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ALLIGATOR Ventilfabrik GmbH • Richard-Steiff-Straße 4 • D-89537 Giengen / Brenz
Phone +49 (0)7322 130-1 • Fax +49 (0)7322 130-359 •

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Company History

Teddy bears and valves

1847 Margarete Steiff was born on 24 July in Giengen an der Brenz, near Ulm.
At the age of 1½ she contracts polio and is bound to a wheelchair for the rest of life. In spite of all difficulties, she trains to become a dress-maker.
Foto Margarete Steiff

1877 Founding of a felt clothes shop, where Margarete Steiff sells hand-sewn clothing and household articles.N?hstube

1880 The year of the official founding of the Margarete Steiff GmbH.
The appearance of the first Steiff animal – an elephant made of felt, to be used as a pin cushion. The elephant is the first soft, stuffed, textile toy animal which very quickly becomes popular with children as a toy.
1909 Margarete Steiff died on 9 May surrounded by her family.
Her nephews carry on with the firm.

1919 Available capacity in the metal turning shop at Margarete Steiff GmbH is used to produce bicycle valves. Consequential cost management and quality awareness help to win the German tire industry as a customer. In particular, the cooperation with Continental in Hannover brings substantial impulses.

1921 The ALLIGATOR Ventilfabrik is organisationally separated and appears independently on the market. Valve cores, bicycle valves, car and motorbike valves are produced. Under the responsible direction of Richard Steiff, the range of products is constantly expanded. Despite the worldwide economic crisis, innovation and quality provide for increasing sales.
Richard Steiff

1926 The trademark ALLIGARO is registered.
Warenzeichen ALLIGARO
1930 The patented ALLIGARO-valve pin ‘Easy pump’ for bicycles appears on the market. It is the forerunner of the ALLIGARO-Blitzventil, valued today by millions of cyclists all over the world.

1931 The ‘Erste Hanauer Präzisions Schrauben- und Fassondreherei’ is founded in Hanau. The already long-existent concept of producing tire valves is realized and the foundation stone for the manufacturing of tire-valves is laid.
Standort Mühlheim
1939 It is decided to relocate to Mühlheim.

1948 ALLIGATOR started running its own vulcanization section department for the production of rubber-based valves. Elastomer processing know-how develops. At the beginning of the 1950’s, the development and production of Snap-In valves for tubeless tires commences.
snap in ventile
1955 1955 brings the first drawings for Snap-In production, the norm proposal from Phoenix AG, the first molding drawings and the emergence of a standard specifications sheet. Likewise, in

1955 The company “Erste Hanauer Präzisionsschraubenfabrik Wilhelm Fritz KG“ is recorded in the Commercial Registry.

1956 The first Snap-In valves are designed and produced at the EHA Ventilfabrik Technicians and rubber specialists devise a rubber-coating process, unique at that time. The brass parts are rubberized without using a bonding agent. The rubber mixture used and the newly developed galvanic (chemical) pre-treatment method provide excellent conditions for the attainment of a good rubber-metal bonding.Erstes EHA Logo

1959 The EHA Ventilfabrik Wilhelm Fritz KG is recorded in the Commercial Registry. EHA Logo
1964 The ALLIGATOR Ventilfabrik GmbH becomes legally independent.

1966 The proportion of exports amounts to 45%.
At this point the valve business is already very international.

1968 Foundation of the valve manufacturer STOMIL in Sroda Wielkopolska near Poznan (Poland).Standort Sroda
The proportion of exports at EHA Ventilfabrik reaches 70% in 60 countries.



Start of the development of components for tire-pressure control systems.

Minority stake in the valve manufacturer STOMIL in Poland.

lila ventil
1997 Start of the development of residual pressure valves for air suspension systems in cars and SUVs.
Ventil gelb

1998 ALLIGATOR acquires EHA-Ventilfabrik Wilhelm Fritz GmbH & Co. KG.


2000 Total take over of STOMIL.

2003 Merger of EHA Ventilfabrik with ALLIGATOR Ventilfabrik GmbH.


The purchase of a new production plant in Nekla, Poland provides space for further growth.

Standort Nekla

© ALLIGATOR Ventilfabrik GmbH

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ALLIGATOR Ventilfabrik GmbH
Richard-Steiff-Straße 4
D-89537 Giengen /Brenz 

Ph. +49 (0)7322 130-1
Fax +49 (0)7322 130-359 

Logo Stomil      Logo EHA     Logo ALLIGATOR