AeroLeads people directory · profile

Hans De Graaff Email & Phone Number

Co-owner and CTO at Winkwaves
Location: The Hague, South Holland, Netherlands 9 work roles 2 schools
1 work email found @winkwaves.com 1 phone found area 170 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email h****@winkwaves.com
Direct phone (170) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Winkwaves
Role
Co-owner and CTO
Location
The Hague, South Holland, Netherlands
Company size
22 employees

Who is Hans De Graaff? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Hans De Graaff is listed as Co-owner and CTO at Winkwaves, a company with 22 employees, based in The Hague, South Holland, Netherlands. AeroLeads shows a work email signal at winkwaves.com, phone signal with area code 170, and a matched LinkedIn profile for Hans De Graaff.

Hans De Graaff previously worked as Co-owner & CTO at Winkwaves and Developer at Gentoo Linux. Hans De Graaff holds Dr, Computer Science from Delft University Of Technology.

Company email context

Email format at Winkwaves

This section adds company-level context without repeating Hans De Graaff's masked contact details.

{first}@winkwaves.com
89% confidence

AeroLeads found 1 current-domain work email signal for Hans De Graaff. Compare company email patterns before reaching out.

View email format View company profile Management contacts
Profile bio

About Hans De Graaff

Innovation manager with a strong focus on translating new technology concepts into usable services which can be brought to market. Particular interest in services that enable communication between people.Specialties: Innovation management, service development, mobile services, communication services, web applications, P2P technology, strategic marketing.Unix, XHTML, i-mode, Perl, Ruby on Rails.

Listed skills include Ruby, Linux, Ruby On Rails, Open Source, and 11 others.

Current workplace

Hans De Graaff's current company

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

Winkwaves
Winkwaves
Co-owner and CTO
The Hague, ZH, NL
Website
winkwaves.com
Employees
22
AeroLeads page
Company profile
View company profile Email format
9 roles

Hans De Graaff work experience

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

Co-Owner And Cto

Winkwaves

The Hague, ZH, NL

Co-Owner & Cto

Current
Winkwaves
Dec 2005 - Present

Developer

Current
Gentoo Linux

Responsible for XEmacs and Ruby related packages and a small assortment of other useful software.

Nov 2006 - Present

Founder

Hci Index

Founder and sole maintainer of the HCI Index at http://degraaff.org/hci/

Jan 1995 - Dec 2010

Innovation Manager

Kpn Mobile

Program manager for i-mode innovation projects within the KPN Mobile group. Realization of several platform releases, each with multiple new or improved services. Coordination and stimulation of whole development chain from strategic marketing through implementation.Design of 3rd generation i-mode handsets and services which have been successfully.

Jan 2003 - Dec 2005

Release Manager

Open Source Project

Contributing to an open source Gnutella client (see http://gtk-gnutella.sf.net). I wrote some code for the user interface, and I have been release manager for the last few releases. Development and release management is all done through internet. The development team (3-4 people) mostly uses IRC for communication.

Jan 2004 - Oct 2005

Vice Chair For Operations

Acm Sigchi

Member of the Executive Committee of ACM SIGCHI, the Special Interest Group on Computer Human Interaction. Responsible for operational support of SIGCHI, including the mailing lists and web site of the organization.

Jul 2001 - Jun 2003

Innovator

Kpn Research

Creation of i-mode services roadmap and strategic decision documents for i-mode before and after commercial introduction. Management of balance between commercial and technical aspects of service introduction.Project leader of a research project concerning "People on the move in 2005". Creation of a vision for mobile services for business and personal use.

Sep 1997 - Dec 2002

Doctorate Candidate

Delft University Of Technology

PhD Research into the Design of Interactive Systems, in particular into supporting the early design phase between requirements gathering and the initial designs.

Nov 1992 - Aug 1997
Team & coworkers

Colleagues at Winkwaves

Other employees you can reach at winkwaves.com. View company contacts for 22 employees →

LK Liselot Koenraadt Liselot Koenraadt Colleague at WinkwavesThe Hague, South Holland, Netherlands, Netherlands View → KV Kim Van Leeuwen Kim Van Leeuwen Colleague at WinkwavesLeiden, South Holland, Netherlands, Netherlands View → RM Rene M. Jansen Rene M. Jansen Colleague at WinkwavesThe Hague, South Holland, Netherlands, Netherlands View → MV Marien Van Os Van Den Abeelen Marien Van Os Van Den Abeelen Colleague at WinkwavesThe Hague, South Holland, Netherlands, Netherlands View → MR Milou Reiche Milou Reiche Colleague at WinkwavesLeiden, South Holland, Netherlands, Netherlands View → IB Iris Boumans Iris Boumans Colleague at WinkwavesNetherlands, Netherlands View → CE Cihan Eksi Cihan Eksi Colleague at WinkwavesLeidschendam, South Holland, Netherlands, Netherlands View → SW Sterre Weber Sterre Weber Colleague at WinkwavesThe Hague, South Holland, Netherlands, Netherlands View → LV Lennie Van Appeldoorn - Kruithof Lennie Van Appeldoorn - Kruithof Colleague at WinkwavesThe Randstad, Netherlands, Netherlands View → JP Joël Plas Joël Plas Colleague at WinkwavesThe Hague, South Holland, Netherlands, Netherlands View →
2 education records

Hans De Graaff education

Dr, Computer Science

Delft University Of Technology

Thesis title: "Developing interactive systems: a perspective on supporting ill-structured work". Part-time unix system administration and.

Ir, Computer Science

Delft University Of Technology

Master's Thesis title: "Context-sensitive help as an integral part of a user interface design environment" Research for thesis carried out.

FAQ

Frequently asked questions about Hans De Graaff

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

What company does Hans De Graaff work for?

Hans De Graaff works for Winkwaves.

What is Hans De Graaff's role at Winkwaves?

Hans De Graaff is listed as Co-owner and CTO at Winkwaves.

What is Hans De Graaff's email address?

AeroLeads has found 1 work email signal at @winkwaves.com for Hans De Graaff at Winkwaves.

What is Hans De Graaff's phone number?

AeroLeads has found 1 phone signal(s) with area code 170 for Hans De Graaff at Winkwaves.

Where is Hans De Graaff based?

Hans De Graaff is based in The Hague, South Holland, Netherlands while working with Winkwaves.

What companies has Hans De Graaff worked for?

Hans De Graaff has worked for Winkwaves, Gentoo Linux, Hci Index, Kpn Mobile, and Open Source Project.

Who are Hans De Graaff's colleagues at Winkwaves?

Hans De Graaff's colleagues at Winkwaves include Liselot Koenraadt, Kim Van Leeuwen, Rene M. Jansen, Marien Van Os Van Den Abeelen, and Milou Reiche.

How can I contact Hans De Graaff?

You can use AeroLeads to view verified contact signals for Hans De Graaff at Winkwaves, including work email, phone, and LinkedIn data when available.

What schools did Hans De Graaff attend?

Hans De Graaff holds Dr, Computer Science from Delft University Of Technology.

What skills is Hans De Graaff known for?

Hans De Graaff is listed with skills including Ruby, Linux, Ruby On Rails, Open Source, Unix, Innovation Management, Mobile Devices, and Gentoo.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the Hans De Graaff you were looking for.

View similar profiles