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HARMONIC WAVES

Active
Private limited company (pre-2019)founded 201115 yrs activeDennenlaan 33, 2840 Rumst, BelgiumKBO/BCE: BE 0836.784.257
Summary

HARMONIC WAVES has been active since 2011 and the Belgian State Gazette contains no insolvency or warning signals. The 2024 annual accounts show equity of €77,046 and a net result of €47,590. The figures fluctuate too strongly year-on-year for a reliable trend projection. Its solvency ranks better than 44% of 20786 sector peers (fiscal year 2024). The computed 12-month bankruptcy probability is 0.2% (very low).

Checked score

Score 2024
Axes · tick = 2023
Profitability100▲+24
Solvency82▲+17
Growth78=
Track record100
Bankruptcy probability, 12 months
0.2% Very low
0%0.5%1.5%4%10%≥ 25%
Credit up to €6,000 at 30 days acceptable
Liquidity ample (current ratio 2.24 against 1.66 in 2023; short-term debt: 41.8% and cash: 20.7% of total assets), and 42.6% of the assets are financed with debt.
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Signals

Four signals. The signal on the left, the evidence on the right.
−lowers risk○neutral
lowers risk · Lower-failure-rate sector
In this sector companies fail less often than the Belgian average.
Gazette · bankruptcies per sector, NACE 62
Relative position
BE, all sectors
reference
Computer programming, consultancy and related activities (NACE 62)
about 64% fewer 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 date
Age against the risk zone
highest failure risk from 2 to 8 years 15 years 0 20 y
lowers risk · Growing equity
Reported equity is higher than in 2022 and did not fall compared with 2023. These amounts do not establish the cause of the change.
NBB · annual accounts 2024
Equity per financial year
18192021222324
2018 to 2024 · latest year €77,046
neutral · Filed after the deadline
The financial year that closed on 31-12-2024 was due by 31-07-2025 and was filed on 17-09-2025, 48 days later. For context: 47% of the Belgian market files late and the whole 1-to-90-day band measures 2.0% abnormal legal state against a 1.66% average. We show this as a fact and do not score it.
NBB · 10 filings
Deviation from the deadline
2025
not confirmed
2024
48 d late
2023
292 d late
2022
91 d late
2021
1 d late
2020
26 d late
2019
11 d early
← before the deadline after the deadline →
tick = median of all Belgian filingsring = median in the sector

This company filed its last 6 accounts on average 75 days after the deadline; the sector median for financial year 2024 is 9 days before the deadline, and 33% of the sector filed late.

Checked, nothing found (1)
neutral · No strike-offs in the KBO publications
We found no ex-officio strike-off or cessation. Our series starts in 2021 and has gaps, so this is not a confirmation that there is nothing.
KBO publications · our coverage

History

On 7 June 2011, HARMONIC WAVES was incorporated.1 Total assets went from EUR 345,151 in 2018 to EUR 134,270 in 2024.2

  1. 1Crossroads Bank for Enterprises
  2. 2National Bank, annual accounts 2018 and 2024

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Financials · fiscal year 2024, micro schema

Equity
€77,046▲ 162%
2023 · €29,456
Total assets
€134,270▲ 82.7%
2023 · €73,505
Net result
€47,590▲ 1,097%
2023 · €3,975
Working capital
€69,708▲ 172%
2023 · €25,665
Trend over the years

Click a name to add, emphasise or remove a line.Band: the middle half (P25 to P75) of NACE 62, Computer programming, consultancy and related activities, each year against the same schema; no band under 30 filings. Dashed line: the median.

