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ONSEA

Active
Private limited companyfounded 1987active for 38 yearsVaartstraat 268, 2520 Ranst, BelgiumKBO/BCE: BE 0432.789.749
Summary

The annual accounts of ONSEA for financial year 2025 show a net loss of 68% of total assets and of 51% of the equity at the start of that year. The 2025 annual accounts show equity of €32,564 and a net result of -€34,213. The figures fluctuate too strongly year-on-year for a reliable trend projection. Its solvency ranks better than 70% of 34,747 sector peers (NACE 43, financial year 2025). The company has been active since 1987 and the Belgian Official Gazette contains no insolvency or warning signals. The computed 12-month bankruptcy probability is 1.1% (low).

Financials · financial year 2025, micro format

2025 annual accounts filed late (19 days) Filed on 19 August 2026, deadline 31 July 2026 (7 months after the close on 31 December 2025, Companies Code art. 3:10). Source: NBB, 2026-00406556.

Equity
€32,564▼ 51.2%
2024 · €66,777
Total assets
€50,480▼ 27.9%
2024 · €70,020
Net result
-€34,213▲ 5.2%
2024 · -€36,108
Working capital
€31,040▼ 51.7%
2024 · €64,293
Trend over the years

2021 to 2025, 5 financial years 2018 to 2025, 8 financial years

The operating result stays negative: a loss of €34,138 in 2025 against €35,720 in 2024; the loss shrinks.

What the company sold each financial year and what was left of it. A loss stands below the zero line.

Operating result-€34,138 2025 Net result-€34,213 2025

Use the arrow keys on the chart for the figures per year.

Sector: the middle half of NACE 43, Specialised construction activities: a quarter of companies sit below it, a quarter above. Each year compared with accounts in the same format, and only where there are at least 30. Dashed line: the median. Available for Net result, Equity, Total assets, Working capital, Solvency, Current ratio, Return on assets (ROA), Staff (FTE).

Every figure with its change against the financial year before
favourable unfavourable
Line20182019202020212022202320242025
Operating result-€97,905-€61,597€233,361▲ 279%€49,709▼ 78.7%-€84,667-€52,735▲ 37.7%-€35,720▲ 32.3%-€34,138▲ 4.4%
Net result-€100,942-€42,910€212,617above the sector's middle half▲ 395%€37,388above the sector's middle half▼ 82.4%-€86,191below the sector's middle half-€53,125below the sector's middle half▲ 38.4%-€36,108below the sector's middle half▲ 32.0%-€34,213below the sector's middle half▲ 5.2%
Equity-€50,714--€7,804▲ 84.6%€204,813above the sector's middle half€242,201above the sector's middle half▲ 18.3%€156,010above the sector's middle half▼ 35.6%€102,885within the sector's middle half▼ 34.1%€66,777within the sector's middle half▼ 35.1%€32,564within the sector's middle half▼ 51.2%
Total assets€445,072-€838,903▲ 88.5%€705,452above the sector's middle half▼ 15.9%€249,505within the sector's middle half▼ 64.6%€201,283within the sector's middle half▼ 19.3%€141,518within the sector's middle half▼ 29.7%€70,020within the sector's middle half▼ 50.5%€50,480below the sector's middle half▼ 27.9%
Debt€495,786-€846,707▲ 70.8%€500,639▼ 40.9%€7,304▼ 98.5%€45,274▲ 520%€38,633▼ 14.7%€3,244▼ 91.6%€17,917▲ 452%
Working capital-€101,512--€47,425▲ 53.3%€174,489above the sector's middle half€212,332above the sector's middle half▲ 21.7%€134,934above the sector's middle half▼ 36.5%€85,467within the sector's middle half▼ 36.7%€64,293within the sector's middle half▼ 24.8%€31,040within the sector's middle half▼ 51.7%
Solvency-11.4%--0.9%▲ 10.5pp29.0%within the sector's middle half▲ 30.0pp97.1%above the sector's middle half▲ 68.0pp77.5%above the sector's middle half▼ 19.6pp72.7%above the sector's middle half▼ 4.8pp95.4%above the sector's middle half▲ 22.7pp64.5%within the sector's middle half▼ 30.9pp
Current ratio0.79-0.94▲ 0.151.35within the sector's middle half▲ 0.4030.07above the sector's middle half▲ 28.7211.49above the sector's middle half▼ 18.577.08above the sector's middle half▼ 4.4120.87above the sector's middle half▲ 13.792.73within the sector's middle half▼ 18.14
Return on assets (ROA)-22.7%-5.1%▲ 27.8pp30.1%above the sector's middle half▲ 25.0pp15.0%within the sector's middle half▼ 15.2pp-42.8%below the sector's middle half▼ 57.8pp-37.5%below the sector's middle half▲ 5.3pp-51.6%below the sector's middle half▼ 14.0pp-67.8%below the sector's middle half▼ 16.2pp
Staff (FTE)4.4-3.3▼ 25.0%3.3above the sector's middle half=3.5▲ 6.1%2▼ 42.9%1.4▼ 30.0%
above within below the middle half of NACE 43, Specialised construction activities: a quarter of companies sit below it, a quarter above. Each year compared with accounts in the same format, and only where there are at least 30.
Turnover and EBIT margin not published: the micro format does not require them.
Balance-sheet composition
2025 in colour, 2024 as the grey bar beneath
Assets €50,480
Fixed assets €1,524 ▼ 38.8%
Current assets €48,956 ▼ 27.5%
Equity and liabilities €50,480
Equity €32,564 ▼ 51.2%
Debt €17,917 ▲ 452%
Debt's share of the balance-sheet total rises from 4.6% to 35.5%. Equity is lower and debt is higher.
Key figures and ratios
2025 value · change against 2024
EBITDA
-€33,170▲
2024 · -€34,752
Cash flow
-€33,245▲
2024 · -€35,140
Debt to equity
0.55▲
2024 · 0.05
ROE
-105.1%▼
2024 · -54.1%
Interest coverage
-430.89▼
2024 · -99.20
Debt ≤ 1 year
€17,917▲
2024 · €3,235
Staff costs
€293▲
2024 · €244
Green means a favourable move, even when the figure itself falls: as with debt or debt to equity.

