1951 | Keller Cabinet Makers founded by Paul Keller senior in Schönenberg­

1970 | Design kitchens made of aluminium

1971 | First worktop for trading rooms

1981 | Business taken over by Erich Keller, new building in Sulgen

1985 | First patent for an Erich Keller communications work desk

1988 | V-Com, the first modular communications work desk with an integrated air-conditioning system.

1992 | X-Com, the first free-standing communications workplace

1993 | The world’s first closed communications workplace with a round screen display.

1997 | Cool-Top, the world’s first workplace cooling system directly at the heat source

1999 | U-Com, the space-saving communications workplace

2000 | Cool-top wins the «prix eta» innovation award

2001 | AluOffice is awarded the red dot «best selection office design» prize.

2001 | Cool-Top, the first individually configurable workspace cooling system

2002 | L-Com, the height-adjustable control centre table

2004 | Letter furniture was awarded the red dot design award 2004 «best of the best» for best-of-breed design quality and nominated for the design prize of the Federal Republic of Germany.

2004 | Cool-Rack, cooled cabinets that do not emanate heat or annoying noise

2004 | A new era in interiors starts with the furnishing the UNO in New York.

2005 | Rio-Term, the parapet device for best-of-breed interior atmosphere

2006 | The new U-Com: very flexible, ergonomically thought-out and adjustable for various ventilation and air-conditioning systems.

2007 | The move into the new building will see the production area increase in size to over 9000 m².

2009 | The Green Heinrich-Böll-Foundation in Berlin selects Rio-Therm air conditioning for their new ecological head office building.

2010 | Finalist for the Osec Export Award, the prize of the official Swiss Export promoter.

2011 | E-Com: Modular and very flexible design. Ideal for Dealing Rooms and Control Centres. 

2011 | Winner of the Product Competition ‹Active Transfer Passage› launched by the city of Zurich and the Minergie Organisation. A comfort ventilator is integrated in doors to provide a pleasant climate in all rooms.