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I.S.T.

Active
Private limited companyfounded 1989active for 37 yearsAtealaan(HRT) 34A, 2200 Herentals, BelgiumKBO/BCE: BE 0437.912.537
Summary

I.S.T. has been active since 1989 and the Belgian Official Gazette contains no insolvency or warning signals. The 2025 annual accounts show equity of €83,031 and a net result of €153,738, of which €225,466 non-recurring income. Equity has been shrinking by about 9.4% per year since 2018. Its solvency ranks better than 24% of 34,946 sector peers (NACE 43, financial year 2025). The computed 12-month bankruptcy probability is 0.4% (very low).

Overview

Official details

Source: KBO
Status
Active since 05-07-1989 Normal situation
Registered office
24 active companies are registered at this address Source: KBO register, as of 2 November 2026.
Activity
Installation of electric heating, air conditioning, cooling and ventilation NACE 43222and 3 others
Establishment unit
2.276.343.342 2200 Herentals, since 02-01-2017
Financial year end
31 December
Peppol
Reachable since 31-03-2025

Board and ownership

Board
  • Scheltjens RenéDirector · since 23-11-2023

Financial position

83 Excellent Checked score 2025
Bankruptcy probabilitywithin 12 months
0.4%
Annual accounts 2025
Gross margin
€198,978
Turnover
≈ €620,000
estimated
Profit
€153,738
Equity
€83,031
▼ 54.7%
Total assets
€374,734
▲ 51.8%
Filed on 17-04-2026, 105 days before the deadline
Score breakdownraises risk1 change of registered office in 24 monthsSector: Specialised construction activities (NACE 43)Equity €83,031 (22.2% of total assets)lowers riskLiquidity: current ratio 1.29, cash €346,071Show the evidence

Checked score

Score 2025
83 / 100
Excellent
Probability in this band: under 0.55%
Financially stronger than 45% of micro companies in specialised construction (NACE 43)
Financial strength · tick: 2024
Strong
Solvency 47-52
equity 22.2% of total assets
Liquidity 58+10
short-term debt 77.4% · cash 92.4%
Profitability 100+100
return on assets 41.0%
Bankruptcy probability within 12 months
0.4% Very low
0%0.5%1.5%4%10%≥ 25%

About 4 in 1,000 comparable companies go bankrupt within 12 months (an estimate).

Sector median 0.7% (47,674 companies, NACE 43, micro)
Last 24 months 12-2024: 1.3% 01-2025: 1.3%● unchanged vs 12-2024 02-2025: 1.3%● unchanged vs 01-2025 03-2025: 1.3%● unchanged vs 02-2025 04-2025: 0.6%▼ -0.7 percentage points vs 03-2025 05-2025: 0.6%● unchanged vs 04-2025 06-2025: 0.6%● unchanged vs 05-2025 07-2025: 0.7%▲ +0.1 percentage points vs 06-2025 08-2025: 0.9%▲ +0.2 percentage points vs 07-2025 09-2025: 0.9%● unchanged vs 08-2025 10-2025: 0.9%● unchanged vs 09-2025 11-2025: 0.9%● unchanged vs 10-2025 12-2025: 0.9%● unchanged vs 11-2025 01-2026: 0.9%● unchanged vs 12-2025 02-2026: 1.9%▲ +1.0 percentage point vs 01-2026 03-2026: 1.9%● unchanged vs 02-2026 04-2026: 2.1%▲ +0.2 percentage points vs 03-2026highest value 05-2026: 0.4%▼ -1.7 percentage points vs 04-2026lowest value 06-2026: 0.4%● unchanged vs 05-2026lowest value 07-2026: 0.4%● unchanged vs 06-2026lowest value 08-2026: 0.4%● unchanged vs 07-2026lowest value 09-2026: 0.4%● unchanged vs 08-2026lowest value 10-2026: 0.4%● unchanged vs 09-2026lowest value 11-2026: 0.4%● unchanged vs 10-2026lowest value
Credit of up to €6,000 on 30-day terms is acceptable
Liquidity is tight, with a current ratio of 1.29 (0.8 in 2024), below the usual 1.5. Short-term debt is 77.4% and cash 92.4% of total assets. 77.8% of the assets are financed with debt and provisions.
Calculation

The band follows from the bankruptcy probability. 10 more points roughly halve it.

75-100 Excellent under 0.55%
60-74 Healthy 0.55% to 1.5%
45-59 Fair 1.5% to 4.2%
25-44 Weak 4.2% to 15.0%
0-24 Critical over 15.0%

Where the company stands within its band depends half on the bankruptcy probability and half on how it does against its sector peers (NACE 43, micro). It does better than 24% of them on solvency, 55% on liquidity, 92% on profitability and 8% on growth.

