

Cindy Bosma is partner, co-founder and the business brain behind Concern. She makes room for creativity by overseeing an ideal surroundings for the birth of brilliant ideas. This makes for a great work environment. But since the bottom line must also be met, she directs the creativity in a way that also ensures Concern’s consistent growth and development as a business.
And she does more… Within Concern, Bosma is the guardian of the rational. While applied design may be about nice things, it’s also about explaining what the exact choices behind a design were - and motivating the translation of a client’s DNA into the final product.

Joost Alferink is a writer, creative entrepreneur, sparring partner and designer. And more. But mostly he is a free thinker. Alferink helps clients in finding their brand’s true identity and then translating that into concrete projects. Large and complex projects are approached with a serious lightness, smaller jobs with meticulous attention.
Alferink considers design as just one of the many phases that goes into every assignment. He is also a conversation partner who uncovers the secret behind any brand, project or problem and then uses that to find the best and most innovative answer.
Alferink walks the balance between madman and rationalist—both of whom are found in this one man. He does however tame the madman enough to come within a client’s basic wishes. And another interesting detail: Alferink always meets his deadlines.
After a career in large-scale design projects, architect Annelous Rosenstok was ready for more intimate and direct relationships with her clients. And she found this as an interior architect with Concern. With over 20 years experience, Rosenstok is equal parts technical as she is conceptual.
Rosenstok’s vision is most apparent in her belief that a good design can only come from the grace of careful process and the choosing of detailing and materials—without ever losing touch with the ‘big picture’.
She prefers to work on a ‘total concept’ where all the details are worked out. If it was up to her, Rosenstok would even choose the coffee mugs and letterheads. The same reasoning goes behind her careful search for personal and characteristic detailing that fits seamlessly with the client’s wishes. Concern’s multidisciplinary approach makes this entirely possible.
Sustainability also plays an important role in Rosenstok’s work. But her definition embraces more than just making a responsible use of materials and energy. Most importantly, an interior must make an obvious contribution to the happiness and well-being of everyone who uses it.
vincent beekman
elsa geurtzen
koert broekman
Koert Broekman is rock guitarist, thinker and respected martial artist. And at Concern, he is an experienced all-round designer. Broekman makes interiors with a wholly unique identity that are always functional and fit seamlessly with the client’s established culture. Aesthetics instead of gloss. Method over style.
While Broekman always begins with a central idea, he is also passionate about trades and craft. His knowledge of materials and production techniques are the basis by which the whole design process is steered. His craftsmanship is also expressed through his sophisticated artist impressions, which give a clear insight into the ideas behind the designs. In this way Broekman allows clients to see a new world before it is even built.
Broekman is always curious about the new. Staying clear of bias, his designs are always born from a well-considered concept where the true question behind the assignment is central.

Ernestien Idenburg is Operations Manager at Concern. Following a career as a lawyer in Amsterdam and with a bank in New York, she eventually decided to do what she really wanted to do - combining her business skills with her passion for design. In order to add impetus to her career change, she studied Interior Design at the Chelsea College of Art & Design in London before returning to Amsterdam.
At Concern, Ernestien is responsible for the organisational structure and international growth of the company, while fulfilling the role of the critical conscience of the agency.
Vunderink works for Concern as an artist who provides valuable input to a variety of projects. As an artist, he constantly explores the relationships between colours, lines and image formation. In his work for Concern, Vunderink also applies a method whereby he continuously searches for clear and logical solutions that will meet the requirements of our clients.
Vunderink has this to say about combining artistry and working at Concern: “I’m working as a visual artist under the wing of my great love, the mother of art forms. What more could I want?”
Van de Ridder seeks and finds new opportunities in everything she does. She is led by a strong intuition and an eye for both detail and the beauty in the ordinary. Van de Ridder is very passionate and draws her inspiration from whatever disciplines surrounded her. This becomes evident in her love of photography and graphic design, two aspects that converge in her daily tasks.
Marieke’s work at Concern involves making contribution to a range of projects and managing the images and text found on www.concern.nu.

Junior architect Steef Pootjes believes that interior design is very much more than just putting up some wallpaper, applying a layer of paint and placing some furnishings. For Pootjes, it's all about an interior in dialogue with the surrounding and it's users. An interior can be an independent layer within the building, or it can fuse with the surrounding architecture. An interior can seek confrontation, contrast or the denial of one’s surroundings. But it can also be a place to come to rest - a place of refuge.
Anne Brouwer was educated as a product designer, but ended up in exhibition design after university. In this field he worked for nine years creating conceptual environments and experiences.
His main goals are story-driven design and a close relationship with the client. Stories do not always have to be visible in the end result but can be very valuable during the creation process. He loves to investigate and
customize an interior specifically with and for a client. Next to visualizing ideas or words into 3D an important task of a designer is to find these and give real meaning. Interior should give logical feedback to its function for all senses.
After working in theatre for 10 years, Nick made a move to Amsterdam and also into Graphic Design,
working in-house for an Amsterdam based retail company for 7 years.
Making sure the office runs smoothly and jumping in wherever help is needed,
Nick's focus is on making sure everyone has what they need, before they know they need it.
According to Kloes, it is important to place the end user at the centre of any design, so that their experience of using the space is pleasurable. Without ignoring the building, he strives for a combination of functionality and continuity.
Alongside interieur design, Bart has a passion for architecture, which is of course extremely important in his daily work.