Peer companies

Historical observation

Of the 5,831 companies that looked in July 2024 the way this one looks now, 1.7% went bankrupt within 24 months and 84.5% are still going.

  • Micro
  • 20 years or older
  • solvency 30% or more
  • a loss of 10% of the balance sheet or more
1.7% went bankrupt
13.4% stopped otherwise
84.5% still going

A further 0.4% stopped, but we cannot tell whether within those 24 months.

For this company itself Checked computes a bankruptcy probability of 1.1% over twelve months; the group does not contradict it.

How reliable is this rule?

Tested on the year before, without using that year itself: the groups of July 2023 gave each of the 497,445 companies of July 2024 its group's bankruptcy share. Expected: 1.6%; actually bankrupt within 24 months: 1.7%.

The companies in ten equal groups, from lowest to highest expected share.
Group Expected Actual
1 0.2% 0.2%
2 0.3% 0.5%
3 0.5% 0.6%
4 0.7% 0.8%
5 0.9% 0.9%
6 1.3% 1.5%
7 1.6% 1.8%
8 1.8% 1.8%
9 3.0% 3.1%
10 5.6% 6.2%

The rule ranks well: a company that went bankrupt got a higher share than one that kept going in 74.5% of comparisons. The level follows the economy: in a year with more bankruptcies, the actual share is higher than the year before.

An observation about 5,831 comparable companies, not a prediction for this company. The sector does not count: the register keeps no sector for companies that stopped, so it would make the outcome look better than it was.

