Diederik Scheepstra

Managing Director

In addition to his love of animals and nature, Diederik's heart beats faster when the processes at Kernfarm run smoothly, future plans come to fruition and the staff is comfortable in their skin. He maintains momentum in projects and an overview of all activities.

Diederik gets energy from long-distance cycling, boxing and sushi. Breeding walking branches, watching those tiny little branches hatch and the meditative aquascaping of his home aquarium are the calming counterpart. On his bucket list are learning to wave surf and a trip with his family to Madagascar.

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Tim van Rijn

Founder - Pioneer

Tim is the driving force behind Kernfarm's collaborations. He initiates new partnerships and sees business opportunities everywhere. Moreover, Tim can also turn those opportunities into results. Achieving goals with the Kernfarm team makes him incredibly proud.

With ''Go for it'' as his motto you can feel that Tim is always in for adventure and wants to go for it. Not for nothing that he is the one who left for the UK with his family and dog Buddy to build up the business in the UK. If there is any time left, an adventurous trip to Africa is high on his wish list.

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Diederik van Rijn

Founder - Pioneer

'There is always an opportunity, in every subject or conversation.' With this motto, Diederik knows how to make something beautiful out of everything. At Kernfarm he does exactly what he likes best and does best. Finding new solutions to existing problems with creativity.

At home dog, chickens and an energetic family eagerly await his arrival, a warmer welcome you can hardly imagine. Need a good conversation in the middle of the night? Then Diederik is your man. Is there anything left to be desired? Certainly. To go out into the world and discover what else it has to offer him.

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Diederik van Rijns
Gijs van Rijn

Founder - Pioneer

Gijs is Kernfarm's very own Mister Fixer. Preventing and solving problems is his greatest passion. Gijs' favorite animal is a shark. Like this predator, he likes to sink his teeth into something. Give him a registration file and you can be sure he won't let go. Gijs keeps in touch with regulatory authorities and oversees GMP and GDP processes.

Gijs is always up for a good joke, playing golf and seeing what else the world has to offer. If you hear Ibiza Lounge music coming out of the speakers at the office in Breukelen, then you know DJ Gijs is at the controls.

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Gijs van Rijn
Reina van Wageningen

Warehouse and production

Reina helps the production and warehouse team process and package products. Due to a brain hemorrhage, Reina had to give up her former job. Fortunately, she has returned to the workforce. You can rely on her, she is strong, loyal and reliable. Reina says what she thinks and we love that at Kernfarm.

She loves her grandchildren, puzzles, dogs, cats and crafts. Her guilty pleasure is Tony's Chocolonely and on the wish list is a trip to America.

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Rebekka van Zanten

Warehouse and production

At Kernfarm, Rebekka makes sure that your veterinary medicines are packed and processed just right for the European market. This, of course, to have them arrive to you whole and as neatly as possible.

They sometimes say, "the best thing about leaving is coming home. That is certainly the case with Rebekka. When she opens the front door, her three Shih Tzu dogs jump on top of her. Besides dog happiness, she can also intensely enjoy wandering around a craft fair and all kinds of creative machines. Her house looks like a hobby print shop; if you come for a drink at Kernfarm, your glass might just be decorated by Rebekka.

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Sonja Smit - van der Most

Marketing Manager

If Kernfarm strikes you positively, then Sonja's day has been a success. Sonja positions the brands and products of Kernfarm and FIXR®, fresh and energetic. Think of something surprising and Sonja is already in the starting blocks.

Sonja has a weakness for yellow M&Ms. You can even wake her up in the middle of the night for these. Still, she does best on healthy food and dreams of running the marathon in New York. Encouraged by her family and cat Sjakie, whom she has loved to take everywhere with her as a cheerful companion for 16 years.

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Stefanie van Wijk

Sales Manager Netherlands

Thinking in solutions, Stefanie has 100% in common with the mission of Kernfarm. So, where you say, "the glass is half full or half empty," Stefanie says, "I'll show you where the tap is. Stefanie proudly wears Kernfarm socks and has an extensive network in the vet world.

For Formula 1, Stefanie stays home on Sunday afternoons, and you can wake her up in the middle of the night for this as well. She also races herself when she has driven up the driveway to quiet her dogs and cats. They know that barking and whining will get them lots of hugs.

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Stefanie van Wijk
Marjolein Rood

Quality Assurance & Regulatory Affairs Officer

Fresh out of college, Marjolein started at Kernfarm in 2020. 'Making that which is good even better.' As a QA and RA Officer, she can let loose with her passion for quality improvement. Marjolein fully recognizes herself in Kernfarm's mission: to add real value for people and animals.

After work at home, in Veenendaal, cat Mira is waiting. Mira chats away to Marjolein. That is super fun, except if, like Marjolein, you like to read a good book. Learning archery and a vacation to the mountains seem to be great fun. Before that happens, she enjoys herself in the nature around her house.

