<Tr> <Th> Years active </Th> <Td> 2009 - 2018 </Td> </Tr> <Tr> <Th> Organization </Th> <Td> WhatsApp Inc . </Td> </Tr> <Tr> <Th> Known for </Th> <Td> Co-founded WhatsApp </Td> </Tr> <Tr> <Th> Home town </Th> <Td> Fastiv </Td> </Tr>

Where did the founders of whatsapp previously work together