We’re always here to help

Simply call us, send us an email or use the form below to get in touch.

..visit us..

Luttik Oudorp 11-13
1811mt Alkmaar

..or contact us through Social Media.

Contact data

Service desk

Afdeling Servicedesk

For all technical and administrative questions regarding our services, please contact our service desk. Our service desk is open from Monday to Friday from 09.00 – 18.00 (Amsterdam time). Answers to frequently asked questions can also be found in our knowledge base (Dutch only).

Email
servicedesk@cyso.com
Phone
+31 (0)72 7513400
Website

Sales

Afdeling Sales

Are you interested in our solutions, looking for advice or do you just want to meet informally? Do you have a good idea for a new service that you wish to market and want to discuss this with us? Are you looking for a possible partnership? Our sales department would like to come into contact with you.

Email
sales@cyso.com
Phone
+31 (0)72 7513405

Emergencies

Afdeling Operations

In case of serious disruptions or an emergency outage, please call us 24×7 at +31 (0)72 7513400.
Outside office hours, you will automatically be transferred to our emergency staff.

Other departments

Some departments have a separate email address. You can reach them using the addresses below.

Peering
peering@cyso.com
NOC
noc@cyso.com
Abuse
abuse@cyso.com
Marketing
marketing@cyso.com
Human resources
hrm@cyso.com
Purchase
inkoop@cyso.com

Luttik Oudorp 11-13

Parking
We recommend you use the parking garage ‘Schelphoek’ (Korte Vondelstraat 4) which is about a 4-minute walk from our office. Leave the parking garage through the ’Centrum’ exit and take go right at the Korte Vondelstraat. After 300 meters, take a left at the Luttik Oudorp. You’ll find our office at your right.
Public Transport
From the train station Alkmaar take bus 3 (to Daalmeer), 4 (to Daalmeer), 150 (to Schagen) or 160 (to Heerhugowaard) and get off at the stop Kanaalkade. Then walk (with the canal on your left) until parking garage Karperton and go right (Voordam). At the end of the Voordam go left onto the Zijdam. Cross the canal at the first bridge on your right and immediately go left onto the Luttik Oudorp. After 250 meters, you’ll find our office on your right.

Wilhelminalaan 1

Parking
We recommend you use the parking garage ‘Singelgarage’ which is immediately in front of our office. Leave the parking garage using the exit ‘Wilhelminalaan’ and you’ll find yourself about 20 meters in front of our office.
Public Transport
From the train station Alkmaar take bus 2 (to Overdie), 4 (to Overdie) or 167 (to Castricum) and get off at the stop Metiusgracht. Our office is almost immediately right behind the bus stop (behind the trees).

Let’s get in touch!


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