Annual accounts
Filed annual accounts As filed with the NBB · 2025 against 2024 · 41 lines
Balance sheet Code20242025
Assets
Total assets20/58€70,020€50,480▼
Fixed assets21/28€2,492€1,524▼
Tangible fixed assets22/27€2,492€1,524▼
Plant, machinery and equipment23€2,492€1,524▼
Current assets29/58€67,528€48,956▼
Amounts receivable within one year40/41€55,998€45,051▼
Trade receivables40€55,461€45,051▼
Other amounts receivable41€538-
Cash at bank and in hand54/58€11,530€3,905▼
Equity and liabilities
Total equity and liabilities10/49€70,020€50,480▼
Equity10/15€66,777€32,564▼
Contributions10/11€18,592€18,592=
Reserves13€344,195€344,195=
Non-distributable reserves130/1€1,859€1,859=
Reserves not available under the articles1311€1,859€1,859=
Distributable reserves133€342,335€342,335=
Profit (loss) carried forward14-€296,010-€330,223▼
Amounts payable17/49€3,244€17,917▲
Amounts payable within one year42/48€3,235€17,917▲
Trade debts44€2,014€1,608▼
Suppliers440/4€2,014€1,608▼
Taxes, remuneration and social security45€1,221€184▼
Taxes450/3€1,221€184▼
Other amounts payable47/48-€16,125
Accrued charges and deferred income492/3€8-
Income statement Code20242025
Remuneration, social security and pensions62€244€293▲
Depreciation of and write-downs on formation expenses, intangible and tangible fixed assets630€968€968=
Other operating charges640/8€11,552€1,759▼
Non-recurring operating charges66A€1,115-
Gross operating margin9900-€21,840-€31,119▼
Operating profit (loss)9901-€35,720-€34,138▲
Financial income75/76B€41€2▼
Recurring financial income75€41€2▼
Financial charges65/66B€350€77▼
Recurring financial charges65€350€77▼
Profit (loss) for the period before taxes9903-€36,030-€34,213▲
Income taxes67/77€78-
Profit (loss) for the period9904-€36,108-€34,213▲
Profit (loss) for the period to be appropriated9905-€36,108-€34,213▲
Appropriation of the result
Profit (loss) to be appropriated9906-€296,010-€330,223▼
Profit (loss) brought forward from the previous period14P-€259,902-€296,010▼

The notes to these accounts (6 items: statements of assets and debts, cost breakdowns, rights and commitments) are not shown here.