Every figure with its change against the fiscal year before
favourable unfavourable
Line20202021202220232024
Operating result€27,277€32,023▲ 17.4%€21,930▼ 31.5%€5,552▼ 74.7%€70,193▲ 1,164%
Net result€25,237within the sector's middle half€25,130within the sector's middle half▼ 0.4%€14,718within the sector's middle half▼ 41.4%€3,975within the sector's middle half▼ 73.0%€47,590within the sector's middle half▲ 1,097%
Equity-€14,367below the sector's middle half▲ 63.7%€10,763below the sector's middle half€25,481below the sector's middle half▲ 137%€29,456within the sector's middle half▲ 15.6%€77,046within the sector's middle half▲ 162%
Total assets€72,276within the sector's middle half▼ 9.2%€67,644below the sector's middle half▼ 6.4%€73,629within the sector's middle half▲ 8.8%€73,505within the sector's middle half▼ 0.2%€134,270within the sector's middle half▲ 82.7%
Debt€86,643▼ 27.3%€56,881▼ 34.3%€48,148▼ 15.4%€44,049▼ 8.5%€57,224▲ 29.9%
Working capital-€23,006below the sector's middle half▲ 59.1%€3,092below the sector's middle half€18,515within the sector's middle half▲ 499%€25,665within the sector's middle half▲ 38.6%€69,708within the sector's middle half▲ 172%
Solvency-19.9%below the sector's middle half▲ 29.9pp15.9%below the sector's middle half▲ 35.8pp34.6%within the sector's middle half▲ 18.7pp40.1%within the sector's middle half▲ 5.5pp57.4%within the sector's middle half▲ 17.3pp
Current ratio0.53below the sector's middle half▲ 0.251.10below the sector's middle half▲ 0.571.56within the sector's middle half▲ 0.461.66within the sector's middle half▲ 0.092.24within the sector's middle half▲ 0.59
Return on assets (ROA)34.9%above the sector's middle half▲ 97.5pp37.1%above the sector's middle half▲ 2.2pp20.0%within the sector's middle half▼ 17.2pp5.4%within the sector's middle half▼ 14.6pp35.4%within the sector's middle half▲ 30.0pp
above within below the middle half (P25 to P75) of NACE 62, Computer programming, consultancy and related activities, each year against the same schema; no band under 30 filings.
Turnover and EBIT margin not published: the micro schema does not require them.
Result per fiscal year
Operating resultNet result
€0€20,000€40,000€60,000€80,000Operating result 2020: €27,277€27,277Net result 2020: €25,237€25,237Operating result 2021: €32,023€32,023Net result 2021: €25,130€25,130Operating result 2022: €21,930€21,930Net result 2022: €14,718€14,718Operating result 2023: €5,552€5,552Net result 2023: €3,975€3,975Operating result 2024: €70,193€70,193Net result 2024: €47,590€47,59020202021202220232024€0€20,000€40,000€60,000€80,000Operating result 2022: €21,930€21,900Net result 2022: €14,718€14,700Operating result 2023: €5,552€5,550Net result 2023: €3,975€3,970Operating result 2024: €70,193€70,200Net result 2024: €47,590€47,600202220232024
The operating result recovers in 2024; 2024 is 1,164% above 2023 and is the highest result in the available series.
Balance-sheet composition
2024 in colour, 2023 as the grey bar beneath
Assets €134,270
Fixed assets €8,438 ▼ 3.2%
Current assets €125,832 ▲ 94.2%
Equity and liabilities €134,270
Equity €77,046 ▲ 162%
Debt €57,224 ▲ 29.9%
Debt's share of the balance-sheet total falls from 59.9% to 42.6%. Equity and debt are higher.
Key figures and ratios
2024 value · change against 2023
EBITDA
€73,544▲
2023 · €21,589
Cash flow
€50,941▲
2023 · €20,011
Debt to equity
0.74▼
2023 · 1.50
ROE
61.8%▲
2023 · 13.5%
Interest coverage
76.41▲
2023 · 20.27
Debt ≤ 1 year
€56,124▲
2023 · €39,119
Debt > 1 year
€0▼
2023 · €3,829
Income taxes
€25,262▲
2023 · €2,098
Green means a favourable move, even when the figure itself falls: as with debt or debt to equity.

