bn2021-01-01 → 2021-12-31vStandaloneNet sales (5-year summary)
Operating income¥722m2025-01-01 → 2025-12-31StandaloneOperating income
Operating income¥869m2024-01-01 → 2024-12-31StandaloneOperating income
Ordinary income¥779m2025-01-01 → 2025-12-31StandaloneOrdinary income
Ordinary income¥927m2024-01-01 → 2024-12-31StandaloneOrdinary income
Ordinary income−¥23m2023-01-01 → 2023-12-31vStandaloneOrdinary income loss (5-year summary)
Ordinary income−¥171m2022-01-01 → 2022-12-31vStandaloneOrdinary income loss (5-year summary)
Ordinary income¥294m2021-01-01 → 2021-12-31vStandaloneOrdinary income loss (5-year summary)
Profit before tax¥785m2025-01-01 → 2025-12-31StandaloneIncome before income taxes
Profit before tax¥919m2024-01-01 → 2024-12-31StandaloneIncome before income taxes
Net income¥546m2025-01-01 → 2025-12-31StandaloneProfit loss
Net income¥698m2024-01-01 → 2024-12-31StandaloneProfit loss
Net income¥55m2023-01-01 → 2023-12-31vStandaloneNet income loss (5-year summary)
Net income−¥246m2022-01-01 → 2022-12-31vStandaloneNet income loss (5-year summary)
Net income¥176m2021-01-01 → 2021-12-31vStandaloneNet income loss (5-year summary)
Total assets¥7.6bnat 2025-12-31StandaloneAssets
Total assets¥6.7bnat 2024-12-31StandaloneAssets
Total assets¥7.4bnat 2023-12-31vStandaloneTotal assets (5-year summary)
Total assets¥7.0bnat 2022-12-31vStandaloneTotal assets (5-year summary)
Total assets¥7.0bnat 2021-12-31vStandaloneTotal assets (5-year summary)
Total liabilities¥2.1bnat 2025-12-31StandaloneLiabilities
Total liabilities¥2.0bnat 2024-12-31StandaloneLiabilities
Net assets / equity¥5.6bnat 2025-12-31StandaloneNet assets
Net assets / equity¥4.7bnat 2024-12-31StandaloneNet assets
Net assets / equity¥5.6bnat 2023-12-31vStandaloneNet assets
Net assets / equity¥5.4bnat 2022-12-31vStandaloneNet assets (5-year summary)
Net assets / equity¥5.7bnat 2021-12-31vStandaloneNet assets (5-year summary)
Cash and deposits¥2.7bnat 2025-12-31StandaloneCash and deposits
Cash and deposits¥3.0bnat 2024-12-31StandaloneCash and deposits
EPS (basic)¥28.472025-01-01 → 2025-12-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥35.792024-01-01 → 2024-12-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥2.712023-01-01 → 2023-12-31vStandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥-12.062022-01-01 → 2022-12-31vStandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥8.632021-01-01 → 2021-12-31vStandaloneBasic earnings loss per share (5-year summary)
Dividend per share¥5.52025-01-01 → 2025-12-31StandaloneDividend paid per share (5-year summary)
Dividend per share¥5.52024-01-01 → 2024-12-31StandaloneDividend paid per share (5-year summary)
Dividend per share¥5.52023-01-01 → 2023-12-31vStandaloneDividend paid per share (5-year summary)
Dividend per share¥5.52022-01-01 → 2022-12-31vStandaloneDividend paid per share (5-year summary)
Dividend per share¥5.52021-01-01 → 2021-12-31vStandaloneDividend paid per share (5-year summary)
Net assets per share¥282.48at 2025-12-31StandaloneNet assets per share (5-year summary)
Net assets per share¥247.84at 2024-12-31StandaloneNet assets per share (5-year summary)
Net assets per share¥273.44at 2023-12-31vStandaloneNet assets per share (5-year summary)
Net assets per share¥265.47at 2022-12-31vStandaloneNet assets per share (5-year summary)
Net assets per share¥278.47at 2021-12-31vStandaloneNet assets per share (5-year summary)
Equity ratio72.9%at 2025-12-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio70.3%at 2024-12-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio75.5%at 2023-12-31vStandaloneEquity to asset ratio (5-year summary)
Equity ratio77.3%at 2022-12-31vStandaloneEquity to asset ratio (5-year summary)
Equity ratio80.6%at 2021-12-31vStandaloneEquity to asset ratio (5-year summary)
ROE10.6%2025-01-01 → 2025-12-31StandaloneRate of return on equity (5-year summary)
ROE13.6%2024-01-01 → 2024-12-31StandaloneRate of return on equity (5-year summary)
ROE1.0%2023-01-01 → 2023-12-31vStandaloneRate of return on equity (5-year summary)
ROE3.1%2021-01-01 → 2021-12-31vStandaloneRate of return on equity (5-year summary)
Shares issued20,000,000at 2025-12-31StandaloneTotal number of issued shares (5-year summary)
Shares issued20,000,000at 2024-12-31StandaloneTotal number of issued shares (5-year summary)
Shares issued21,460,800at 2023-12-31vStandaloneTotal number of issued shares (5-year summary)
Shares issued21,460,800at 2022-12-31vStandaloneTotal number of issued shares (5-year summary)
