About us · Hillegom

The people behind the show

We are ENTERTAINIT!: a close-knit team of DJs, technicians and stagehands from Hillegom. For more than 15 years we have been providing the wow factor at weddings, festivals, theatre performances, presentations, livestreams and respectful funerals.

Meet the team Visit us in Hillegom

More than 15 years of experience
Our own building at Marconistraat 9A
Accredited training company
5.0 stars on Google

15+years of experience

10professionals in the team

5.0 ★average on Google

6preferred supplier venues

± 200products in the rental shop

Dennis de Groot, founder and owner of ENTERTAINIT!

Our story

It started with one passion: the ultimate experience.

ENTERTAINIT! was founded by Dennis de Groot, an entrepreneur with a passion for creating the ultimate event experience. From day one, everything has revolved around top quality and a luxurious look: in the equipment we supply and in the service we provide.

What started as a DJ company grew into an all-round partner for entertainment and event technology, with its own technical department, a large rental stock and a team of regular professionals. But the core has stayed the same: every event is unique and deserves the highest standard.

Dennis de Groot · founder & owner

Our mission

Always better. More beautiful. Maximum result.

We always go the extra mile to take your event to a higher level. Whether it is the sound at a wedding or the lighting of a big festival: we always look for the perfect balance between aesthetics and functionality.

Better

Professional top brands, tested after every use, and technicians who know their craft.

More beautiful

An eye for detail and finish: a set-up that looks as good as it sounds.

Maximum

No standard package, but the best result within your wishes and budget.

Together

We listen, think along and stay available, from the first conversation to the last cable.

Our team

The people behind ENTERTAINIT!

Familiar faces who take care of your event from A to Z, from DJ and lighting technician to stagehand.

Dennis de Groot, Owner at ENTERTAINIT! — **Dennis de Groot**OwnerAll-round technician, account manager & DJ

Christian Schreuder, All-round technician at ENTERTAINIT! — **Christian Schreuder**All-round technicianSpecialised in lighting

Stefan Zwart, All-round technician at ENTERTAINIT! — **Stefan Zwart**All-round technicianSpecialised in audio

Sander Meerveld, All-round technician at ENTERTAINIT! — **Sander Meerveld**All-round technicianSpecialised in audio

Stijn Ottenhof, All-round technician at ENTERTAINIT! — **Stijn Ottenhof**All-round technicianSpecialised in lighting

Jelmer, All-round technician at ENTERTAINIT! — **Jelmer**All-round technicianAll-round

Mark Korbee, All-round technician at ENTERTAINIT! — **Mark Korbee**All-round technicianStagehand & marketing

Margriet de Groot, All-round technician at ENTERTAINIT! — **Margriet de Groot**All-round technicianAll-round stagehand

Andre Tertsch, All-round at ENTERTAINIT! — **Andre Tertsch**All-roundAll-round stagehand

Jeffrey de Groot, All-round at ENTERTAINIT! — **Jeffrey de Groot**All-roundAll-round stagehand

Our new building

Marconistraat 9A, Hillegom

Since October 2026 we have been working from our new business premises at Marconistraat 9A in Hillegom. On 11 October we festively opened the doors, in the presence of mayor Roberto ter Hark.

Here our office, our warehouse with the complete rental stock and a meeting room come together. That way we can act fast, maintain our equipment carefully and take all the time we need to go through your event or wedding together.

Office and meeting room
Warehouse with ± 200 products in stock
Pick-up point for the online rental shop

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Opening of the new ENTERTAINIT! building at Marconistraat 9A in Hillegom

Proud preferred supplier of

These venues officially chose us as their recommended partner for DJ, lighting and sound.

Orangerie Elswout
Overveen

Parnassia aan Zee
Bloemendaal

Camping de Lakens
Overveen

De Volière
Noordwijkerhout

Hotel Villa Flora
Hillegom

Theater Floralis
Lisse

Party in Orangerie Elswout with lighting and sound by ENTERTAINIT!

Preferred supplier

Orangerie Elswout, Overveen

We are proud to be the preferred supplier of Orangerie Elswout: an atmospheric, historic venue in the middle of the estate in Overveen. We know the venue inside out, from the acoustics to the power points, and have worked closely with the team for years.

Exclusive weddings: from ceremony to spectacular evening party
Respectful funerals: discreet and with the calm the moment calls for
AV and technology for business presentations, dinners and events

View wedding packages

Production partner

Stronger together with KRIS&CO

For larger productions we work closely with KRIS&CO, led by Christiaan Vooren, with more than 15 years of experience in event production in the Netherlands and abroad. KRIS&CO is the link between organisers, suppliers and authorities and ensures flawless, safe execution.