Peer companies

Historical observation

Of the 34,679 companies that looked in July 2024 the way this one looks now, 0.6% went bankrupt within 24 months and 95% are still going.

  • Micro
  • 10 to 20 years old
  • solvency 30% or more
  • a profit of 5% of the balance sheet or more
0.6% went bankrupt
3.8% stopped otherwise
95% still going

A further 0.2% stopped, but we cannot tell whether within those 24 months.

For this company itself Checked computes a bankruptcy probability of 0.2% 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 497,662 companies of July 2024 its group's bankruptcy share. Expected: 1.5%; actually bankrupt within 24 months: 1.6%.

The companies in ten equal groups, from lowest to highest expected share.
Group Expected Actual
1 0.2% 0.2%
2 0.3% 0.4%
3 0.5% 0.5%
4 0.6% 0.7%
5 0.8% 0.9%
6 1.2% 1.3%
7 1.5% 1.7%
8 1.7% 1.7%
9 2.7% 2.8%
10 5.3% 5.7%

The rule ranks well: a company that went bankrupt got a higher share than one that kept going in 75% 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 34,679 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 · 2024 against 2023 · 48 lines
Balance sheet Code20232024
Assets
Total assets20/58€73,505€134,270▲
Fixed assets21/28€8,720€8,438▼
Tangible fixed assets22/27€5,720€5,438▼
Plant, machinery and equipment23€906€604▼
Furniture and vehicles24€4,814€4,834▲
Financial fixed assets28€3,000€3,000=
Current assets29/58€64,784€125,832▲
Amounts receivable within one year40/41€55,105€96,508▲
Trade receivables40€14,304€16,093▲
Other amounts receivable41€40,801€80,415▲
Current investments50/53€523€180▼
Cash at bank and in hand54/58€8,010€27,784▲
Deferred charges and accrued income490/1€1,146€1,360▲
Equity and liabilities
Total equity and liabilities10/49€73,505€134,270▲
Equity10/15€29,456€77,046▲
Contributions10/11€6,200€6,200=
Reserves13€5,835€53,425▲
Non-distributable reserves130/1€1,860€1,860=
Reserves not available under the articles1311€1,860€1,860=
Distributable reserves133€3,975€51,565▲
Profit (loss) carried forward14€17,421€17,421=
Amounts payable17/49€44,049€57,224▲
Amounts payable after more than one year17€3,829€0▼
Financial debts170/4€3,829€0▼
Amounts payable within one year42/48€39,119€56,124▲
Current portion of amounts payable after more than one year42€11,363€3,829▼
Trade debts44€5,872€963▼
Suppliers440/4€5,872€963▼
Taxes, remuneration and social security45€21,466€50,918▲
Taxes450/3€21,466€50,918▲
Other amounts payable47/48€418€413▼
Accrued charges and deferred income492/3€1,100€1,100=
Income statement Code20232024
Depreciation of and write-downs on formation expenses, intangible and tangible fixed assets630€16,037€3,351▼
Other operating charges640/8€1,815€810▼
Gross operating margin9900€23,404€74,354▲
Operating profit (loss)9901€5,552€70,193▲
Financial income75/76B€1,585€3,621▲
Recurring financial income75€1,585€3,621▲
Financial charges65/66B€1,065€962▼
Recurring financial charges65€1,065€962▼
Profit (loss) for the period before taxes9903€6,073€72,852▲
Income taxes67/77€2,098€25,262▲
Profit (loss) for the period9904€3,975€47,590▲
Profit (loss) for the period to be appropriated9905€3,975€47,590▲
Appropriation of the result
Profit (loss) to be appropriated9906€21,396€65,011▲
Profit (loss) brought forward from the previous period14P€17,421€17,421=
Transfer to equity691/2€3,975€47,590▲
To other reserves6921€3,975€47,590▲

The notes to these accounts (12 items: statements of assets and debts, cost breakdowns, rights and commitments) are not shown here.

