Warning lights
Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.
-
Shrinking team NBB
FTE fell two years in a row, from 4 to 2.9.
-
Busy address KBO
80 other companies have their registered office at the same address; threshold 10.
Financials
Financial year 2025
Alnylam Belgium from Brussel, company number BE0704781412, closed financial year 2025 with a result of € 86,924 after tax. For that financial year Alnylam Belgium recorded a gross margin of € 1.3 million and equity of € 573,198. Compared with financial year 2024, the result moved from € 79,755 to € 86,924. Profitable, and profit is growing. The buffer is growing. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on July 6, 2026.
€ 573,198
▲ 18% vs 2024
Assets minus debts, by the books. What is left if everything were sold and paid today.
€ 86,924
▲ 9% vs 2024
Profit after tax over the fiscal year.
€ 599,605
▼ 31% vs 2024
Cash and bank balances on the last day of the fiscal year.
Stays in the company
No dividend for 2025. Retained profit grew to € 523,198.
People and assets in 2025
2.9
▼ 1 vs 2024
Average over the fiscal year, from the social balance sheet.
€ 1.2 million
▼ 2% vs 2024
€ 417,400 per full-time equivalent. Payroll staff only. What the director pays themselves is already netted into the gross margin and is not shown separately in the accounts.
Debts at end 2025
None
No bank loans on the last day of the fiscal year.
€ 267,422
▲ 40% vs 2024
Supplier invoices still open on the last day of the fiscal year.
€ 341,067
▼ 33% vs 2024
Taxes, VAT and social contributions still to pay.
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| 2022 | 2023 | 2024 | 2025 | Change 2024 → 2025 | |
|---|---|---|---|---|---|
| Gross margin | € 1,689,473 | € 1,610,109 | € 1,340,099 | € 1,329,529 | ▼ 1% |
| Profit after taxes | € 91,018 | € 92,106 | € 79,755 | € 86,924 | ▲ 9% |
| Equity | € 314,413 | € 406,519 | € 486,274 | € 573,198 | ▲ 18% |
| Total debts | € 912,126 | € 391,954 | € 702,289 | € 622,216 | ▼ 11% |
| Cash | € 834,122 | € 500,705 | € 866,673 | € 599,605 | ▼ 31% |
| Retained profit | € 264,413 | € 356,519 | € 436,274 | € 523,198 | ▲ 20% |
| Bank debt | € 0 | € 819 | € 0 | € 0 | |
| Balance sheet total | € 1,226,539 | € 798,474 | € 1,188,564 | € 1,195,414 | ▲ 1% |
| Employees (FTE) | 4.5 | 4 | 3.9 | 2.9 | ▼ 1 |
Key figures of Alnylam Belgium, fiscal years 2022 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 Alnylam Belgium?
What happened at Alnylam Belgium in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:
- New annual accounts for financial year 2025: profit of € 86,924 (▲ 9% vs 2024). Source: NBB ↗
- William Eliot stepped down as director. NBB
- Carlos Arnaldo Dal Secco Pagnano became a director. NBB
- Thomas Kruijver became a director. NBB
- Katarzyna Witkos became a director. NBB
- William Eliot became a director. NBB
- New establishment in Brussel. KBO
- Start of the company according to the CBE. KBO
In short
From € 91,018 profit in 2022 to € 86,924 profit in 2025.
Paid € 160,759 in corporate taxes since 2022.
Best year ever: 2023, with € 92,106 profit.
On average € 458,500 of value added per employee in 2025.
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De Lijn 8 June 2026 New annual account 2025
filed on 8 June 2026
What was left
€ 20 k ▼ 91%
Money in the bank
€ 178 k ▼ 98%
Open the dossier →
NMBS 8 June 2026 New annual account 2025 What was left ▼ 80%
bpost 18 May 2026 New annual account 2025 What was left from loss to profit
Management
Behind Alnylam Belgium are Thomas Kruijver, Katarzyna Witkos and Carlos Arnaldo Dal Secco Pagnano. The shares are held by Alnylam UK Ltd (100%).
Directors
According to the 2025 annual accounts
Thomas Kruijver
Director
since 2023
Katarzyna Witkos
Director
since 2021
Carlos Arnaldo Dal Secco Pagnano
Director
since 2025
William Eliot
Director
since 2021 · until 2026
Shareholders
Alnylam UK Ltd
100%
Participations
No participations in other companies reported.
Establishments
Establishment units
Physical locations of this company
Robert Schumanplein 6
1040 Brussel
Who else lives here?
A building full of entrepreneurs or one very busy letterbox? Another 80 companies are registered at this address.
All companies at this address →GLP Ghent
€ 2.5 million revenue · 2025
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€ 1.8 million revenue · 2025
FOSS BENELUX
€ 590,599 gross margin · 2022
ESL&Network (European Affairs)
€ 483,388 gross margin · 2025
Association des Constructeurs européens d'Automobiles
€ 16.3 million revenue · 2025
+75 more
What is an establishment unit? An establishment unit is a geographically identifiable place where activities of the enterprise are carried out.
Details
- Company number
- 0704.781.412
- VAT number
- BE 0704.781.412
- Registered office
- Robert Schumanplein 6, 1040 Brussel
- Names & denominations
- Alnylam Belgium
- Enterprise type
- Rechtspersoon
- Legal form
- Private limited company
- Legal situation
- Normale toestand
- Start date
- 19 September 2018
- Peppol
- Active · Active since 18 Dec 2025
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