Hillegoms Après-Ski FeestVier de Lente FestivalHillegoms Muziekfeest

Meeting with KRIS&CO about a production

Technical production: from concept to execution, with a realistic and transparent budget
Permits & safety: permit plans and safety for everyone involved
Technical drawings: clear drawings and visualisations of every event

Their core values align seamlessly with ours: quality, personality, independence and safety.

Discuss your production

SBB accredited training company

Accredited training company

We train the technicians of tomorrow.

ENTERTAINIT! is an officially accredited training company for the Dutch vocational (MBO) programme in Stage and Event Technology (level 4). Interns are not just an extra pair of hands with us, but future professionals: they join the team straight away, receive intensive guidance and room for their own initiative, even after their internship.

Working with high-end lighting, sound and video
Set-up, take-down and preparation of real events
Working customer-focused and safely according to the latest guidelines
Having fun in the most enjoyable trade there is

It is wonderful to see young technicians blossom with us. They gain not only knowledge here, but also confidence.
Dennis de Groot

Looking for an internship? Get in touch

Jeffrey from ENTERTAINIT! at work with a speaker on a stand

The ENTERTAINIT! team behind the technology during an event

One team, from the first conversation to the last cable.

With us you always deal with the people who actually take care of your event.

Reviews on Google

What customers say about us

    
 
 
       Geplaatst op Google  
   
   Ralf 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. ENTERTAINIT is een super bedrijf. De communicatie met eigenaar Dennis loopt soepel en is een fijn persoon om mee samen te werken. Van opbouw tot afbouw tot alle details en sfeermakende momenten die ertussen zitten, echt super!

Dankjewel Dennis, we hebben mega genoten, je hebt er een dik feest van gemaakt!
  
 
      Geplaatst op Google  
   
   Jeffrey Parmentier 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Altijd heel fijn samenwerken met Entertain-It!

Wij werken vaak samen met Dennis. Alles is tot in de puntjes geregeld en top kwaliteit van de apparatuur, hele fijne communicatie ook!

Dankbaar voor onze samenwerking! Zeker een aanrader!
  
 
      Geplaatst op Google  
   
   Mark Korbee 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Kerel komt z’n afspraken goed na en reageert snel. Prijzen zijn goed acceptabel voor de hoge kwaliteit die je krijgt.
  
 
      Geplaatst op Google  
   
   Mister Vuurwerk 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Top bedrijf! Altijd fijne samenwerking
  
 
      Geplaatst op Google  
   
   Roy 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Echte toppers! Wij hadden lichten en geluidsinstallaties bij ze gehuurd en DJ Joost  kwam draaien. Alles tot in de puntjes geregeld en Joost maakte er een onvergetelijk feest van! Bedankt mannen, wij komen zeker bij jullie terug.
  
 
      Geplaatst op Google  
   
   Debora Richard 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Top team, waanzinnige DJ booth, complete verlichting en goed geluid. Die kan je wel inhuren voor een feestje!
  
 
      Geplaatst op Google  
   
   martijn lindeman 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Dennis heeft een prachtfeest neergezet voor ons huwelijk in de Orangerie Elswout! Beste dag van ons leven die bekroond werd door een top feest met juiste selectie aan muziek, licht en een glitterende discobal! Geweldig verzorgd zowel in voorgesprek als tijdens het feest.
  
 
      Geplaatst op Google  
   
   Peter Admiraal 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. 02-05-2025 onze trouwdag wat was het een onvergetelijke mooie dag op Elswout.
Na de ceremonie, het toosten en het diner begon hèt feest waar licht en geluid geheel werd verzorgd door ENTERTAINIT ! inclusief het rookkanon wat een geweldige sfeer van begin tot eind,ook de mix van onze openingsdans was perfect samengesteld .
Er dansten mensen mee die we nog nooit hebben zien dansen.
Wat een prachtige ervaring .
Bedankt Dennis 👌🏼

Peter & Daphina Admiraal
  
 
      Geplaatst op Google  
   
   barbara petri 
 
 
 
 Trustindex verifieert dat de oorspronkelijke bron van de recensie Google is. Zo enorm tevreden! geweldige kwaliteit en levering. Hele goede en snelle service! Ze hebben van onze Genderreveal een zorgeloos en onvergetelijke ervaring gemaakt voor een vriendelijke prijs!

Dennis de Groot in front of the ENTERTAINIT! building at Marconistraat 9A in Hillegom

Want to meet?

Visit us at Marconistraat.

Plan an appointment in our meeting room in Hillegom. We take the time to go through your event, wedding or production together, and are happy to think along with you.

Plan an appointment

Call +31 252 272 400

Marconistraat 9A, Hillegom · info@entertain-it.nl
Mon–Sat 10:00–18:00 · during events also outside these hours