Line20202021202220232024Change
Depreciation of and write-downs on formation expenses, intangible and tangible fixed assets630€14,259€15,148€15,300€16,037€3,351▼ 79.1%
Other operating charges640/8-€3,542€2,859€1,815€810▼ 55.4%
Gross operating margin9900€43,453€50,714€40,089€23,404€74,354▲ 218%
Operating profit (loss)9901€27,277€32,023€21,930€5,552€70,193▲ 1,164%
Financial income75/76B-€4€1,017€1,585€3,621▲ 128%
Recurring financial income75€3€4€1,017€1,585€3,621▲ 128%
Financial charges65/66B-€1,410€1,341€1,065€962▼ 9.6%
Recurring financial charges65€1,397€1,410€1,341€1,065€962▼ 9.6%
Profit (loss) for the period before taxes9903€25,883€30,618€21,606€6,073€72,852▲ 1,100%
Income taxes67/77€646€5,488€6,887€2,098€25,262▲ 1,104%
Profit (loss) for the period9904€25,237€25,130€14,718€3,975€47,590▲ 1,097%
Profit (loss) for the period to be appropriated9905€25,237€25,130€14,718€3,975€47,590▲ 1,097%
Line20202021202220232024Change
Assets
Total assets20/58€72,276€67,644€73,629€73,505€134,270▲ 82.7%
Fixed assets21/28€46,007€34,042€22,159€8,720€8,438▼ 3.2%
Tangible fixed assets22/27€43,007€31,042€19,159€5,720€5,438▼ 4.9%
Plant, machinery and equipment23-€1,808€1,357€906€604▼ 33.3%
Furniture and vehicles24-€29,234€17,802€4,814€4,834▲ 0.4%
Financial fixed assets28€3,000€3,000€3,000€3,000€3,000=
Current assets29/58€26,269€33,603€51,470€64,784€125,832▲ 94.2%
Amounts receivable within one year40/41€6,540€19,957€45,477€55,105€96,508▲ 75.1%
Trade receivables40-€9,443€25,779€14,304€16,093▲ 12.5%
Other amounts receivable41-€10,515€19,698€40,801€80,415▲ 97.1%
Current investments50/53---€523€180▼ 65.6%
Cash at bank and in hand54/58€18,704€12,524€4,864€8,010€27,784▲ 247%
Deferred charges and accrued income490/1-€1,121€1,129€1,146€1,360▲ 18.6%
Equity and liabilities
Total equity and liabilities10/49€72,276€67,644€73,629€73,505€134,270▲ 82.7%
Equity10/15-€14,367€10,763€25,481€29,456€77,046▲ 162%
Contributions10/11-€6,200€6,200€6,200€6,200=
Reserves13€1,860€1,860€1,860€5,835€53,425▲ 816%
Non-distributable reserves130/1-€1,860€1,860€1,860€1,860=
Reserves not available under the articles1311-€1,860€1,860€1,860€1,860=
Distributable reserves133---€3,975€51,565▲ 1,197%
Profit (loss) carried forward14-€22,427€2,703€17,421€17,421€17,421=
Amounts payable17/49€86,643€56,881€48,148€44,049€57,224▲ 29.9%
Amounts payable after more than one year17€37,368€26,371€15,193€3,829€0▼ 100%
Financial debts170/4-€26,371€15,193€3,829€0▼ 100%
Amounts payable within one year42/48€49,275€30,510€32,955€39,119€56,124▲ 43.5%
Current portion of amounts payable after more than one year42-€10,997€11,178€11,363€3,829▼ 66.3%
Trade debts44€7,349€6,281€2,360€5,872€963▼ 83.6%
Suppliers440/4-€6,281€2,360€5,872€963▼ 83.6%
Taxes, remuneration and social security45-€11,789€19,120€21,466€50,918▲ 137%
Taxes450/3-€11,789€19,120€21,466€50,918▲ 137%
Other amounts payable47/48-€1,444€296€418€413▼ 1.1%
Accrued charges and deferred income492/3---€1,100€1,100=
Line20202021202220232024Change
Profit (loss) for the period9904€25,237€25,130€14,718€3,975€47,590▲ 1,097%
+ Depreciation and write-downs630€14,259€15,148€15,300€16,037€3,351▼ 79.1%
Operating cash flow (approximation)€39,496€40,278€30,019€20,011€50,941▲ 155%
Investment in fixed assets (approximation)--€3,183-€3,417-€2,598-€3,069▼ 18.1%
Change in cash--€6,180-€7,660€3,146€19,774▲ 528%

