ISOR Group
ActiveSummary
ISOR Group has been active since 1981 and the Belgian State Gazette contains no insolvency or warning signals. The 2025 annual accounts show equity of €1.2m and a net result of €277,521. Equity remains stable across the filed fiscal years (±0.6% per year). Its solvency ranks better than 50% of 1226 sector peers (fiscal year 2025). The computed 12-month bankruptcy probability is 0.6% (low).
Checked score
Score 2025
Axes · tick = 2024
Profitability81▼-4
Solvency67▲+25
Growth52=
Track record100
Bankruptcy probability, 12 months
0.6%
Low
0%0.5%1.5%4%10%≥ 25%
Credit up to €80,000 at 30 days acceptable
Liquidity ample (current ratio 1.62 against 1.12 in 2024; short-term debt: 57.6% and cash: 17.8% of total assets), but 57.9% of the assets are financed with debt.
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Signals
Seven signals. The signal on the left, the evidence on the right.
−lowers risk+raises risk○neutral
raises risk · Higher-failure-rate sector
In this sector companies fail more often than the Belgian average.
Gazette · bankruptcies per sector, NACE 81
Relative position
BE, all sectors
reference
Services to buildings and landscape activities (NACE 81)
about 79% more bankruptcies
← fewer bankruptcies
more bankruptcies →
lowers risk · Long track record
A company with a long track record statistically fails less often than a young one.
KBO · incorporation dateAge against the risk zone
lowers risk · Annual accounts: healthy financial profile
The latest annual accounts show a healthy profile in solvency, result and liquidity.
NBB · annual accounts 2025Solvency, return and age of the figures
Solvency
42.1%
Return on assets
9.9%
Age of the figures
9 mo
lowers risk · Growing equity
Reported equity is higher than in 2023 and did not fall compared with 2024. These amounts do not establish the cause of the change.
NBB · annual accounts 2025Equity per financial year
1819202122232425
2018 to 2025 · latest year €1.2m
neutral · Latest accounts filed on time
The financial year that closed on 31-12-2025 was due by 31-07-2026 and was filed on 11-06-2026, 50 days ahead of the deadline.
NBB · 10 filingsDeviation from the deadline
2025
50 d early
2024
28 d late
2023
8 d late
2022
47 d early
2021
12 d early
2020
44 d early
2019
3 d late
← before the deadline
after the deadline →
tick = median of all Belgian filingsring = median in the sector
This company filed its last 7 accounts on average 16 days before the deadline; the sector median for financial year 2024 is 1 day before the deadline, and 43% of the sector filed late.
Checked, nothing found (2)
neutral · The next deadline is still running
The next financial year closes on 31-12-2026 and is due by 31-07-2027. Nothing is late today. Usually files around 19 July (4 of the last 5 filed years within 38 days of that day).
Companies Code · seven monthsPosition in the running window
30-09-2026 today31-12-2026 close31-07-2027 deadline
History
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Financials · fiscal year 2025, abbreviated schema
Turnover
Not included in this filing
EBIT margin
Not included in this filing
Net result
€277,521▲ 18.4%
2024 · €234,434
Working capital
€1.0m▲ 464%
2024 · €178,214
Trend over the years
In euros
In per cent
Ratio
In full-time equivalents (FTE)
In euros
No line ticked in this group.
In per cent
No line ticked in this group.
Ratio
No line ticked in this group.
In full-time equivalents (FTE)
No line ticked in this group.