Shares issued21,460,800at 2021-12-31vStandaloneTotal number of issued shares (5-year summary)
Employees512at 2025-12-31StandaloneNumber of employees
Employees504at 2024-12-31StandaloneNumber of employees
Employees493at 2023-12-31vStandaloneNumber of employees
Employees486at 2022-12-31vStandaloneNumber of employees
Employees472at 2021-12-31vStandaloneNumber of employees

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 · 44
SegmentItemPeriodValue
Embedded Software Businessreportable segmentcapex2025-01-01 → 2025-12-31¥592m
Embedded Software Businessreportable segmentdepreciation2025-01-01 → 2025-12-31¥86m
Embedded Software Businessreportable segmentemployeesat 2025-12-31453 pure
Embedded Software Businessreportable segmentrevenue2025-01-01 → 2025-12-31¥11.5bn
Embedded Software Businessreportable segmentrevenue external2025-01-01 → 2025-12-31¥11.5bn
Embedded Software Businessreportable segmentsegment assetsat 2025-12-31¥5.4bn
Embedded Software Businessreportable segmentsegment profit2025-01-01 → 2025-12-31¥809m
Sensing Solution Businessreportable segmentcapex2025-01-01 → 2025-12-31¥403,000
Sensing Solution Businessreportable segmentdepreciation2025-01-01 → 2025-12-31¥7m
Sensing Solution Businessreportable segmentemployeesat 2025-12-3124 pure
Sensing Solution Businessreportable segmentrevenue2025-01-01 → 2025-12-31¥604m
Sensing Solution Businessreportable segmentrevenue external2025-01-01 → 2025-12-31¥604m
Sensing Solution Businessreportable segmentsegment assetsat 2025-12-31¥344m
Sensing Solution Businessreportable segmentsegment profit2025-01-01 → 2025-12-31¥6m
—segment totalcapex2025-01-01 → 2025-12-31¥593m
—segment totaldepreciation2025-01-01 → 2025-12-31¥93m
—segment totalemployeesat 2025-12-31477 pure
—segment totalrevenue2025-01-01 → 2025-12-31¥12.1bn
—segment totalrevenue external2025-01-01 → 2025-12-31¥12.1bn
—segment totalsegment assetsat 2025-12-31¥5.7bn
—segment totalsegment profit2025-01-01 → 2025-12-31¥815m
Embedded Software Businessreportable segmentcapex2024-01-01 → 2024-12-31¥63m
Embedded Software Businessreportable segmentdepreciation2024-01-01 → 2024-12-31¥84m
Embedded Software Businessreportable segmentrevenue2024-01-01 → 2024-12-31¥11.1bn
Embedded Software Businessreportable segmentrevenue external2024-01-01 → 2024-12-31¥11.1bn
Embedded Software Businessreportable segmentrevenue intersegment2024-01-01 → 2024-12-31¥9m
Embedded Software Businessreportable segmentsegment assetsat 2024-12-31¥3.4bn
Embedded Software Businessreportable segmentsegment profit2024-01-01 → 2024-12-31¥910m
Sensing Solution Businessreportable segmentcapex2024-01-01 → 2024-12-31¥9m
Sensing Solution Businessreportable segmentdepreciation2024-01-01 → 2024-12-31¥10m
Sensing Solution Businessreportable segmentrevenue2024-01-01 → 2024-12-31¥602m
Sensing Solution Businessreportable segmentrevenue external2024-01-01 → 2024-12-31¥602m
Sensing Solution Businessreportable segmentsegment assetsat 2024-12-31¥296m
Sensing Solution Businessreportable segmentsegment profit2024-01-01 → 2024-12-31¥34m
—segment totalcapex2024-01-01 → 2024-12-31¥72m
—segment totaldepreciation2024-01-01 → 2024-12-31¥94m
—segment totalrevenue2024-01-01 → 2024-12-31¥11.7bn
—segment totalrevenue external2024-01-01 → 2024-12-31¥11.7bn
—segment totalrevenue intersegment2024-01-01 → 2024-12-31¥9m
—segment totalsegment assetsat 2024-12-31¥3.7bn
—segment totalsegment profit2024-01-01 → 2024-12-31¥945m
Embedded Software Businessreportable segmentemployeesat 2025-12-31416 pure
Sensing Solution Businessreportable segmentemployeesat 2025-12-3124 pure
—segment totalemployeesat 2025-12-31440 pure

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

All source rows · 1,417
ItemContextValueUnit
Independent auditors report consolidated (text)FilingDateInstantText · Plus
Audit firm1 consolidatedFilingDateInstant
Original text (Japanese)EY新日本有限責任監査法人
Cpa1 audit firm1 consolidatedFilingDateInstant
Original text (Japanese)島 藤 章 太 郎
Cpa2 audit firm1 consolidatedFilingDateInstant
Original text (Japanese)城 市 武 志
Key audit matters consolidated (text)FilingDateInstantText · Plus
Overview kam consolidated (text)FilingDateInstantText · Plus
Short description kam consolidatedFilingDateInstant_Row1Member
Original text (Japanese)イーソル株式会社の組込みソフトウェア事業に関する売上高の実在性及び期間帰属の適切性
Description including reason kam consolidated (text)FilingDateInstant_Row1MemberText · Plus
Reference kam consolidatedFilingDateInstant_Row1MemberText · Plus
