She made six voyages between 1803 and 1815 as an "extra ship" for the British East India Company (EIC).

[4] 1st EIC voyage (1803–1804): Captain Charles Graham sailed from Portsmouth on 30 June 1803, bound for Bengal.

[3] 2nd EIC voyage (1805–1807): Captain Graham sailed on 31 August 1805 from Cork, bound for Madras and Bengal.

[3] On 22 November she was at Ferdinand de Noronha, intending to sail the next day for Madras; she was in company with Ann.

[4] 3rd EIC voyage (1807–1809): Captain MacDougal sailed from Portsmouth on 17 September 1807, bound for Madeira, Madras, and Bengal.

[3] 4th EIC voyage (1810–1811): Captain MacDougal and Tigris sailed on 14 March 1810, from Portsmouth, bound for Madras and Bengal.

[3] 5th EIC voyage (1811–1813): Tigris and Captain MacDougal sailed for St Helena and Bengal in October 1811.

[a] On 19 December Tigris had to put back to Margate Roads, having lost anchors and cables.

Homeward bound, she left Saugor on 25 October, reached St Helena on 9 January 1813, and arrived at the Downs on 14 May.

[5] 6th EIC voyage (1814–1815): Captain MacDougal sailed from Portsmouth on 8 June 1814, bound for Madeira and Bombay.