Untick a line to hide it. Point at a year (or use the arrow keys on the chart) for the exact figures; the table below gives them all.Sector: the middle half (P25 to P75) of NACE 81, Services to buildings and landscape activities, each year against the same schema; no band under 30 filings. 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 fiscal year before
favourable
unfavourable
Line20212022202320242025
Operating result€677,320▲ 3.4%€830,726▲ 22.6%€847,584▲ 2.0%€342,595▼ 59.6%€388,839▲ 13.5%
Net result€504,127above the sector's middle half▲ 3.4%€615,078above the sector's middle half▲ 22.0%€626,294above the sector's middle half▲ 1.8%€234,434above the sector's middle half▼ 62.6%€277,521above the sector's middle half▲ 18.4%
Equity€311,213within the sector's middle half▼ 0.3%€311,291within the sector's middle half=€312,584within the sector's middle half▲ 0.4%€317,019within the sector's middle half▲ 1.4%€1.2mabove the sector's middle half▲ 272%
Total assets€1.1mwithin the sector's middle half▲ 6.4%€1.2mwithin the sector's middle half▲ 12.7%€1.6mwithin the sector's middle half▲ 27.7%€1.9mwithin the sector's middle half▲ 19.0%€2.8mabove the sector's middle half▲ 50.9%
Debt€773,070▲ 9.3%€910,648▲ 17.8%€1.2m▲ 37.0%€1.5m▲ 23.4%€1.6m▲ 5.4%
Working capital€262,760within the sector's middle half▲ 0.2%€261,297within the sector's middle half▼ 0.6%€250,343within the sector's middle half▼ 4.2%€178,214within the sector's middle half▼ 28.8%€1.0mabove the sector's middle half▲ 464%
Solvency28.7%within the sector's middle half▼ 1.9pp25.5%within the sector's middle half▼ 3.2pp20.0%within the sector's middle half▼ 5.4pp17.1%below the sector's middle half▼ 3.0pp42.1%within the sector's middle half▲ 25.0pp
Current ratio1.35within the sector's middle half▼ 0.041.29within the sector's middle half▼ 0.061.20within the sector's middle half▼ 0.091.12within the sector's middle half▼ 0.091.62within the sector's middle half▲ 0.51
Return on assets (ROA)46.5%above the sector's middle half▼ 1.3pp50.3%above the sector's middle half▲ 3.8pp40.1%above the sector's middle half▼ 10.2pp12.6%above the sector's middle half▼ 27.5pp9.9%within the sector's middle half▼ 2.7pp
Staff (FTE)7.8within the sector's middle half▲ 5.4%8.2within the sector's middle half▲ 5.1%7.9within the sector's middle half▼ 3.7%8.2within the sector's middle half▲ 3.8%9.4within the sector's middle half▲ 14.6%
above
within
below
the middle half (P25 to P75) of NACE 81, Services to buildings and landscape activities, each year against the same schema; no band under 30 filings.
Why a figure moved sharply
- 2024 Net result -63% on 2023. The accounts now follow the abbreviated schema, last year the full schema.
Result per fiscal year
Operating resultNet result
The operating result recovers in 2025; 2025 is 13% above 2024.
Balance-sheet composition
2025 in colour, 2024 as the grey bar beneath
Assets €2.8m
Fixed assets
€182,964 ▲ 25.1%
Current assets
€2.6m ▲ 53.1%
Equity and liabilities €2.8m
Equity
€1.2m ▲ 272%
Debt
€1.6m ▲ 5.4%
Debt's share of the balance-sheet total falls from 82.9% to 57.9%. Equity and debt are higher.
Key figures and ratios
EBITDA
€422,634▲
2024 · €360,169
Cash flow
€311,316▲
2024 · €252,009
Debt to equity
1.38▼
2024 · 4.86
ROE
23.5%▼
2024 · 73.9%
Interest coverage
34.65▲
2024 · 11.88
Debt ≤ 1 year
€1.6m▲
2024 · €1.5m
Income taxes
€102,414▲
2024 · €87,225
Staff costs
€726,079▲
2024 · €572,352
Green means a favourable move, even when the figure itself falls: as with debt or debt to equity.
Peer companies
Historical observationOf the 31,371 companies that looked in July 2024 the way this one looks now, 0.5% went bankrupt within 24 months and 93% are still going.
- Micro
- 20 years or older
- solvency 30% or more
- a profit of 5% of the balance sheet or more
0.5%
went bankrupt
5.9%
stopped otherwise
93%
still going
A further 0.1% stopped, but we cannot tell whether within those 24 months.