Line20182019202020212022202320242025Change
Non-recurring operating income76A---€4,723-----
Remuneration, social security and pensions62---€135,658€32,094€8,238€244€293▲ 19.8%
Depreciation of and write-downs on formation expenses, intangible and tangible fixed assets630€24,190€9,445€5,246€1,197€4,513€11,490€968€968=
Other operating charges640/8---€8,512€30,925€710€11,552€1,759▼ 84.8%
Non-recurring operating charges66A----€7,824-€1,115--
Gross operating margin9900€189,226€90,654€360,323€195,075-€9,312-€32,297-€21,840-€31,119▼ 42.5%
Operating profit (loss)9901-€97,905€61,597€233,361€49,709-€84,667-€52,735-€35,720-€34,138▲ 4.4%
Financial income75/76B---€1,285€37€2€41€2▼ 96.0%
Recurring financial income75€1€199-€1,285€37€2€41€2▼ 96.0%
Financial charges65/66B---€10,497€1,290€69€350€77▼ 78.0%
Recurring financial charges65€2,150€18,148€24,167€10,497€1,290€69€350€77▼ 78.0%
Profit (loss) for the period before taxes9903-€100,055€43,648€212,967€40,497-€85,920-€52,803-€36,030-€34,213▲ 5.0%
Income taxes67/77€887€738€350€3,109€271€322€78--
Profit (loss) for the period9904-€100,942€42,910€212,617€37,388-€86,191-€53,125-€36,108-€34,213▲ 5.2%
Profit (loss) for the period to be appropriated9905-€100,942€42,910€212,617€37,388-€86,191-€53,125-€36,108-€34,213▲ 5.2%
Line20182019202020212022202320242025Change
Assets
Total assets20/58€445,072€838,903€705,452€249,505€201,283€141,518€70,020€50,480▼ 27.9%
Fixed assets21/28€62,563€39,621€30,324€29,869€53,493€42,003€2,492€1,524▼ 38.8%
Tangible fixed assets22/27€53,492€30,089€20,672€20,205€53,493€42,003€2,492€1,524▼ 38.8%
Plant, machinery and equipment23---€2,284€4,428€3,460€2,492€1,524▼ 38.8%
Furniture and vehicles24---€17,921-----
Leasing and similar rights25----€49,065€38,543---
Financial fixed assets28€9,071€9,531€9,652€9,664-----
Current assets29/58€382,509€799,283€675,128€219,636€147,791€99,515€67,528€48,956▼ 27.5%
Stocks and contracts in progress3€321,144€756,547€602,497€17,500-----
Stocks30/36---€17,500-----
Amounts receivable within one year40/41€17,899€1,736€45,708€9,746€74,617€76,500€55,998€45,051▼ 19.5%
Trade receivables40---€8,000€73,236€72,918€55,461€45,051▼ 18.8%
Other amounts receivable41---€1,746€1,382€3,582€538--
Cash at bank and in hand54/58€43,465€40,999€26,923€192,391€72,766€17,943€11,530€3,905▼ 66.1%
Deferred charges and accrued income490/1----€408€5,072---
Equity and liabilities
Total equity and liabilities10/49€445,072€838,903€705,452€249,505€201,283€141,518€70,020€50,480▼ 27.9%
Equity10/15-€50,714-€7,804€204,813€242,201€156,010€102,885€66,777€32,564▼ 51.2%
Contributions10/11€18,592€18,592-€18,592€18,592€18,592€18,592€18,592=
Reserves13€344,195€344,195€344,195€344,195€344,195€344,195€344,195€344,195=
Non-distributable reserves130/1---€1,859€1,859€1,859€1,859€1,859=
Reserves not available under the articles1311---€1,859€1,859€1,859€1,859€1,859=
Distributable reserves133---€342,335€342,335€342,335€342,335€342,335=
Profit (loss) carried forward14-€413,500-€370,591-€157,974-€120,585-€206,777-€259,902-€296,010-€330,223▼ 11.6%
Amounts payable17/49€495,786€846,707€500,639€7,304€45,274€38,633€3,244€17,917▲ 452%
Amounts payable after more than one year17€11,765---€32,417€24,585---
Financial debts170/4----€32,417€24,585---
Amounts payable within one year42/48€484,021€846,707€500,639€7,304€12,857€14,048€3,235€17,917▲ 454%
Current portion of amounts payable after more than one year42----€7,604€7,604---
Trade debts44€65,481€20,498€74,936€3,578€2,979€2,349€2,014€1,608▼ 20.2%
Suppliers440/4---€3,578€2,979€2,349€2,014€1,608▼ 20.2%
Taxes, remuneration and social security45---€3,726€2,274€4,095€1,221€184▼ 85.0%
Taxes450/3---€376€647€4,095€1,221€184▼ 85.0%
Remuneration and social security454/9---€3,350€1,627----
Other amounts payable47/48-------€16,125-
Accrued charges and deferred income492/3------€8--
Line20182019202020212022202320242025Change
Profit (loss) for the period9904-€100,942€42,910€212,617€37,388-€86,191-€53,125-€36,108-€34,213▲ 5.2%
+ Depreciation and write-downs630€24,190€9,445€5,246€1,197€4,513€11,490€968€968=
Operating cash flow (approximation)-€76,752€52,355€217,863€38,585-€81,678-€41,635-€35,140-€33,245▲ 5.4%
Investment in fixed assets (approximation)-€13,498€4,051-€742-€28,137€0€38,543€0▼ 100%
Change in cash--€2,466-€14,077€165,468-€119,625-€54,822-€6,413-€7,625▼ 18.9%

Simplified and derived: a Belgian filing has no cash-flow statement, so these rows come from the income statement and the balance-sheet moves.

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Latest 10 of 38 filings with the National Bank
Financial year Type Filed Reference
31-12-2025 micro format 19-08-2026 2026-00406556
31-12-2024 micro format 31-07-2025 2025-00350838
31-12-2023 micro format 04-07-2024 2024-00216048
31-12-2022 micro format 29-08-2023 2023-00382510
31-12-2021 micro format 09-06-2022 2022-20055919
31-12-2020 micro format 06-07-2021 2021-31800400
31-12-2019 micro format 13-07-2020 2020-29900211
31-12-2018 micro format 03-07-2019 2019-28900163
31-12-2017 micro format 21-06-2018 2018-21800147
31-12-2016 micro format 10-08-2017 2017-42800284

Show all 38 filings

Similar companies · same sector, comparable size

Of the 15,130 active companies whose main activity is other specialised construction activities (NACE 43990), figures are known for 7,447. 5,748 are within a factor 10 of this equity. These 5 are the closest to it. See the whole sector

Public contracts: No European public contracts awarded found since October 2016. Contracts below the EU thresholds are not in TED.