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Hilde Van Loocke

Technical & Account Manager Belgium - Veterinarian

Our pig veterinarian Hilde enjoys seeing pigs, veterinarians, and farmers. She has a nose for challenges and is committed to providing the best solution. Hilde's seriousness about it is evident. Did you know that she is currently pursuing a 2-year European specialization in Swine Veterinary Medicine at Ghent University?

When Hilde sleeps like a log at night, cat Messie is often on the prowl to find a little gift for her. But what Messie doesn't know is that the best way to spoil Hilde is to give her time for her great passion, horse riding. However, she still has to stand on the sidelines from time to time, whether it's for Messie or for her soccer-playing son and daughter.

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Hilde van Loocke
Ellis Draaijer

Poultry Business Development Manager

Wherever there is a chicken, there is Ellis. With her extensive experience as a veterinarian in the poultry industry and incisive nature, she knows how to handle any challenge, both technical and commercial.


At home, it is not the chicken, but the cat that is her shadow. And her rabbits, kids and wife also enjoy her positive spirit. She prefers to put them all in an RV and drive it along the most beautiful natural sites in the US.

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Ellis Draaijer
Rosemieke Melieste

Business Driver

'Say what you do and do what you say' is both a motto that fits Rosemieke and Kernfarm exactly. You recognize her by the positive way of communicating that makes you feel completely welcome as a customer.

In Rosemieke's view, every animal is unique. That doesn't just sound like a mini-poem, it actually is. This is her ode to horses, dogs and cats, all with their own personality. If you ever want to wake Rosemieke up at night, do so only if you have an Indian meal ready, then she will surely forgive you.

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Angeline Rijnsent

Marketing Assistent

Social media and photography hold no secrets for Angeline. It's she who takes care of the surprising posts to put a smile on your face. She does this in addition to hands-on jobs that, in the marketing department, are the order of the day.

At home, cat Ginger is the boss of her family. This headstrong kitty refused to go through the cat flap from day 1, why should you when you have staff to open the door for you? Ginger enjoys her singing and guitar playing daily. Air guitar she hopes to one day play from a hot air balloon. This descent is high on her bucket list!

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Ingrid de Jong

Office Manager

Service-oriented is Ingrid's middle name. As Office Manager, she has a versatile position at the Breukelen office. No day is the same and that is exactly how Ingrid likes it.

Ingrid rejoices in her two sweet god dogs: Bernese Mountain Dog (Lou) and a Golden Retriever (Floor). Besides a hug from these lovely lobbies, you can wake her up in the middle of the night for a meatball in sauce from Loetje. She dreams of one day traveling through Thailand as a real backpacker, with one of those smelly backpacks.

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Andre Dereu

Technical Swine Specialist

In Belgium it's Doctor Dre, in the Netherlands Andre Rieu. Wherever you meet him, you will get a smile on your face from this diligent swine veterinarian. With a wealth of experience in the pig industry, he will take you by the hand when using our pig products.

At home, Andre has his own orchestra. With 4 adopted dogs, 1 cat and 4 horses, he is quite scrubbed down and it is a cozy animal mess. In his dreams, he even has an easel. One of those you can paint on. Try waking him up and you'll have to come up with a very good reason!

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Andre Dereu
Nicolette Levert

Quality Assurance Manager

When you say quality, you say Nicolette. As quality minded as she is you rarely come across. With ease she manages all processes and helps her colleagues to work with the same quality focus.

At home, Nicolette would like to be a cat, living on a farm with all the farm animals you can imagine. And then being the boss of the farmyard, wandering around nice and relaxed and eating chocolate whenever you want.

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Richard Keuter

Content Creator

Richard is the one who can turn plans and ideas into original media, both online and offline. Like a young dog, he wags his way through the day. Preferably with a Vietnamese spring roll on the side to put his creative brain to work.

Although he prefers a house full of dogs, he himself would rather be a cat. They are so relaxed. He can already see himself sitting on one of those sleds with huskies in front of it, being pulled through a winter landscape.

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Ingrid Rijsterborgh

QA & PV Officer

Ingrid's role at Kernfarm is to ensure that many aspects run smoothly. Together with her QA colleagues, she makes sure the legal rules are in order. She sniffs out a lot of quality documentation!

Perhaps that sniffing is also the reason why she would prefer to be a dog. But her family also demands her attention and her cat Evi regularly taps her on the shoulders for some quality time. Should there ever be some time left, Ingrid would like to travel; by land, sea or hot air balloon!

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Minke Dikker Hupkes

Warehouse Coordinator

The youngest employee at Kernfarm is Minke. Full of energy, she enters the building every day, where nothing is too much for her. In the warehouse, she has already implemented many efficiency improvements, and she also knows exactly how to make her colleagues happy with a tasty lunch and too many unhealthy cookies.

Sitting still is not Minke's thing, but once she's asleep, it's better to leave her alone. That's when she dreams of finally being tall, like a giraffe. Tall or short, we consider Minke a top performer.