For this company itself Checked computes a bankruptcy probability of 0.6% 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 497,340 companies of July 2024 its group's bankruptcy share. Expected: 1.6%; actually bankrupt within 24 months: 1.7%.
| 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% | 1.0% |
| 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% 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 31,371 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
| Line | 2021 | 2022 | 2023 | 2024 | 2025 | Change |
|---|---|---|---|---|---|---|
| Remuneration, social security and pensions62 | €346,307 | €444,098 | €572,862 | €572,352 | €726,079 | ▲ 26.9% |
| Depreciation of and write-downs on formation expenses, intangible and tangible fixed assets630 | €39,120 | €8,644 | €10,363 | €17,574 | €33,795 | ▲ 92.3% |
| Write-downs on stocks, contracts in progress and trade receivables: additions (reversals)631/4 | €19,013 | €8,497 | -€41,670 | €327,237 | €395,323 | ▲ 20.8% |
| Other operating charges640/8 | €31,751 | €21,561 | €66,379 | €56,734 | €63,010 | ▲ 11.1% |
| Gross operating margin9900 | €1.1m | €1.3m | €1.5m | €1.3m | €1.6m | ▲ 22.1% |
| Operating profit (loss)9901 | €677,320 | €830,726 | €847,584 | €342,595 | €388,839 | ▲ 13.5% |
| Financial income75/76B | €10,327 | €1,506 | €6,248 | €9,377 | €3,294 | ▼ 64.9% |
| Recurring financial income75 | €10,327 | €1,506 | €6,248 | €9,377 | €3,294 | ▼ 64.9% |
| Financial charges65/66B | €4,759 | €4,808 | €10,898 | €30,312 | €12,198 | ▼ 59.8% |
| Recurring financial charges65 | €4,759 | €4,808 | €10,898 | €30,312 | €12,198 | ▼ 59.8% |
| Profit (loss) for the period before taxes9903 | €682,888 | €827,424 | €842,934 | €321,659 | €379,935 | ▲ 18.1% |
| Income taxes67/77 | €178,761 | €212,345 | €216,641 | €87,225 | €102,414 | ▲ 17.4% |
| Profit (loss) for the period9904 | €504,127 | €615,078 | €626,294 | €234,434 | €277,521 | ▲ 18.4% |
| Profit (loss) for the period to be appropriated9905 | €504,127 | €615,078 | €626,294 | €234,434 | €277,521 | ▲ 18.4% |
| Line | 2021 | 2022 | 2023 | 2024 | 2025 | Change |
|---|---|---|---|---|---|---|
| Assets | ||||||
| Total assets20/58 | €1.1m | €1.2m | €1.6m | €1.9m | €2.8m | ▲ 50.9% |
| Fixed assets21/28 | €64,544 | €62,258 | €71,513 | €146,285 | €182,964 | ▲ 25.1% |
| Intangible fixed assets21 | - | - | €2,490 | €22,169 | €30,480 | ▲ 37.5% |
| Tangible fixed assets22/27 | €60,767 | €58,441 | €65,274 | €120,367 | €142,537 | ▲ 18.4% |
| Land and buildings22 | €28,865 | €28,865 | €28,865 | €28,865 | €28,865 | = |
| Plant, machinery and equipment23 | €4,168 | €3,239 | €21,628 | €34,673 | €47,547 | ▲ 37.1% |
| Furniture and vehicles24 | €27,734 | €21,257 | €14,781 | €56,830 | €61,021 | ▲ 7.4% |
| Leasing and similar rights25 | - | - | - | - | €1,064 | - |
| Other tangible fixed assets26 | - | - | - | - | €4,040 | - |
| Assets under construction and advance payments27 | - | €5,080 | - | - | - | - |
| Financial fixed assets28 | €3,778 | €3,817 | €3,749 | €3,749 | €9,947 | ▲ 165% |
| Current assets29/58 | €1.0m | €1.2m | €1.5m | €1.7m | €2.6m | ▲ 53.1% |
| Amounts receivable within one year40/41 | €545,308 | €718,544 | €1.2m | €1.4m | €2.1m | ▲ 52.9% |
| Trade receivables40 | €524,067 | €718,544 | €1.2m | €1.2m | €1.5m | ▲ 24.3% |
| Other amounts receivable41 | €21,242 | - | €3,739 | €145,271 | €571,040 | ▲ 293% |
| Cash at bank and in hand54/58 | €441,713 | €420,991 | €253,645 | €301,508 | €497,268 | ▲ 64.9% |
