 Burmeister joined the H.H.Baumgarten Company in 1846, which became a partnership with the opening of its engineering works, and was renamed B&B



Soon came the establishment of the B&B foundry in 1847, the delivery of its first steam engine in 1848, the renting of the Jacob Holm Shipyard at the 'Englishman's Place' in 1851, and the delivery of their first ship S/S Hermod in 1854, before Baumgarten retired from regular duties in 1861.With Baumgarten as a co-owner, in 1865, William Wain (1819–1882) joined what then became B&W.