The bankruptcy probability was computed on 01-11-2026 by the bankruptcy model of 2 October 2026, which learns from Belgian bankruptcies and reads the registers, the annual accounts and the Belgian Official Gazette.

Some facts cap the score, however low the probability. With negative or zero equity, a heavy loss, a special status in the KBO, one missing filing or accounts filed more than 90 days late, the score is Fair at most (59). With two missing filings, it is Weak at most (44). During a judicial reorganisation or at the company's end (bankruptcy, dissolution, liquidation), it is Critical at most (24).

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Signals

Six signals.
lowers riskraises riskneutral
raises risk · 1 change of registered office in 24 months
Belgian Official Gazette
lowers risk · Liquidity: current ratio 1.29, cash €346,071
NBB · annual accounts
raises risk · Sector: Specialised construction activities (NACE 43)
KBO
raises risk · Equity €83,031 (22.2% of total assets)
NBB · annual accounts
raises risk · Weak solvency compared with the sector
Solvency (equity / total assets) is in the sector's weakest quartile: better than 24% of 34946 sector peers (2025).
NBB · sector comparison
Position among 34946 sector peers
Solvency
better than 24%
← weakest strongest →
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 17-04-2026, 105 days ahead of the deadline.
NBB · 10 filings
Deviation from the deadline
2025
105 days early
2024
12 days early
2023
13 days early
2022
18 days early
2021
40 days early
2020
44 days early
2019
8 days early
← before the deadline after the deadline →
tick = median of all Belgian filingsring = median in the sector

The company filed its last 7 accounts on average 34 days before the deadline. In the sector (NACE 43), the median for financial year 2024 was 1 day before the deadline, and 43% of those companies filed late.

Searched, nothing found (2)
neutral · Next filing not due yet
The next financial year closes on 31-12-2026 and is due by 31-07-2027. Nothing is late today. The company usually files around 13 July (4 of the last 5 accounts filed within 30 days either side of that date).
Companies Code · seven months
Where today falls in the filing period
02-11-2026 today31-12-2026 year end31-07-2027 deadline
neutral · No strike-offs in the KBO publications
That holds for every publication since 2021.
KBO publications

Key points

  • Positive: Back in profit in 2025after a loss of €71,030 in 2024 €153,738 View
  • Positive: Higher net result than 95% of companies in specialised constructionsector median €10,221 · 34,933 companies €153,738 View
  • Positive: Filed on time since financial year 2018accounts within the deadline every year 8 years View

Recent changes

  1. · Gazette deed Registered office moved from Zandhoven to Herentals
  2. · Gazette deed Appointment: SCHELTJENS Renatus (director)
  3. · Gazette deed Registered office moved from Bouwel to Pulle
All 18 events

Comparable companies

These companies have the same main activity as I.S.T.: installation of electric heating, air conditioning, cooling and ventilation (NACE 43222). They are comparable in size and age: total assets between €351,000 and €432,000, founded between 1986 and 1991.

CompanyTotal assetsGross margin
I.S.T. Herentals€374,734€198,978
GEENS LEON Bonheiden€393,437€176,347
MARTIN-VAN EPPERZEEL Mechelen€431,741€235,268
SANICENTRAL PLUS Aarschot€368,282€179,585
WARMTE-TECHNIEK Beringen€351,351€203,897
AIR - TECH INDUSTRIES Tinlot€390,618€163,346
LUCIEN BODSON Aywaille€363,435€163,877
Full comparison

Key facts about I.S.T.

What is the company number of I.S.T.?
The company number of I.S.T. is 0437.912.537. The VAT number is the same number with BE in front: BE 0437.912.537.
Where is I.S.T. based?
The registered office is at Atealaan(HRT) 34A, 2200 Herentals.Company details
What does I.S.T. do?
According to the KBO register, the main activity is installation of electric heating, air conditioning, cooling and ventilation (NACE 43222).
What is the legal form of I.S.T.?
The legal form of I.S.T. is Private limited company (BV).
When was I.S.T. founded?
I.S.T. was founded on 05-07-1989.
Is I.S.T. still active?
Yes, I.S.T. is an active enterprise in the KBO register.
How many employees does I.S.T. have?
I.S.T. had an average of 0.1 full-time equivalents in financial year 2020, according to the filed annual accounts.Financials
What is the turnover of I.S.T.?
The turnover in financial year 2025 is ≈ €620,000. This figure is estimated from the gross margin of €198,978 and 87 comparable companies (NACE 432). It probably lies between €490,000 and €750,000.
Is I.S.T. profitable?
In financial year 2025, I.S.T. made a profit of €153,738.
Where can I find the annual accounts of I.S.T.?
I.S.T. filed 36 annual accounts with the National Bank of Belgium, the latest for financial year 2025.
When are the next annual accounts of I.S.T. due?
I.S.T. must file the annual accounts for financial year 2026 by 31-07-2027.Timeline

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