| Deferred charges and accrued income490/1 | €32,717 | €20,147 | €23,739 | €46,613 | €37,694 | ▼ 19.1% |
| Equity and liabilities | ||||||
| Total equity and liabilities10/49 | €1.1m | €1.2m | €1.6m | €1.9m | €2.8m | ▲ 50.9% |
| Equity10/15 | €311,213 | €311,291 | €312,584 | €317,019 | €1.2m | ▲ 272% |
| Contributions10/11 | €62,000 | €62,000 | €62,000 | €62,000 | €136,368 | ▲ 120% |
| Capital10 | €62,000 | €62,000 | €62,000 | €62,000 | €136,368 | ▲ 120% |
| Issued capital100 | €62,000 | €62,000 | €62,000 | €62,000 | €136,368 | ▲ 120% |
| Reserves13 | €6,200 | €6,200 | €6,200 | €6,200 | €515,743 | ▲ 8,218% |
| Non-distributable reserves130/1 | €6,200 | €6,200 | €6,200 | €6,200 | €13,637 | ▲ 120% |
| Legal reserve130 | €6,200 | €6,200 | €6,200 | €6,200 | €13,637 | ▲ 120% |
| Distributable reserves133 | - | - | - | - | €502,106 | - |
| Profit (loss) carried forward14 | €243,013 | €243,091 | €244,384 | €248,819 | €526,340 | ▲ 112% |
| Amounts payable17/49 | €773,070 | €910,648 | €1.2m | €1.5m | €1.6m | ▲ 5.4% |
| Amounts payable after more than one year17 | €16,068 | €11,290 | €6,476 | €1,625 | - | - |
| Financial debts170/4 | €16,068 | €11,290 | €6,476 | €1,625 | - | - |
| Amounts payable within one year42/48 | €756,978 | €898,384 | €1.2m | €1.5m | €1.6m | ▲ 5.2% |
| Current portion of amounts payable after more than one year42 | €31,400 | €10,121 | €10,231 | €10,267 | €7,118 | ▼ 30.7% |
| Financial debts43 | - | - | - | - | €15,814 | - |
| Credit institutions430/8 | - | - | - | - | €15,814 | - |
| Trade debts44 | €183,238 | €206,630 | €292,272 | €476,185 | €512,983 | ▲ 7.7% |
| Suppliers440/4 | €183,238 | €206,630 | €292,272 | €476,185 | €512,983 | ▲ 7.7% |
| Advances received on contracts in progress46 | €157 | - | €7,900 | - | - | - |
| Taxes, remuneration and social security45 | €37,182 | €66,671 | €67,948 | €60,785 | €63,658 | ▲ 4.7% |
| Taxes450/3 | €1,822 | €14,891 | €6,668 | - | €4,161 | - |
| Remuneration and social security454/9 | €35,360 | €51,780 | €61,280 | €60,785 | €59,497 | ▼ 2.1% |
| Other amounts payable47/48 | €505,000 | €614,963 | €859,963 | €984,963 | €1.0m | ▲ 2.8% |
| Accrued charges and deferred income492/3 | €24 | €974 | €2,795 | €5,855 | €10,320 | ▲ 76.2% |
| Line | 2021 | 2022 | 2023 | 2024 | 2025 | Change |
|---|---|---|---|---|---|---|
| Profit (loss) for the period9904 | €504,127 | €615,078 | €626,294 | €234,434 | €277,521 | ▲ 18.4% |
| + Depreciation and write-downs630 | €39,120 | €8,644 | €10,363 | €17,574 | €33,795 | ▲ 92.3% |
| Operating cash flow (approximation) | €543,247 | €623,722 | €636,657 | €252,009 | €311,316 | ▲ 23.5% |
| Investment in fixed assets (approximation) | - | -€6,358 | -€19,618 | -€92,347 | -€70,474 | ▲ 23.7% |
| Change in cash | - | -€20,721 | -€167,346 | €47,864 | €195,759 | ▲ 309% |
Simplified and derived: a Belgian filing has no cash-flow statement, so these rows come from the income statement and the balance-sheet moves.
Timeline · acts, filings and financial milestones
Next filing, fiscal year 2026, expected by
2026
11-06
NBB filing
Annual accounts filed
fiscal year 2025 · abbreviated schema
2025
31-12
Financial
Equity above €1mEq €1.2m ▲272%
8 profitable years in a row build equity to €1.2m.
28-08
NBB filing
Annual accounts filed
fiscal year 2024 · abbreviated schema · 28 days late
2024
31-12
Financial
Weakest financial yearnet €234,434 ▼62.6%
Net result drops to €234,434, the lowest in the series; recovery starts the following year.
