Active · per the CBE, 29 September 2026

OPTERA

BE1010799089

Rechtspersoon Private limited company 1 establishment

OPTERA is a civil engineering contractor in Aarschot. Private Limited, started on 26 June 2024, 1 establishment.

Begijnhof 7, 3200 Aarschot

Behind the company: Maarten Mertens, Annelies Mertens.

Active for

2 year, 3 months

Financials

Financial year 2025

OPTERA from Aarschot, company number BE1010799089, closed financial year 2025 with a result of € 22,261 after tax. For that financial year OPTERA recorded a gross margin of € 34,381 and equity of € 27,307. Compared with financial year 2024, the result moved from € 4,046 to € 22,261. Profitable, and profit is growing. The buffer is growing. Debts are under control. The most recent annual accounts were filed with the National Bank of Belgium on July 23, 2026.

What it is worth Growing

€ 27,307

▲ € 22,261 vs 2024

Assets minus debts, by the books. What is left if everything were sold and paid today.

Profit Growing

€ 22,261

▲ € 18,215 vs 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 29,051

▲ 137% vs 2024

Cash and bank balances on the last day of the fiscal year.

Where the profit goes Growing

Stays in the company

No dividend for 2025. Retained profit grew to € 26,307.

People and assets in 2025

Vehicles and equipment

€ 21,858

Book value of vehicles, furniture and equipment.

Debts at end 2025

Bank debt

None

No bank loans on the last day of the fiscal year.

Owed to suppliers

€ 29,365

▲ 208% vs 2024

Supplier invoices still open on the last day of the fiscal year.

Taxes and wages

€ 17,438

▲ € 16,334 vs 2024

Taxes, VAT and social contributions still to pay.

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Key figures per fiscal year Download key figures (CSV)
20242025Change 2024 → 2025
Gross margin € 5,741 € 34,381 ▲ € 28,640
Profit after taxes € 4,046 € 22,261 ▲ € 18,215
Equity € 5,046 € 27,307 ▲ € 22,261
Total debts € 33,553 € 65,465 ▲ 95%
Cash € 12,248 € 29,051 ▲ 137%
Retained profit € 4,046 € 26,307 ▲ € 22,261
Balance sheet total € 38,599 € 92,771 ▲ 140%

Key figures of OPTERA, fiscal years 2024 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 31 July 2027.

What happened to OPTERA?

What happened at OPTERA in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

  • New annual accounts for financial year 2025: profit of € 22,261 (▲ € 18,215 vs 2024). Source: NBB ↗
  • Annelies Mertens became a director. NBB
  • New establishment in Aarschot. KBO
  • Start of the company according to the CBE. KBO

In short

From € 4,046 profit in 2024 to € 22,261 profit in 2025.

Paid € 9,438 in corporate taxes since 2024.

Best year ever: 2025, with € 22,261 profit.

Management

Maarten Mertens Annelies Mertens
OPTERA

Behind OPTERA are Maarten Mertens and Annelies Mertens. Maarten Mertens is also behind ECO MOUNT.

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Directors

According to the 2025 annual accounts

Maarten Mertens

Director

Also active at: ECO MOUNT

Annelies Mertens

Director

since 2025

Establishments

Establishment units

Physical locations of this company

Registered office

Begijnhof 7

3200 Aarschot

What is an establishment unit? An establishment unit is a geographically identifiable place where activities of the enterprise are carried out.

Details

Company number
1010.799.089
VAT number
BE 1010.799.089
Registered office
Begijnhof 7, 3200 Aarschot
Names & denominations
OPTERA
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
26 June 2024
Peppol
Active · Active since 1 Jan 2025
Activities · NACE

Bouw van rioleringen

Bouwrijp maken van terreinen

Vervaardiging van civiele lucht- en ruimtevaartuigen en van toestellen in verband daarmee

Personenvervoer door de lucht

Diensten in verband met de luchtvaart

Vervaardiging van lucht- en ruimtevaartuigen en van toestellen in verband daarmee

Frequently asked questions

What does OPTERA do?
OPTERA is a civil engineering contractor in Aarschot. Private Limited, started on 26 June 2024, 1 establishment.
What is the address of OPTERA?
The registered office of OPTERA is located at Begijnhof 7, 3200 Aarschot.
Is OPTERA still active?
Yes. According to the CBE (29 September 2026) OPTERA is active, legal situation “Normale toestand”, started on 26 June 2024.
Is OPTERA registered on Peppol?
Yes, OPTERA is registered on the Peppol network with ID 0208:1010799089.
What is the enterprise number of OPTERA?
The enterprise number of OPTERA is BE1010799089.
When was OPTERA founded?
OPTERA was founded on 26 June 2024.