Walter Koper
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Walter Koper Email & Phone Number

IT Manager at YER
Location: Amsterdam, North Holland, Netherlands 4 work roles 1 school
1 work email found @nba.nl 2 phones found area 120 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email w****@nba.nl
Direct phone (120) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
YER
Role
IT Manager
Location
Amsterdam, North Holland, Netherlands
Company size
1551 employees

Who is Walter Koper? Overview

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Quick answer

Walter Koper is listed as IT Manager at YER, a with 1551 employees, based in Amsterdam, North Holland, Netherlands. AeroLeads shows a work email signal at nba.nl, phone signal with area code 120, and a matched LinkedIn profile for Walter Koper.

Walter Koper previously worked as Teamlead Systeembeheer at Yer and sr. Technisch Systeembeheerder at Nederlandse Beroepsorganisatie Van Accountants (Nba). Walter Koper studied at Obs De Where.

Company email context

Email format at YER

This section adds company-level context without repeating Walter Koper's masked contact details.

wkoper@nba.nl
76% confidence

AeroLeads found 1 current-domain work email signal for Walter Koper. Compare company email patterns before reaching out.

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Profile bio

About Walter Koper

Walter Koper is a IT Manager at YER. He possess expertise in active directory, vmware esx, lync 2010, windows server, windows 2008 r2 and 14 more skills.

Listed skills include Active Directory, Vmware Esx, Lync 2010, Windows Server, and 15 others.

Current workplace

Walter Koper's current company

Company context helps verify the profile and gives searchers a useful next step.

YER
Yer
IT Manager
Amsterdam, NH, NL
Website
yer.nl
Employees
1551
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Company profile
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4 roles

Walter Koper work experience

A career timeline built from the work history available for this profile.

It Manager

Yer

Amsterdam, Nh, Nl

Teamlead Systeembeheer

Yer

Amsterdam, Nh, Nl

Sr. Technisch Systeembeheerder

Nederlandse Beroepsorganisatie Van Accountants (Nba)

Azure ADExchange OnlineIntuneVMware Horizon VDIFortiNet: FortiwWeb, Fortigate en FortiswitchMS Teams (ook bellen vis PSTN)/Sharepoint/OneDriveWindows serverActive Directory (migatie)PowerShellExchange 2003Exchange 2010Exchange 2016Microsoft Navision 2009Microsoft Navision 2016 (migratie van v2009 naar v2016, multi-tenant)Microsoft Office Communicator 2007 R2Microsoft Lync 2010Skype for BusinessBlackBerry Enterprise Server IISSQL 2005SQL 2008 R2SQL 2012SQL 2014VMware ESX 3.5 + 4.0 (VI, DRS; HA and iSCSI LUN's)VMware ESX 5.1 + VCenter 5.1 (VI, DRS; HA and iSCSI LUN's, Host update)VMware ESX6 + VCenter (VI, DRS; HA and iSCSI LUN's NFS, Host update)NetApp storageQNAP StorageIronPort (AntiSpam for Mail)Juniper Firewall's (SSG-140)CheckPoint Firewall'sF5 loadbalancerF5 APMMobileIron (MDM/BYOD solution)Juniper SSL-VPNOffice 365 / MS TeamsPower BI

Sr. Technisch Systeembeheerder

Nba

Amsterdam

Team & coworkers

Colleagues at YER

Other employees you can reach at yer.nl. View company contacts for 1551 employees →

KC Kh Chong Kh Chong Colleague at YerSelangor, Malaysia View → EV Edwin Vaas Edwin Vaas Colleague at YerWeert, Limburg, Netherlands View → LA Lisa Altena Lisa Altena Colleague at YerAmsterdam, North Holland, Netherlands View → LB Luka Broeder Luka Broeder Colleague at YerUtrecht, Netherlands View → EP Ely Pol Ely Pol Colleague at YerFort Lauderdale, Florida, United States View → ME Merve Emik Merve Emik Colleague at YerSoest, Utrecht, Netherlands View → MV Marleen Van Haaften Marleen Van Haaften Colleague at YerEindhoven, North Brabant, Netherlands View → YV Ymke Van Wijgerden Ymke Van Wijgerden Colleague at YerAmsterdam, North Holland, Netherlands View → MR Max Riesebosch Max Riesebosch Colleague at YerZwolle, Overijssel, Netherlands View → NL Noa Lohuis Noa Lohuis Colleague at YerNetherlands View →
1 education record

Walter Koper education

  • Obs De Where
    Obs De Where
FAQ

Frequently asked questions about Walter Koper

Quick answers generated from the profile data available on this page.

What company does Walter Koper work for?

Walter Koper works for YER.

What is Walter Koper's role at YER?

Walter Koper is listed as IT Manager at YER.

What is Walter Koper's email address?

AeroLeads has found 1 work email signal at @nba.nl for Walter Koper at YER.

What is Walter Koper's phone number?

AeroLeads has found 2 phone signal(s) with area code 120 for Walter Koper at YER.

Where is Walter Koper based?

Walter Koper is based in Amsterdam, North Holland, Netherlands while working with YER.

What companies has Walter Koper worked for?

Walter Koper has worked for Yer, Nederlandse Beroepsorganisatie Van Accountants (Nba), and Nba.

Who are Walter Koper's colleagues at YER?

Walter Koper's colleagues at YER include Kh Chong, Edwin Vaas, Lisa Altena, Luka Broeder, and Ely Pol.

How can I contact Walter Koper?

You can use AeroLeads to view verified contact signals for Walter Koper at YER, including work email, phone, and LinkedIn data when available.

What schools did Walter Koper attend?

Walter Koper studied at Obs De Where.

What skills is Walter Koper known for?

Walter Koper is listed with skills including Active Directory, Vmware Esx, Lync 2010, Windows Server, Windows 2008 R2, Juniper Firewalls, Bluecoat Proxy, and Openedge Webspeed Webservices.

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