The following companies were delighted they signed up with Sibilant:

Handel-industrie
ADF Model-en Vormmakerij
AG Autogas Systems België
Aluhold
Antwerp Building Consultants
AVT
Baltimore Aircoil
Biobest
Black & Decker
BP Aromatics
BP Belgium
British American Tobacco Belgium
Cogepa
Capespan Continent 
C & C Engineering
Danfoss
D. Engels
Discorp
Euroshoe group
Festo Belgium
Fox International group Ltd
Interjute
Honeywell
HC Starck International 
Lyfra
Lymar
Microfibres
Monks International
Mud Chick
Prince Technics
Pump Service Automatic
Raffinerie Tirlemontoise
RBV Leaf Belgium
Recticel
Revas
Rizla Belgium
Sanutal
SPG Moulds Tumag
Tennant
Trapmann
Vasco Data Security
Wood Wood & co
 
Diensten
 Accova
Ace Digital House
Altran Europe
Arcadis Belgium
Avertim
Baleares Lifestyle
Beaver IT Services
Belvu
Belgacom
British American Tobacco 
Co-ordination centre
Brunel Engineering Consultants
Celprint
Cleaning Masters
Consult & co
Crediplan
Deloitte & Touche
Devalck Consultants
D Soft
EOTA
GITP
Gosky
Heca
Intersentia
Molenbergnatie
Motorola
Movify
Netconnect
Ordina Belgium
Plus Point Marketing
Phinest
SAS Institute
SGS Biopharma- SGS Expertisegroep
SN Brussels Airlines 
Sodexho Belgique-België
Soma
Stanley Europe
Talent Planet
USG Innotiv ICT
USG Innotive Engineering
USG Innotiv Legal Forces
USG People
Wemanity
Wizards of the Coast  
 
Transport-logistiek
ABX logistics 
Challenge International Belgium
Chronopost International Belgium
Fons Truck & Trailer Service
Hesse-Noord Natie
Safmarine Container Lines
Scania Belgium- Scania Hainaut
Openbaar Bestuur
Agence de l’Eau-Picardie
ICBS-CIPE
MoMu
Ministerie van Landsverdediging 
Vlaams Parlement