1966

• Ludwig Dennerle opens a pet shop in Pirmasens 
• Start of a series of field trips in search of plants 
• Ludwig Dennerle cultivates and conducts research into tropical plants in his greenhouse at home

1968

• Greenhouses are leased in Thaleischweiler

1974

• Acquisition of the former school building in Vinningen and conversion into the company headquarters

1975

• Construction of greenhouses at the company's site in Vinningen

1978

• Expansion of the greenhouses 
• Closure of the pet shop in Pirmasens 
• First edition of the guide "Pflanzen für eine prächtige Unterwasserlandschaft" ("Plants for magnificent aquascapes") 
• Cooperation with various plant farms in the tropics begins

1990

• First edition of the Dennerle manual "System for a problemloses Aquarium" (System for a problem-free aquarium")

1992

• Launch of the fluorescent tube lighting segment (T8 Plant) for aquaria

1993

• Start of export business to France 
• Purchase of a building in Münchweiler for the production and storage of accessories 
• Further expansion of the greenhouses

1994

• Introduction of YADY fish food

1997

• Launch of garden pond products with FB3 and FB4 pond bacteria

1998

• Renewed expansion of the greenhouses, which now cover more than 8,000 m²

2001

• Acquisition of a building in Pirmasens for sales, exports and IT

2002

• The new Mbuna underwater trees, which are protected by utility patent, amaze the aquarium world at the Interzoo fair. 
• New edition of the Dennerle manual "The Big Dennerle Guide" 
• First steps in the field of filter materials with Turbo FilterChips and Turbo FilterPearls

2004

• A. C. Nielsen confirms Dennerle as the market leader in the area of pond care with the FB3 and FB4 pond bacteria. 
• Launch of Dennerle's own range of aquarium filter materials 
• Launch of the Trocal reflectors

2006

• The company's founder, Ludwig Dennerle, died on 13 February 2006 and the age of 67. Heinz Dennerle becomes Dennerle's sole managing director.

2007

• Launch of the new Trocal T5 fluorescient tube technology. The new tubes offer higher light intensity combined with a smaller diameter.

2008

• Presentation of the new nano products at the Interzoo fair. This range positions Dennerle as the first manufacturer to offer a complete nano aquarium programme.