HYDRALIS
The LEI register names no parent.
Earlier ties
| CERCLE DES PRESSES UNIVERSITAIRES via Jonathan Biermann, no longer at CERCLE DES PRESSES UNIVERSITAIRES · Director Bankrupt |
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| Fondation Philippe Wiener-Maurice Anspach via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 29-09-2017 founded in 1965 · accounts filed late |
total assets €25.9m (2024) |
| Fondation Universitaire via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Managing director · deed of 04-12-2017 founded in 1920 · accounts filed late |
23 FTE (2025) |
| Union des Anciens Etudiants de l'Universite Libre de Bruxelles via Jonathan Biermann, no longer at Union des Anciens Etudiants de l'Universite Libre de Bruxelles · Permanent representative · deed of 14-09-2017 founded in 1948 · accounts filed late |
1.2 FTE (2021) |
| AiVidens via van MALE de GHORAIN Baudouin Paul Emile Marie Ghislain, at HYDRALIS until 2015 · Class B director · deed of 16-07-2020 founded in 2019 · negative equity (2025) |
total assets €293,744 (2025) |
| SOCIETE FEDERALE DE PARTICIPATIONS ET D'INVESTISSEMENT via Céline Vaessen, no longer at SOCIETE FEDERALE DE PARTICIPATIONS ET D'INVESTISSEMENT · Permanent representative · deed of 30-10-2018 founded in 1994 · group Belgische Staat |
total assets €11.68bn (2025) |
Show 56 more earlier ties
| ORANGE BELGIUM via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 26-05-2011 founded in 1995 · group ORANGE |
1,953 FTE (2025) |
| DELEN PRIVATE BANK via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Non-executive director · deed of 24-07-2023 founded in 1994 · group ACKERMANS & VAN HAAREN |
total assets €3.48bn (2025) |
| TELENET GROUP HOLDING via Franck Christiane, at HYDRALIS until 2021 · Independent director · deed of 21-06-2018 founded in 2002 · group LIBERTY GLOBAL LTD. |
total assets €3.08bn (2025) |
| TotalEnergies Power & Gas Belgium via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 28-05-2014 founded in 2003 · group TotalEnergies SE |
181 FTE (2025) |
| SIBELGA via Jonathan Biermann, no longer at SIBELGA · Director · deed of 19-07-2013 founded in 1982 · group INTERFIN |
turnover €396.7m (2025) |
| PUBLIGAZ via Vincent Scourneau, no longer at PUBLIGAZ · Director · deed of 21-12-2011 founded in 1992 |
total assets €1.50bn (2025) |
| INTERFIN via Jonathan Biermann, no longer at INTERFIN · Director · deed of 19-07-2013 founded in 1982 |
total assets €1.31bn (2025) |
| Le Travailleur chez Lui via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 28-06-2023 founded in 1929 · group ENODIA |
turnover €12.4m (2025) |
| GILOPS GROUP via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 30-07-2024 founded in 1964 · group FINANCIERE SAINT PAUL |
turnover €211.1m (2025) |
| MEDIAFIN via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 12-09-2019 founded in 1926 |
300 FTE (2025) |
| IRISteam via Cathy Marcus, at HYDRALIS until 2018 · Director · deed of 08-09-2021 founded in 2006 |
619 FTE (2025) |
| FONDATION BERNHEIM via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Vice président,trésorier et directeur du comité financier · deed of 21-12-2023 founded in 1987 |
total assets €68.6m (2025) |
| Association Jules Bordet via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 24-12-2020 founded in 1969 |
total assets €60.6m (2025) |
| L'HOURGNETTE via Yves Benoît BOURDEAU, no longer at L'HOURGNETTE · Director · deed of 13-05-2011 founded in 2011 · group TINC |
turnover €6.6m (2025) |
| Fondation Francqui via Françoise Masai, at HYDRALIS until 2023 · Director · deed of 25-05-2021 founded in 1932 |
total assets €55.6m (2025) |
| CONCEPTION, ETUDES ET COOPERATION DE FORMATION via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 30-12-2025 founded in 1979 · group FINANCIERE SAINT PAUL |
34 FTE (2025) |
| WALLIMAGE via Vincent Scourneau, no longer at WALLIMAGE · Director · deed of 24-07-2006 founded in 2000 |
15 FTE (2025) |
| INTERCOMMUNALE BATAILLE DE WATERLOO 1815 via Vincent Scourneau, no longer at INTERCOMMUNALE BATAILLE DE WATERLOO 1815 · Director founded in 1997 |
total assets €32.1m (2025) |
| World Wide Fund for Nature - Belgium via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 11-04-2017 founded in 1966 |
21 FTE (2025) |
