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Dennis Slier Email & Phone Number
Commercieel Directeur and Project Lead
at
NFIR BV
1 work email found
@nfir.nl
3 phones found area 162 and 130
LinkedIn matched
✓ Verified August 2026
4 data sources
Profile completeness 100%
Current company
Role
Commercieel Directeur and Project Lead
Location
Hilversum, North Holland, Netherlands
Company size
Who is Dennis Slier? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Dennis Slier is listed as Commercieel Directeur and Project Lead at NFIR BV, a with 45 employees, based in Hilversum, North Holland, Netherlands. AeroLeads shows a work email signal at nfir.nl, phone signal with area code 162, 130, and a matched LinkedIn profile for Dennis Slier.
Dennis Slier previously worked as Commercieel Directeur & Project Lead at Nfir Bv and Managing Director at Dunck Loyalty Marketing. Dennis Slier studied at Security Academy.
Company email context
Email format at NFIR BV
This section adds company-level context without repeating Dennis Slier's masked contact details.
dslier@nfir.nl
79% confidence
AeroLeads found 1 current-domain work email signal for Dennis Slier. Compare company email patterns before reaching out.
Profile bio
About Dennis Slier
Dennis Slier is a Commercieel Directeur and Project Lead at NFIR BV. He possess expertise in sales management, b2b, business development, new business development, digital marketing and 8 more skills. Colleagues describe him as "Dennis heeft met zijn NFIR team de geplande PENtest voor ons professioneel uitgevoerd. De samenwerking en communicatie tijdens de voorbereiding, uitvoering, rapportering en afronding was uitstekend. " and "Ik beveel u Dennis Slier van harte aan. In de tijd dat Dennis vanuit Dunck voor het Parkschap Nationaal Park De Biesbosch advieswerk verzorgde heb ik hem als een betrouwbare partner leren kennen. Iemand met kennis van zaken en altijd in het belang van ons als opdrachtgever meedacht en de daad bij het woord voegde. Aimabel, aandacht voor de ander, slim en integer zijn eigenschappen die bij Dennis passen."
Listed skills include Sales Management, B2B, Business Development, New Business Development, and 9 others.
Current workplace
Dennis Slier's current company
Company context helps verify the profile and gives searchers a useful next step.
Nfir Bv
11 roles
Dennis Slier work experience
A career timeline built from the work history available for this profile.
Commercieel Directeur & Project Lead
Current24/7 Incident Response | Digitaal Forensisch Onderzoek | Security Consultancy | Pentesten | Security Monitoring | Cyber awareness | Social Engineering | Particulier Onderzoeker | RedTeaming
Jan 2019 - Present
Managing Director
Verantwoordelijk voor de algemene leiding en P&L. Focus op commerciële groei, people management en de ontwikkeling van het online loyalty platform.
Jan 2018 - Dec 2018
Operations Director
Verantwoordelijk voor de operatie en leidinggevende. Contractuele afspraken met leveranciers en partners. Product Owner en implementatie van de AVG.
Jun 2017 - Jan 2018
Mede-Oprichter
GetsbyLife was een innovatieve betaaloplossing voor zowel bewindvoerders als onder bewind gestelden. Fintech oplossing met functionele bancaire verbeteringen voor deze specifieke doelgroep, eenvoud, klantgerichtheid en een bijdrage aan financiële bewustwording.
Jul 2016 - Jun 2018
Sabbatical
Sabbatical periode waarin ik tijd heb besteed aan mijn gezin, vrienden, varen en zelfontwikkeling. Daarnaast ben ik als initiatiefnemer betrokken geweest bij MVO FinTech start-up Getsby Life.
May 2016 - Apr 2017
Managing Director
Sparco International B.V.
• Strategisch en operationeel eindverantwoordelijk • Focus op ‘Operational Excellence’• Scrum Product Owner
Jun 2013 - Apr 2016
Sales Manager
Sparco International B.V.
• Consultative selling sales team• YOY winstgroei 15-20%• 4 ‘High Growth Award’ nominaties en 2 FD Gazellen nominaties• Nationale en internationale accounts• Product Development loyalty SAAS oplossingen
Jan 2007 - May 2013
Key Account Manager
Sparco International B.V.