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Pieter

Warehouse Assistant

In the Kernfarm warehouse, it's Pieter who stands out among all the ladies. He ensures that orders are neatly prepared for shipment before they go on transport. You would think he has seen enough chickens during the day, yet you can also wake him up for chicken at night.

He also enjoys a salty herring all at once, so his throat is ready for a nice tune. Pieter dreams of being able to sing well. And because we at Kernfarm love karaoke, we are naturally very happy to have such a singing talent!

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Eric Seesing

Commercial Manager Benelux

Our swine vet Eric has a lot of nice similarities with a pig; enterprising, smart, active and a real digger. In his versatile position as Commercial Manager, he makes an important contribution to Kernfarm.

You wouldn't expect it, but at home Eric is surrounded by horses, goats, chickens and a sheep instead of swines. The goats regularly break things down. nevertheless, Eric cannot get angry with them because they are so sweet and cuddly. Eric has no ambitions to turn himself into an animal, but if he could choose, he would like to see the world from a great height as a white-tailed eagle. Would you like to help Eric out of his dreams? Then bring him champagne, you can always wake him up for that!

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Koen De Meyer

Poultry Sales Manager

Not spouting off an ordinary story but listening carefully to customers to see if a solution can be found, that’s typical Koen. With his extensive experience in the poultry sector, Koen is a reliable partner at home and abroad.

Koen’s loyalty is obvious. When he hits the sack, he dreams of playing the violin very well. But even then, a friend can always wake him when they need his help. At home the first violin is played by his cat, who dominates the orchestra of dogs, goats and chickens.

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Hans van Gisteren

Sales manager Swine & Equine

Hans has a passion for pigs. He even wakes up every day in his former pig barn. Not surprisingly, he is your first point of contact for our pig portfolio. 

Whilst enjoying a beer, he likes to look out over his meadow at his pig... ehhh horse. If it was up to him, he would have a whole herd of those. Fortunately, he lives in a nature reserve where there are many Exmoor ponies and Tauros cows to admire. Because he spends many hours working with horses, Hans is also the right person to contact with questions about the horse portfolio!

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Aartie Somai

Happy Customer Specialist

If you call Kernfarm, chances are you will get Aartie on the line. With years of experience in the veterinary sector, she is happy to dive into your challenge.

Real diving is still a dream she is gathering some courage for. For now, she rather dreams of travelling around the world in a hippy van, to a warm destination. Her acrobatic hamster next to her in a hutch, her husband and children in the back seat. Luckily for us, she still puts her navigation on Kernfarm in Breukelen.

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Aartie Somai
Marieke Blom

Product Manager

A new product available? Then Marieke takes care of the practical translation. While scavenging between the various departments at Kernfarm, she manages to get the most relevant information on paper for vets and livestock farmers both online and offline.

Scavenging is also done at home. By her chickens. Together with her sheep and cats, it is like a petty animal farm at her home. Nothing is too crazy, but keep your hands of her sleep. Because at night, Marieke dreams about taking a trip around the world in her army truck camper. Of course, we hope she puts that one off for a while!

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Lieke Verhoeven

Operational Manager

Lieke ensures that all logistics processes within Kernfarm are neatly coordinated and run smoothly. Making colleagues and customers happy is her motivation. This busy bee never sits still! At Kernfarm we are very happy about that, because thanks to Lieke and her team things run smoothly. Sitting quietly and doing nothing is still on her list to learn. As long as you save that for home, Lieke!

At home, the schedule is geared to husband, children and the goldfish that wants to be fed every day at 6pm. Family expansion is imminent in the form of a guinea pig, or will it be a snake after all? Lieke dreams of taking a nice trip to Namibia. You can wake her up for that! When asked what else you can wake her up for, Lieke's answer is: only to tell me I can sleep for a few more hours. That way she can get back to rocking Kernfarms logistics!

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Esther van Schaik

Calling of e-mailing Kernfarm? Happy Customer Specialist Esther is always ready for you! Full of energy, she tackles all challenges as efficiently as possible. Esther has worked for a long time as a veterinary assistant and knows the ins and outs of a veterinary practice.

In contrast to her greyhound, who often runs around like the hare and then falls asleep like a log, Esther is not easily flustered. Although, she does consider herself a bit quirky; she associates herself with a panda - cute, funny, and sometimes a bit silly. We think these are naturally delightful qualities at Kernfarm.

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Andrew Burley

Commercial Manager UK & Ireland

When we were on the hunt for a poultry executive to connect with clients in the UK poultry sector, Andrew was there like a shot. We're thrilled about Andrew's arrival; with his experience, he's our king of the UK market for us!

Interestingly, he would like to be a lion himself, so 'king of the jungle' suits him well! Besides spending time with family and friends, you can also find him outdoors a lot, where he trains with his hunting dog. Getting his motorcycle license is still on his wishlist. Yes, he is not a chicken!

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