| DEGROOF PETERCAM FOUNDATION via Etienne Thierry J de Calattay, no longer at DEGROOF PETERCAM FOUNDATION · Director · deed of 30-12-2014 founded in 2008 |
total assets €25.4m (2025) |
| STATER BELGIUM via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 14-06-2018 founded in 2001 |
154 FTE (2025) |
| MUNDO - LAB via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 11-04-2012 founded in 2008 |
15 FTE (2025) |
| Brulocalis via Jonathan Biermann, no longer at Brulocalis · Director · deed of 30-01-2020 founded in 1993 |
38 FTE (2025) |
| YAGO via van MALE de GHORAIN Baudouin Paul Emile Marie Ghislain, at HYDRALIS until 2015 · Director · deed of 18-03-2020 founded in 2015 |
55 FTE (2025) |
| FONDATION ULB via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 24-05-2017 founded in 2008 |
2 FTE (2025) |
| Les Instituts Internationaux de Physique et de Chimie Fondes Par Ernestsolvay via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 16-08-2019 founded in 1970 |
2 FTE (2025) |
| Mission Locale Pour l'Emploi via Gabriel PERSOONS, no longer at Mission Locale Pour l'Emploi · Director · deed of 26-08-2019 founded in 1991 |
62 FTE (2025) |
| Médecins Sans Vacances ASBL via Franck Christiane, at HYDRALIS until 2021 · Director · deed of 07-04-2022 founded in 1991 |
17 FTE (2025) |
| INSTANT NEWS SERVICES via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 05-11-2025 founded in 1991 · group FINANCIERE SAINT PAUL |
9.3 FTE (2025) |
| Cinémathèque Royale de Belgique via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Chair · deed of 12-11-2025 founded in 1969 |
56 FTE (2025) |
| Centre scolaire Saint-Michel via Etienne Thierry J de Calattay, no longer at Centre scolaire Saint-Michel · Director founded in 1971 |
22 FTE (2025) |
| Mission locale d'Ixelles pour l'Emploi et la Formation via Pierre LARDOT, at HYDRALIS until 2019 · Director · deed of 13-10-2011 founded in 1991 |
42 FTE (2025) |
| COUPOLE BRUXELLOISE DE L'AUTISME via Cathy Marcus, at HYDRALIS until 2018 · Director · deed of 03-09-2025 founded in 2008 |
30 FTE (2025) |
| Fairtrade Belgium via Franck Christiane, at HYDRALIS until 2021 · Director · deed of 28-02-2014 founded in 1990 |
20 FTE (2025) |
| CENTRE ON REGULATION IN EUROPE via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Emeritus professor,honorary chairman · deed of 31-12-2025 founded in 2010 |
9 FTE (2025) |
| FINANCE WATCH via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Vice-chair · deed of 23-03-2017 founded in 2011 |
15 FTE (2025) |
| MICRO - FM via Pierre LARDOT, at HYDRALIS until 2019 · Director · deed of 19-10-2022 founded in 1990 · group MAJA Group |
total assets €2.5m (2025) |
| Education Saint Michel via Etienne Thierry J de Calattay, no longer at Education Saint Michel · Director founded in 1975 |
6.1 FTE (2025) |
| Special Olympics Belgium via Etienne Thierry J de Calattay, no longer at Special Olympics Belgium · Director · deed of 12-05-2021 founded in 1979 |
total assets €1.4m (2025) |
| BRUXELLES INFRASTRUCTURE FINANCE - BRUSSEL INFRASTUCTUUR FINANCIERING via Christian Vandercam, no longer at BRUXELLES INFRASTRUCTURE FINANCE - BRUSSEL INFRASTUCTUUR FINANCIERING · Director · deed of 23-02-2021 founded in 1990 · group Brusselse Hoofdstedelijk Gewest |
2 FTE (2025) |
| BLDK CONSULT via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Permanent representative · deed of 18-12-2025 founded in 2004 |
total assets €1.3m (2025) |
| Section Belge du Centre International de Recherches et d'Informations Sur l'Economie publique, sociale et coopérative via Françoise Masai, at HYDRALIS until 2023 · Director · deed of 13-07-2015 founded in 1952 |
7 FTE (2025) |
| ULB Engagée via Jonathan Biermann, no longer at ULB Engagée · Director · deed of 14-09-2017 founded in 2017 |
7 FTE (2025) |
| SAINT-GILLES SPORT via Cathy Marcus, at HYDRALIS until 2018 · Chair of the board · deed of 31-12-2019 founded in 2008 |
6.2 FTE (2025) |
| Accompagnement parascolaire et soutien aux études via Jean-Paul Trum, at HYDRALIS until 2012 · Director · deed of 27-07-2023 |
founded in 2014 |
| Association de la Famille Callataij via Etienne Thierry J de Calattay, no longer at Association de la Famille Callataij · Director |
founded in 1995 |
| ASSOCIATION PHILANTHROPIQUE DE LA COMMEDIA DELL 'ARTE via Philippe Boulengier, at HYDRALIS until 2019 · Director and treasurer · deed of 11-04-2023 |