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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Timeline · acts, filings and financial milestones

2025
17-09
NBB filing Annual accounts filed
fiscal year 2024 · micro schema · 48 days late
19-05
NBB filing Annual accounts filed
fiscal year 2023 · micro schema · 292 days late
2024
31-12
Financial Highest result since 2018net €47,590 ▲1,097%
Operating result €70,193, net result €47,590, both a record.
2023
30-10
NBB filing Annual accounts filed
fiscal year 2022 · micro schema · 91 days late
2022
01-08
NBB filing Annual accounts filed
fiscal year 2021 · micro schema · 1 day late
2021
31-12
Financial Liquidity doublescurrent ratio 1.10
Current ratio from 0.53 to 1.10; short-term debt falls from €49,275 to €30,510.
26-08
NBB filing Annual accounts filed
fiscal year 2020 · micro schema · 26 days late
2020
31-12
Financial Back to profitnet €25,237
Net result €25,237 after one loss-making year.
20-07
NBB filing Annual accounts filed
fiscal year 2019 · micro schema
2019
31-12
Financial Weakest financial yearnet -€49,817
Net result drops to -€49,817, the lowest in the series; recovery starts the following year.
29-08
NBB filing Annual accounts filed
fiscal year 2018 · micro schema · 29 days late
2018
29-10
NBB filing Annual accounts filed
fiscal year 2017 · micro schema · 90 days late
2017
28-08
NBB filing Annual accounts filed
fiscal year 2016 · micro schema · 28 days late
2016
30-08
NBB filing Annual accounts filed
fiscal year 2015 · abbreviated schema · 30 days late
Financial milestoneNBB filingFinancial milestones sit on the fiscal year-end date, not the filing date.
0 of 4 acts read
About the unread acts

We know of 4 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
4 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, Rumst · 1 establishment unit since 2011
seat establishment The establishment unit on the map
Ground area
226 m²
Building footprint
134 m²
Volume, LiDAR
684 m³
Parcel 11036B0243/00F003, Flanders · tallest building 9.2 m, ±2 floors. Linked by address, not a title deed.
1 establishment unit
Harmonic Waves
Dennenlaan 33, 2840 RumstIT consultancy
since 20112.199.909.916
1 parcel
Flanders 1 (100%)
Parcel (capakey) Region Area Buildings Height / fl.
11036B0243/00F003 Flanders 226 m² 1 · 134 m² 9.2 m · 2 fl.
Linked by address, not proof of ownership
Good to know
1 of 1 parcel with an exact address match; the rest are indicative.
Linked through address data, this is not proof of ownership.

Similar companies · same sector, comparable size

Of 30,007 companies in sector 62200 we hold annual accounts for 18,400. 15,579 are within a factor 10 of this equity. The 5 above are the closest to it. See the whole sector

Identification & contact

Identification
Legal formPrivate limited company (pre-2019)
Founded07-06-2011
Fiscal year end31-12
Activities, NACEBEL 2025
62200Computer consultancy and computer facilities management
Contact
Phone 0488685899Rumst
E-invoicing
Reachable via Peppol
Peppol ID 0208:0836784257
Also 9925:BE0836784257
Registered 27-11-2025

Register as of 27 September 2026 · Peppol Directory

Scores and ratios are computed by Checked and are not a credit decision.