Largest companies in Belgium
We track 1 Belgium stock index (BEL 20), covering 23 companies.
Largest Belgium companies by market cap
Market caps from each exchange's listings, converted to US dollars at the same day's exchange rates, as of 2026-10-09.
| # | Company | Market cap | Indexes |
|---|---|---|---|
| 1 | AB InBev | $160.9 billion | 4 |
| 2 | UCB | $57.3 billion | 1 |
| 3 | Elia Group | $15.2 billion | 1 |
| 4 | Lotus Bakeries | $12.0 billion | 1 |
| 5 | Sofina | $10.6 billion | 1 |
| 6 | D'Ieteren | $10.3 billion | 1 |
| 7 | GBL | $10.0 billion | 1 |
| 8 | Ackermans & van Haaren | $9.5 billion | 1 |
| 9 | Syensqo | $8.8 billion | 1 |
| 10 | Aedifica | $5.9 billion | 1 |
| 11 | Warehouses De Pauw | $5.6 billion | 2 |
| 12 | CMB.TECH | $5.4 billion | 2 |
| 13 | Umicore | $4.7 billion | 1 |
| 14 | Azelis Group | $3.2 billion | 1 |
| 15 | Solvay | $2.7 billion | 1 |
| 16 | Melexis | $2.5 billion | 1 |
| 17 | Titan America | $2.5 billion | 2 |
| 18 | Lakefront Biotherapeutics | $2.1 billion | 2 |
| 19 | Montea | $1.7 billion | 1 |
Indexes
- BEL 20: 20 companies
- Euro Stoxx 50: euro area index that includes Belgium
Companies in the most indexes
| Company | Indexes | Member of |
|---|---|---|
| AB InBev | 4 | BEL 20, JSE Top 40, Euro Stoxx 50, NYSE Composite |
| Warehouses De Pauw | 2 | BEL 20, AEX |
| Ackermans & van Haaren | 1 | BEL 20 |
| Aedifica | 1 | BEL 20 |
| Ageas | 1 | BEL 20 |
| Azelis Group | 1 | BEL 20 |
| D'Ieteren | 1 | BEL 20 |
| Elia Group | 1 | BEL 20 |
| GBL | 1 | BEL 20 |
| KBC | 1 | BEL 20 |
| Lotus Bakeries | 1 | BEL 20 |
| Melexis | 1 | BEL 20 |
| Montea | 1 | BEL 20 |
| Sofina | 1 | BEL 20 |
| Solvay | 1 | BEL 20 |
| Syensqo | 1 | BEL 20 |
| UCB | 1 | BEL 20 |
| Umicore | 1 | BEL 20 |
| CMB.TECH | 2 | OSEBX, NYSE Composite |
| Lakefront Biotherapeutics | 2 | AMX, Nasdaq Composite |
Where Belgium sits on the map
Lit tiles are the Belgium indexes we track.
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