08-08
NBB filing
Annual accounts filed
fiscal year 2023 · full schema · 8 days late
2023
31-12
Financial
Highest result since 2018net €626,294 ▲1.8%
Operating result €847,584, net result €626,294, both a record.
14-06
NBB filing
Annual accounts filed
fiscal year 2022 · full schema
2022
19-07
NBB filing
Annual accounts filed
fiscal year 2021 · full schema
2021
17-06
NBB filing
Annual accounts filed
fiscal year 2020 · full schema
2020
03-08
NBB filing
Annual accounts filed
fiscal year 2019 · full schema · 3 days late
2019
20-06
NBB filing
Annual accounts filed
fiscal year 2018 · full schema
2018
05-07
NBB filing
Annual accounts filed
fiscal year 2017 · full schema
2017
22-06
NBB filing
Annual accounts filed
fiscal year 2016 · micro schema
Financial milestoneNBB filingFinancial milestones sit on the fiscal year-end date, not the filing date.
0 of 12 acts read
About the unread acts
We know of 12 Belgian State Gazette acts for this company. None of them has been read yet: what they contain is neither established nor disproved here.
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Directors · office · real estate
Directors
12 acts for this company are in the Belgian State Gazette, of which we have read 0. We have therefore not extracted its directors from those acts yet.
Location & real-estate footprint
Registered office, Zaventem · 3 establishment units since 1981
Ground area
2.6 ha
Building footprint
8,834 m²
Volume, LiDAR
17,262 m³
4 parcels, Flanders, Wallonia · tallest building 19.0 m, ±5 floors. Linked by address, not a title deed.
3 establishment units
Leuvensesteenweg 325, 1932 Zaventem
since 19812.019.409.346
LA MAISON DU NETTOYAGE SA
since 20132.218.334.669
LA MAISON DU NETTOYAGE SA
since 20152.255.884.557
4 parcels
Flanders
2
(50%)
Wallonia
2
(50%)
| Parcel (capakey) | Region | Area | Buildings | Height / fl. |
|---|---|---|---|---|
| 25782C0669/00L000 | Wallonia | 1.2 ha | 1 · 7,329 m² | - |
| 23078A0288/00C000 | Flanders | 1.0 ha | 1 · 954 m² | 19.0 m · 5 fl. |
| 23057B0001/00D000 | Flanders | 2,873 m² | 1 · 33 m² | 2.4 m · 1 fl. |
| 57031B0361/00E000 | Wallonia | 1,693 m² | 1 · 518 m² | 4.3 m · 1 fl. |
Linked by address, not proof of ownership
Good to know
4 of 4 parcels with an exact address match; the rest are indicative.
Linked through address data, this is not proof of ownership.
Structure & network
Owners and holdings
1 ownerChain of control
- HOLBORN INVEST
- ISOR Group
Highest known parent: HOLBORN INVEST. The sources do not say who stands above it.
Owners 1
- HOLBORN INVESTparent100%
Holdings 0
No holding stated in the accounts, acts or LEI register we read.
According to the annual accounts of the other companies, the acts in the Belgian Gazette and the LEI register. The register of ultimate beneficial owners (UBO) is not public: who ultimately stands behind a natural person or a foreign parent is not stated here. A company that does not fill in these statements, or need not, is missing.
Connections & network
No current directors or connected companies found in the register.
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Of 7,362 companies in sector 81210 we hold annual accounts for 2,743. 795 are within a factor 10 of this equity. The 5 above are the closest to it. See the whole sector
Identification & contact
Identification
Legal formPublic limited company
Founded24-09-1981
Fiscal year end31-12
Activities, NACEBEL 2025
81210General cleaning of buildings
43350Other building finishing work
81220Other building cleaning and industrial cleaning
Contact
E-mail
o.ghenne@isor.beZaventem
Phone
0475 90 45 20Tournai
E-invoicing
Reachable via Peppol
Peppol ID
0208:0421880912
Registered
06-02-2026
If you follow this company, Checked tells you the day it leaves the Peppol register.
Register as of 30 September 2026 · Peppol Directory
Scores and ratios are computed by Checked and are not a credit decision.