• Accountmanagement van nationale en internationale Key accounts• Hunter en Farmer skills• Consultative selling van online loyalty oplossingen met additioneel maatwerk
Jun 2002 - Dec 2006
Oprichter
Oxalis Cartridge Trading
In- en verkoop van lege inkjet- en lasercartridges middels creatieve inzamelprojecten.
Jul 1998 - Nov 2006
Feb 1996 - Apr 2000
Team & coworkers
Colleagues at NFIR BV
Other employees you can reach at nfir.nl. View company contacts for 45 employees →
RM
Rais Mense
Colleague at Nfir BvAmsterdam, North Holland, Netherlands
View →
RV
Robin Van Sambeek
Colleague at Nfir BvEnschede, Overijssel, Netherlands
View →
NT
Nikolaos Tocila
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
CZ
Collin Zuiderwijk
Colleague at Nfir BvNetherlands
View →
SK
Steven Kasper
Colleague at Nfir BvZwolle, Overijssel, Netherlands
View →
AV
Arwi Van Der Sluijs
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
AÖ
Atilla Ö.
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
JV
Jesper Van Marle
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
KA
Klilo Asmae
Colleague at Nfir BvPrefecture Of Casablanca, Casablanca-Settat, Morocco
View →
MV
Mathijs Van Der Pol
Colleague at Nfir BvHoofddorp, North Holland, Netherlands
View →
Rais Mense
Colleague at Nfir BvAmsterdam, North Holland, Netherlands
View →
RV
Robin Van Sambeek
Colleague at Nfir BvEnschede, Overijssel, Netherlands
View →
NT
Nikolaos Tocila
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
CZ
Collin Zuiderwijk
Colleague at Nfir BvNetherlands
View →
SK
Steven Kasper
Colleague at Nfir BvZwolle, Overijssel, Netherlands
View →
AV
Arwi Van Der Sluijs
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
AÖ
Atilla Ö.
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
JV
Jesper Van Marle
Colleague at Nfir BvThe Hague, South Holland, Netherlands
View →
KA
Klilo Asmae
Colleague at Nfir BvPrefecture Of Casablanca, Casablanca-Settat, Morocco
View →
MV
Mathijs Van Der Pol
Colleague at Nfir BvHoofddorp, North Holland, Netherlands
View →
9 education records
Dennis Slier education
Education record
Education record
Greenstone
Education record
Klaver Management Coaching & Training
Loyalty Mba
Terrapinn Training Uk
Open Management Training
Mansal
Open Training Verkoop En Communicatie
Mansal
Ba
Haarlem Business School - Small Business
Middle Class Secondary Education
Abstede College Mmo-C
FAQ
Frequently asked questions about Dennis Slier
Quick answers generated from the profile data available on this page.
What company does Dennis Slier work for?
Dennis Slier works for NFIR BV.
What is Dennis Slier's role at NFIR BV?
Dennis Slier is listed as Commercieel Directeur and Project Lead at NFIR BV.
What is Dennis Slier's email address?
AeroLeads has found 1 work email signal at @nfir.nl for Dennis Slier at NFIR BV.
What is Dennis Slier's phone number?
AeroLeads has found 3 phone signal(s) with area code 162, 130 for Dennis Slier at NFIR BV.
Where is Dennis Slier based?
Dennis Slier is based in Hilversum, North Holland, Netherlands while working with NFIR BV.
What companies has Dennis Slier worked for?
Dennis Slier has worked for Nfir Bv, Dunck Loyalty Marketing, Getsby Life, Extended Leave, and Sparco International B.V..
Who are Dennis Slier's colleagues at NFIR BV?
Dennis Slier's colleagues at NFIR BV include Rais Mense, Robin Van Sambeek, Nikolaos Tocila, Collin Zuiderwijk, and Steven Kasper.
How can I contact Dennis Slier?
You can use AeroLeads to view verified contact signals for Dennis Slier at NFIR BV, including work email, phone, and LinkedIn data when available.
What schools did Dennis Slier attend?
Dennis Slier studied at Security Academy.
What skills is Dennis Slier known for?
Dennis Slier is listed with skills including Sales Management, B2B, Business Development, New Business Development, Digital Marketing, Online Communications, Selling, and It Solutions.
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