A
100 Mbps
Abaforum
Acceso Cero
Accesosis
ActivaNet
Adam Internet
Adenet
ADV
Airastur
ALC Internet
Alcavía
Alvanet
AMBbit
Ana Internet
Arconet
ARI
Arquired
Arrakis
Asturnet
Atlas IAP
Audinex
Autovía
Axarnet

B
Balearkom
Bankinter
Batch Net
BBVnet
BCS Network
Bemarnet
Bit Mailer
BSantander

C
Canal Dinamic
Canal +
Central House
Cesatel
CIM Internet
CIN
Cinet
CIP
Colón
CompuServe
Conecta 2000
Conexis
Coverlink
CTV

D
Datagrama
Develnet
Digital Domain
Dimasoft
Drac Telemàtic
Dragonet

E
Eims
Encis-Net
Encomix
EnferNet
Entorno Digital
ESINET
Espanet
Eurart
Europa 3
Excel Web

F
Facilnet
Falcon
Famulo
Feeling
Filnet
FriendNet
Futurnet

G
Garal
GIO
GNA
GRN

H
Hel-Com
Hispanet
H-Soft

I
I3D
Ibercom
Ibernet
IBM
IdecNet
Infase
InforEspaña
IIES
Intelideas
Interbook
Intercom
Interlink
InternetXpress
Interplanet
Iponet
ISID
IWS

J
Jet Internet

K
Kender

L
La Red
Lander
Láser Internet
LeaderNet
Lobocom
Lokekieras

M
Madrid On line
Manware
Map Telecom
Media Web
Medusa
Meridian
Microsys
Milenium
Millorsoft
Minorisa
Moebius
MSSL
Mundivía

N
Nauta
Nauta CS
NCS
Net 64
Netcom
NetWay
Nova Internet

O
Ocea
Ofinorte
Olivet Telecom
Openbank
Ordenatas
OTD

P
Pasanet
Pixar
Practical
Provicom

R
Ran Internet
Ready Soft
Recol
Redes TB
RedIris
Red NSI
Render

S
Sarenet
Seker
Sendanet
Serconet
Sercontel
Seric's Room
Sertelna
Servicom
Servisol
Si@pi
Simarro
Sincovi
SinixNet
Siscom
Spa Internet
Spain Telecom
Step On Line

T
Teclata
Telcom
Telebase
Teleline
Telnet
Tinet
Tinn Net
TSAI

V
Vallès Server
Vanaga
Vasertel
Virtual Net

W
Webhouse