founded in 2016 |
| BANQUE DEGROOF PETERCAM via Etienne Thierry J de Calattay, no longer at BANQUE DEGROOF PETERCAM · Director · deed of 16-03-2012 |
founded in 1956 |
| Be Impact via Etienne Thierry J de Calattay, no longer at Be Impact · Director · deed of 17-07-2019 |
founded in 2019 |
| BE PLANET via Etienne Thierry J de Calattay, no longer at BE PLANET · Director |
founded in 2015 |
| Bordet'n Wellness via Eric DEKEULENEER, at HYDRALIS, last mentioned in 2015 · Director · deed of 15-02-2019 |
founded in 2007 |
| Laïcité et humanisme en Afrique Centrale via Pierre LARDOT, at HYDRALIS until 2019 · Director · deed of 24-09-2026 |
founded in 1997 |
| Les Vrais Amis de l'Union et du Progres Reunis via Yves Benoît BOURDEAU, no longer at Les Vrais Amis de l'Union et du Progres Reunis · Director · deed of 30-04-2019 |
founded in 1960 |
| Libre Examen et Philanthropie via Pierre LARDOT, at HYDRALIS until 2019 · Director · deed of 14-05-2024 |
founded in 1965 |
| LPLC via Jacques Oberwoits, at HYDRALIS until 2019 · Secretary · deed of 28-03-2023 |
founded in 2023 |
| SOCIETE ROYALE D'ECONOMIE POLITIQUE DE BELGIQUE via Etienne Thierry J de Calattay, no longer at SOCIETE ROYALE D'ECONOMIE POLITIQUE DE BELGIQUE · Director |
founded in 1997 |
Holdings and subsidiaries
2 holdingsHoldings 2
- Equity €141.1m Profit of €7.2m in 2025 (profit of €6.0m in 2024)1.68%
- Equity €246.6m Loss of €3.2m in 2025 (loss of €3.8m in 2024)1.04%
Board mandates elsewhere
1 board mandateBoard mandates of HYDRALISHYDRALIS sits on their board1
Connections & network
17 connected companiesThis company
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Shareholding
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Linked via shared directors
VICTOR LAW
via Gabriel PERSOONS · Director · deed of 11-03-2022
Founded in 2013 · 1.2 FTE (2025) · negative equity
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VIVAQUA
via Gabriel PERSOONS, Jonathan Biermann and Vincent Scourneau (no longer at VIVAQUA) · deeds of 20-10-2025 and 13-05-2019
Founded in 1968 · 1,260 FTE (2025)
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LES PETITS RIENS - SPULLENHULP
via Etienne Thierry J de Calattay · Director · deed of 01-06-2021
Founded in 1937 · 242 FTE (2025)
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Show 13 more companies with a shared director
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VIVRE CHEZ SOI, ASBL DE SERVICES A DOMICILE DE WATERMAEL-BOITSFORT
via Gabriel PERSOONS · Director · deed of 11-07-2025
Founded in 1960 · 41 FTE (2025)
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CANOPEA
via Etienne Thierry J de Calattay · Director · deed of 27-07-2026
Founded in 1974 · 24 FTE (2025)
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IMMOHAIN
via Christian Vandercam · Director (not named in the articles) · deed of 08-01-2024
Founded in 1993 · turnover €47,335 (2025)
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Jeunesses scientifiques de Belgique
via Yves Benoît BOURDEAU · Director · deed of 01-07-2024
Founded in 1975 · 12 FTE (2025)
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Animation - Prévention socio - culturelle
via Jonathan Biermann · Director · deed of 26-06-2026
Founded in 1992 · total assets €248,213 (2025)
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Impact Finance Belgium
via Céline Vaessen · Vice-chair · deed of 31-01-2023
Founded in 2023 · total assets €187,871 (2025)
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Plaatselijk Werkgelegenheidsagentschap van Watermaal-Bosvoorde - Agence locale pour l'Emploi de Watermael-Boitsfort
via Gabriel PERSOONS · Director · deed of 04-11-2025
Founded in 1995 · total assets €42,110 (2025)
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ACTION LIBERALE BRABANCONNE WALLONNE
via Vincent Scourneau · Director · deed of 26-02-2024
Founded in 1997
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Commune de Watermael-Boitsfort
via Gabriel PERSOONS · Permanent representative · deed of 06-05-2026
Founded in 1962
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SFPIM International
via Céline Vaessen · Director · deed of 23-07-2024
No longer active · founded in 1971 · total assets €111.0m (2025) · group Belgische Staat
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