October 25th 1872

Foundation of Henri Ehrmann & Co.
Factory for metal cartridges in Karlsruhe / Germany

1898
Patent for "flexible metal tubes with beading folds" (convolutions)
Production of bellows and metal hoses for industrial applications
Company was the first ever manufacturer of seamless corrugated tubes in the world

1932
Licence production of Titeflex hoses
First steel expansion joints instead of tombac ones (as hitherto)
Production now includes metal hoses, metal bellows, expansion joints and
apparatus for heat economy

1945 until 1949
Renaming in "Industriewerke Karlsruhe AG" (IWK)
Patent for a technique for the production of warmly deformed steel bellows

1970
Merger with the company Keller & Knappich in Augsburg / Germany
Renaming of the company in "Industriewerke Karlsruhe Augsburg" (IWKA)
Divisions: Textile Technique, Expansion Joints and Control Technology,
Packaging Machines, Municipal Vehicles, Welding Machines, Machine Tools,
Military Technology, Molding and Drawing Technology

April 1st 1980
Foundation of "IWK Regler and Kompensatoren GmbH"
(Control Systems and Expansion Joints)
Relocation of the production plant to Stutensee-Blankenloch near Karlsruhe
Products: Control units, devices for measurement, expansion joints,
metal bellows and metal hoses

1987
Acquisistion of the companies
Tubest S.A. in Fère en Tardenois / France
Manufacturer of flexible metal hoses and
SFZ in Chassieu near Lyon / France
Manufacturer of expansion joints

1990
Acquisition of BOA AG in Rothenburg / Switzerland
as well as all subsidiaries and shareholdings in the USA,
the Netherlands, France, etc.
Manufacturer of expansion joints, metal bellows and metal hoses
Foundation of IWKA Regler und Kompensatoren Vertriebs GmbH in Quedlinburg / Germany
Assembling of metal hoses

2000
Selling of the control systems division to the Danish Danfoss Group

2001
Renaming of "IWK Regler and Kompensatoren GmbH" in
IWKA Balg- und Kompensatorentechnologie GmbH"
(Bellows and Expansion Joints Technology)

2002
Takeover of shares of the company Famas S.A. in Lodz / Poland
Assembling of metal hoses

2003
Foundation of IWKA South Africa (Pty) Ltd. in Port Elizabeth / South Africa
Manufacturer of metal hoses for exhaust systems

2006
IWKA AG (Holding) sells IWKA BKT with all its subsidiaries and shareholdings to the
German Private Equity company "Odewald Compagnie für Beteiligungen mbH" in Berlin
Renaming of the IWKA BKT GmbH in BOA BKT GmbH
Foundation of the BOA Holding GmbH as Holding company
for the whole BOA Group

2007
Foundation of sales offices
"BBA Kompensatoren und Rohrleitungstechnik Vertriebsgesellschaft mbH" in Vienna / Austria
and "BBA Kompenzátory s.r.o." in Pilsen / Czech Republic

2008
Foundation of BOA (Shanghai) Bellows Technology Ltd. in China

2010
Renaming of Tubest Flexible Solutions S.A.
in BOA Flexible Solutions S.A.S.
Foundation of BOA Flexible Solutions Ltd. in Chertsey/UK
AEA Investors LP becomes new shareholder of the BOA Group

2011
Acquisition of Flexial Corp. in Cookeville/TN, USA