Since 1946, CK Group has been active in two areas: business support for companies and sports in the Grand Duchy of Luxembourg.

Charles Kieffer, the founder of the group, began his activities with photography and a few years later entered the field of copying to become, today, a company expert in the digital accompaniment of companies and the improvement of the work experience.

Charles Kieffer’s philosophy of “a healthy mind in a healthy body” led him to open the Sportcenter in Kockelscheuer in 1980 and then 4 fitness centres across the country. His ideas gave birth to our current baseline “healthy people, healthy business“.

Since 1946, the company has grown significantly by keeping up with the latest technological and sporting innovations.





New identity CK Charles Kieffer Group with 2 brands "CK | Office technologies" and "CK | Sport & Fitness", under the motto "healthy people, healthy business"


50th Anniversary CK Image Appointment by the London Stock Exchange among the 1000 most inspiring companies in Europe.


70th Anniversary CK in the presence of the Luxembourg Prime Minister Opening of the 4th CK Fitness Center in Junglinster


Intensification of IT department with internationally renowned partners


Infrastructure Update: Headquarters, CK Image, CK Sportcenter and CK Business Center


Death of Charles Kieffer, founder of the CK Group


Opening of the 3rd CK Fitness Center at the Topaz Shopping Center in Mersch



Opening of the 2nd CK Fitness Center at the "Les Thermes" aquatic and leisure center in Bertrange / Strassen


C.K. S.A. is approved as a support PFS since 2008.


Introduction of remote maintenance (Konica Minolta Customer Satisfaction Remote Control System) for the remote management of the machine park via GPRS.


Implementation of geolocation of technicians by GPS in the field


CK Group celebrates 60 years of existence


Consolidation of all Group activities at CK Business Center in Leudelange.



Opening of the CK Image photo and copy shop in Esch sur Alzette.


The CK Group takes over the Fitness Center in Esch sur Alzette


Minolta releases its first copier "full color", the CF 70



1st copier with A0 plans on plain paper, CK becomes AutoCAD System Center


CK Sport Center 8-run bowling world championship


Minolta files a patent for a simultaneous two-color process: Simulcolor


1st world: Minolta releases the first copier equipped with a zoom.


Opening of CK Sportcenter in Kockelscheuer: the biggest indoor tennis and bowling center in Europe.



Opening of five photo shops.


Exclusive introduction in Luxembourg of the Minolta Copieurs brand.


Charles Kieffer invests in the microfilming of documents; first clients: ARBED, CECA, State Archives, National Library, PTT ...



All Luxembourg dailies are printed on Kalle Ozasol plates.


Opening of the first company photo store in Esch sur Alzette: Interphot


Introducing the first portable electronic flash for professionals and individuals, given its affordable price.



Charles Kieffer introduces in Luxembourg the first "small offset" machine.


Charles Kieffer hires his first employee.



1st copier by transfer process: negative + positive + bath.


Representation in the field of photography and chemical laboratories, films, projectors and cameras.


Foundation of the company CK in Steinfort.

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Since 1946, CK Group has been offering a wide range of services in Luxembourg.

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