Auditors response kam consolidated (text)FilingDateInstant_Row1MemberText · Plus
Other information consolidated (text)FilingDateInstantText · Plus
Fee related information consolidated (text)FilingDateInstantText · Plus
Independent auditors report non consolidated (text)FilingDateInstantText · Plus
Audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)EY新日本有限責任監査法人
Cpa1 audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)島 藤 章 太 郎
Cpa2 audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)城 市 武 志
Key audit matters non consolidated (text)FilingDateInstantText · Plus
Overview kam non consolidated (text)FilingDateInstantText · Plus
Short description kam non consolidatedFilingDateInstant_Row1Member
Original text (Japanese)イーソル株式会社の組込みソフトウェア事業に関する売上高の実在性及び期間帰属の適切性
Same as kam for consolidated fskam non consolidated (text)FilingDateInstant_Row1MemberText · Plus
Other information non consolidated (text)FilingDateInstantText · Plus
Fee related information non consolidated (text)FilingDateInstantText · Plus
Number of submissionFilingDateInstant1
Net sales (5-year summary)Prior4YearDuration8937872000JPY
Net sales (5-year summary)Prior3YearDuration8872408000JPY
Net sales (5-year summary)Prior2YearDuration9628105000JPY
Net sales (5-year summary)Prior1YearDuration11908042000JPY
Net sales (5-year summary)CurrentYearDuration12129822000JPY
Ordinary income loss (5-year summary)Prior4YearDuration330325000JPY
Ordinary income loss (5-year summary)Prior3YearDuration-250617000JPY
Ordinary income loss (5-year summary)Prior2YearDuration62856000JPY
Ordinary income loss (5-year summary)Prior1YearDuration1163511000JPY
Ordinary income loss (5-year summary)CurrentYearDuration863967000JPY
Profit loss attributable to owners of parent (5-year summary)Prior4YearDuration200702000JPY
Profit loss attributable to owners of parent (5-year summary)Prior3YearDuration-357830000JPY
Profit loss attributable to owners of parent (5-year summary)Prior2YearDuration136720000JPY
Profit loss attributable to owners of parent (5-year summary)Prior1YearDuration892392000JPY
Profit loss attributable to owners of parent (5-year summary)CurrentYearDuration598072000JPY
Comprehensive income (5-year summary)Prior4YearDuration130612000JPY
Comprehensive income (5-year summary)Prior3YearDuration-269424000JPY
Comprehensive income (5-year summary)Prior2YearDuration353903000JPY
Comprehensive income (5-year summary)Prior1YearDuration601650000JPY
Comprehensive income (5-year summary)CurrentYearDuration611353000JPY
Net assets (5-year summary)Prior4YearInstant5777761000JPY
Net assets (5-year summary)Prior3YearInstant5409299000JPY
Net assets (5-year summary)Prior2YearInstant5661525000JPY
Net assets (5-year summary)Prior1YearInstant4988446000JPY
Net assets (5-year summary)CurrentYearInstant5906004000JPY
Total assets (5-year summary)Prior4YearInstant7284029000JPY
Total assets (5-year summary)Prior3YearInstant7213735000JPY

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 · 24 of 24 passed
balance sheet identityconsolidated 2024-12-31pass
balance sheet identityconsolidated 2025-12-31pass
balance sheet identitynon_consolidated 2024-12-31pass rounding
balance sheet identitynon_consolidated 2025-12-31pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2023-12-31pass
statement vs summary · net assetsconsolidated 2024-12-31pass
statement vs summary · net assetsconsolidated 2025-12-31pass
statement vs summary · net assetsnon_consolidated 2023-12-31pass
statement vs summary · net assetsnon_consolidated 2024-12-31pass
statement vs summary · net assetsnon_consolidated 2025-12-31pass
statement vs summary · net income attributable to parentconsolidated 2024-01-01/2024-12-31pass
statement vs summary · net income attributable to parentconsolidated 2025-01-01/2025-12-31pass
statement vs summary · operating cash flowconsolidated 2024-01-01/2024-12-31pass
statement vs summary · operating cash flowconsolidated 2025-01-01/2025-12-31pass
statement vs summary · revenueconsolidated 2024-01-01/2024-12-31pass
statement vs summary · revenueconsolidated 2025-01-01/2025-12-31pass
statement vs summary · revenuenon_consolidated 2024-01-01/2024-12-31pass
statement vs summary · revenuenon_consolidated 2025-01-01/2025-12-31pass
statement vs summary · total assetsconsolidated 2024-12-31pass
statement vs summary · total assetsconsolidated 2025-12-31pass
statement vs summary · total assetsnon_consolidated 2024-12-31pass
statement vs summary · total assetsnon_consolidated 2025-12-31pass