R. Boltje & Zonen NV

The company was established in the Netherlands on July 8 1939 by Mr. Roelof Boltje.
Registration with the Chamber of commerce took place in Zwolle on January 1st 1939
Registration number was 06719 under the name R. Boltje Jzn. (and sons)

March 14 1949 the Company changed to NV (Ltd liability) CoC Nr. 10752.
The company capital at that time fl. 400,000.- (Dutch guilders)
Mr. Jan Boltje and Kor Boltje joint the company at a fl. 5000.- rate.
By the late 60's the followong companies were established:

Boltje do Brasil Dragagens LTDA
R. Boltje & Zonen GmbH
Transmundum International Hopper GmbH (Hochtief A.G. | R. Boltje & Zonen)
Taybol Ltd (Taylor Woodrow | R. Boltje & Zonen)

On September 19 1973 the Company went bankrupt.
In 1986 the company R. Boltje & Zonen Internationaal aannemersbedrijf voor grond, baggerwerken en wegenbouw was finally disolved.
This remarkable mid-sized and innovative company carried out dredging works across Europe, Africa and South America from the 1950's and became famous by the spectaculair extension of the Copacobana Beach in Rio de Janeiro
 
Source; http://rboltje.nl/ , read more on http://rboltje.blogspot.com (Dutch language)
 
 
CB Member no. 185 1950-1973 In 1971 startte Kor Boltje samen met Tijhongh Oei een nieuw baggerbedrijf op. Sandraga (saneamento de dragagem Ltd.) Dit bedrijf heeft tot 1994 bestaan Men had 2 cutterzuigers Merk Ammco 2 cat motoren ( 840 Pk) en zuigbuis van 40 cm - Zuigdiepte 10 Mtr Boltje had nog een bedrijf in Hamburg Bolwijk Nassbaggerei GmbH ( Boltje & Zonen) see youtube films: http://www.youtube.com/watch?v=Hp8FGKEQ9_4&feature=related http://www.youtube.com/watch?v=_sJrq1P8N20&feature=related http://www.youtube.com/watch?v=YsZRUsMfUGI&feature=related etc. etc. etc.
http://www.isaris.nl/ppm/dredging/index.php?movie=ugecSHcJFEc
http://www.isaris.nl/ppm/dredging/index.php?movie=j0cDhQq_Lhs
http://www.isaris.nl/ppm/dredging/index.php?movie=9EkQaxTFU7g